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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="zstd_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="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &lt;stddef.h&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;<a class="code" href="aaruformat_8h.html">aaruformat.h</a>&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;zstd.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span></div>
<div class="foldopen" id="foldopen00034" data-start="{" data-end="}">
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="decls_8h.html#ac0f8004dbea44979bf8b58c3e3a1a6ae"> 34</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">size_t</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="zstd_8c.html#ac0f8004dbea44979bf8b58c3e3a1a6ae">aaruf_zstd_decode_buffer</a>(uint8_t *dst_buffer, <span class="keywordtype">size_t</span> dst_size, <span class="keyword">const</span> uint8_t *src_buffer,</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordtype">size_t</span> src_size)</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">size_t</span> result = ZSTD_decompress(dst_buffer, dst_size, src_buffer, src_size);</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">if</span>(ZSTD_isError(result)) <span class="keywordflow">return</span> 0;</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="keywordflow">return</span> result;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span>}</div>
</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span></div>
<div class="foldopen" id="foldopen00059" data-start="{" data-end="}">
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="decls_8h.html#a3950b73c924a7096bb2313e0858a315a"> 59</a></span><a class="code hl_define" href="decls_8h.html#a9001412c35f3c92d3a9320d27b0d97f9">AARU_EXPORT</a> <span class="keywordtype">size_t</span> <a class="code hl_define" href="decls_8h.html#a018e0da1c1f7e4f6187a982c0e40e056">AARU_CALL</a> <a class="code hl_function" href="zstd_8c.html#a3950b73c924a7096bb2313e0858a315a">aaruf_zstd_encode_buffer</a>(uint8_t *dst_buffer, <span class="keywordtype">size_t</span> dst_size, <span class="keyword">const</span> uint8_t *src_buffer,</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">size_t</span> src_size, <span class="keywordtype">int</span> level, <span class="keywordtype">int</span> num_threads)</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> ZSTD_CCtx *cctx = ZSTD_createCCtx();</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">if</span>(cctx == NULL) <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> ZSTD_CCtx_setParameter(cctx, ZSTD_c_compressionLevel, level);</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="keywordflow">if</span>(num_threads &gt; 1) ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, num_threads);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">size_t</span> result = ZSTD_compress2(cctx, dst_buffer, dst_size, src_buffer, src_size);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> ZSTD_freeCCtx(cctx);</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">if</span>(ZSTD_isError(result)) <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span>}</div>
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<div class="ttc" id="aaaruformat_8h_html"><div class="ttname"><a href="aaruformat_8h.html">aaruformat.h</a></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_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="azstd_8c_html_a3950b73c924a7096bb2313e0858a315a"><div class="ttname"><a href="zstd_8c.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="#l00059">zstd.c:59</a></div></div>
<div class="ttc" id="azstd_8c_html_ac0f8004dbea44979bf8b58c3e3a1a6ae"><div class="ttname"><a href="zstd_8c.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="#l00034">zstd.c:34</a></div></div>
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