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<div id="projectname">libaaruformat<span id="projectnumber">&#160;1.0</span>
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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<a href="erasure_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * This file is part of the Aaru Data Preservation Suite.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (c) 2019-2026 Natalia Portillo.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * published by the Free Software Foundation; either version 2.1 of the</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * License, or (at your option) any later version.</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * This library is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> *</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * License along with this library; if not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> */</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &quot;<a class="code" href="aaruformat_8h.html">aaruformat.h</a>&quot;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &quot;<a class="code" href="context_8h.html">aaruformat/context.h</a>&quot;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include &quot;<a class="code" href="consts_8h.html">aaruformat/consts.h</a>&quot;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &quot;<a class="code" href="enums_8h.html">aaruformat/enums.h</a>&quot;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include &quot;<a class="code" href="errors_8h.html">aaruformat/errors.h</a>&quot;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include &quot;<a class="code" href="data_8h.html">aaruformat/structs/data.h</a>&quot;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include &quot;<a class="code" href="ddt_8h.html">aaruformat/structs/ddt.h</a>&quot;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include &quot;<a class="code" href="erasure_8h.html">aaruformat/structs/erasure.h</a>&quot;</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include &quot;<a class="code" href="index_8h.html">aaruformat/structs/index.h</a>&quot;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include &quot;<a class="code" href="internal_8h.html">internal.h</a>&quot;</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include &quot;<a class="code" href="log_8h.html">log.h</a>&quot;</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#include &quot;<a class="code" href="gf256_8h.html">lib/gf256.h</a>&quot;</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#include &quot;<a class="code" href="reed__solomon_8h.html">lib/reed_solomon.h</a>&quot;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment">/* =========================================================================</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment"> * Read-path structures (not in on-disk format, internal only)</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment"> * ========================================================================= */</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span></div>
<div class="foldopen" id="foldopen00046" data-start="{" data-end="};">
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="structEcReadStripe.html"> 46</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>{</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f"> 48</a></span> uint16_t <a class="code hl_variable" href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f">actual_k</a>; </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97"> 49</a></span> <a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a> *<a class="code hl_variable" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">data_entries</a>; </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f"> 50</a></span> uint64_t *<a class="code hl_variable" href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f">parity_offsets</a>; </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="erasure_8c.html#a2f164deb906da3861ed577a951149a23"> 51</a></span>} <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a>;</div>
</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span></div>
<div class="foldopen" id="foldopen00054" data-start="{" data-end="};">
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="structEcBlockLookupEntry.html"> 54</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>{</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="structEcBlockLookupEntry.html#a13a8928f4f9cc3d0d7a30b1d0530c016"> 56</a></span> uint64_t <a class="code hl_variable" href="structEcBlockLookupEntry.html#a13a8928f4f9cc3d0d7a30b1d0530c016">block_offset</a>; </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="structEcBlockLookupEntry.html#aedeac38371118113a77e02cc65512320"> 57</a></span> uint32_t <a class="code hl_variable" href="structEcBlockLookupEntry.html#aedeac38371118113a77e02cc65512320">stripe_index</a>; </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="structEcBlockLookupEntry.html#a8645b89803f927a7608a6f8d30d74292"> 58</a></span> uint16_t <a class="code hl_variable" href="structEcBlockLookupEntry.html#a8645b89803f927a7608a6f8d30d74292">position</a>; </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="structEcBlockLookupEntry.html#aafe5aa886cf56f4dbcc9c7426792e61c"> 59</a></span> UT_hash_handle <a class="code hl_variable" href="structEcBlockLookupEntry.html#aafe5aa886cf56f4dbcc9c7426792e61c">hh</a>;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="erasure_8c.html#a49845afc245ef4c7570c1a59b8e2c893"> 60</a></span>} <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a>;</div>
</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment">/* UT_array icd for completed stripe descriptors.</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment"> * Each descriptor is a variable-length blob serialized in-place. We store</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment"> * them as flat byte buffers since the size per stripe depends on K and M. */</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="erasure_8c.html#a1883da545c74667f3438d8e48b195aa1"> 65</a></span><span class="keyword">static</span> UT_icd <a class="code hl_variable" href="erasure_8c.html#a1883da545c74667f3438d8e48b195aa1">ec_stripe_icd</a> = {<span class="keyword">sizeof</span>(uint8_t), NULL, NULL, NULL};</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="comment">/* Forward declarations */</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#aa258c90d05ad57fc4c378679e5187e48">ec_flush_data_stripe</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, uint32_t slot);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span></div>
<div class="foldopen" id="foldopen00082" data-start="{" data-end="}">
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"><a class="line" href="decls_8h.html#a8b0f3ab93ca60ce00321ca28c2484c7c"> 82</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> int32_t <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="erasure_8c.html#a8b0f3ab93ca60ce00321ca28c2484c7c">aaruf_set_erasure_coding</a>(<span class="keywordtype">void</span> *context, uint8_t algorithm, uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, uint16_t M)</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span>{</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Entering aaruf_set_erasure_coding(%p, %u, %u, %u)&quot;</span>, context, algorithm, <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, M);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">if</span>(context == NULL) <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="enums_8h.html#af887903d155851fe30d08053c4b2c1b8a2ee503de2bb99eb6a677fd9871a9c44d">AARUF_STATUS_INVALID_CONTEXT</a>;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx = (<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *)context;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a7dc0a0fe0bf6223ff4587fd01c360b76">magic</a> != <a class="code hl_define" href="consts_8h.html#a3c3ba66fe2b547655c9e4b16a1ba519a">AARU_MAGIC</a>) <span class="keywordflow">return</span> <a class="code hl_enumvalue" href="enums_8h.html#af887903d155851fe30d08053c4b2c1b8a2ee503de2bb99eb6a677fd9871a9c44d">AARUF_STATUS_INVALID_CONTEXT</a>;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span>(!ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a6f61f9ea20f4e3b791a0d6388dd43651">is_writing</a>) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a1df49eaa19eaa14891b6aaab966a9bc6">AARUF_READ_ONLY</a>;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">/* Validate parameters */</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">if</span>(<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> == 0 || M == 0) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a8fc3ecb14777e72bebad62084b6caf16">AARUF_ERROR_INCORRECT_DATA_SIZE</a>;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span>((uint32_t)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + M &gt; 255) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a8fc3ecb14777e72bebad62084b6caf16">AARUF_ERROR_INCORRECT_DATA_SIZE</a>;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">if</span>(algorithm == <a class="code hl_enumvalue" href="enums_8h.html#a83c99da65804eb80cfb955eb9a15ef5ead3ee61b96379729331df2b6ed04a95a0">kErasureCodingXor</a> &amp;&amp; M != 1) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a8fc3ecb14777e72bebad62084b6caf16">AARUF_ERROR_INCORRECT_DATA_SIZE</a>;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">/* Compute data shard size: max possible on-disk block size.</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="comment"> * = sizeof(BlockHeader) + LZMA_PROPERTIES_LENGTH + (1 &lt;&lt; dataShift) * sectorSize</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span><span class="comment"> * This is the worst case: uncompressed block + LZMA properties header. */</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> uint32_t sectors_per_block = 1U &lt;&lt; ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a04c5fb367458a6e9dd0a50b39f6edec2">user_data_ddt_header</a>.<a class="code hl_variable" href="structDdtHeader2.html#ad9a2beb3a79bc6c239ba04fe341e0cde">dataShift</a>;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> uint32_t max_payload = sectors_per_block * ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a78edd22a0d4a0cbbbbdb783b3df4ba5a">current_block_header</a>.<a class="code hl_variable" href="structBlockHeader.html#a5bd50f95c8c1f91e5013a1a154690beb">sectorSize</a>;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">if</span>(max_payload == 0) max_payload = sectors_per_block * 512; <span class="comment">/* fallback if sectorSize not yet set */</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> uint32_t shard_size = (uint32_t)<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>) + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a> + max_payload;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="comment">/* Create RS codec */</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <a class="code hl_struct" href="structrs__context.html">rs_context</a> *rs = <a class="code hl_function" href="reed__solomon_8c.html#a68a7b13ef6443640abc2818a3bd7d5bf">rs_create</a>(<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, M);</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span>(!rs) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="comment">/* Allocate K stripe slots × M parity buffers */</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> uint8_t **parity = (uint8_t **)calloc((<span class="keywordtype">size_t</span>)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * M, <span class="keyword">sizeof</span>(uint8_t *));</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">if</span>(!parity) { <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs); <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>; }</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; (uint32_t)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * M; i++)</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> parity[i] = (uint8_t *)calloc(1, shard_size);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">if</span>(!parity[i])</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> {</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keywordflow">for</span>(uint32_t j = 0; j &lt; i; j++) free(parity[j]);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> free(parity);</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs);</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> }</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="comment">/* Allocate tracking arrays (K entries per slot × K slots) */</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> uint64_t *offsets = (uint64_t *)calloc((<span class="keywordtype">size_t</span>)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, <span class="keyword">sizeof</span>(uint64_t));</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> uint32_t *sizes = (uint32_t *)calloc((<span class="keywordtype">size_t</span>)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, <span class="keyword">sizeof</span>(uint32_t));</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> uint64_t *crcs = (uint64_t *)calloc((<span class="keywordtype">size_t</span>)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, <span class="keyword">sizeof</span>(uint64_t));</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> uint16_t *counts = (uint16_t *)calloc(<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, <span class="keyword">sizeof</span>(uint16_t));</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span>(!offsets || !sizes || !crcs || !counts)</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> free(offsets); free(sizes); free(crcs); free(counts);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; (uint32_t)<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> * M; i++) free(parity[i]);</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> free(parity);</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs);</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> }</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="comment">/* Initialize completed stripes array */</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> UT_array *stripes = NULL;</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> utarray_new(stripes, &amp;<a class="code hl_variable" href="erasure_8c.html#a1883da545c74667f3438d8e48b195aa1">ec_stripe_icd</a>);</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="comment">/* Store in context */</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a25448606ea0870a817f4a2b6c94f7698">ec_algorithm</a> = algorithm;</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a> = <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a> = M;</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a> = shard_size;</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a> = rs;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a> = parity;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a> = offsets;</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a> = sizes;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a> = crcs;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a> = counts;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9b5df0512665a9b31fbfff6dc912b6eb">ec_total_data_blocks</a> = 0;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a> = stripes;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">ec_enabled</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">/* Set feature flag so old readers know parity data exists */</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">header</a>.<a class="code hl_variable" href="structAaruHeaderV2.html#a9dae72bee3d161760dbbe389e4a70444">featureCompatibleRo</a> |= <a class="code hl_enumvalue" href="enums_8h.html#a8224cd67a8e4e3d365e0371899c7065fa8b803843c50589f197b6461d1c74ea9b">AARU_FEATURE_ROCOMPAT_ERASURE</a>;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Erasure coding configured: algorithm=%u K=%u M=%u shard_size=%u&quot;</span>, algorithm, <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, M, shard_size);</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Exiting aaruf_set_erasure_coding() = 0&quot;</span>);</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a1d6e49f7e8a1fa489efa0a582e90b5de">AARUF_STATUS_OK</a>;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span>}</div>
</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span></div>
<div class="foldopen" id="foldopen00193" data-start="{" data-end="}">
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"><a class="line" href="decls_8h.html#a51fe2ca1a6eabf109f0cfc4b3223508b"> 193</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> int32_t <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="erasure_8c.html#a51fe2ca1a6eabf109f0cfc4b3223508b">aaruf_set_erasure_coding_auto</a>(<span class="keywordtype">void</span> *context, uint8_t recovery_percent)</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>{</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Entering aaruf_set_erasure_coding_auto(%p, %u)&quot;</span>, context, recovery_percent);</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">if</span>(recovery_percent == 0 || recovery_percent &gt; 100)</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a8fc3ecb14777e72bebad62084b6caf16">AARUF_ERROR_INCORRECT_DATA_SIZE</a>;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="comment">/* M scales with recovery percentage: more recovery = more parity blocks.</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span><span class="comment"> * Target K ≈ 20 (reasonable stripe size), so M ≈ 20 * percent / 100.</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span><span class="comment"> * Clamp to [2, 8]: minimum M=2 for RS burst tolerance, max M=8 for memory. */</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> uint16_t M = (uint16_t)((20 * (uint32_t)recovery_percent + 50) / 100); <span class="comment">/* rounded */</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">if</span>(M &lt; 2) M = 2;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">if</span>(M &gt; 8) M = 8;</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = (uint16_t)(M * 100 / recovery_percent);</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keywordflow">if</span>(<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> &lt; 1) <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = 1;</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> <span class="keywordflow">if</span>(<a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + M &gt; 255) <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = 255 - M;</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Auto EC: recovery_percent=%u -&gt; K=%u M=%u&quot;</span>, recovery_percent, <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, M);</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordflow">return</span> <a class="code hl_function" href="erasure_8c.html#a8b0f3ab93ca60ce00321ca28c2484c7c">aaruf_set_erasure_coding</a>(context, <a class="code hl_enumvalue" href="enums_8h.html#a83c99da65804eb80cfb955eb9a15ef5ea80cd481d5fe067366bbde7db7cab4e22">kErasureCodingRsVandermonde</a>, <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>, M);</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span>}</div>
</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span></div>
<div class="foldopen" id="foldopen00228" data-start="{" data-end="}">
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#a676c380c73d5adf73afd7613ec06b29d"> 228</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#a676c380c73d5adf73afd7613ec06b29d">ec_accumulate_data_block</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, <span class="keyword">const</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> *block_header, <span class="keyword">const</span> uint8_t *lzma_props,</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keyword">const</span> uint8_t *payload, uint32_t payload_size, uint64_t file_offset)</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span>{</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">if</span>(!ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">ec_enabled</a>) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">const</span> uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>;</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="keyword">const</span> uint16_t M = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>;</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">const</span> uint32_t shard = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a>;</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> </div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="comment">/* Determine which stripe slot this block goes to (interleaved round-robin) */</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> uint32_t slot = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9b5df0512665a9b31fbfff6dc912b6eb">ec_total_data_blocks</a> % <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="comment">/* Position within this slot&#39;s stripe */</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> uint16_t pos = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot];</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="comment">/* Build on-disk shard in a temp buffer:</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span><span class="comment"> * [BlockHeader] [LZMA props if LZMA] [payload]</span></div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span><span class="comment"> * Remaining bytes to shard_size are implicitly zero (parity buffers were calloc&#39;d) */</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> uint32_t actual_size = (uint32_t)<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>);</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">if</span>(block_header-&gt;<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a> &amp;&amp; lzma_props)</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> actual_size += <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> actual_size += payload_size;</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">/* We need a temporary flat copy of the on-disk representation for CRC64 and parity accumulation */</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> uint8_t *shard_buf = (uint8_t *)calloc(1, shard);</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">if</span>(!shard_buf) <span class="keywordflow">return</span>; <span class="comment">/* Best effort — if OOM, skip parity for this block */</span></div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> </div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="comment">/* Copy BlockHeader */</span></div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> memcpy(shard_buf, block_header, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>));</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> uint32_t offset = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>);</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="comment">/* Copy LZMA properties if applicable */</span></div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keywordflow">if</span>(block_header-&gt;<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a> &amp;&amp; lzma_props)</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> {</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> memcpy(shard_buf + offset, lzma_props, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> offset += <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> }</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="comment">/* Copy payload */</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> memcpy(shard_buf + offset, payload, payload_size);</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> </div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="comment">/* Compute CRC64 of the zero-padded shard */</span></div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> uint64_t shard_crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(shard_buf, shard);</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> </div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="comment">/* Record tracking info */</span></div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="keywordtype">size_t</span> tracking_idx = (size_t)slot * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + pos;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a>[tracking_idx] = file_offset;</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a>[tracking_idx] = actual_size;</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a>[tracking_idx] = shard_crc;</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> </div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="comment">/* Accumulate into parity buffers for this slot */</span></div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> {</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> uint8_t coeff = <a class="code hl_function" href="reed__solomon_8c.html#ada549b6a6028807b96d975bba70bea2d">rs_get_coefficient</a>((<a class="code hl_struct" href="structrs__context.html">rs_context</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a>, m, pos);</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordtype">size_t</span> parity_idx = (size_t)slot * M + m;</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <a class="code hl_function" href="reed__solomon_8c.html#ab02dd67e8f4b96de007048f30649adb1">rs_encode_incremental</a>(coeff, shard_buf, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a>[parity_idx], shard);</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> }</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> </div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> free(shard_buf);</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> </div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot]++;</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9b5df0512665a9b31fbfff6dc912b6eb">ec_total_data_blocks</a>++;</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> </div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> <span class="comment">/* Check if this stripe slot is full → write parity blocks */</span></div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot] == <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>)</div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> {</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <a class="code hl_function" href="erasure_8c.html#aa258c90d05ad57fc4c378679e5187e48">ec_flush_data_stripe</a>(ctx, slot);</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> }</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span>}</div>
</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span></div>
<div class="foldopen" id="foldopen00304" data-start="{" data-end="}">
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#aa258c90d05ad57fc4c378679e5187e48"> 304</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#aa258c90d05ad57fc4c378679e5187e48">ec_flush_data_stripe</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, uint32_t slot)</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span>{</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">const</span> uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>;</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keyword">const</span> uint16_t M = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>;</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="keyword">const</span> uint32_t shard = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a>;</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> uint16_t actual_k = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot];</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> </div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="keywordflow">if</span>(actual_k == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="comment">/* Build and serialize stripe descriptor:</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span><span class="comment"> * [actualK: uint16_t]</span></div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span><span class="comment"> * [actualK × StripeDataBlockEntry: offset(8) + onDiskSize(4) + shardCrc64(8) = 20 bytes each]</span></div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span><span class="comment"> * [M × StripeParityBlockEntry: offset(8) = 8 bytes each]</span></div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span><span class="comment"> */</span></div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="keywordtype">size_t</span> desc_data_size = <span class="keyword">sizeof</span>(uint16_t) + (<span class="keywordtype">size_t</span>)actual_k * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>) +</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> (<span class="keywordtype">size_t</span>)M * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> uint8_t *desc = (uint8_t *)calloc(1, desc_data_size);</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="keywordflow">if</span>(!desc) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> uint8_t *p = desc;</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> </div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="comment">/* Write actualK */</span></div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> memcpy(p, &amp;actual_k, <span class="keyword">sizeof</span>(uint16_t)); p += <span class="keyword">sizeof</span>(uint16_t);</div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> </div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <span class="comment">/* Write data block entries */</span></div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="keywordflow">for</span>(uint16_t k = 0; k &lt; actual_k; k++)</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> {</div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordtype">size_t</span> idx = (size_t)slot * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + k;</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a> entry;</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#a7aac714b3d98b543e792537fd7c8d3fc">offset</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a>[idx];</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#a3351d43103f9f7fbd9f4486161a1656d">onDiskSize</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a>[idx];</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#af85494afc772fe1469927c826e24a1b2">shardCrc64</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a>[idx];</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> memcpy(p, &amp;entry, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>)); p += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>);</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> }</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="comment">/* Write M parity blocks to disk */</span></div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> uint64_t alignment_mask = (1ULL &lt;&lt; ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a04c5fb367458a6e9dd0a50b39f6edec2">user_data_ddt_header</a>.<a class="code hl_variable" href="structDdtHeader2.html#aa67b097c3a20f926ede495d27152f1c0">blockAlignmentShift</a>) - 1;</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> </div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> {</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordtype">size_t</span> parity_idx = (size_t)slot * M + m;</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> uint8_t *parity_data = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a>[parity_idx];</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> </div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> <span class="comment">/* Compress the parity shard using the same settings as data blocks */</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> parity_header;</div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> memset(&amp;parity_header, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>));</div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a3b03f118fb2dc3dcef3f87a82238e358">identifier</a> = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a>;</div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#ac31ad48f3362a43175c94ec2e30662ad">type</a> = <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a>;</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>;</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a5bd50f95c8c1f91e5013a1a154690beb">sectorSize</a> = 0;</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a> = shard;</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = shard;</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">crc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(parity_data, shard);</div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = parity_header.<a class="code hl_variable" href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">crc64</a>;</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> </div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="comment">/* Try compression */</span></div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> uint8_t *cmp_buf = NULL;</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="keywordtype">size_t</span> cmp_size = 0;</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> </div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a130daf19dbed426f1c4c6f82691bc054">compression_enabled</a>)</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> {</div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> cmp_buf = (uint8_t *)malloc((<span class="keywordtype">size_t</span>)shard * 2);</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <span class="keywordflow">if</span>(cmp_buf)</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> {</div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ad027cde303f65d3ccc5b18a879692782">use_zstd</a>)</div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> {</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> cmp_size = <a class="code hl_function" href="decls_8h.html#a3950b73c924a7096bb2313e0858a315a">aaruf_zstd_encode_buffer</a>(cmp_buf, (<span class="keywordtype">size_t</span>)shard * 2, parity_data, shard,</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9f694f685458e2142e116da91727de38">zstd_level</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#abd11e50d05e8f007bf084a586bad0fe9">num_threads</a>);</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keywordflow">if</span>(cmp_size &gt; 0 &amp;&amp; cmp_size &lt; shard)</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> {</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a>;</div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = (uint32_t)cmp_size;</div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(cmp_buf, (uint32_t)cmp_size);</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9cf4d3d7117a279de4c178eb7af217d6">has_zstd_blocks</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> }</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> {</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> free(cmp_buf);</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> cmp_buf = NULL;</div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> }</div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> }</div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> {</div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="keywordtype">size_t</span> dst_size = (size_t)shard * 2;</div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordtype">size_t</span> props_size = <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> uint8_t lzma_props[<a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>] = {0};</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <a class="code hl_function" href="decls_8h.html#a0e69fad529047d6fe9440b1fc66c3f85">aaruf_lzma_encode_buffer</a>(cmp_buf, &amp;dst_size, parity_data, shard, lzma_props, &amp;props_size, 9,</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#adc67f6a6ef1602648bb064d47eb1fe88">lzma_dict_size</a>, 4, 0, 2, 273, <a class="code hl_define" href="internal_8h.html#a96247194f6c1e4090020e2a3691f8c9d">LZMA_THREADS</a>(ctx));</div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keywordflow">if</span>(dst_size + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a> &lt; shard)</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> {</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a>;</div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = (uint32_t)(dst_size + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> parity_header.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(cmp_buf, (uint32_t)dst_size);</div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> </div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> <span class="comment">/* Write: header + lzma_props + compressed data */</span></div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> uint64_t parity_offset = (uint64_t)<a class="code hl_function" href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> parity_offset = (parity_offset + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)parity_offset, SEEK_SET);</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> </div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> fwrite(&amp;parity_header, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> fwrite(lzma_props, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> fwrite(cmp_buf, dst_size, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> free(cmp_buf);</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> </div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <span class="comment">/* Record parity offset in descriptor */</span></div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> <a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a> pentry;</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> pentry.<a class="code hl_variable" href="structStripeParityBlockEntry.html#a4222801a62acbce61990ee79faf26050">offset</a> = parity_offset;</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> memcpy(p, &amp;pentry, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>)); p += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> </div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="comment">/* Add index entry */</span></div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> ie = {.blockType = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a>, .dataType = <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a>,</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> .offset = parity_offset};</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> utarray_push_back(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, &amp;ie);</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a63616c8450e9e1853e0645714fe310cb">dirty_index_block</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> </div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="comment">/* Update next_block_position */</span></div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> uint64_t total = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>) + parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>;</div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a939b702f75e80062bc635add4c3ab142">next_block_position</a> = (parity_offset + total + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> </div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> <span class="comment">/* Reset parity buffer */</span></div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> memset(parity_data, 0, shard);</div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> }</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> {</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> free(cmp_buf);</div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> cmp_buf = NULL;</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> }</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> }</div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> }</div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> }</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> </div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <span class="comment">/* Write uncompressed (or compressed non-LZMA) parity */</span></div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> uint64_t parity_offset = (uint64_t)<a class="code hl_function" href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> parity_offset = (parity_offset + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)parity_offset, SEEK_SET);</div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> </div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> fwrite(&amp;parity_header, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> <span class="keywordflow">if</span>(cmp_buf)</div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> {</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> fwrite(cmp_buf, cmp_size, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> free(cmp_buf);</div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> }</div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> {</div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> fwrite(parity_data, shard, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> }</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> </div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <span class="comment">/* Record parity offset in descriptor */</span></div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a> pentry;</div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> pentry.<a class="code hl_variable" href="structStripeParityBlockEntry.html#a4222801a62acbce61990ee79faf26050">offset</a> = parity_offset;</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> memcpy(p, &amp;pentry, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>)); p += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> </div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="comment">/* Add index entry */</span></div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> ie = {.blockType = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a>, .dataType = <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a>, .offset = parity_offset};</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> utarray_push_back(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, &amp;ie);</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a63616c8450e9e1853e0645714fe310cb">dirty_index_block</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> </div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="comment">/* Update next_block_position */</span></div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> uint64_t total = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>) + parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>;</div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a939b702f75e80062bc635add4c3ab142">next_block_position</a> = (parity_offset + total + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> </div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> <span class="comment">/* Reset parity buffer */</span></div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> memset(parity_data, 0, shard);</div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> }</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> </div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="comment">/* Store the completed stripe descriptor */</span></div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 0; i &lt; desc_data_size; i++)</div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> utarray_push_back(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>, &amp;desc[i]);</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> </div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> free(desc);</div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> </div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="comment">/* Reset stripe slot tracking */</span></div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> <span class="keywordflow">for</span>(uint16_t k = 0; k &lt; <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>; k++)</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> {</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <span class="keywordtype">size_t</span> idx = (size_t)slot * <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + k;</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a>[idx] = 0;</div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a>[idx] = 0;</div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a>[idx] = 0;</div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> }</div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot] = 0;</div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span>}</div>
</div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span></div>
<div class="foldopen" id="foldopen00495" data-start="{" data-end="}">
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"><a class="line" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a"> 495</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx,</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keyword">const</span> uint64_t *offsets, <span class="keyword">const</span> uint32_t *sizes,</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> uint32_t block_count, uint8_t group_type,</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> uint16_t parity_data_type,</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> uint8_t **out_desc, <span class="keywordtype">size_t</span> *out_desc_len,</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> *out_group)</div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span>{</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> *out_desc = NULL;</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> *out_desc_len = 0;</div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> <span class="keywordflow">if</span>(block_count == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> </div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keyword">const</span> uint16_t M = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>;</div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> uint16_t actual_k = (uint16_t)(block_count &gt; (uint32_t)(255 - M) ? 255 - M : block_count);</div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> </div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> uint32_t shard_size = 0;</div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; actual_k; i++)</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keywordflow">if</span>(sizes[i] &gt; shard_size) shard_size = sizes[i];</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> </div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <a class="code hl_struct" href="structrs__context.html">rs_context</a> *rs = <a class="code hl_function" href="reed__solomon_8c.html#a68a7b13ef6443640abc2818a3bd7d5bf">rs_create</a>(actual_k, M);</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> <span class="keywordflow">if</span>(!rs) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> </div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> uint8_t **parity = (uint8_t **)calloc(M, <span class="keyword">sizeof</span>(uint8_t *));</div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keywordflow">if</span>(!parity) { <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> {</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> parity[m] = (uint8_t *)calloc(1, shard_size);</div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">if</span>(!parity[m]) { <span class="keywordflow">for</span>(uint16_t j = 0; j &lt; m; j++) free(parity[j]); free(parity); <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> }</div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> </div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> <span class="keywordtype">size_t</span> desc_size = <span class="keyword">sizeof</span>(uint16_t) + (<span class="keywordtype">size_t</span>)actual_k * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>) +</div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> (<span class="keywordtype">size_t</span>)M * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> uint8_t *desc = (uint8_t *)calloc(1, desc_size);</div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> <span class="keywordflow">if</span>(!desc) { <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++) free(parity[m]); free(parity); <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> </div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> uint8_t *dp = desc;</div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> memcpy(dp, &amp;actual_k, <span class="keyword">sizeof</span>(uint16_t)); dp += <span class="keyword">sizeof</span>(uint16_t);</div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> </div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> uint8_t *shard_buf = (uint8_t *)calloc(1, shard_size);</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <span class="keywordflow">if</span>(!shard_buf) { free(desc); <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++) free(parity[m]); free(parity); <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> </div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keywordflow">for</span>(uint16_t k = 0; k &lt; actual_k; k++)</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> {</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> memset(shard_buf, 0, shard_size);</div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)offsets[k], SEEK_SET);</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> uint32_t read_size = sizes[k] &gt; shard_size ? shard_size : sizes[k];</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> fread(shard_buf, read_size, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> </div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> uint64_t shard_crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(shard_buf, shard_size);</div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> </div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> <a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a> entry;</div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#a7aac714b3d98b543e792537fd7c8d3fc">offset</a> = offsets[k]; entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#a3351d43103f9f7fbd9f4486161a1656d">onDiskSize</a> = sizes[k]; entry.<a class="code hl_variable" href="structStripeDataBlockEntry.html#af85494afc772fe1469927c826e24a1b2">shardCrc64</a> = shard_crc;</div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> memcpy(dp, &amp;entry, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>)); dp += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>);</div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> </div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> {</div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> uint8_t coeff = <a class="code hl_function" href="reed__solomon_8c.html#ada549b6a6028807b96d975bba70bea2d">rs_get_coefficient</a>(rs, m, k);</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <a class="code hl_function" href="reed__solomon_8c.html#ab02dd67e8f4b96de007048f30649adb1">rs_encode_incremental</a>(coeff, shard_buf, parity[m], shard_size);</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> }</div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> }</div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> free(shard_buf);</div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> </div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> uint64_t alignment_mask = (1ULL &lt;&lt; ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a04c5fb367458a6e9dd0a50b39f6edec2">user_data_ddt_header</a>.<a class="code hl_variable" href="structDdtHeader2.html#aa67b097c3a20f926ede495d27152f1c0">blockAlignmentShift</a>) - 1;</div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> {</div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> ph;</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> memset(&amp;ph, 0, <span class="keyword">sizeof</span>(ph));</div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a3b03f118fb2dc3dcef3f87a82238e358">identifier</a> = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a>; ph.<a class="code hl_variable" href="structBlockHeader.html#ac31ad48f3362a43175c94ec2e30662ad">type</a> = parity_data_type;</div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> ph.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>;</div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a> = shard_size; ph.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = shard_size;</div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> ph.<a class="code hl_variable" href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">crc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(parity[m], shard_size); ph.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = ph.<a class="code hl_variable" href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">crc64</a>;</div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> </div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> uint8_t *write_data = parity[m];</div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> uint32_t write_size = shard_size;</div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> uint8_t *cmp_buf = NULL;</div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> uint8_t lzma_props_buf[<a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>] = {0};</div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> <span class="keywordtype">bool</span> used_lzma = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> </div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="comment">/* Try compression */</span></div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a130daf19dbed426f1c4c6f82691bc054">compression_enabled</a>)</div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> {</div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> cmp_buf = (uint8_t *)malloc((<span class="keywordtype">size_t</span>)shard_size * 2);</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="keywordflow">if</span>(cmp_buf)</div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> {</div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ad027cde303f65d3ccc5b18a879692782">use_zstd</a>)</div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> {</div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <span class="keywordtype">size_t</span> cmp_size = <a class="code hl_function" href="decls_8h.html#a3950b73c924a7096bb2313e0858a315a">aaruf_zstd_encode_buffer</a>(cmp_buf, (<span class="keywordtype">size_t</span>)shard_size * 2,</div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> parity[m], shard_size,</div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9f694f685458e2142e116da91727de38">zstd_level</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#abd11e50d05e8f007bf084a586bad0fe9">num_threads</a>);</div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> <span class="keywordflow">if</span>(cmp_size &gt; 0 &amp;&amp; cmp_size &lt; shard_size)</div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> {</div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> ph.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a>;</div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = (uint32_t)cmp_size;</div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(cmp_buf, (uint32_t)cmp_size);</div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9cf4d3d7117a279de4c178eb7af217d6">has_zstd_blocks</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> write_data = cmp_buf;</div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> write_size = (uint32_t)cmp_size;</div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> }</div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> <span class="keywordflow">else</span> { free(cmp_buf); cmp_buf = NULL; }</div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> }</div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> {</div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <span class="keywordtype">size_t</span> dst_size = (size_t)shard_size * 2;</div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <span class="keywordtype">size_t</span> props_size = <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <a class="code hl_function" href="decls_8h.html#a0e69fad529047d6fe9440b1fc66c3f85">aaruf_lzma_encode_buffer</a>(cmp_buf, &amp;dst_size, parity[m], shard_size,</div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> lzma_props_buf, &amp;props_size, 9,</div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#adc67f6a6ef1602648bb064d47eb1fe88">lzma_dict_size</a>, 4, 0, 2, 273, <a class="code hl_define" href="internal_8h.html#a96247194f6c1e4090020e2a3691f8c9d">LZMA_THREADS</a>(ctx));</div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="keywordflow">if</span>(dst_size + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a> &lt; shard_size)</div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> {</div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> ph.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a>;</div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> = (uint32_t)(dst_size + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> ph.<a class="code hl_variable" href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">cmpCrc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(cmp_buf, (uint32_t)dst_size);</div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> write_data = cmp_buf;</div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> write_size = (uint32_t)dst_size;</div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> used_lzma = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> }</div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="keywordflow">else</span> { free(cmp_buf); cmp_buf = NULL; }</div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> }</div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> }</div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> }</div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> </div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> uint64_t po = ((uint64_t)<a class="code hl_function" href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)po, SEEK_SET);</div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> fwrite(&amp;ph, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="keywordflow">if</span>(used_lzma) fwrite(lzma_props_buf, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> fwrite(write_data, write_size, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> free(cmp_buf);</div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> </div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> <a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a> pe; pe.<a class="code hl_variable" href="structStripeParityBlockEntry.html#a4222801a62acbce61990ee79faf26050">offset</a> = po;</div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> memcpy(dp, &amp;pe, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>)); dp += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> </div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> ie = {.blockType = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a>, .dataType = parity_data_type, .offset = po};</div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> utarray_push_back(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, &amp;ie);</div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a63616c8450e9e1853e0645714fe310cb">dirty_index_block</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> free(parity[m]);</div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> }</div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> free(parity); <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>(rs);</div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> </div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> memset(out_group, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>));</div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#a6093f8c41fb1aa55c8367e2a92fe9f7f">groupType</a> = group_type; out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#a46b938eb0fea65843e741c2cc240d14b">K</a> = actual_k; out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a> = M;</div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#a2a457b42f8562c872b0b7e0f1b054ef5">shardSize</a> = shard_size; out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a> = 1; out_group-&gt;<a class="code hl_variable" href="structStripeGroupDescriptor.html#a747366878bf9d2d68b37fddc30346546">interleaveDepth</a> = 1;</div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> *out_desc = desc; *out_desc_len = desc_size;</div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span>}</div>
</div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span></div>
<div class="foldopen" id="foldopen00642" data-start="{" data-end="}">
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"><a class="line" href="erasure_8c.html#a1222930aded868b0b0c4eeed13c237e2"> 642</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#a1222930aded868b0b0c4eeed13c237e2">ec_collect_blocks_by_type</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, uint32_t block_type,</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> uint64_t **out_offsets, uint32_t **out_sizes, uint32_t *out_count)</div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span>{</div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> *out_offsets = NULL; *out_sizes = NULL; *out_count = 0;</div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> uint32_t n = (uint32_t)utarray_len(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>);</div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> <span class="keywordflow">if</span>(n == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> </div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> uint32_t count = 0;</div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; n; i++)</div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> {</div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *ie = (<a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *)utarray_eltptr(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, i);</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == block_type) count++;</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> }</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> <span class="keywordflow">if</span>(count == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> </div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> uint64_t *offsets = (uint64_t *)malloc(count * <span class="keyword">sizeof</span>(uint64_t));</div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> uint32_t *sizes = (uint32_t *)malloc(count * <span class="keyword">sizeof</span>(uint32_t));</div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> <span class="keywordflow">if</span>(!offsets || !sizes) { free(offsets); free(sizes); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> </div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</span> uint32_t idx = 0;</div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; n &amp;&amp; idx &lt; count; i++)</div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> {</div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *ie = (<a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *)utarray_eltptr(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, i);</div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> != block_type) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> offsets[idx] = ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>;</div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>, SEEK_SET);</div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> <span class="keywordflow">if</span>(block_type == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf">DeDuplicationTable2</a> || block_type == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb">DeDuplicationTableSecondary</a>)</div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> {</div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> <a class="code hl_struct" href="structDdtHeader2.html">DdtHeader2</a> ddt_hdr;</div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> <span class="keywordflow">if</span>(fread(&amp;ddt_hdr, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structDdtHeader2.html">DdtHeader2</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) == 1)</div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> sizes[idx] = (uint32_t)(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structDdtHeader2.html">DdtHeader2</a>) + ddt_hdr.<a class="code hl_variable" href="structDdtHeader2.html#aee50fc92a9151bd352808b28bccd5045">cmpLength</a>);</div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> <span class="keywordflow">else</span> sizes[idx] = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structDdtHeader2.html">DdtHeader2</a>);</div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> }</div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> {</div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> blk_hdr;</div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="keywordflow">if</span>(fread(&amp;blk_hdr, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) == 1)</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> sizes[idx] = (uint32_t)(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>) + blk_hdr.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>);</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> <span class="keywordflow">else</span> sizes[idx] = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>);</div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> }</div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> idx++;</div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> }</div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> *out_offsets = offsets; *out_sizes = sizes; *out_count = idx;</div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span>}</div>
</div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span></div>
<div class="foldopen" id="foldopen00690" data-start="{" data-end="}">
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#a38a12ac5d36e23b28d2f110906b14126"> 690</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#a38a12ac5d36e23b28d2f110906b14126">ec_finalize</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx)</div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span>{</div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> <span class="keywordflow">if</span>(!ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">ec_enabled</a>) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> </div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> <span class="keyword">const</span> uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>;</div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> <span class="keyword">const</span> uint16_t M = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>;</div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> </div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> <span class="comment">/* --- Group 0: Data blocks (flush partial stripes) --- */</span></div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <span class="keywordflow">for</span>(uint16_t slot = 0; slot &lt; <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>; slot++)</div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>[slot] &gt; 0)</div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> <a class="code hl_function" href="erasure_8c.html#aa258c90d05ad57fc4c378679e5187e48">ec_flush_data_stripe</a>(ctx, slot);</div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> </div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> uint32_t data_stripe_count = 0;</div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> {</div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> <span class="keywordtype">size_t</span> total_bytes = utarray_len(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>);</div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> uint8_t *base = (uint8_t *)utarray_front(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>);</div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> <span class="keywordtype">size_t</span> pos = 0;</div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> <span class="keywordflow">while</span>(base &amp;&amp; pos + <span class="keyword">sizeof</span>(uint16_t) &lt;= total_bytes)</div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> {</div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> uint16_t ak;</div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> memcpy(&amp;ak, base + pos, <span class="keyword">sizeof</span>(uint16_t));</div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> pos += <span class="keyword">sizeof</span>(uint16_t) + (<span class="keywordtype">size_t</span>)ak * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>) + (<span class="keywordtype">size_t</span>)M * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> data_stripe_count++;</div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> }</div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> }</div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> </div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> data_group;</div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> memset(&amp;data_group, 0, <span class="keyword">sizeof</span>(data_group));</div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a6093f8c41fb1aa55c8367e2a92fe9f7f">groupType</a> = <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eacca27cc435d2d572b6d740594da18db9">kECGroupData</a>; data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a46b938eb0fea65843e741c2cc240d14b">K</a> = <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>; data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a> = M;</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a2a457b42f8562c872b0b7e0f1b054ef5">shardSize</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a>; data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a> = data_stripe_count;</div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> data_group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a747366878bf9d2d68b37fddc30346546">interleaveDepth</a> = <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>;</div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> <span class="keywordtype">size_t</span> data_stripe_data_len = utarray_len(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>);</div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> </div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> <span class="comment">/* --- Group 1: DDT secondary --- */</span></div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span> uint8_t *ddt_sec_desc = NULL; <span class="keywordtype">size_t</span> ddt_sec_desc_len = 0;</div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> ddt_sec_group; memset(&amp;ddt_sec_group, 0, <span class="keyword">sizeof</span>(ddt_sec_group));</div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"> 726</span> {</div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> uint64_t *off; uint32_t *sz; uint32_t cnt;</div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> <a class="code hl_function" href="erasure_8c.html#a1222930aded868b0b0c4eeed13c237e2">ec_collect_blocks_by_type</a>(ctx, <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb">DeDuplicationTableSecondary</a>, &amp;off, &amp;sz, &amp;cnt);</div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> <span class="keywordflow">if</span>(cnt &gt; 0) { <a class="code hl_function" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a>(ctx, off, sz, cnt, <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eaf5acb726ee779a2e93b636a0bee14972">kECGroupDdtSecondary</a>, <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a0415d7a4a6fe1e616eecc1a0465c8dd4">kDataTypeErasureParityDdt</a>, &amp;ddt_sec_desc, &amp;ddt_sec_desc_len, &amp;ddt_sec_group); free(off); free(sz); }</div>
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> }</div>
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> </div>
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> <span class="comment">/* --- Group 2: DDT primary --- */</span></div>
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span> uint8_t *ddt_pri_desc = NULL; <span class="keywordtype">size_t</span> ddt_pri_desc_len = 0;</div>
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> ddt_pri_group; memset(&amp;ddt_pri_group, 0, <span class="keyword">sizeof</span>(ddt_pri_group));</div>
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span> {</div>
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</span> uint64_t *off; uint32_t *sz; uint32_t cnt;</div>
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno"> 737</span> <a class="code hl_function" href="erasure_8c.html#a1222930aded868b0b0c4eeed13c237e2">ec_collect_blocks_by_type</a>(ctx, <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf">DeDuplicationTable2</a>, &amp;off, &amp;sz, &amp;cnt);</div>
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno"> 738</span> <span class="keywordflow">if</span>(cnt &gt; 0) { <a class="code hl_function" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a>(ctx, off, sz, cnt, <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eaba5fd72984872e2da8f9adcee83c592a">kECGroupDdtPrimary</a>, <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a08a4aa580854c87d64264258bb690bc3">kDataTypeErasureParityDdtPrimary</a>, &amp;ddt_pri_desc, &amp;ddt_pri_desc_len, &amp;ddt_pri_group); free(off); free(sz); }</div>
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno"> 739</span> }</div>
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno"> 740</span> </div>
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno"> 741</span> <span class="comment">/* --- Group 3: Metadata (non-DDT, non-data, non-index, non-parity) --- */</span></div>
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno"> 742</span> uint8_t *meta_desc = NULL; <span class="keywordtype">size_t</span> meta_desc_len = 0;</div>
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno"> 743</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> meta_group; memset(&amp;meta_group, 0, <span class="keyword">sizeof</span>(meta_group));</div>
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"> 744</span> {</div>
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"> 745</span> uint32_t n = (uint32_t)utarray_len(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>);</div>
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno"> 746</span> uint32_t count = 0;</div>
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno"> 747</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; n; i++)</div>
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno"> 748</span> {</div>
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno"> 749</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *ie = (<a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *)utarray_eltptr(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, i);</div>
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno"> 750</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a> &amp;&amp; (ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> == <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6ace86d5a01f2f20eab66f36b8af9676c2">kDataTypeUserData</a> ||</div>
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno"> 751</span> (ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> &gt;= <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a> &amp;&amp; ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> &lt;= <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a5069a00563fe1a94724c8f15f463419d">kDataTypeErasureParityIndex</a>))) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno"> 752</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf">DeDuplicationTable2</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb">DeDuplicationTableSecondary</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ac9f1e20a51c73f238aa322e180c42bd4">DeDuplicationTable</a>) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno"> 753</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ab8d63dc690b2ba82f066fdc31ab5adad">IndexBlock</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a6ee3c4c583df36e3dfe796593c1e9439">IndexBlock2</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a318acaf230a8ad091ef405caf7e4f411">IndexBlock3</a>) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno"> 754</span> count++;</div>
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno"> 755</span> }</div>
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno"> 756</span> <span class="keywordflow">if</span>(count &gt; 0 &amp;&amp; count &lt;= (uint32_t)(255 - M))</div>
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno"> 757</span> {</div>
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno"> 758</span> uint64_t *off = (uint64_t *)malloc(count * <span class="keyword">sizeof</span>(uint64_t));</div>
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno"> 759</span> uint32_t *sz = (uint32_t *)malloc(count * <span class="keyword">sizeof</span>(uint32_t));</div>
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno"> 760</span> <span class="keywordflow">if</span>(off &amp;&amp; sz)</div>
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno"> 761</span> {</div>
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno"> 762</span> uint32_t idx = 0;</div>
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno"> 763</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; n &amp;&amp; idx &lt; count; i++)</div>
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno"> 764</span> {</div>
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno"> 765</span> <a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *ie = (<a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a> *)utarray_eltptr(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">index_entries</a>, i);</div>
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno"> 766</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a> &amp;&amp; (ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> == <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6ace86d5a01f2f20eab66f36b8af9676c2">kDataTypeUserData</a> ||</div>
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno"> 767</span> (ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> &gt;= <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a> &amp;&amp; ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">dataType</a> &lt;= <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a5069a00563fe1a94724c8f15f463419d">kDataTypeErasureParityIndex</a>))) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno"> 768</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf">DeDuplicationTable2</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb">DeDuplicationTableSecondary</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ac9f1e20a51c73f238aa322e180c42bd4">DeDuplicationTable</a>) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno"> 769</span> <span class="keywordflow">if</span>(ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ab8d63dc690b2ba82f066fdc31ab5adad">IndexBlock</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a6ee3c4c583df36e3dfe796593c1e9439">IndexBlock2</a> || ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a318acaf230a8ad091ef405caf7e4f411">IndexBlock3</a>) <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno"> 770</span> off[idx] = ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>;</div>
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno"> 771</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)ie-&gt;<a class="code hl_variable" href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a>, SEEK_SET);</div>
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno"> 772</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> bh; <span class="keywordflow">if</span>(fread(&amp;bh, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) == 1)</div>
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno"> 773</span> sz[idx] = (uint32_t)(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>) + bh.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>); <span class="keywordflow">else</span> sz[idx] = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>);</div>
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno"> 774</span> idx++;</div>
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno"> 775</span> }</div>
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno"> 776</span> <a class="code hl_function" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a>(ctx, off, sz, idx, <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03ea5fb086c67288ffec790901b1026b3e0f">kECGroupMetadata</a>, <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6aa85ba79bd52a96a4ca058718351b06f5">kDataTypeErasureParityMeta</a>, &amp;meta_desc, &amp;meta_desc_len, &amp;meta_group);</div>
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno"> 777</span> }</div>
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno"> 778</span> free(off); free(sz);</div>
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno"> 779</span> }</div>
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno"> 780</span> }</div>
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno"> 781</span> </div>
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno"> 782</span> <span class="comment">/* --- Group 4: Index (K=1, M replicas) --- */</span></div>
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno"> 783</span> uint8_t *idx_desc = NULL; <span class="keywordtype">size_t</span> idx_desc_len = 0;</div>
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno"> 784</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> idx_group; memset(&amp;idx_group, 0, <span class="keyword">sizeof</span>(idx_group));</div>
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno"> 785</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">header</a>.<a class="code hl_variable" href="structAaruHeaderV2.html#a4ec4b1d593f5a0af19f6d7b8eaeada40">indexOffset</a> &gt; 0)</div>
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno"> 786</span> {</div>
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno"> 787</span> uint64_t io = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">header</a>.<a class="code hl_variable" href="structAaruHeaderV2.html#a4ec4b1d593f5a0af19f6d7b8eaeada40">indexOffset</a>;</div>
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno"> 788</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)io, SEEK_SET);</div>
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno"> 789</span> <a class="code hl_struct" href="structIndexHeader3.html">IndexHeader3</a> ih;</div>
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno"> 790</span> <span class="keywordflow">if</span>(fread(&amp;ih, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structIndexHeader3.html">IndexHeader3</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) == 1)</div>
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"> 791</span> {</div>
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"> 792</span> uint32_t isz = (uint32_t)(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structIndexHeader3.html">IndexHeader3</a>) + ih.<a class="code hl_variable" href="structIndexHeader3.html#af05fe8e08e929aa0eab6b74638f22b74">entries</a> * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structIndexEntry.html">IndexEntry</a>));</div>
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno"> 793</span> <a class="code hl_function" href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a>(ctx, &amp;io, &amp;isz, 1, <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03ea85486aa10ff27c8196e2f063b097679e">kECGroupIndex</a>, <a class="code hl_enumvalue" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a5069a00563fe1a94724c8f15f463419d">kDataTypeErasureParityIndex</a>, &amp;idx_desc, &amp;idx_desc_len, &amp;idx_group);</div>
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno"> 794</span> }</div>
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno"> 795</span> }</div>
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"> 796</span> </div>
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno"> 797</span> <span class="comment">/* --- Build ECMB with all groups --- */</span></div>
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno"> 798</span> uint8_t group_count = 1; <span class="comment">/* data always present */</span></div>
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno"> 799</span> <span class="keywordflow">if</span>(ddt_sec_desc) group_count++;</div>
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno"> 800</span> <span class="keywordflow">if</span>(ddt_pri_desc) group_count++;</div>
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno"> 801</span> <span class="keywordflow">if</span>(meta_desc) group_count++;</div>
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno"> 802</span> <span class="keywordflow">if</span>(idx_desc) group_count++;</div>
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"> 803</span> </div>
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"> 804</span> <span class="keywordtype">size_t</span> payload_len = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>) + data_stripe_data_len;</div>
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno"> 805</span> <span class="keywordflow">if</span>(ddt_sec_desc) payload_len += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>) + ddt_sec_desc_len;</div>
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno"> 806</span> <span class="keywordflow">if</span>(ddt_pri_desc) payload_len += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>) + ddt_pri_desc_len;</div>
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno"> 807</span> <span class="keywordflow">if</span>(meta_desc) payload_len += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>) + meta_desc_len;</div>
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno"> 808</span> <span class="keywordflow">if</span>(idx_desc) payload_len += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>) + idx_desc_len;</div>
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"> 809</span> </div>
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"> 810</span> uint8_t *payload = (uint8_t *)malloc(payload_len);</div>
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"> 811</span> <span class="keywordflow">if</span>(!payload) { free(ddt_sec_desc); free(ddt_pri_desc); free(meta_desc); free(idx_desc); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno"> 812</span> </div>
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno"> 813</span> uint8_t *wp = payload;</div>
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno"> 814</span> <span class="comment">/* Data group */</span></div>
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno"> 815</span> memcpy(wp, &amp;data_group, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>)); wp += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>);</div>
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno"> 816</span> <span class="keywordflow">if</span>(data_stripe_data_len &gt; 0) { uint8_t *b = (uint8_t *)utarray_front(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>); <span class="keywordflow">if</span>(b) { memcpy(wp, b, data_stripe_data_len); wp += data_stripe_data_len; } }</div>
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno"> 817</span> </div>
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno"> 818</span><span class="preprocessor">#define WRITE_GROUP(desc, desc_len, grp) \</span></div>
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno"> 819</span><span class="preprocessor"> if(desc) { memcpy(wp, &amp;(grp), sizeof(StripeGroupDescriptor)); wp += sizeof(StripeGroupDescriptor); \</span></div>
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno"> 820</span><span class="preprocessor"> memcpy(wp, (desc), (desc_len)); wp += (desc_len); }</span></div>
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"> 821</span> </div>
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"> 822</span> <a class="code hl_define" href="erasure_8c.html#a415f83d4f5fbce86adcec87aa368313c">WRITE_GROUP</a>(ddt_sec_desc, ddt_sec_desc_len, ddt_sec_group)</div>
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"> 823</span> <a class="code hl_define" href="erasure_8c.html#a415f83d4f5fbce86adcec87aa368313c">WRITE_GROUP</a>(ddt_pri_desc, ddt_pri_desc_len, ddt_pri_group)</div>
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno"> 824</span> <a class="code hl_define" href="erasure_8c.html#a415f83d4f5fbce86adcec87aa368313c">WRITE_GROUP</a>(meta_desc, meta_desc_len, meta_group)</div>
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno"> 825</span> <a class="code hl_define" href="erasure_8c.html#a415f83d4f5fbce86adcec87aa368313c">WRITE_GROUP</a>(idx_desc, idx_desc_len, idx_group)</div>
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"> 826</span><span class="preprocessor">#undef WRITE_GROUP</span></div>
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"> 827</span> </div>
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno"> 828</span> free(ddt_sec_desc); free(ddt_pri_desc); free(meta_desc); free(idx_desc);</div>
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno"> 829</span> </div>
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno"> 830</span> uint64_t payload_crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(payload, (uint32_t)payload_len);</div>
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"> 831</span> </div>
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"> 832</span> <a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a> ecmb;</div>
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno"> 833</span> memset(&amp;ecmb, 0, <span class="keyword">sizeof</span>(ecmb));</div>
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno"> 834</span> ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ac1cce17abac0be6beccb121d7a3b24b2">identifier</a> = <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3af9f5bd022e035b2a787279913a85cf19">ErasureCodingMapBlock</a>; ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a174d1be87a00bda3012715de76423ec4">algorithm</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a25448606ea0870a817f4a2b6c94f7698">ec_algorithm</a>;</div>
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno"> 835</span> ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#accae80e978eeccc7c026eb5ade721aae">stripeGroupCount</a> = group_count; ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aaf860b67807c5bf871e52ae617a076ae">compression</a> = <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>;</div>
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"> 836</span> ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a> = payload_len; ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a> = payload_len;</div>
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"> 837</span> ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aa883d1e565b1856a7a16b2fcf8ee8b7d">crc64</a> = payload_crc; ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aa686c5c90093d0ba86657c1f15f64a2d">cmpCrc64</a> = payload_crc;</div>
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno"> 838</span> </div>
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno"> 839</span> uint64_t alignment_mask = (1ULL &lt;&lt; ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a04c5fb367458a6e9dd0a50b39f6edec2">user_data_ddt_header</a>.<a class="code hl_variable" href="structDdtHeader2.html#aa67b097c3a20f926ede495d27152f1c0">blockAlignmentShift</a>) - 1;</div>
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"> 840</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"> 841</span> uint64_t ecmb_offset = ((uint64_t)<a class="code hl_function" href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"> 842</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)ecmb_offset, SEEK_SET);</div>
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno"> 843</span> fwrite(&amp;ecmb, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno"> 844</span> fwrite(payload, payload_len, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno"> 845</span> uint64_t ecmb_total = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a>) + payload_len;</div>
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"> 846</span> </div>
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"> 847</span> <span class="comment">/* Duplicate ECMB */</span></div>
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno"> 848</span> uint64_t ecmb2_offset = (ecmb_offset + ecmb_total + alignment_mask) &amp; ~alignment_mask;</div>
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno"> 849</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)ecmb2_offset, SEEK_SET);</div>
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno"> 850</span> fwrite(&amp;ecmb, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"> 851</span> fwrite(payload, payload_len, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"> 852</span> free(payload);</div>
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno"> 853</span> </div>
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno"> 854</span> <span class="comment">/* Recovery footer */</span></div>
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno"> 855</span> <a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a> footer;</div>
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"> 856</span> memset(&amp;footer, 0, <span class="keyword">sizeof</span>(footer));</div>
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"> 857</span> footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a67e4601f7be9a5f7e84cb3adfb98e68a">ecmbOffset</a> = ecmb_offset; footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#ad3f4ad3842317379eea5ad1bd3335482">ecmbLength</a> = ecmb_total;</div>
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno"> 858</span> footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a2a0e7425f369422c197cda6b4ff56033">headerCrc64</a> = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>((<span class="keyword">const</span> uint8_t *)&amp;ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">header</a>, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruHeaderV2.html">AaruHeaderV2</a>));</div>
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno"> 859</span> memcpy(&amp;footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#afd53d818d8d4f4c23e4483bfea1701f5">backupHeader</a>, &amp;ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">header</a>, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruHeaderV2.html">AaruHeaderV2</a>));</div>
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno"> 860</span> footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a8d65cec53b91b52d2bafb7e76eef818a">footerMagic</a> = <a class="code hl_define" href="consts_8h.html#a1d7434dbf5927484a6d767b8a27c3cd4">AARU_RECOVERY_FOOTER_MAGIC</a>;</div>
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno"> 861</span> </div>
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno"> 862</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno"> 863</span> fwrite(&amp;footer, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno"> 864</span> </div>
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno"> 865</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Wrote ECMB at offset %&quot;</span> PRIu64 <span class="stringliteral">&quot; (%u groups, %&quot;</span> PRIu64 <span class="stringliteral">&quot; bytes), footer at EOF&quot;</span>,</div>
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno"> 866</span> ecmb_offset, group_count, ecmb_total);</div>
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno"> 867</span>}</div>
</div>
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno"> 868</span></div>
<div class="foldopen" id="foldopen00876" data-start="{" data-end="}">
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#ae5fe558b49013df6e932278061a2ab53"> 876</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#ae5fe558b49013df6e932278061a2ab53">ec_free</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx)</div>
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno"> 877</span>{</div>
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno"> 878</span> <span class="keywordflow">if</span>(!ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">ec_enabled</a>) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno"> 879</span> </div>
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"> 880</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a>)</div>
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno"> 881</span> {</div>
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno"> 882</span> <a class="code hl_function" href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a>((<a class="code hl_struct" href="structrs__context.html">rs_context</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a>);</div>
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno"> 883</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a> = NULL;</div>
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno"> 884</span> }</div>
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"> 885</span> </div>
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"> 886</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a>)</div>
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno"> 887</span> {</div>
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"> 888</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; (uint32_t)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a> * ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>; i++)</div>
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"> 889</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a>[i]);</div>
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno"> 890</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a>);</div>
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno"> 891</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">ec_data_parity</a> = NULL;</div>
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"> 892</span> }</div>
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno"> 893</span> </div>
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno"> 894</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a>); ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">ec_data_block_offsets</a> = NULL;</div>
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno"> 895</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a>); ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">ec_data_block_sizes</a> = NULL;</div>
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno"> 896</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a>); ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">ec_data_shard_crcs</a> = NULL;</div>
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno"> 897</span> free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a>); ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">ec_data_stripe_counts</a> = NULL;</div>
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno"> 898</span> </div>
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno"> 899</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>)</div>
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno"> 900</span> {</div>
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno"> 901</span> utarray_free(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a>);</div>
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"> 902</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">ec_data_stripes</a> = NULL;</div>
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"> 903</span> }</div>
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno"> 904</span> </div>
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno"> 905</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">ec_enabled</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno"> 906</span> </div>
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno"> 907</span> <span class="comment">/* Free read-path state */</span></div>
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno"> 908</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">ec_read_stripes</a>)</div>
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno"> 909</span> {</div>
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno"> 910</span> <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *stripes = (<a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">ec_read_stripes</a>;</div>
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno"> 911</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3e230f326ef10eae2a496ca4532c8143">ec_read_stripe_count</a>; i++)</div>
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno"> 912</span> {</div>
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno"> 913</span> free(stripes[i].data_entries);</div>
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno"> 914</span> free(stripes[i].parity_offsets);</div>
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno"> 915</span> }</div>
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno"> 916</span> free(stripes);</div>
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno"> 917</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">ec_read_stripes</a> = NULL;</div>
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno"> 918</span> }</div>
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno"> 919</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3e230f326ef10eae2a496ca4532c8143">ec_read_stripe_count</a> = 0;</div>
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno"> 920</span> </div>
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno"> 921</span> <span class="comment">/* Free block lookup hashmap */</span></div>
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno"> 922</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">ec_block_lookup</a>)</div>
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno"> 923</span> {</div>
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno"> 924</span> <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *root = (<a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">ec_block_lookup</a>;</div>
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno"> 925</span> <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *entry, *tmp;</div>
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"> 926</span> HASH_ITER(hh, root, entry, tmp)</div>
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno"> 927</span> {</div>
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno"> 928</span> HASH_DEL(root, entry);</div>
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno"> 929</span> free(entry);</div>
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno"> 930</span> }</div>
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno"> 931</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">ec_block_lookup</a> = NULL;</div>
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno"> 932</span> }</div>
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno"> 933</span> </div>
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno"> 934</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#af7b4e0a80f76581b0cb1440d9a689f0f">ec_recovery_available</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno"> 935</span>}</div>
</div>
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno"> 936</span> </div>
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno"> 937</span><span class="comment">/* =========================================================================</span></div>
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno"> 938</span><span class="comment"> * ECMB loading (read path)</span></div>
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno"> 939</span><span class="comment"> * ========================================================================= */</span></div>
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno"> 940</span> </div>
<div class="foldopen" id="foldopen00941" data-start="{" data-end="}">
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#a18f424702fcd85725ee26c1cf7e253db"> 941</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="erasure_8c.html#a18f424702fcd85725ee26c1cf7e253db">ec_load_ecmb</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx)</div>
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno"> 942</span>{</div>
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno"> 943</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Entering ec_load_ecmb(%p)&quot;</span>, (<span class="keywordtype">void</span> *)ctx);</div>
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"> 944</span> </div>
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno"> 945</span> <span class="comment">/* Read recovery footer from last 160 bytes of file */</span></div>
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno"> 946</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, 0, SEEK_END);</div>
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno"> 947</span> int64_t file_size = <a class="code hl_function" href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>);</div>
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno"> 948</span> <span class="keywordflow">if</span>(file_size &lt; (int64_t)<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a>))</div>
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno"> 949</span> {</div>
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno"> 950</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;File too small for recovery footer&quot;</span>);</div>
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno"> 951</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno"> 952</span> }</div>
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno"> 953</span> </div>
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno"> 954</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)(file_size - (int64_t)<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a>)), SEEK_SET);</div>
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno"> 955</span> </div>
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno"> 956</span> <a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a> footer;</div>
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno"> 957</span> <span class="keywordflow">if</span>(fread(&amp;footer, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno"> 958</span> {</div>
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno"> 959</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Cannot read recovery footer&quot;</span>);</div>
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno"> 960</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno"> 961</span> }</div>
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno"> 962</span> </div>
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno"> 963</span> <span class="keywordflow">if</span>(footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a8d65cec53b91b52d2bafb7e76eef818a">footerMagic</a> != <a class="code hl_define" href="consts_8h.html#a1d7434dbf5927484a6d767b8a27c3cd4">AARU_RECOVERY_FOOTER_MAGIC</a>)</div>
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno"> 964</span> {</div>
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno"> 965</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Recovery footer magic mismatch: 0x%016&quot;</span> PRIx64, footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a8d65cec53b91b52d2bafb7e76eef818a">footerMagic</a>);</div>
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno"> 966</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno"> 967</span> }</div>
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno"> 968</span> </div>
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno"> 969</span> <span class="comment">/* Read ECMB header */</span></div>
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno"> 970</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)footer.<a class="code hl_variable" href="structAaruRecoveryFooter.html#a67e4601f7be9a5f7e84cb3adfb98e68a">ecmbOffset</a>, SEEK_SET);</div>
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno"> 971</span> </div>
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno"> 972</span> <a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a> ecmb;</div>
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno"> 973</span> <span class="keywordflow">if</span>(fread(&amp;ecmb, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno"> 974</span> {</div>
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno"> 975</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;Cannot read ECMB header&quot;</span>);</div>
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno"> 976</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno"> 977</span> }</div>
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno"> 978</span> </div>
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno"> 979</span> <span class="keywordflow">if</span>(ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ac1cce17abac0be6beccb121d7a3b24b2">identifier</a> != <a class="code hl_enumvalue" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3af9f5bd022e035b2a787279913a85cf19">ErasureCodingMapBlock</a>)</div>
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno"> 980</span> {</div>
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno"> 981</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;ECMB identifier mismatch&quot;</span>);</div>
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno"> 982</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno"> 983</span> }</div>
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno"> 984</span> </div>
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno"> 985</span> <span class="comment">/* Read payload (uncompressed only for now) */</span></div>
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno"> 986</span> <span class="keywordflow">if</span>(ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a> == 0 || ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a> &gt; 256 * 1024 * 1024) <span class="keywordflow">return</span>; <span class="comment">/* sanity limit */</span></div>
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno"> 987</span> </div>
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno"> 988</span> uint8_t *payload = (uint8_t *)malloc((<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a>);</div>
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno"> 989</span> <span class="keywordflow">if</span>(!payload) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno"> 990</span> </div>
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno"> 991</span> <span class="keywordflow">if</span>(ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aaf860b67807c5bf871e52ae617a076ae">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>)</div>
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno"> 992</span> {</div>
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno"> 993</span> <span class="keywordflow">if</span>(fread(payload, (<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno"> 994</span> {</div>
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno"> 995</span> free(payload);</div>
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno"> 996</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno"> 997</span> }</div>
<div class="line"><a id="l00998" name="l00998"></a><span class="lineno"> 998</span> }</div>
<div class="line"><a id="l00999" name="l00999"></a><span class="lineno"> 999</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span> {</div>
<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span> <span class="comment">/* Compressed ECMB payload — read compressed, decompress */</span></div>
<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span> uint8_t *cmp = (uint8_t *)malloc((<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a>);</div>
<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span> <span class="keywordflow">if</span>(!cmp) { free(payload); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span> <span class="keywordflow">if</span>(fread(cmp, (<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1) { free(cmp); free(payload); <span class="keywordflow">return</span>; }</div>
<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span> </div>
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span> <span class="keywordflow">if</span>(ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aaf860b67807c5bf871e52ae617a076ae">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a>)</div>
<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span> {</div>
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> <span class="keywordtype">size_t</span> out_size = (size_t)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a>;</div>
<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span> <span class="keywordtype">size_t</span> lzma_src_size = (size_t)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a> - <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span> <a class="code hl_function" href="decls_8h.html#a12f3cbc43c2f57a11fbba32a71ba2704">aaruf_lzma_decode_buffer</a>(payload, &amp;out_size, cmp + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>,</div>
<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span> &amp;lzma_src_size, cmp, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span> }</div>
<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aaf860b67807c5bf871e52ae617a076ae">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a>)</div>
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span> {</div>
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span> <a class="code hl_function" href="decls_8h.html#ac0f8004dbea44979bf8b58c3e3a1a6ae">aaruf_zstd_decode_buffer</a>(payload, (<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a>, cmp, (<span class="keywordtype">size_t</span>)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">cmpLength</a>);</div>
<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span> }</div>
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span> free(cmp);</div>
<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span> }</div>
<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span> </div>
<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> <span class="comment">/* Verify CRC64 */</span></div>
<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span> uint64_t computed_crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(payload, (uint32_t)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a>);</div>
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span> <span class="keywordflow">if</span>(computed_crc != ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#aa883d1e565b1856a7a16b2fcf8ee8b7d">crc64</a>)</div>
<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span> {</div>
<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;ECMB payload CRC64 mismatch&quot;</span>);</div>
<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span> free(payload);</div>
<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span> }</div>
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span> </div>
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a25448606ea0870a817f4a2b6c94f7698">ec_algorithm</a> = ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#a174d1be87a00bda3012715de76423ec4">algorithm</a>;</div>
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span> </div>
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span> <span class="comment">/* Parse all stripe groups */</span></div>
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span> uint8_t *p = payload;</div>
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span> <span class="keywordtype">size_t</span> remaining = (size_t)ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">length</a>;</div>
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span> </div>
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span> <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *lookup_root = NULL;</div>
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span> <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *data_stripes = NULL;</div>
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span> uint32_t data_stripe_count = 0;</div>
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span> </div>
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span> <span class="keywordflow">for</span>(uint8_t g = 0; g &lt; ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#accae80e978eeccc7c026eb5ade721aae">stripeGroupCount</a> &amp;&amp; remaining &gt;= <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>); g++)</div>
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span> {</div>
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span> <a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a> group;</div>
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span> memcpy(&amp;group, p, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>));</div>
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span> p += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>);</div>
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span> remaining -= <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a>);</div>
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span> </div>
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span> <span class="comment">/* Parse stripes for this group */</span></div>
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span> <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *grp_stripes = NULL;</div>
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span> <span class="keywordflow">if</span>(group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a> &gt; 0)</div>
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span> {</div>
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span> grp_stripes = (<a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *)calloc(group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a>, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a>));</div>
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span> <span class="keywordflow">if</span>(!grp_stripes) <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span> }</div>
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span> </div>
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span> <span class="keywordflow">for</span>(uint32_t s = 0; s &lt; group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a>; s++)</div>
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span> {</div>
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span> <span class="keywordflow">if</span>(remaining &lt; <span class="keyword">sizeof</span>(uint16_t)) <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span> uint16_t ak;</div>
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span> memcpy(&amp;ak, p, <span class="keyword">sizeof</span>(uint16_t)); p += <span class="keyword">sizeof</span>(uint16_t); remaining -= <span class="keyword">sizeof</span>(uint16_t);</div>
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span> <span class="keywordflow">if</span>(grp_stripes) grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f">actual_k</a> = ak;</div>
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span> </div>
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span> <span class="keywordtype">size_t</span> data_bytes = (size_t)ak * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a>);</div>
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span> <span class="keywordtype">size_t</span> parity_bytes = (size_t)group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a> * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> <span class="keywordflow">if</span>(remaining &lt; data_bytes + parity_bytes) <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span> </div>
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span> <span class="keywordflow">if</span>(grp_stripes)</div>
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span> {</div>
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span> grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">data_entries</a> = (<a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a> *)malloc(data_bytes);</div>
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span> <span class="keywordflow">if</span>(grp_stripes[s].data_entries)</div>
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span> memcpy(grp_stripes[s].data_entries, p, data_bytes);</div>
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span> </div>
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span> grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f">parity_offsets</a> = (uint64_t *)malloc((<span class="keywordtype">size_t</span>)group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a> * <span class="keyword">sizeof</span>(uint64_t));</div>
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> }</div>
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span> </div>
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> p += data_bytes; remaining -= data_bytes;</div>
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span> </div>
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a>; m++)</div>
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span> {</div>
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span> <a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a> pe;</div>
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span> memcpy(&amp;pe, p, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>));</div>
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span> p += <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>); remaining -= <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a>);</div>
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span> <span class="keywordflow">if</span>(grp_stripes &amp;&amp; grp_stripes[s].parity_offsets)</div>
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span> grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f">parity_offsets</a>[m] = pe.<a class="code hl_variable" href="structStripeParityBlockEntry.html#a4222801a62acbce61990ee79faf26050">offset</a>;</div>
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span> }</div>
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span> </div>
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> <span class="comment">/* Build lookup hashmap for data group blocks */</span></div>
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span> <span class="keywordflow">if</span>(group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a6093f8c41fb1aa55c8367e2a92fe9f7f">groupType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eacca27cc435d2d572b6d740594da18db9">kECGroupData</a> &amp;&amp; grp_stripes &amp;&amp; grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">data_entries</a>)</div>
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> {</div>
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span> <span class="keywordflow">for</span>(uint16_t k = 0; k &lt; ak; k++)</div>
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span> {</div>
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span> <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *le = (<a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *)calloc(1, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a>));</div>
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span> <span class="keywordflow">if</span>(!le) <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span> le-&gt;<a class="code hl_variable" href="structEcBlockLookupEntry.html#a13a8928f4f9cc3d0d7a30b1d0530c016">block_offset</a> = grp_stripes[s].<a class="code hl_variable" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">data_entries</a>[k].<a class="code hl_variable" href="structStripeDataBlockEntry.html#a7aac714b3d98b543e792537fd7c8d3fc">offset</a>;</div>
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span> le-&gt;<a class="code hl_variable" href="structEcBlockLookupEntry.html#aedeac38371118113a77e02cc65512320">stripe_index</a> = s;</div>
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span> le-&gt;<a class="code hl_variable" href="structEcBlockLookupEntry.html#a8645b89803f927a7608a6f8d30d74292">position</a> = k;</div>
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span> HASH_ADD(hh, lookup_root, block_offset, <span class="keyword">sizeof</span>(uint64_t), le);</div>
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span> }</div>
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span> }</div>
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span> }</div>
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span> </div>
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span> <span class="comment">/* Store parsed data based on group type */</span></div>
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span> <span class="keywordflow">if</span>(group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a6093f8c41fb1aa55c8367e2a92fe9f7f">groupType</a> == <a class="code hl_enumvalue" href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eacca27cc435d2d572b6d740594da18db9">kECGroupData</a>)</div>
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span> {</div>
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a> = group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a46b938eb0fea65843e741c2cc240d14b">K</a>;</div>
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a> = group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">M</a>;</div>
<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a> = group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a2a457b42f8562c872b0b7e0f1b054ef5">shardSize</a>;</div>
<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span> data_stripes = grp_stripes;</div>
<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span> data_stripe_count = group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a>;</div>
<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span> }</div>
<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span> {</div>
<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span> <span class="comment">/* For non-data groups, free the parsed stripes for now.</span></div>
<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span><span class="comment"> * Recovery for DDT/metadata/index groups would use these,</span></div>
<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span><span class="comment"> * but the current read path only recovers data blocks. */</span></div>
<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span> <span class="keywordflow">if</span>(grp_stripes)</div>
<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span> {</div>
<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span> <span class="keywordflow">for</span>(uint32_t s = 0; s &lt; group.<a class="code hl_variable" href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">stripeCount</a>; s++)</div>
<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span> {</div>
<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span> free(grp_stripes[s].data_entries);</div>
<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span> free(grp_stripes[s].parity_offsets);</div>
<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span> }</div>
<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span> free(grp_stripes);</div>
<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span> }</div>
<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span> }</div>
<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span> }</div>
<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span> </div>
<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span> free(payload);</div>
<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span> </div>
<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">ec_read_stripes</a> = data_stripes;</div>
<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3e230f326ef10eae2a496ca4532c8143">ec_read_stripe_count</a> = data_stripe_count;</div>
<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">ec_block_lookup</a> = lookup_root;</div>
<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#af7b4e0a80f76581b0cb1440d9a689f0f">ec_recovery_available</a> = (data_stripes != NULL &amp;&amp; data_stripe_count &gt; 0);</div>
<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span> </div>
<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span> <span class="comment">/* Create RS codec for decoding */</span></div>
<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#af7b4e0a80f76581b0cb1440d9a689f0f">ec_recovery_available</a> &amp;&amp; !ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a>)</div>
<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a> = <a class="code hl_function" href="reed__solomon_8c.html#a68a7b13ef6443640abc2818a3bd7d5bf">rs_create</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>);</div>
<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span> </div>
<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">&quot;ECMB loaded: %u groups, K=%u M=%u shard_size=%u data_stripes=%u&quot;</span>,</div>
<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span> ecmb.<a class="code hl_variable" href="structErasureCodingMapHeader.html#accae80e978eeccc7c026eb5ade721aae">stripeGroupCount</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a>, data_stripe_count);</div>
<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span>}</div>
</div>
<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span> </div>
<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment">/* =========================================================================</span></div>
<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span><span class="comment"> * Data block recovery (read path)</span></div>
<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span><span class="comment"> * ========================================================================= */</span></div>
<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span> </div>
<div class="foldopen" id="foldopen01145" data-start="{" data-end="}">
<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"><a class="line" href="erasure__internal_8h.html#a7a9ac507738cdf72e951f152edd4d233"> 1145</a></span>int32_t <a class="code hl_function" href="erasure_8c.html#a7a9ac507738cdf72e951f152edd4d233">ec_recover_data_block</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx, uint64_t block_offset, uint64_t offset,</div>
<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span> uint8_t *data, uint32_t *length, uint8_t sector_status)</div>
<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span>{</div>
<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span> <span class="keywordflow">if</span>(!ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#af7b4e0a80f76581b0cb1440d9a689f0f">ec_recovery_available</a> || ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a>) <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#ac9f4e38e8d5a1f940c9cd0c7f6788c37">AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</a>;</div>
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span> </div>
<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span> </div>
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span> <span class="comment">/* Look up which stripe this block belongs to */</span></div>
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span> <a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *le = NULL;</div>
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span> HASH_FIND(hh, (<a class="code hl_struct" href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">ec_block_lookup</a>, &amp;block_offset, <span class="keyword">sizeof</span>(uint64_t), le);</div>
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span> <span class="keywordflow">if</span>(!le) { ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>; <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#ac9f4e38e8d5a1f940c9cd0c7f6788c37">AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</a>; }</div>
<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span> </div>
<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span> uint32_t si = le-&gt;<a class="code hl_variable" href="structEcBlockLookupEntry.html#aedeac38371118113a77e02cc65512320">stripe_index</a>;</div>
<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span> <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *stripes = (<a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">ec_read_stripes</a>;</div>
<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span> <a class="code hl_struct" href="structEcReadStripe.html">EcReadStripe</a> *stripe = &amp;stripes[si];</div>
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span> uint16_t <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">ec_K</a>;</div>
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span> uint16_t M = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">ec_M</a>;</div>
<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span> uint32_t shard_size = ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">ec_data_shard_size</a>;</div>
<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span> </div>
<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span> <span class="comment">/* Always use K+M shards for RS. For partial stripes (actual_k &lt; K),</span></div>
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment"> * positions actual_k..K-1 are all-zero (calloc&#39;d) and marked present.</span></div>
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment"> * This works because the encoding used the K-size generator matrix</span></div>
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span><span class="comment"> * and zero-contributions for unused positions. */</span></div>
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span> uint16_t total_shards = <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + M;</div>
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span> </div>
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span> <span class="comment">/* Allocate shard pointers and present flags */</span></div>
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span> uint8_t **shards = (uint8_t **)calloc(total_shards, <span class="keyword">sizeof</span>(uint8_t *));</div>
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span> uint8_t *present = (uint8_t *)calloc(total_shards, 1);</div>
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span> <span class="keywordflow">if</span>(!shards || !present) { free(shards); free(present); ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>; <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>; }</div>
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span> </div>
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span> <span class="keywordflow">for</span>(uint16_t i = 0; i &lt; total_shards; i++)</div>
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span> {</div>
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span> shards[i] = (uint8_t *)calloc(1, shard_size);</div>
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span> <span class="keywordflow">if</span>(!shards[i])</div>
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span> {</div>
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span> <span class="keywordflow">for</span>(uint16_t j = 0; j &lt; i; j++) free(shards[j]);</div>
<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span> free(shards); free(present);</div>
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>;</div>
<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span> }</div>
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span> }</div>
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span> </div>
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span> <span class="comment">/* Read data shards from file and verify each one&#39;s CRC64 against ECMB */</span></div>
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span> <span class="keywordflow">for</span>(uint16_t k = 0; k &lt; stripe-&gt;<a class="code hl_variable" href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f">actual_k</a>; k++)</div>
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span> {</div>
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span> <a class="code hl_struct" href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a> *de = &amp;stripe-&gt;<a class="code hl_variable" href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">data_entries</a>[k];</div>
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span> uint32_t read_size = de-&gt;<a class="code hl_variable" href="structStripeDataBlockEntry.html#a3351d43103f9f7fbd9f4486161a1656d">onDiskSize</a>;</div>
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span> <span class="keywordflow">if</span>(read_size &gt; shard_size) read_size = shard_size;</div>
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span> </div>
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)de-&gt;<a class="code hl_variable" href="structStripeDataBlockEntry.html#a7aac714b3d98b543e792537fd7c8d3fc">offset</a>, SEEK_SET);</div>
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span> <span class="keywordflow">if</span>(fread(shards[k], read_size, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span> {</div>
<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span> present[k] = 0;</div>
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span> }</div>
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span> </div>
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span> <span class="comment">/* Verify CRC64 (zero-padded to shard_size via calloc) */</span></div>
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span> uint64_t crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(shards[k], shard_size);</div>
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span> present[k] = (crc == de-&gt;<a class="code hl_variable" href="structStripeDataBlockEntry.html#af85494afc772fe1469927c826e24a1b2">shardCrc64</a>) ? 1 : 0;</div>
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span> }</div>
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span> </div>
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span> <span class="comment">/* Positions actual_k..K-1 are all-zero and present (unused stripe positions) */</span></div>
<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span> <span class="keywordflow">for</span>(uint16_t k = stripe-&gt;<a class="code hl_variable" href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f">actual_k</a>; k &lt; <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a>; k++)</div>
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span> present[k] = 1; <span class="comment">/* All-zero shards, implicitly correct */</span></div>
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span> </div>
<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span> <span class="comment">/* Read parity shards */</span></div>
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span> <span class="keywordflow">for</span>(uint16_t m = 0; m &lt; M; m++)</div>
<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span> {</div>
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span> uint16_t shard_idx = <a class="code hl_variable" href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a> + m;</div>
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span> uint64_t parity_offset = stripe-&gt;<a class="code hl_variable" href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f">parity_offsets</a>[m];</div>
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span> </div>
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span> <a class="code hl_function" href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>, (<a class="code hl_typedef" href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a>)parity_offset, SEEK_SET);</div>
<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span> </div>
<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span> <span class="comment">/* Read parity block header */</span></div>
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> parity_header;</div>
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span> <span class="keywordflow">if</span>(fread(&amp;parity_header, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>), 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span> {</div>
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span> present[shard_idx] = 0;</div>
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span> }</div>
<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span> </div>
<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span> <span class="comment">/* Read and decompress parity payload */</span></div>
<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span> <span class="keywordflow">if</span>(parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>)</div>
<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span> {</div>
<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span> uint32_t to_read = parity_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>;</div>
<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span> <span class="keywordflow">if</span>(to_read &gt; shard_size) to_read = shard_size;</div>
<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span> <span class="keywordflow">if</span>(fread(shards[shard_idx], to_read, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1)</div>
<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span> {</div>
<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span> present[shard_idx] = 0;</div>
<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span> }</div>
<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span> }</div>
<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a>)</div>
<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span> {</div>
<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span> uint32_t cmp_data_len = parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a> - <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span> uint8_t lzma_props[<a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>];</div>
<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span> <span class="keywordflow">if</span>(fread(lzma_props, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1 )</div>
<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span> {</div>
<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span> present[shard_idx] = 0;</div>
<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span> }</div>
<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span> uint8_t *cmp = (uint8_t *)malloc(cmp_data_len);</div>
<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span> <span class="keywordflow">if</span>(!cmp) { present[shard_idx] = 0; <span class="keywordflow">continue</span>; }</div>
<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span> <span class="keywordflow">if</span>(fread(cmp, cmp_data_len, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1) { free(cmp); present[shard_idx] = 0; <span class="keywordflow">continue</span>; }</div>
<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span> </div>
<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span> <span class="keywordtype">size_t</span> out_size = shard_size;</div>
<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span> <span class="keywordtype">size_t</span> lzma_src = (size_t)cmp_data_len;</div>
<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span> <a class="code hl_function" href="decls_8h.html#a12f3cbc43c2f57a11fbba32a71ba2704">aaruf_lzma_decode_buffer</a>(shards[shard_idx], &amp;out_size, cmp, &amp;lzma_src, lzma_props, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span> free(cmp);</div>
<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span> }</div>
<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(parity_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a>)</div>
<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span> {</div>
<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span> uint8_t *cmp = (uint8_t *)malloc(parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>);</div>
<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span> <span class="keywordflow">if</span>(!cmp) { present[shard_idx] = 0; <span class="keywordflow">continue</span>; }</div>
<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span> <span class="keywordflow">if</span>(fread(cmp, parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>, 1, ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">imageStream</a>) != 1) { free(cmp); present[shard_idx] = 0; <span class="keywordflow">continue</span>; }</div>
<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span> </div>
<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span> <a class="code hl_function" href="decls_8h.html#ac0f8004dbea44979bf8b58c3e3a1a6ae">aaruf_zstd_decode_buffer</a>(shards[shard_idx], shard_size, cmp, parity_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>);</div>
<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span> free(cmp);</div>
<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span> }</div>
<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span> <span class="keywordflow">else</span></div>
<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span> {</div>
<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span> present[shard_idx] = 0;</div>
<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span> }</div>
<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span> present[shard_idx] = 1;</div>
<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span> }</div>
<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span> </div>
<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span> <span class="comment">/* Always use the original RS(K,M) codec — partial stripes have zero-padded unused positions */</span></div>
<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span> <a class="code hl_struct" href="structrs__context.html">rs_context</a> *rs = (<a class="code hl_struct" href="structrs__context.html">rs_context</a> *)ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">ec_rs_ctx</a>;</div>
<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span> <span class="keywordflow">if</span>(!rs)</div>
<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span> {</div>
<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span> <span class="keywordflow">for</span>(uint16_t i = 0; i &lt; total_shards; i++) free(shards[i]);</div>
<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span> free(shards); free(present);</div>
<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a>;</div>
<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span> }</div>
<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span> </div>
<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span> <span class="comment">/* RS decode */</span></div>
<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span> <span class="keywordtype">int</span> rc = <a class="code hl_function" href="reed__solomon_8c.html#aea0122b72cfa6f77a4751d5466e73024">rs_decode</a>(rs, shards, present, shard_size);</div>
<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span> </div>
<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span> <span class="keywordflow">if</span>(rc != 0)</div>
<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span> {</div>
<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span> <span class="keywordflow">for</span>(uint16_t i = 0; i &lt; total_shards; i++) free(shards[i]);</div>
<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span> free(shards); free(present);</div>
<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span> <span class="keywordflow">return</span> <a class="code hl_define" href="errors_8h.html#ac9f4e38e8d5a1f940c9cd0c7f6788c37">AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</a>;</div>
<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span> }</div>
<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span> </div>
<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span> <span class="comment">/* Find the shard corresponding to our corrupted block */</span></div>
<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span> uint16_t our_pos = le-&gt;<a class="code hl_variable" href="structEcBlockLookupEntry.html#a8645b89803f927a7608a6f8d30d74292">position</a>;</div>
<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span> uint8_t *recovered_shard = shards[our_pos];</div>
<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span> </div>
<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span> <span class="comment">/* Parse the recovered BlockHeader */</span></div>
<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> recovered_header;</div>
<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span> memcpy(&amp;recovered_header, recovered_shard, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>));</div>
<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span> </div>
<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span> <span class="comment">/* Decompress the recovered payload */</span></div>
<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span> uint32_t hdr_size = <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>);</div>
<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span> uint8_t *recovered_payload = recovered_shard + hdr_size;</div>
<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span> uint32_t payload_len = recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">cmpLength</a>;</div>
<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span> </div>
<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span> uint8_t *block = NULL;</div>
<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span> </div>
<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span> <span class="keywordflow">if</span>(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a>)</div>
<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span> {</div>
<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span> block = (uint8_t *)malloc(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span> <span class="keywordflow">if</span>(block) memcpy(block, recovered_payload, recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span> }</div>
<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a>)</div>
<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span> {</div>
<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span> uint8_t *lzma_props = recovered_payload;</div>
<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span> uint8_t *lzma_data = recovered_payload + <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span> uint32_t lzma_data_len = payload_len - <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>;</div>
<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span> </div>
<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span> block = (uint8_t *)malloc(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span> <span class="keywordflow">if</span>(block)</div>
<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span> {</div>
<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span> <span class="keywordtype">size_t</span> out_size = recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>;</div>
<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span> <span class="keywordtype">size_t</span> lzma_src2 = (size_t)lzma_data_len;</div>
<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span> <a class="code hl_function" href="decls_8h.html#a12f3cbc43c2f57a11fbba32a71ba2704">aaruf_lzma_decode_buffer</a>(block, &amp;out_size, lzma_data, &amp;lzma_src2, lzma_props, <a class="code hl_define" href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a>);</div>
<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span> }</div>
<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span> }</div>
<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a>)</div>
<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span> {</div>
<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span> block = (uint8_t *)malloc(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span> <span class="keywordflow">if</span>(block)</div>
<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span> <a class="code hl_function" href="decls_8h.html#ac0f8004dbea44979bf8b58c3e3a1a6ae">aaruf_zstd_decode_buffer</a>(block, recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>, recovered_payload, payload_len);</div>
<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span> }</div>
<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span>(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">compression</a> == <a class="code hl_enumvalue" href="enums_8h.html#affec749ed88365143745313ae9168263ab68094bb67edceda03f5044de1e54428">kCompressionFlac</a>)</div>
<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span> {</div>
<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span> block = (uint8_t *)malloc(recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span> <span class="keywordflow">if</span>(block)</div>
<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span> <a class="code hl_function" href="decls_8h.html#af0ff6ad1495d50a8fa0ce0005be69471">aaruf_flac_decode_redbook_buffer</a>(block, recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>, recovered_payload, payload_len);</div>
<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span> }</div>
<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span> </div>
<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span> int32_t result = <a class="code hl_define" href="errors_8h.html#ac9f4e38e8d5a1f940c9cd0c7f6788c37">AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</a>;</div>
<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span> </div>
<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span> <span class="keywordflow">if</span>(block)</div>
<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span> {</div>
<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span> <span class="comment">/* Verify recovered uncompressed data CRC64 */</span></div>
<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span> uint64_t block_crc = <a class="code hl_function" href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a>(block, recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>);</div>
<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span> <span class="keywordflow">if</span>(block_crc == recovered_header.<a class="code hl_variable" href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">crc64</a>)</div>
<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span> {</div>
<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span> <span class="comment">/* Extract the requested sector */</span></div>
<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span> uint32_t sector_size = recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a5bd50f95c8c1f91e5013a1a154690beb">sectorSize</a>;</div>
<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span> <span class="keywordflow">if</span>(sector_size &gt; 0 &amp;&amp; offset * sector_size + sector_size &lt;= recovered_header.<a class="code hl_variable" href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">length</a>)</div>
<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span> {</div>
<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span> memcpy(data, block + offset * sector_size, sector_size);</div>
<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span> *length = sector_size;</div>
<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span> result = <a class="code hl_define" href="errors_8h.html#a1d6e49f7e8a1fa489efa0a582e90b5de">AARUF_STATUS_OK</a>;</div>
<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span> </div>
<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span> <span class="comment">/* Cache the recovered block so subsequent sector reads from the same</span></div>
<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span><span class="comment"> * block don&#39;t re-trigger recovery (this is the critical optimization). */</span></div>
<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span> <a class="code hl_function" href="lru_8h.html#a0735969939ca80db3fe439ed92b787bb">add_to_cache_uint64</a>(&amp;ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a58359ec8607d1d10e0af8699be238e77">block_cache</a>, block_offset, block);</div>
<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span> </div>
<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span> <span class="comment">/* Also cache the recovered BlockHeader */</span></div>
<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span> <a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> *cached_hdr = (<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a> *)malloc(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>));</div>
<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span> <span class="keywordflow">if</span>(cached_hdr)</div>
<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span> {</div>
<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span> memcpy(cached_hdr, &amp;recovered_header, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structBlockHeader.html">BlockHeader</a>));</div>
<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span> <a class="code hl_function" href="lru_8h.html#a0735969939ca80db3fe439ed92b787bb">add_to_cache_uint64</a>(&amp;ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3a12addf4a338cc04471709604d48ae1">block_header_cache</a>, block_offset, cached_hdr);</div>
<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span> }</div>
<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span> </div>
<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span> block = NULL; <span class="comment">/* Ownership transferred to cache — don&#39;t free */</span></div>
<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span> }</div>
<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span> }</div>
<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span> free(block); <span class="comment">/* Only frees if not transferred to cache */</span></div>
<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span> }</div>
<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span> </div>
<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span> <span class="keywordflow">for</span>(uint16_t i = 0; i &lt; total_shards; i++) free(shards[i]);</div>
<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span> free(shards);</div>
<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span> free(present);</div>
<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span> </div>
<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">ec_recovery_in_progress</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span>}</div>
</div>
<div class="ttc" id="aaaruformat_8h_html"><div class="ttname"><a href="aaruformat_8h.html">aaruformat.h</a></div></div>
<div class="ttc" id="aconsts_8h_html"><div class="ttname"><a href="consts_8h.html">consts.h</a></div><div class="ttdoc">Core public constants and compile‑time limits for the Aaru container format implementation.</div></div>
<div class="ttc" id="aconsts_8h_html_a1d7434dbf5927484a6d767b8a27c3cd4"><div class="ttname"><a href="consts_8h.html#a1d7434dbf5927484a6d767b8a27c3cd4">AARU_RECOVERY_FOOTER_MAGIC</a></div><div class="ttdeci">#define AARU_RECOVERY_FOOTER_MAGIC</div><div class="ttdoc">Magic number at the end of the recovery footer: &quot;AVRECMFR&quot; in ASCII little-endian.</div><div class="ttdef"><b>Definition</b> <a href="consts_8h_source.html#l00115">consts.h:115</a></div></div>
<div class="ttc" id="aconsts_8h_html_a25fd08252b97a0230d3efc899bddd240"><div class="ttname"><a href="consts_8h.html#a25fd08252b97a0230d3efc899bddd240">LZMA_PROPERTIES_LENGTH</a></div><div class="ttdeci">#define LZMA_PROPERTIES_LENGTH</div><div class="ttdoc">Size in bytes of the fixed LZMA properties header (lc/lp/pb + dictionary size).</div><div class="ttdef"><b>Definition</b> <a href="consts_8h_source.html#l00082">consts.h:82</a></div></div>
<div class="ttc" id="aconsts_8h_html_a3c3ba66fe2b547655c9e4b16a1ba519a"><div class="ttname"><a href="consts_8h.html#a3c3ba66fe2b547655c9e4b16a1ba519a">AARU_MAGIC</a></div><div class="ttdeci">#define AARU_MAGIC</div><div class="ttdoc">Magic identifier for AaruFormat container (ASCII &quot;AARUFRMT&quot;).</div><div class="ttdef"><b>Definition</b> <a href="consts_8h_source.html#l00064">consts.h:64</a></div></div>
<div class="ttc" id="acontext_8h_html"><div class="ttname"><a href="context_8h.html">context.h</a></div><div class="ttdoc">Central runtime context structures for libaaruformat (image state, caches, checksum buffers).</div></div>
<div class="ttc" id="adata_8h_html"><div class="ttname"><a href="data_8h.html">data.h</a></div><div class="ttdoc">On-disk layout structures for data-bearing and geometry blocks.</div></div>
<div class="ttc" id="addt_8h_html"><div class="ttname"><a href="ddt_8h.html">ddt.h</a></div><div class="ttdoc">On-disk headers for Deduplication Data Tables (DDT) versions 1 and 2.</div></div>
<div class="ttc" id="adecls_8h_html_a018e0da1c1f7e4f6187a982c0e40e056"><div class="ttname"><a href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a></div><div class="ttdeci">#define AARU_CALL</div><div class="ttdef"><b>Definition</b> <a href="decls_8h_source.html#l00046">decls.h:46</a></div></div>
<div class="ttc" id="adecls_8h_html_a0e69fad529047d6fe9440b1fc66c3f85"><div class="ttname"><a href="decls_8h.html#a0e69fad529047d6fe9440b1fc66c3f85">aaruf_lzma_encode_buffer</a></div><div class="ttdeci">int32_t aaruf_lzma_encode_buffer(uint8_t *dst_buffer, size_t *dst_size, const uint8_t *src_buffer, size_t src_size, uint8_t *out_props, size_t *out_props_size, int32_t level, uint32_t dict_size, int32_t lc, int32_t lp, int32_t pb, int32_t fb, int32_t num_threads)</div><div class="ttdoc">Encodes a buffer using LZMA compression.</div><div class="ttdef"><b>Definition</b> <a href="lzma_8c_source.html#l00065">lzma.c:65</a></div></div>
<div class="ttc" id="adecls_8h_html_a0fee4834bf0747bcd933c4e754aa4692"><div class="ttname"><a href="decls_8h.html#a0fee4834bf0747bcd933c4e754aa4692">aaruf_crc64_data</a></div><div class="ttdeci">uint64_t aaruf_crc64_data(const uint8_t *data, uint32_t len)</div><div class="ttdef"><b>Definition</b> <a href="crc64_8c_source.html#l00160">crc64.c:160</a></div></div>
<div class="ttc" id="adecls_8h_html_a12f3cbc43c2f57a11fbba32a71ba2704"><div class="ttname"><a href="decls_8h.html#a12f3cbc43c2f57a11fbba32a71ba2704">aaruf_lzma_decode_buffer</a></div><div class="ttdeci">int32_t aaruf_lzma_decode_buffer(uint8_t *dst_buffer, size_t *dst_size, const uint8_t *src_buffer, size_t *src_size, const uint8_t *props, size_t props_size)</div><div class="ttdoc">Decodes an LZMA-compressed buffer.</div><div class="ttdef"><b>Definition</b> <a href="lzma_8c_source.html#l00039">lzma.c:39</a></div></div>
<div class="ttc" id="adecls_8h_html_a3950b73c924a7096bb2313e0858a315a"><div class="ttname"><a href="decls_8h.html#a3950b73c924a7096bb2313e0858a315a">aaruf_zstd_encode_buffer</a></div><div class="ttdeci">size_t aaruf_zstd_encode_buffer(uint8_t *dst_buffer, size_t dst_size, const uint8_t *src_buffer, size_t src_size, int level, int num_threads)</div><div class="ttdoc">Encodes a buffer using Zstandard compression.</div><div class="ttdef"><b>Definition</b> <a href="zstd_8c_source.html#l00059">zstd.c:59</a></div></div>
<div class="ttc" id="adecls_8h_html_a9001412c35f3c92d3a9320d27b0d97f9"><div class="ttname"><a href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a></div><div class="ttdeci">#define AARU_EXPORT</div><div class="ttdef"><b>Definition</b> <a href="decls_8h_source.html#l00055">decls.h:55</a></div></div>
<div class="ttc" id="adecls_8h_html_ac0f8004dbea44979bf8b58c3e3a1a6ae"><div class="ttname"><a href="decls_8h.html#ac0f8004dbea44979bf8b58c3e3a1a6ae">aaruf_zstd_decode_buffer</a></div><div class="ttdeci">size_t aaruf_zstd_decode_buffer(uint8_t *dst_buffer, size_t dst_size, const uint8_t *src_buffer, size_t src_size)</div><div class="ttdoc">Decodes a Zstandard-compressed buffer.</div><div class="ttdef"><b>Definition</b> <a href="zstd_8c_source.html#l00034">zstd.c:34</a></div></div>
<div class="ttc" id="adecls_8h_html_af0ff6ad1495d50a8fa0ce0005be69471"><div class="ttname"><a href="decls_8h.html#af0ff6ad1495d50a8fa0ce0005be69471">aaruf_flac_decode_redbook_buffer</a></div><div class="ttdeci">size_t aaruf_flac_decode_redbook_buffer(uint8_t *dst_buffer, size_t dst_size, const uint8_t *src_buffer, size_t src_size)</div><div class="ttdoc">Decodes a FLAC-compressed Red Book audio buffer.</div><div class="ttdef"><b>Definition</b> <a href="flac_8c_source.html#l00048">flac.c:48</a></div></div>
<div class="ttc" id="aenums_8h_html"><div class="ttname"><a href="enums_8h.html">enums.h</a></div></div>
<div class="ttc" id="aenums_8h_html_a485c1f7093f3c3171ac27404bfb1b03ea5fb086c67288ffec790901b1026b3e0f"><div class="ttname"><a href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03ea5fb086c67288ffec790901b1026b3e0f">kECGroupMetadata</a></div><div class="ttdeci">@ kECGroupMetadata</div><div class="ttdoc">Metadata/media tag blocks.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00341">enums.h:341</a></div></div>
<div class="ttc" id="aenums_8h_html_a485c1f7093f3c3171ac27404bfb1b03ea85486aa10ff27c8196e2f063b097679e"><div class="ttname"><a href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03ea85486aa10ff27c8196e2f063b097679e">kECGroupIndex</a></div><div class="ttdeci">@ kECGroupIndex</div><div class="ttdoc">Index block (K=1, M replicas).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00342">enums.h:342</a></div></div>
<div class="ttc" id="aenums_8h_html_a485c1f7093f3c3171ac27404bfb1b03eaba5fd72984872e2da8f9adcee83c592a"><div class="ttname"><a href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eaba5fd72984872e2da8f9adcee83c592a">kECGroupDdtPrimary</a></div><div class="ttdeci">@ kECGroupDdtPrimary</div><div class="ttdoc">Primary DDT (K=1, M replicas).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00340">enums.h:340</a></div></div>
<div class="ttc" id="aenums_8h_html_a485c1f7093f3c3171ac27404bfb1b03eacca27cc435d2d572b6d740594da18db9"><div class="ttname"><a href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eacca27cc435d2d572b6d740594da18db9">kECGroupData</a></div><div class="ttdeci">@ kECGroupData</div><div class="ttdoc">User data blocks (DBLK).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00338">enums.h:338</a></div></div>
<div class="ttc" id="aenums_8h_html_a485c1f7093f3c3171ac27404bfb1b03eaf5acb726ee779a2e93b636a0bee14972"><div class="ttname"><a href="enums_8h.html#a485c1f7093f3c3171ac27404bfb1b03eaf5acb726ee779a2e93b636a0bee14972">kECGroupDdtSecondary</a></div><div class="ttdeci">@ kECGroupDdtSecondary</div><div class="ttdoc">Secondary DDT subtables.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00339">enums.h:339</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3a318acaf230a8ad091ef405caf7e4f411"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a318acaf230a8ad091ef405caf7e4f411">IndexBlock3</a></div><div class="ttdeci">@ IndexBlock3</div><div class="ttdoc">Block containing the index v3.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00171">enums.h:171</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a5a0811c5ee97536aef900cecb8787713">DataBlock</a></div><div class="ttdeci">@ DataBlock</div><div class="ttdoc">Block containing data.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00164">enums.h:164</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3a6ee3c4c583df36e3dfe796593c1e9439"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a6ee3c4c583df36e3dfe796593c1e9439">IndexBlock2</a></div><div class="ttdeci">@ IndexBlock2</div><div class="ttdoc">Block containing the index v2.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00170">enums.h:170</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3a76b6a78e4e765794c4cca2dde5bfc3fb">DeDuplicationTableSecondary</a></div><div class="ttdeci">@ DeDuplicationTableSecondary</div><div class="ttdoc">Block containing a secondary deduplication table (v2).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00168">enums.h:168</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3ab8d63dc690b2ba82f066fdc31ab5adad"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ab8d63dc690b2ba82f066fdc31ab5adad">IndexBlock</a></div><div class="ttdeci">@ IndexBlock</div><div class="ttdoc">Block containing the index (v1).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00169">enums.h:169</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3aba4d0f50b26af1d0292daaa0d70feacf">DeDuplicationTable2</a></div><div class="ttdeci">@ DeDuplicationTable2</div><div class="ttdoc">Block containing a deduplication table v2.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00166">enums.h:166</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3ac9f1e20a51c73f238aa322e180c42bd4"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3ac9f1e20a51c73f238aa322e180c42bd4">DeDuplicationTable</a></div><div class="ttdeci">@ DeDuplicationTable</div><div class="ttdoc">Block containing a deduplication table (v1).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00165">enums.h:165</a></div></div>
<div class="ttc" id="aenums_8h_html_a54420623f26ab6bb61042b41cccf37a3af9f5bd022e035b2a787279913a85cf19"><div class="ttname"><a href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3af9f5bd022e035b2a787279913a85cf19">ErasureCodingMapBlock</a></div><div class="ttdeci">@ ErasureCodingMapBlock</div><div class="ttdoc">Block containing erasure coding stripe map and recovery metadata.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00187">enums.h:187</a></div></div>
<div class="ttc" id="aenums_8h_html_a8224cd67a8e4e3d365e0371899c7065fa8b803843c50589f197b6461d1c74ea9b"><div class="ttname"><a href="enums_8h.html#a8224cd67a8e4e3d365e0371899c7065fa8b803843c50589f197b6461d1c74ea9b">AARU_FEATURE_ROCOMPAT_ERASURE</a></div><div class="ttdeci">@ AARU_FEATURE_ROCOMPAT_ERASURE</div><div class="ttdoc">Image contains erasure coding parity blocks and recovery metadata.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00319">enums.h:319</a></div></div>
<div class="ttc" id="aenums_8h_html_a83c99da65804eb80cfb955eb9a15ef5ea80cd481d5fe067366bbde7db7cab4e22"><div class="ttname"><a href="enums_8h.html#a83c99da65804eb80cfb955eb9a15ef5ea80cd481d5fe067366bbde7db7cab4e22">kErasureCodingRsVandermonde</a></div><div class="ttdeci">@ kErasureCodingRsVandermonde</div><div class="ttdoc">Reed-Solomon with Vandermonde generator matrix over GF(2^8).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00329">enums.h:329</a></div></div>
<div class="ttc" id="aenums_8h_html_a83c99da65804eb80cfb955eb9a15ef5ead3ee61b96379729331df2b6ed04a95a0"><div class="ttname"><a href="enums_8h.html#a83c99da65804eb80cfb955eb9a15ef5ead3ee61b96379729331df2b6ed04a95a0">kErasureCodingXor</a></div><div class="ttdeci">@ kErasureCodingXor</div><div class="ttdoc">Simple XOR parity (M must be 1).</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00328">enums.h:328</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6a0415d7a4a6fe1e616eecc1a0465c8dd4"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a0415d7a4a6fe1e616eecc1a0465c8dd4">kDataTypeErasureParityDdt</a></div><div class="ttdeci">@ kDataTypeErasureParityDdt</div><div class="ttdoc">Erasure coding parity shard for DDT secondary blocks.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00152">enums.h:152</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6a08a4aa580854c87d64264258bb690bc3"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a08a4aa580854c87d64264258bb690bc3">kDataTypeErasureParityDdtPrimary</a></div><div class="ttdeci">@ kDataTypeErasureParityDdtPrimary</div><div class="ttdoc">Erasure coding parity replica for DDT primary block.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00153">enums.h:153</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6a5069a00563fe1a94724c8f15f463419d"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6a5069a00563fe1a94724c8f15f463419d">kDataTypeErasureParityIndex</a></div><div class="ttdeci">@ kDataTypeErasureParityIndex</div><div class="ttdoc">Erasure coding parity replica for index block.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00155">enums.h:155</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6aa85ba79bd52a96a4ca058718351b06f5"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6aa85ba79bd52a96a4ca058718351b06f5">kDataTypeErasureParityMeta</a></div><div class="ttdeci">@ kDataTypeErasureParityMeta</div><div class="ttdoc">Erasure coding parity shard for metadata blocks.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00154">enums.h:154</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6ace86d5a01f2f20eab66f36b8af9676c2"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6ace86d5a01f2f20eab66f36b8af9676c2">kDataTypeUserData</a></div><div class="ttdeci">@ kDataTypeUserData</div><div class="ttdoc">User (main) data.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00048">enums.h:48</a></div></div>
<div class="ttc" id="aenums_8h_html_ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6"><div class="ttname"><a href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6adb8752d43e2e151c60d90bb2962d16a6">kDataTypeErasureParity</a></div><div class="ttdeci">@ kDataTypeErasureParity</div><div class="ttdoc">Erasure coding parity shard for data blocks.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00151">enums.h:151</a></div></div>
<div class="ttc" id="aenums_8h_html_af887903d155851fe30d08053c4b2c1b8a2ee503de2bb99eb6a677fd9871a9c44d"><div class="ttname"><a href="enums_8h.html#af887903d155851fe30d08053c4b2c1b8a2ee503de2bb99eb6a677fd9871a9c44d">AARUF_STATUS_INVALID_CONTEXT</a></div><div class="ttdeci">@ AARUF_STATUS_INVALID_CONTEXT</div><div class="ttdoc">Provided context/handle is invalid.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00237">enums.h:237</a></div></div>
<div class="ttc" id="aenums_8h_html_affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7"><div class="ttname"><a href="enums_8h.html#affec749ed88365143745313ae9168263a66b049c2b816874ab71b06cebf5afcd7">kCompressionLzma</a></div><div class="ttdeci">@ kCompressionLzma</div><div class="ttdoc">LZMA compression.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00034">enums.h:34</a></div></div>
<div class="ttc" id="aenums_8h_html_affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84"><div class="ttname"><a href="enums_8h.html#affec749ed88365143745313ae9168263a6925460497824fd20caa5ba1925cde84">kCompressionNone</a></div><div class="ttdeci">@ kCompressionNone</div><div class="ttdoc">Not compressed.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00033">enums.h:33</a></div></div>
<div class="ttc" id="aenums_8h_html_affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc"><div class="ttname"><a href="enums_8h.html#affec749ed88365143745313ae9168263a6ee0deaccf9cd167806cc479afffc0cc">kCompressionZstd</a></div><div class="ttdeci">@ kCompressionZstd</div><div class="ttdoc">Zstandard compression.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00037">enums.h:37</a></div></div>
<div class="ttc" id="aenums_8h_html_affec749ed88365143745313ae9168263ab68094bb67edceda03f5044de1e54428"><div class="ttname"><a href="enums_8h.html#affec749ed88365143745313ae9168263ab68094bb67edceda03f5044de1e54428">kCompressionFlac</a></div><div class="ttdeci">@ kCompressionFlac</div><div class="ttdoc">FLAC compression.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00035">enums.h:35</a></div></div>
<div class="ttc" id="aerasure_8c_html_a1222930aded868b0b0c4eeed13c237e2"><div class="ttname"><a href="erasure_8c.html#a1222930aded868b0b0c4eeed13c237e2">ec_collect_blocks_by_type</a></div><div class="ttdeci">static void ec_collect_blocks_by_type(aaruformat_context *ctx, uint32_t block_type, uint64_t **out_offsets, uint32_t **out_sizes, uint32_t *out_count)</div><div class="ttdoc">Collect file offsets and on-disk sizes for index entries matching a block type.</div><div class="ttdef"><b>Definition</b> <a href="#l00642">erasure.c:642</a></div></div>
<div class="ttc" id="aerasure_8c_html_a1883da545c74667f3438d8e48b195aa1"><div class="ttname"><a href="erasure_8c.html#a1883da545c74667f3438d8e48b195aa1">ec_stripe_icd</a></div><div class="ttdeci">static UT_icd ec_stripe_icd</div><div class="ttdef"><b>Definition</b> <a href="#l00065">erasure.c:65</a></div></div>
<div class="ttc" id="aerasure_8c_html_a18f424702fcd85725ee26c1cf7e253db"><div class="ttname"><a href="erasure_8c.html#a18f424702fcd85725ee26c1cf7e253db">ec_load_ecmb</a></div><div class="ttdeci">void ec_load_ecmb(aaruformat_context *ctx)</div><div class="ttdoc">Try to load the ECMB from the recovery footer at EOF.</div><div class="ttdef"><b>Definition</b> <a href="#l00941">erasure.c:941</a></div></div>
<div class="ttc" id="aerasure_8c_html_a38a12ac5d36e23b28d2f110906b14126"><div class="ttname"><a href="erasure_8c.html#a38a12ac5d36e23b28d2f110906b14126">ec_finalize</a></div><div class="ttdeci">void ec_finalize(aaruformat_context *ctx)</div><div class="ttdoc">Flush all partial data stripes and write parity for all groups + ECMB + recovery footer.</div><div class="ttdef"><b>Definition</b> <a href="#l00690">erasure.c:690</a></div></div>
<div class="ttc" id="aerasure_8c_html_a415f83d4f5fbce86adcec87aa368313c"><div class="ttname"><a href="erasure_8c.html#a415f83d4f5fbce86adcec87aa368313c">WRITE_GROUP</a></div><div class="ttdeci">#define WRITE_GROUP(desc, desc_len, grp)</div></div>
<div class="ttc" id="aerasure_8c_html_a51fe2ca1a6eabf109f0cfc4b3223508b"><div class="ttname"><a href="erasure_8c.html#a51fe2ca1a6eabf109f0cfc4b3223508b">aaruf_set_erasure_coding_auto</a></div><div class="ttdeci">int32_t aaruf_set_erasure_coding_auto(void *context, uint8_t recovery_percent)</div><div class="ttdoc">Configure erasure coding from a desired recovery percentage.</div><div class="ttdef"><b>Definition</b> <a href="#l00193">erasure.c:193</a></div></div>
<div class="ttc" id="aerasure_8c_html_a676c380c73d5adf73afd7613ec06b29d"><div class="ttname"><a href="erasure_8c.html#a676c380c73d5adf73afd7613ec06b29d">ec_accumulate_data_block</a></div><div class="ttdeci">void ec_accumulate_data_block(aaruformat_context *ctx, const BlockHeader *block_header, const uint8_t *lzma_props, const uint8_t *payload, uint32_t payload_size, uint64_t file_offset)</div><div class="ttdoc">Accumulate parity for a data block that was just written to disk.</div><div class="ttdef"><b>Definition</b> <a href="#l00228">erasure.c:228</a></div></div>
<div class="ttc" id="aerasure_8c_html_a7a9ac507738cdf72e951f152edd4d233"><div class="ttname"><a href="erasure_8c.html#a7a9ac507738cdf72e951f152edd4d233">ec_recover_data_block</a></div><div class="ttdeci">int32_t ec_recover_data_block(aaruformat_context *ctx, uint64_t block_offset, uint64_t offset, uint8_t *data, uint32_t *length, uint8_t sector_status)</div><div class="ttdoc">Attempt to recover a data block that failed decompression or CRC verification.</div><div class="ttdef"><b>Definition</b> <a href="#l01145">erasure.c:1145</a></div></div>
<div class="ttc" id="aerasure_8c_html_a8b0f3ab93ca60ce00321ca28c2484c7c"><div class="ttname"><a href="erasure_8c.html#a8b0f3ab93ca60ce00321ca28c2484c7c">aaruf_set_erasure_coding</a></div><div class="ttdeci">int32_t aaruf_set_erasure_coding(void *context, uint8_t algorithm, uint16_t K, uint16_t M)</div><div class="ttdoc">Configure erasure coding for a newly created image.</div><div class="ttdef"><b>Definition</b> <a href="#l00082">erasure.c:82</a></div></div>
<div class="ttc" id="aerasure_8c_html_aa258c90d05ad57fc4c378679e5187e48"><div class="ttname"><a href="erasure_8c.html#aa258c90d05ad57fc4c378679e5187e48">ec_flush_data_stripe</a></div><div class="ttdeci">void ec_flush_data_stripe(aaruformat_context *ctx, uint32_t slot)</div><div class="ttdoc">Write M parity blocks for a completed data stripe slot and record the stripe descriptor.</div><div class="ttdef"><b>Definition</b> <a href="#l00304">erasure.c:304</a></div></div>
<div class="ttc" id="aerasure_8c_html_ae5fe558b49013df6e932278061a2ab53"><div class="ttname"><a href="erasure_8c.html#ae5fe558b49013df6e932278061a2ab53">ec_free</a></div><div class="ttdeci">void ec_free(aaruformat_context *ctx)</div><div class="ttdoc">Free all erasure coding state from the context.</div><div class="ttdef"><b>Definition</b> <a href="#l00876">erasure.c:876</a></div></div>
<div class="ttc" id="aerasure_8c_html_aed80b4dc1f360dbac00a5f73d350bf1a"><div class="ttname"><a href="erasure_8c.html#aed80b4dc1f360dbac00a5f73d350bf1a">ec_write_batch_parity</a></div><div class="ttdeci">static void ec_write_batch_parity(aaruformat_context *ctx, const uint64_t *offsets, const uint32_t *sizes, uint32_t block_count, uint8_t group_type, uint16_t parity_data_type, uint8_t **out_desc, size_t *out_desc_len, StripeGroupDescriptor *out_group)</div><div class="ttdoc">Compute and write batch parity for a set of blocks already on disk.</div><div class="ttdef"><b>Definition</b> <a href="#l00495">erasure.c:495</a></div></div>
<div class="ttc" id="aerasure_8h_html"><div class="ttname"><a href="erasure_8h.html">erasure.h</a></div><div class="ttdoc">On-disk structures for erasure coding recovery data.</div></div>
<div class="ttc" id="aerrors_8h_html"><div class="ttname"><a href="errors_8h.html">errors.h</a></div><div class="ttdoc">Public error and status code definitions for libaaruformat.</div></div>
<div class="ttc" id="aerrors_8h_html_a1d6e49f7e8a1fa489efa0a582e90b5de"><div class="ttname"><a href="errors_8h.html#a1d6e49f7e8a1fa489efa0a582e90b5de">AARUF_STATUS_OK</a></div><div class="ttdeci">#define AARUF_STATUS_OK</div><div class="ttdoc">Sector present and read without uncorrectable errors.</div><div class="ttdef"><b>Definition</b> <a href="errors_8h_source.html#l00081">errors.h:81</a></div></div>
<div class="ttc" id="aerrors_8h_html_a1df49eaa19eaa14891b6aaab966a9bc6"><div class="ttname"><a href="errors_8h.html#a1df49eaa19eaa14891b6aaab966a9bc6">AARUF_READ_ONLY</a></div><div class="ttdeci">#define AARUF_READ_ONLY</div><div class="ttdoc">Operation requires write mode but context is read-only.</div><div class="ttdef"><b>Definition</b> <a href="errors_8h_source.html#l00061">errors.h:61</a></div></div>
<div class="ttc" id="aerrors_8h_html_a35a771e3648bf971a004d4b2be9b5ec4"><div class="ttname"><a href="errors_8h.html#a35a771e3648bf971a004d4b2be9b5ec4">AARUF_ERROR_NOT_ENOUGH_MEMORY</a></div><div class="ttdeci">#define AARUF_ERROR_NOT_ENOUGH_MEMORY</div><div class="ttdoc">Memory allocation failure (critical).</div><div class="ttdef"><b>Definition</b> <a href="errors_8h_source.html#l00048">errors.h:48</a></div></div>
<div class="ttc" id="aerrors_8h_html_a8fc3ecb14777e72bebad62084b6caf16"><div class="ttname"><a href="errors_8h.html#a8fc3ecb14777e72bebad62084b6caf16">AARUF_ERROR_INCORRECT_DATA_SIZE</a></div><div class="ttdeci">#define AARUF_ERROR_INCORRECT_DATA_SIZE</div><div class="ttdoc">Data size does not match expected size.</div><div class="ttdef"><b>Definition</b> <a href="errors_8h_source.html#l00065">errors.h:65</a></div></div>
<div class="ttc" id="aerrors_8h_html_ac9f4e38e8d5a1f940c9cd0c7f6788c37"><div class="ttname"><a href="errors_8h.html#ac9f4e38e8d5a1f940c9cd0c7f6788c37">AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</a></div><div class="ttdeci">#define AARUF_ERROR_CANNOT_DECOMPRESS_BLOCK</div><div class="ttdoc">Decompression routine failed or size mismatch.</div><div class="ttdef"><b>Definition</b> <a href="errors_8h_source.html#l00056">errors.h:56</a></div></div>
<div class="ttc" id="agf256_8h_html"><div class="ttname"><a href="gf256_8h.html">gf256.h</a></div></div>
<div class="ttc" id="aindex_8h_html"><div class="ttname"><a href="index_8h.html">index.h</a></div><div class="ttdoc">On‑disk index block header and entry structures (versions 1, 2 and 3).</div></div>
<div class="ttc" id="ainternal_8h_html"><div class="ttname"><a href="internal_8h.html">internal.h</a></div></div>
<div class="ttc" id="ainternal_8h_html_a60c57e3b2e8e233d0be91f3690bf077c"><div class="ttname"><a href="internal_8h.html#a60c57e3b2e8e233d0be91f3690bf077c">aaruf_fseek</a></div><div class="ttdeci">static int aaruf_fseek(FILE *stream, aaru_off_t offset, int origin)</div><div class="ttdef"><b>Definition</b> <a href="internal_8h_source.html#l00046">internal.h:46</a></div></div>
<div class="ttc" id="ainternal_8h_html_a697ee4ab2c7adc710e56b0ef868596d7"><div class="ttname"><a href="internal_8h.html#a697ee4ab2c7adc710e56b0ef868596d7">aaruf_ftell</a></div><div class="ttdeci">static aaru_off_t aaruf_ftell(FILE *stream)</div><div class="ttdef"><b>Definition</b> <a href="internal_8h_source.html#l00052">internal.h:52</a></div></div>
<div class="ttc" id="ainternal_8h_html_a96247194f6c1e4090020e2a3691f8c9d"><div class="ttname"><a href="internal_8h.html#a96247194f6c1e4090020e2a3691f8c9d">LZMA_THREADS</a></div><div class="ttdeci">#define LZMA_THREADS(ctx)</div><div class="ttdoc">Clamp num_threads to LZMA&#39;s valid range [1, 2].</div><div class="ttdef"><b>Definition</b> <a href="internal_8h_source.html#l00023">internal.h:23</a></div></div>
<div class="ttc" id="ainternal_8h_html_afb4a123eeae51c668333248fb666e0f2"><div class="ttname"><a href="internal_8h.html#afb4a123eeae51c668333248fb666e0f2">aaru_off_t</a></div><div class="ttdeci">int64_t aaru_off_t</div><div class="ttdef"><b>Definition</b> <a href="internal_8h_source.html#l00042">internal.h:42</a></div></div>
<div class="ttc" id="alog_8h_html"><div class="ttname"><a href="log_8h.html">log.h</a></div></div>
<div class="ttc" id="alog_8h_html_a21cc0459b78d5f2d7bd737e5aae1278a"><div class="ttname"><a href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a></div><div class="ttdeci">#define TRACE(fmt,...)</div><div class="ttdef"><b>Definition</b> <a href="log_8h_source.html#l00025">log.h:25</a></div></div>
<div class="ttc" id="alru_8h_html_a0735969939ca80db3fe439ed92b787bb"><div class="ttname"><a href="lru_8h.html#a0735969939ca80db3fe439ed92b787bb">add_to_cache_uint64</a></div><div class="ttdeci">void add_to_cache_uint64(struct CacheHeader *cache, uint64_t key, void *value)</div><div class="ttdoc">Adds a value to the cache with a uint64_t key, evicting LRU if full.</div><div class="ttdef"><b>Definition</b> <a href="lru_8c_source.html#l00048">lru.c:48</a></div></div>
<div class="ttc" id="areed__solomon_8c_html_a5eed1476ef3e8666f011b529337b8518"><div class="ttname"><a href="reed__solomon_8c.html#a5eed1476ef3e8666f011b529337b8518">rs_free</a></div><div class="ttdeci">void rs_free(rs_context *ctx)</div><div class="ttdoc">Free a Reed-Solomon codec context.</div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00201">reed_solomon.c:201</a></div></div>
<div class="ttc" id="areed__solomon_8c_html_a68a7b13ef6443640abc2818a3bd7d5bf"><div class="ttname"><a href="reed__solomon_8c.html#a68a7b13ef6443640abc2818a3bd7d5bf">rs_create</a></div><div class="ttdeci">rs_context * rs_create(uint16_t K, uint16_t M)</div><div class="ttdoc">Create a Reed-Solomon codec for RS(K, M) over GF(2^8).</div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00150">reed_solomon.c:150</a></div></div>
<div class="ttc" id="areed__solomon_8c_html_ab02dd67e8f4b96de007048f30649adb1"><div class="ttname"><a href="reed__solomon_8c.html#ab02dd67e8f4b96de007048f30649adb1">rs_encode_incremental</a></div><div class="ttdeci">void rs_encode_incremental(uint8_t coeff, const uint8_t *data, uint8_t *parity, size_t shard_size)</div><div class="ttdoc">Incrementally accumulate one data shard&#39;s contribution to one parity shard.</div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00213">reed_solomon.c:213</a></div></div>
<div class="ttc" id="areed__solomon_8c_html_ada549b6a6028807b96d975bba70bea2d"><div class="ttname"><a href="reed__solomon_8c.html#ada549b6a6028807b96d975bba70bea2d">rs_get_coefficient</a></div><div class="ttdeci">uint8_t rs_get_coefficient(const rs_context *ctx, uint16_t m, uint16_t k)</div><div class="ttdoc">Get the generator matrix coefficient for parity shard m, data shard k.</div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00208">reed_solomon.c:208</a></div></div>
<div class="ttc" id="areed__solomon_8c_html_aea0122b72cfa6f77a4751d5466e73024"><div class="ttname"><a href="reed__solomon_8c.html#aea0122b72cfa6f77a4751d5466e73024">rs_decode</a></div><div class="ttdeci">int rs_decode(const rs_context *ctx, uint8_t **shards, const uint8_t *present, size_t shard_size)</div><div class="ttdoc">Decode (reconstruct) erased shards.</div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00218">reed_solomon.c:218</a></div></div>
<div class="ttc" id="areed__solomon_8h_html"><div class="ttname"><a href="reed__solomon_8h.html">reed_solomon.h</a></div></div>
<div class="ttc" id="asha256_8c_html_a22c6551e88df4c5c42fce3d0641adb64"><div class="ttname"><a href="sha256_8c.html#a22c6551e88df4c5c42fce3d0641adb64">K</a></div><div class="ttdeci">static const uint32_t K[64]</div><div class="ttdef"><b>Definition</b> <a href="sha256_8c_source.html#l00031">sha256.c:31</a></div></div>
<div class="ttc" id="astructAaruHeaderV2_html"><div class="ttname"><a href="structAaruHeaderV2.html">AaruHeaderV2</a></div><div class="ttdoc">Version 2 container header with GUID, alignment shifts, and feature negotiation bitmaps.</div><div class="ttdef"><b>Definition</b> <a href="header_8h_source.html#l00106">header.h:107</a></div></div>
<div class="ttc" id="astructAaruHeaderV2_html_a4ec4b1d593f5a0af19f6d7b8eaeada40"><div class="ttname"><a href="structAaruHeaderV2.html#a4ec4b1d593f5a0af19f6d7b8eaeada40">AaruHeaderV2::indexOffset</a></div><div class="ttdeci">uint64_t indexOffset</div><div class="ttdoc">Absolute byte offset to primary index block (MUST be &gt; 0; 0 =&gt; corrupt/unreadable).</div><div class="ttdef"><b>Definition</b> <a href="header_8h_source.html#l00115">header.h:115</a></div></div>
<div class="ttc" id="astructAaruHeaderV2_html_a9dae72bee3d161760dbbe389e4a70444"><div class="ttname"><a href="structAaruHeaderV2.html#a9dae72bee3d161760dbbe389e4a70444">AaruHeaderV2::featureCompatibleRo</a></div><div class="ttdeci">uint64_t featureCompatibleRo</div><div class="ttdoc">Feature bits: unimplemented -&gt; degrade to read-only access.</div><div class="ttdef"><b>Definition</b> <a href="header_8h_source.html#l00122">header.h:122</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html"><div class="ttname"><a href="structAaruRecoveryFooter.html">AaruRecoveryFooter</a></div><div class="ttdoc">Recovery footer written at the very end of the file (last 160 bytes).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00116">erasure.h:117</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html_a2a0e7425f369422c197cda6b4ff56033"><div class="ttname"><a href="structAaruRecoveryFooter.html#a2a0e7425f369422c197cda6b4ff56033">AaruRecoveryFooter::headerCrc64</a></div><div class="ttdeci">uint64_t headerCrc64</div><div class="ttdoc">CRC64-ECMA of the original AaruHeaderV2 (128 bytes at offset 0).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00120">erasure.h:120</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html_a67e4601f7be9a5f7e84cb3adfb98e68a"><div class="ttname"><a href="structAaruRecoveryFooter.html#a67e4601f7be9a5f7e84cb3adfb98e68a">AaruRecoveryFooter::ecmbOffset</a></div><div class="ttdeci">uint64_t ecmbOffset</div><div class="ttdoc">Absolute file offset of the primary ECMB.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00118">erasure.h:118</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html_a8d65cec53b91b52d2bafb7e76eef818a"><div class="ttname"><a href="structAaruRecoveryFooter.html#a8d65cec53b91b52d2bafb7e76eef818a">AaruRecoveryFooter::footerMagic</a></div><div class="ttdeci">uint64_t footerMagic</div><div class="ttdoc">Must be AARU_RECOVERY_FOOTER_MAGIC (0x52464D4345525641).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00122">erasure.h:122</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html_ad3f4ad3842317379eea5ad1bd3335482"><div class="ttname"><a href="structAaruRecoveryFooter.html#ad3f4ad3842317379eea5ad1bd3335482">AaruRecoveryFooter::ecmbLength</a></div><div class="ttdeci">uint64_t ecmbLength</div><div class="ttdoc">Total on-disk size of the ECMB (header + payload).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00119">erasure.h:119</a></div></div>
<div class="ttc" id="astructAaruRecoveryFooter_html_afd53d818d8d4f4c23e4483bfea1701f5"><div class="ttname"><a href="structAaruRecoveryFooter.html#afd53d818d8d4f4c23e4483bfea1701f5">AaruRecoveryFooter::backupHeader</a></div><div class="ttdeci">AaruHeaderV2 backupHeader</div><div class="ttdoc">Complete copy of AaruHeaderV2 from file offset 0.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00121">erasure.h:121</a></div></div>
<div class="ttc" id="astructBlockHeader_html"><div class="ttname"><a href="structBlockHeader.html">BlockHeader</a></div><div class="ttdoc">Header preceding the compressed data payload of a data block (BlockType::DataBlock).</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00070">data.h:71</a></div></div>
<div class="ttc" id="astructBlockHeader_html_a0ee87beb4362823260f70a87ac17379f"><div class="ttname"><a href="structBlockHeader.html#a0ee87beb4362823260f70a87ac17379f">BlockHeader::cmpLength</a></div><div class="ttdeci">uint32_t cmpLength</div><div class="ttdoc">Size in bytes of the compressed payload immediately following this header.</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00076">data.h:76</a></div></div>
<div class="ttc" id="astructBlockHeader_html_a1f9f3204a10090709b28d0df4bb547e5"><div class="ttname"><a href="structBlockHeader.html#a1f9f3204a10090709b28d0df4bb547e5">BlockHeader::length</a></div><div class="ttdeci">uint32_t length</div><div class="ttdoc">Size in bytes of the uncompressed payload resulting after decompression.</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00077">data.h:77</a></div></div>
<div class="ttc" id="astructBlockHeader_html_a3b03f118fb2dc3dcef3f87a82238e358"><div class="ttname"><a href="structBlockHeader.html#a3b03f118fb2dc3dcef3f87a82238e358">BlockHeader::identifier</a></div><div class="ttdeci">uint32_t identifier</div><div class="ttdoc">Block identifier, must be BlockType::DataBlock.</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00072">data.h:72</a></div></div>
<div class="ttc" id="astructBlockHeader_html_a5bd50f95c8c1f91e5013a1a154690beb"><div class="ttname"><a href="structBlockHeader.html#a5bd50f95c8c1f91e5013a1a154690beb">BlockHeader::sectorSize</a></div><div class="ttdeci">uint32_t sectorSize</div><div class="ttdoc">Size in bytes of each logical sector represented in this block.</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00075">data.h:75</a></div></div>
<div class="ttc" id="astructBlockHeader_html_a8ff40eae6c49f0d9b49825f75e1e2bf8"><div class="ttname"><a href="structBlockHeader.html#a8ff40eae6c49f0d9b49825f75e1e2bf8">BlockHeader::cmpCrc64</a></div><div class="ttdeci">uint64_t cmpCrc64</div><div class="ttdoc">CRC64-ECMA of the compressed payload (cmpLength bytes).</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00078">data.h:78</a></div></div>
<div class="ttc" id="astructBlockHeader_html_ab4d9e3a871e0c7f12a881017dac4ca12"><div class="ttname"><a href="structBlockHeader.html#ab4d9e3a871e0c7f12a881017dac4ca12">BlockHeader::crc64</a></div><div class="ttdeci">uint64_t crc64</div><div class="ttdoc">CRC64-ECMA of the uncompressed payload (length bytes).</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00079">data.h:79</a></div></div>
<div class="ttc" id="astructBlockHeader_html_ac31ad48f3362a43175c94ec2e30662ad"><div class="ttname"><a href="structBlockHeader.html#ac31ad48f3362a43175c94ec2e30662ad">BlockHeader::type</a></div><div class="ttdeci">uint16_t type</div><div class="ttdoc">Logical data classification (value from DataType).</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00073">data.h:73</a></div></div>
<div class="ttc" id="astructBlockHeader_html_ad68963422fd2a5f6d0e0be751cbef559"><div class="ttname"><a href="structBlockHeader.html#ad68963422fd2a5f6d0e0be751cbef559">BlockHeader::compression</a></div><div class="ttdeci">uint16_t compression</div><div class="ttdoc">Compression algorithm used (value from CompressionType).</div><div class="ttdef"><b>Definition</b> <a href="data_8h_source.html#l00074">data.h:74</a></div></div>
<div class="ttc" id="astructDdtHeader2_html"><div class="ttname"><a href="structDdtHeader2.html">DdtHeader2</a></div><div class="ttdoc">Header preceding a version 2 hierarchical deduplication table.</div><div class="ttdef"><b>Definition</b> <a href="ddt_8h_source.html#l00141">ddt.h:142</a></div></div>
<div class="ttc" id="astructDdtHeader2_html_aa67b097c3a20f926ede495d27152f1c0"><div class="ttname"><a href="structDdtHeader2.html#aa67b097c3a20f926ede495d27152f1c0">DdtHeader2::blockAlignmentShift</a></div><div class="ttdeci">uint8_t blockAlignmentShift</div><div class="ttdoc">2^blockAlignmentShift = block alignment boundary in bytes.</div><div class="ttdef"><b>Definition</b> <a href="ddt_8h_source.html#l00154">ddt.h:154</a></div></div>
<div class="ttc" id="astructDdtHeader2_html_ad9a2beb3a79bc6c239ba04fe341e0cde"><div class="ttname"><a href="structDdtHeader2.html#ad9a2beb3a79bc6c239ba04fe341e0cde">DdtHeader2::dataShift</a></div><div class="ttdeci">uint8_t dataShift</div><div class="ttdoc">2^dataShift = sectors represented per increment in blockIndex field.</div><div class="ttdef"><b>Definition</b> <a href="ddt_8h_source.html#l00155">ddt.h:155</a></div></div>
<div class="ttc" id="astructDdtHeader2_html_aee50fc92a9151bd352808b28bccd5045"><div class="ttname"><a href="structDdtHeader2.html#aee50fc92a9151bd352808b28bccd5045">DdtHeader2::cmpLength</a></div><div class="ttdeci">uint64_t cmpLength</div><div class="ttdoc">Compressed payload size in bytes.</div><div class="ttdef"><b>Definition</b> <a href="ddt_8h_source.html#l00159">ddt.h:159</a></div></div>
<div class="ttc" id="astructEcBlockLookupEntry_html"><div class="ttname"><a href="structEcBlockLookupEntry.html">EcBlockLookupEntry</a></div><div class="ttdoc">Hash table entry mapping block file offset -&gt; stripe index + position.</div><div class="ttdef"><b>Definition</b> <a href="#l00054">erasure.c:55</a></div></div>
<div class="ttc" id="astructEcBlockLookupEntry_html_a13a8928f4f9cc3d0d7a30b1d0530c016"><div class="ttname"><a href="structEcBlockLookupEntry.html#a13a8928f4f9cc3d0d7a30b1d0530c016">EcBlockLookupEntry::block_offset</a></div><div class="ttdeci">uint64_t block_offset</div><div class="ttdoc">Key: file offset of the data block.</div><div class="ttdef"><b>Definition</b> <a href="#l00056">erasure.c:56</a></div></div>
<div class="ttc" id="astructEcBlockLookupEntry_html_a8645b89803f927a7608a6f8d30d74292"><div class="ttname"><a href="structEcBlockLookupEntry.html#a8645b89803f927a7608a6f8d30d74292">EcBlockLookupEntry::position</a></div><div class="ttdeci">uint16_t position</div><div class="ttdoc">Position within the stripe (0..actual_k-1).</div><div class="ttdef"><b>Definition</b> <a href="#l00058">erasure.c:58</a></div></div>
<div class="ttc" id="astructEcBlockLookupEntry_html_aafe5aa886cf56f4dbcc9c7426792e61c"><div class="ttname"><a href="structEcBlockLookupEntry.html#aafe5aa886cf56f4dbcc9c7426792e61c">EcBlockLookupEntry::hh</a></div><div class="ttdeci">UT_hash_handle hh</div><div class="ttdef"><b>Definition</b> <a href="#l00059">erasure.c:59</a></div></div>
<div class="ttc" id="astructEcBlockLookupEntry_html_aedeac38371118113a77e02cc65512320"><div class="ttname"><a href="structEcBlockLookupEntry.html#aedeac38371118113a77e02cc65512320">EcBlockLookupEntry::stripe_index</a></div><div class="ttdeci">uint32_t stripe_index</div><div class="ttdoc">Index into ec_read_stripes array.</div><div class="ttdef"><b>Definition</b> <a href="#l00057">erasure.c:57</a></div></div>
<div class="ttc" id="astructEcReadStripe_html"><div class="ttname"><a href="structEcReadStripe.html">EcReadStripe</a></div><div class="ttdoc">In-memory representation of one data stripe (parsed from ECMB).</div><div class="ttdef"><b>Definition</b> <a href="#l00046">erasure.c:47</a></div></div>
<div class="ttc" id="astructEcReadStripe_html_a196073177bb5753b30b17ad495af7b97"><div class="ttname"><a href="structEcReadStripe.html#a196073177bb5753b30b17ad495af7b97">EcReadStripe::data_entries</a></div><div class="ttdeci">StripeDataBlockEntry * data_entries</div><div class="ttdoc">Array of actual_k entries.</div><div class="ttdef"><b>Definition</b> <a href="#l00049">erasure.c:49</a></div></div>
<div class="ttc" id="astructEcReadStripe_html_a80b525ebfe07bff2cb08bf97ce633e2f"><div class="ttname"><a href="structEcReadStripe.html#a80b525ebfe07bff2cb08bf97ce633e2f">EcReadStripe::actual_k</a></div><div class="ttdeci">uint16_t actual_k</div><div class="ttdoc">Number of data blocks in this stripe.</div><div class="ttdef"><b>Definition</b> <a href="#l00048">erasure.c:48</a></div></div>
<div class="ttc" id="astructEcReadStripe_html_ac88d41411a685f4b7fbecb69d179ec3f"><div class="ttname"><a href="structEcReadStripe.html#ac88d41411a685f4b7fbecb69d179ec3f">EcReadStripe::parity_offsets</a></div><div class="ttdeci">uint64_t * parity_offsets</div><div class="ttdoc">Array of M parity block file offsets.</div><div class="ttdef"><b>Definition</b> <a href="#l00050">erasure.c:50</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html"><div class="ttname"><a href="structErasureCodingMapHeader.html">ErasureCodingMapHeader</a></div><div class="ttdoc">Header for the Erasure Coding Map Block (BlockType::ErasureCodingMapBlock).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00049">erasure.h:50</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_a174d1be87a00bda3012715de76423ec4"><div class="ttname"><a href="structErasureCodingMapHeader.html#a174d1be87a00bda3012715de76423ec4">ErasureCodingMapHeader::algorithm</a></div><div class="ttdeci">uint8_t algorithm</div><div class="ttdoc">Erasure coding algorithm (ErasureCodingAlgorithm).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00052">erasure.h:52</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_a2aa7763da110a8e7550e61bd6110f83d"><div class="ttname"><a href="structErasureCodingMapHeader.html#a2aa7763da110a8e7550e61bd6110f83d">ErasureCodingMapHeader::cmpLength</a></div><div class="ttdeci">uint64_t cmpLength</div><div class="ttdoc">Size in bytes of the compressed mapping payload.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00055">erasure.h:55</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_aa686c5c90093d0ba86657c1f15f64a2d"><div class="ttname"><a href="structErasureCodingMapHeader.html#aa686c5c90093d0ba86657c1f15f64a2d">ErasureCodingMapHeader::cmpCrc64</a></div><div class="ttdeci">uint64_t cmpCrc64</div><div class="ttdoc">CRC64-ECMA of the compressed mapping payload.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00057">erasure.h:57</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_aa883d1e565b1856a7a16b2fcf8ee8b7d"><div class="ttname"><a href="structErasureCodingMapHeader.html#aa883d1e565b1856a7a16b2fcf8ee8b7d">ErasureCodingMapHeader::crc64</a></div><div class="ttdeci">uint64_t crc64</div><div class="ttdoc">CRC64-ECMA of the uncompressed mapping payload.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00058">erasure.h:58</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_aaf860b67807c5bf871e52ae617a076ae"><div class="ttname"><a href="structErasureCodingMapHeader.html#aaf860b67807c5bf871e52ae617a076ae">ErasureCodingMapHeader::compression</a></div><div class="ttdeci">uint16_t compression</div><div class="ttdoc">Compression algorithm for the mapping payload (CompressionType).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00054">erasure.h:54</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_ac1cce17abac0be6beccb121d7a3b24b2"><div class="ttname"><a href="structErasureCodingMapHeader.html#ac1cce17abac0be6beccb121d7a3b24b2">ErasureCodingMapHeader::identifier</a></div><div class="ttdeci">uint32_t identifier</div><div class="ttdoc">Block identifier, must be BlockType::ErasureCodingMapBlock (0x424D4345).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00051">erasure.h:51</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_accae80e978eeccc7c026eb5ade721aae"><div class="ttname"><a href="structErasureCodingMapHeader.html#accae80e978eeccc7c026eb5ade721aae">ErasureCodingMapHeader::stripeGroupCount</a></div><div class="ttdeci">uint8_t stripeGroupCount</div><div class="ttdoc">Number of stripe groups in payload (typically 5).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00053">erasure.h:53</a></div></div>
<div class="ttc" id="astructErasureCodingMapHeader_html_ad52f12a467a76189e31b1c01fc0e6e65"><div class="ttname"><a href="structErasureCodingMapHeader.html#ad52f12a467a76189e31b1c01fc0e6e65">ErasureCodingMapHeader::length</a></div><div class="ttdeci">uint64_t length</div><div class="ttdoc">Size in bytes of the uncompressed mapping payload.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00056">erasure.h:56</a></div></div>
<div class="ttc" id="astructIndexEntry_html"><div class="ttname"><a href="structIndexEntry.html">IndexEntry</a></div><div class="ttdoc">Single index entry describing a block&#39;s type, (optional) data classification, and file offset.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00108">index.h:109</a></div></div>
<div class="ttc" id="astructIndexEntry_html_a4b5c7115ac83019c3f77c6f047e5f75e"><div class="ttname"><a href="structIndexEntry.html#a4b5c7115ac83019c3f77c6f047e5f75e">IndexEntry::blockType</a></div><div class="ttdeci">uint32_t blockType</div><div class="ttdoc">Block identifier of the referenced block (value from BlockType).</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00110">index.h:110</a></div></div>
<div class="ttc" id="astructIndexEntry_html_a854951a64192d7e4cdcfa6dd6fd2b3ea"><div class="ttname"><a href="structIndexEntry.html#a854951a64192d7e4cdcfa6dd6fd2b3ea">IndexEntry::offset</a></div><div class="ttdeci">uint64_t offset</div><div class="ttdoc">Absolute byte offset in the image where the referenced block header begins.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00112">index.h:112</a></div></div>
<div class="ttc" id="astructIndexEntry_html_ae5d35082a756e0388efbf5fabbe93d10"><div class="ttname"><a href="structIndexEntry.html#ae5d35082a756e0388efbf5fabbe93d10">IndexEntry::dataType</a></div><div class="ttdeci">uint16_t dataType</div><div class="ttdoc">Data classification (value from DataType) or unused for untyped blocks.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00111">index.h:111</a></div></div>
<div class="ttc" id="astructIndexHeader3_html"><div class="ttname"><a href="structIndexHeader3.html">IndexHeader3</a></div><div class="ttdoc">Index header (version 3) adding hierarchical chaining (identifier == IndexBlock3).</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00092">index.h:93</a></div></div>
<div class="ttc" id="astructIndexHeader3_html_af05fe8e08e929aa0eab6b74638f22b74"><div class="ttname"><a href="structIndexHeader3.html#af05fe8e08e929aa0eab6b74638f22b74">IndexHeader3::entries</a></div><div class="ttdeci">uint64_t entries</div><div class="ttdoc">Number of IndexEntry records that follow in this (sub)index block.</div><div class="ttdef"><b>Definition</b> <a href="index_8h_source.html#l00095">index.h:95</a></div></div>
<div class="ttc" id="astructStripeDataBlockEntry_html"><div class="ttname"><a href="structStripeDataBlockEntry.html">StripeDataBlockEntry</a></div><div class="ttdoc">Per-data-block metadata within a stripe descriptor.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00087">erasure.h:88</a></div></div>
<div class="ttc" id="astructStripeDataBlockEntry_html_a3351d43103f9f7fbd9f4486161a1656d"><div class="ttname"><a href="structStripeDataBlockEntry.html#a3351d43103f9f7fbd9f4486161a1656d">StripeDataBlockEntry::onDiskSize</a></div><div class="ttdeci">uint32_t onDiskSize</div><div class="ttdoc">Actual on-disk bytes (sizeof(header) + cmpLength).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00090">erasure.h:90</a></div></div>
<div class="ttc" id="astructStripeDataBlockEntry_html_a7aac714b3d98b543e792537fd7c8d3fc"><div class="ttname"><a href="structStripeDataBlockEntry.html#a7aac714b3d98b543e792537fd7c8d3fc">StripeDataBlockEntry::offset</a></div><div class="ttdeci">uint64_t offset</div><div class="ttdoc">Absolute file offset of the block.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00089">erasure.h:89</a></div></div>
<div class="ttc" id="astructStripeDataBlockEntry_html_af85494afc772fe1469927c826e24a1b2"><div class="ttname"><a href="structStripeDataBlockEntry.html#af85494afc772fe1469927c826e24a1b2">StripeDataBlockEntry::shardCrc64</a></div><div class="ttdeci">uint64_t shardCrc64</div><div class="ttdoc">CRC64-ECMA of on-disk bytes zero-padded to shardSize.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00091">erasure.h:91</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html"><div class="ttname"><a href="structStripeGroupDescriptor.html">StripeGroupDescriptor</a></div><div class="ttdoc">Describes one protection group within the ECMB payload.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00068">erasure.h:69</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_a2a457b42f8562c872b0b7e0f1b054ef5"><div class="ttname"><a href="structStripeGroupDescriptor.html#a2a457b42f8562c872b0b7e0f1b054ef5">StripeGroupDescriptor::shardSize</a></div><div class="ttdeci">uint32_t shardSize</div><div class="ttdoc">Fixed shard size in bytes (max possible on-disk block size for this group).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00073">erasure.h:73</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_a46b938eb0fea65843e741c2cc240d14b"><div class="ttname"><a href="structStripeGroupDescriptor.html#a46b938eb0fea65843e741c2cc240d14b">StripeGroupDescriptor::K</a></div><div class="ttdeci">uint16_t K</div><div class="ttdoc">Number of data blocks per stripe.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00071">erasure.h:71</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_a6093f8c41fb1aa55c8367e2a92fe9f7f"><div class="ttname"><a href="structStripeGroupDescriptor.html#a6093f8c41fb1aa55c8367e2a92fe9f7f">StripeGroupDescriptor::groupType</a></div><div class="ttdeci">uint8_t groupType</div><div class="ttdoc">Protection group type (ErasureCodingGroupType).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00070">erasure.h:70</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_a747366878bf9d2d68b37fddc30346546"><div class="ttname"><a href="structStripeGroupDescriptor.html#a747366878bf9d2d68b37fddc30346546">StripeGroupDescriptor::interleaveDepth</a></div><div class="ttdeci">uint16_t interleaveDepth</div><div class="ttdoc">Interleave depth D (K for full interleave, 1 for consecutive).</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00075">erasure.h:75</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_a9b737c4f6fda1894d51858d2a3d8d877"><div class="ttname"><a href="structStripeGroupDescriptor.html#a9b737c4f6fda1894d51858d2a3d8d877">StripeGroupDescriptor::stripeCount</a></div><div class="ttdeci">uint32_t stripeCount</div><div class="ttdoc">Number of stripes in this group.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00074">erasure.h:74</a></div></div>
<div class="ttc" id="astructStripeGroupDescriptor_html_afd47dcff7fe194084c22dab9a6866c8b"><div class="ttname"><a href="structStripeGroupDescriptor.html#afd47dcff7fe194084c22dab9a6866c8b">StripeGroupDescriptor::M</a></div><div class="ttdeci">uint16_t M</div><div class="ttdoc">Number of parity blocks per stripe.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00072">erasure.h:72</a></div></div>
<div class="ttc" id="astructStripeParityBlockEntry_html"><div class="ttname"><a href="structStripeParityBlockEntry.html">StripeParityBlockEntry</a></div><div class="ttdoc">Per-parity-block metadata within a stripe descriptor.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00098">erasure.h:99</a></div></div>
<div class="ttc" id="astructStripeParityBlockEntry_html_a4222801a62acbce61990ee79faf26050"><div class="ttname"><a href="structStripeParityBlockEntry.html#a4222801a62acbce61990ee79faf26050">StripeParityBlockEntry::offset</a></div><div class="ttdeci">uint64_t offset</div><div class="ttdoc">Absolute file offset of the parity DBLK.</div><div class="ttdef"><b>Definition</b> <a href="erasure_8h_source.html#l00100">erasure.h:100</a></div></div>
<div class="ttc" id="astructaaruformat__context_html"><div class="ttname"><a href="structaaruformat__context.html">aaruformat_context</a></div><div class="ttdoc">Master context representing an open or in‑creation Aaru image.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00174">context.h:175</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a0306814ea46f136a21ffdbf5504744d2"><div class="ttname"><a href="structaaruformat__context.html#a0306814ea46f136a21ffdbf5504744d2">aaruformat_context::ec_data_shard_crcs</a></div><div class="ttdeci">uint64_t * ec_data_shard_crcs</div><div class="ttdoc">Array of K * K CRC64 values for blocks in active stripes.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00387">context.h:387</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a04c5fb367458a6e9dd0a50b39f6edec2"><div class="ttname"><a href="structaaruformat__context.html#a04c5fb367458a6e9dd0a50b39f6edec2">aaruformat_context::user_data_ddt_header</a></div><div class="ttdeci">DdtHeader2 user_data_ddt_header</div><div class="ttdoc">Active user data DDT v2 header (primary table meta).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00192">context.h:192</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a0562ac6ba169471d3d83482342d68ff2"><div class="ttname"><a href="structaaruformat__context.html#a0562ac6ba169471d3d83482342d68ff2">aaruformat_context::ec_data_block_sizes</a></div><div class="ttdeci">uint32_t * ec_data_block_sizes</div><div class="ttdoc">Array of K * K actual on-disk sizes for blocks in active stripes.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00386">context.h:386</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a130daf19dbed426f1c4c6f82691bc054"><div class="ttname"><a href="structaaruformat__context.html#a130daf19dbed426f1c4c6f82691bc054">aaruformat_context::compression_enabled</a></div><div class="ttdeci">bool compression_enabled</div><div class="ttdoc">True if block compression enabled (writing path).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00304">context.h:304</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a231115c6a202af9b0b846dcd9894435d"><div class="ttname"><a href="structaaruformat__context.html#a231115c6a202af9b0b846dcd9894435d">aaruformat_context::ec_rs_ctx</a></div><div class="ttdeci">void * ec_rs_ctx</div><div class="ttdoc">rs_context* (opaque RS codec), NULL if EC disabled.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00383">context.h:383</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a25448606ea0870a817f4a2b6c94f7698"><div class="ttname"><a href="structaaruformat__context.html#a25448606ea0870a817f4a2b6c94f7698">aaruformat_context::ec_algorithm</a></div><div class="ttdeci">uint8_t ec_algorithm</div><div class="ttdoc">ErasureCodingAlgorithm (0=XOR, 1=RS-Vandermonde).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00379">context.h:379</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a3613b5ea23ce609b6d2c3a047692d455"><div class="ttname"><a href="structaaruformat__context.html#a3613b5ea23ce609b6d2c3a047692d455">aaruformat_context::ec_recovery_in_progress</a></div><div class="ttdeci">bool ec_recovery_in_progress</div><div class="ttdoc">Recursion guard for recovery (prevents infinite loops).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00398">context.h:398</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a3a12addf4a338cc04471709604d48ae1"><div class="ttname"><a href="structaaruformat__context.html#a3a12addf4a338cc04471709604d48ae1">aaruformat_context::block_header_cache</a></div><div class="ttdeci">struct CacheHeader block_header_cache</div><div class="ttdoc">LRU/Cache header for block headers.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00259">context.h:259</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a3dd804f91ba84019bd5a23226fa7d608"><div class="ttname"><a href="structaaruformat__context.html#a3dd804f91ba84019bd5a23226fa7d608">aaruformat_context::ec_data_shard_size</a></div><div class="ttdeci">uint32_t ec_data_shard_size</div><div class="ttdoc">Max on-disk block size for data blocks (fixed at creation).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00382">context.h:382</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a3e230f326ef10eae2a496ca4532c8143"><div class="ttname"><a href="structaaruformat__context.html#a3e230f326ef10eae2a496ca4532c8143">aaruformat_context::ec_read_stripe_count</a></div><div class="ttdeci">uint32_t ec_read_stripe_count</div><div class="ttdoc">Number of data stripes parsed from ECMB.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00395">context.h:395</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a58359ec8607d1d10e0af8699be238e77"><div class="ttname"><a href="structaaruformat__context.html#a58359ec8607d1d10e0af8699be238e77">aaruformat_context::block_cache</a></div><div class="ttdeci">struct CacheHeader block_cache</div><div class="ttdoc">LRU/Cache header for block payloads.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00260">context.h:260</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a63616c8450e9e1853e0645714fe310cb"><div class="ttname"><a href="structaaruformat__context.html#a63616c8450e9e1853e0645714fe310cb">aaruformat_context::dirty_index_block</a></div><div class="ttdeci">bool dirty_index_block</div><div class="ttdoc">True if index block should be written during close.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00345">context.h:345</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a670dec8d59407989fefc361dc26c6832"><div class="ttname"><a href="structaaruformat__context.html#a670dec8d59407989fefc361dc26c6832">aaruformat_context::header</a></div><div class="ttdeci">AaruHeaderV2 header</div><div class="ttdoc">Parsed container header (v2).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00178">context.h:178</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a682d900c0f7dc71bc4820e09609f1615"><div class="ttname"><a href="structaaruformat__context.html#a682d900c0f7dc71bc4820e09609f1615">aaruformat_context::ec_data_stripes</a></div><div class="ttdeci">UT_array * ec_data_stripes</div><div class="ttdoc">Completed data stripe descriptors (serialized to ECMB).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00390">context.h:390</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a6f61f9ea20f4e3b791a0d6388dd43651"><div class="ttname"><a href="structaaruformat__context.html#a6f61f9ea20f4e3b791a0d6388dd43651">aaruformat_context::is_writing</a></div><div class="ttdeci">bool is_writing</div><div class="ttdoc">True if context opened/created for writing.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00295">context.h:295</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a78edd22a0d4a0cbbbbdb783b3df4ba5a"><div class="ttname"><a href="structaaruformat__context.html#a78edd22a0d4a0cbbbbdb783b3df4ba5a">aaruformat_context::current_block_header</a></div><div class="ttdeci">BlockHeader current_block_header</div><div class="ttdoc">Header for block currently being assembled (write path).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00284">context.h:284</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a7dc0a0fe0bf6223ff4587fd01c360b76"><div class="ttname"><a href="structaaruformat__context.html#a7dc0a0fe0bf6223ff4587fd01c360b76">aaruformat_context::magic</a></div><div class="ttdeci">uint64_t magic</div><div class="ttdoc">File magic (AARU_MAGIC) post-open.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00177">context.h:177</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a939b702f75e80062bc635add4c3ab142"><div class="ttname"><a href="structaaruformat__context.html#a939b702f75e80062bc635add4c3ab142">aaruformat_context::next_block_position</a></div><div class="ttdeci">uint64_t next_block_position</div><div class="ttdoc">Absolute file offset where next block will be written.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00285">context.h:285</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a9a68ea472d082df95246171eaab070d0"><div class="ttname"><a href="structaaruformat__context.html#a9a68ea472d082df95246171eaab070d0">aaruformat_context::ec_data_block_offsets</a></div><div class="ttdeci">uint64_t * ec_data_block_offsets</div><div class="ttdoc">Array of K * K file offsets for blocks in active stripes.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00385">context.h:385</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a9b5df0512665a9b31fbfff6dc912b6eb"><div class="ttname"><a href="structaaruformat__context.html#a9b5df0512665a9b31fbfff6dc912b6eb">aaruformat_context::ec_total_data_blocks</a></div><div class="ttdeci">uint32_t ec_total_data_blocks</div><div class="ttdoc">Total data blocks written (counter for round-robin assignment).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00389">context.h:389</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a9c7a7eafdd48b8d0cbdbb46d28cfceaa"><div class="ttname"><a href="structaaruformat__context.html#a9c7a7eafdd48b8d0cbdbb46d28cfceaa">aaruformat_context::ec_M</a></div><div class="ttdeci">uint16_t ec_M</div><div class="ttdoc">Parity blocks per stripe.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00381">context.h:381</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a9cf4d3d7117a279de4c178eb7af217d6"><div class="ttname"><a href="structaaruformat__context.html#a9cf4d3d7117a279de4c178eb7af217d6">aaruformat_context::has_zstd_blocks</a></div><div class="ttdeci">bool has_zstd_blocks</div><div class="ttdoc">True if any block was actually written with Zstandard compression.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00306">context.h:306</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a9f694f685458e2142e116da91727de38"><div class="ttname"><a href="structaaruformat__context.html#a9f694f685458e2142e116da91727de38">aaruformat_context::zstd_level</a></div><div class="ttdeci">int zstd_level</div><div class="ttdoc">Zstandard compression level (writing path, default 19).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00307">context.h:307</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aa8301e298630675bb060fde6fa6e401a"><div class="ttname"><a href="structaaruformat__context.html#aa8301e298630675bb060fde6fa6e401a">aaruformat_context::ec_data_stripe_counts</a></div><div class="ttdeci">uint16_t * ec_data_stripe_counts</div><div class="ttdoc">Array of K: blocks accumulated per stripe slot.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00388">context.h:388</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aad3acc958f1b3e63fdeacfd349aff736"><div class="ttname"><a href="structaaruformat__context.html#aad3acc958f1b3e63fdeacfd349aff736">aaruformat_context::ec_read_stripes</a></div><div class="ttdeci">void * ec_read_stripes</div><div class="ttdoc">Parsed EcReadStripe array for data group, NULL if no ECMB.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00394">context.h:394</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aafe10b9028dcb7a53c5b05b8db2b2ba8"><div class="ttname"><a href="structaaruformat__context.html#aafe10b9028dcb7a53c5b05b8db2b2ba8">aaruformat_context::ec_block_lookup</a></div><div class="ttdeci">void * ec_block_lookup</div><div class="ttdoc">uthash: block file offset → stripe index + position.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00396">context.h:396</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ab516fae594bde4f76b75488d0a3ca3a8"><div class="ttname"><a href="structaaruformat__context.html#ab516fae594bde4f76b75488d0a3ca3a8">aaruformat_context::imageStream</a></div><div class="ttdeci">FILE * imageStream</div><div class="ttdoc">Underlying FILE* stream (binary mode).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00179">context.h:179</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ab97a719a5b4186695b67143db7376152"><div class="ttname"><a href="structaaruformat__context.html#ab97a719a5b4186695b67143db7376152">aaruformat_context::index_entries</a></div><div class="ttdeci">UT_array * index_entries</div><div class="ttdoc">Flattened index entries (UT_array of IndexEntry).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00255">context.h:255</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_abd11e50d05e8f007bf084a586bad0fe9"><div class="ttname"><a href="structaaruformat__context.html#abd11e50d05e8f007bf084a586bad0fe9">aaruformat_context::num_threads</a></div><div class="ttdeci">int num_threads</div><div class="ttdoc">Compression worker threads (1 = single-threaded, default).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00308">context.h:308</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ac08b99bdbcd7a208e6893d59f0e02a17"><div class="ttname"><a href="structaaruformat__context.html#ac08b99bdbcd7a208e6893d59f0e02a17">aaruformat_context::ec_enabled</a></div><div class="ttdeci">bool ec_enabled</div><div class="ttdoc">True if erasure coding is active.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00391">context.h:391</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ac11104550371641bb95b74c83ed8b748"><div class="ttname"><a href="structaaruformat__context.html#ac11104550371641bb95b74c83ed8b748">aaruformat_context::ec_data_parity</a></div><div class="ttdeci">uint8_t ** ec_data_parity</div><div class="ttdoc">Array of K * M parity buffers (interleaved stripe slots).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00384">context.h:384</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ad027cde303f65d3ccc5b18a879692782"><div class="ttname"><a href="structaaruformat__context.html#ad027cde303f65d3ccc5b18a879692782">aaruformat_context::use_zstd</a></div><div class="ttdeci">bool use_zstd</div><div class="ttdoc">Use Zstandard instead of LZMA for data blocks.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00305">context.h:305</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_adc67f6a6ef1602648bb064d47eb1fe88"><div class="ttname"><a href="structaaruformat__context.html#adc67f6a6ef1602648bb064d47eb1fe88">aaruformat_context::lzma_dict_size</a></div><div class="ttdeci">uint32_t lzma_dict_size</div><div class="ttdoc">LZMA dictionary size (writing path).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00302">context.h:302</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aece272b6ba4a3451e5f56be5a1e5c7c5"><div class="ttname"><a href="structaaruformat__context.html#aece272b6ba4a3451e5f56be5a1e5c7c5">aaruformat_context::ec_K</a></div><div class="ttdeci">uint16_t ec_K</div><div class="ttdoc">Data blocks per stripe.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00380">context.h:380</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_af7b4e0a80f76581b0cb1440d9a689f0f"><div class="ttname"><a href="structaaruformat__context.html#af7b4e0a80f76581b0cb1440d9a689f0f">aaruformat_context::ec_recovery_available</a></div><div class="ttdeci">bool ec_recovery_available</div><div class="ttdoc">True if ECMB loaded and recovery is possible.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00397">context.h:397</a></div></div>
<div class="ttc" id="astructrs__context_html"><div class="ttname"><a href="structrs__context.html">rs_context</a></div><div class="ttdef"><b>Definition</b> <a href="reed__solomon_8c_source.html#l00043">reed_solomon.c:44</a></div></div>
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