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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<p>Single index entry describing a block's type, (optional) data classification, and file offset.
<a href="#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="index_8h_source.html">aaruformat/structs/index.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 id="header-pub-attribs" class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Data Fields</h2></td></tr>
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<tr class="memitem:a4b5c7115ac83019c3f77c6f047e5f75e" id="r_a4b5c7115ac83019c3f77c6f047e5f75e"><td class="memItemLeft">uint32_t&#160;</td><td class="memItemRight"><a class="el" href="#a4b5c7115ac83019c3f77c6f047e5f75e">blockType</a></td></tr>
<tr class="memdesc:a4b5c7115ac83019c3f77c6f047e5f75e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Block identifier of the referenced block (value from <a class="el" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3" title="BlockType">BlockType</a>). <br /></td></tr>
<tr class="memitem:ae5d35082a756e0388efbf5fabbe93d10" id="r_ae5d35082a756e0388efbf5fabbe93d10"><td class="memItemLeft">uint16_t&#160;</td><td class="memItemRight"><a class="el" href="#ae5d35082a756e0388efbf5fabbe93d10">dataType</a></td></tr>
<tr class="memdesc:ae5d35082a756e0388efbf5fabbe93d10"><td class="mdescLeft">&#160;</td><td class="mdescRight">Data classification (value from <a class="el" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6" title="DataType">DataType</a>) or unused for untyped blocks. <br /></td></tr>
<tr class="memitem:a854951a64192d7e4cdcfa6dd6fd2b3ea" id="r_a854951a64192d7e4cdcfa6dd6fd2b3ea"><td class="memItemLeft">uint64_t&#160;</td><td class="memItemRight"><a class="el" href="#a854951a64192d7e4cdcfa6dd6fd2b3ea">offset</a></td></tr>
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<tr class="memdesc:a854951a64192d7e4cdcfa6dd6fd2b3ea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Absolute byte offset in the image where the referenced block header begins. <br /></td></tr>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Single index entry describing a block's type, (optional) data classification, and file offset. </p>
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<p>Semantics by blockType (see <a class="el" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3" title="BlockType">BlockType</a>):</p><ul>
<li>DataBlock / GeometryBlock / ChecksumBlock / etc.: dataType conveys specific stored data category (<a class="el" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6" title="DataType">DataType</a>).</li>
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<li>Deduplication (DDT) or Index blocks: dataType may be ignored or set to a sentinel.</li>
<li>IndexBlock3: this entry refers to a subindex; offset points to another <a class="el" href="structIndexHeader3.html" title="Index header (version 3) adding hierarchical chaining (identifier == IndexBlock3).">IndexHeader3</a>. </li>
</ul>
<p class="definition">Definition at line <a class="el" href="index_8h_source.html#l00108">108</a> of file <a class="el" href="index_8h_source.html">index.h</a>.</p>
</div><a name="doc-variable-members" id="doc-variable-members"></a><h2 id="header-doc-variable-members" class="groupheader">Field Documentation</h2>
<a id="a4b5c7115ac83019c3f77c6f047e5f75e" name="a4b5c7115ac83019c3f77c6f047e5f75e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4b5c7115ac83019c3f77c6f047e5f75e">&#9670;&#160;</a></span>blockType</h2>
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<td class="memname">uint32_t IndexEntry::blockType</td>
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<p>Block identifier of the referenced block (value from <a class="el" href="enums_8h.html#a54420623f26ab6bb61042b41cccf37a3" title="BlockType">BlockType</a>). </p>
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<p class="definition">Definition at line <a class="el" href="index_8h_source.html#l00110">110</a> of file <a class="el" href="index_8h_source.html">index.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="write_8c_source.html#l01569">aaruf_close_current_block()</a>, <a class="el" href="open_8c_source.html#l00236">aaruf_open()</a>, <a class="el" href="verify_8c_source.html#l00130">aaruf_verify_image()</a>, <a class="el" href="index__v3_8c_source.html#l00247">add_subindex_entries()</a>, <a class="el" href="erasure_8c_source.html#l00537">ec_collect_blocks_by_type()</a>, <a class="el" href="erasure_8c_source.html#l00585">ec_finalize()</a>, <a class="el" href="flux_8c_source.html#l00416">ensure_flux_entries_loaded()</a>, <a class="el" href="data_8c_source.html#l00073">process_data_block()</a>, <a class="el" href="blocks_2dump_8c_source.html#l00107">process_dumphw_block()</a>, <a class="el" href="index__v3_8c_source.html#l00098">process_index_v3()</a>, <a class="el" href="blocks_2metadata_8c_source.html#l00036">process_metadata_block()</a>, <a class="el" href="close__write_8c_source.html#l04657">remove_dpm_index_entries()</a>, <a class="el" href="ddt__v2_8c_source.html#l01409">set_ddt_multi_level_v2()</a>, <a class="el" href="close__write_8c_source.html#l04603">write_aaru_json_block()</a>, <a class="el" href="close__write_8c_source.html#l02677">write_bd_sector_edc_block()</a>, <a class="el" href="close__write_8c_source.html#l00070">write_cached_secondary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00731">write_checksum_block()</a>, <a class="el" href="close__write_8c_source.html#l04453">write_cicm_block()</a>, <a class="el" href="close__write_8c_source.html#l04683">write_dpm_block()</a>, <a class="el" href="close__write_8c_source.html#l04210">write_dumphw_block()</a>, <a class="el" href="close__write_8c_source.html#l02117">write_dvd_long_sector_blocks()</a>, <a class="el" href="close__write_8c_source.html#l02890">write_dvd_title_key_decrypted_block()</a>, <a class="el" href="close__write_8c_source.html#l05322">write_flux_blocks()</a>, <a class="el" href="close__write_8c_source.html#l04907">write_flux_capture_payload()</a>, <a class="el" href="close__write_8c_source.html#l03763">write_geometry_block()</a>, <a class="el" href="close__write_8c_source.html#l05443">write_index_block()</a>, <a class="el" href="close__write_8c_source.html#l03087">write_media_tags()</a>, <a class="el" href="close__write_8c_source.html#l03912">write_metadata_block()</a>, <a class="el" href="close__write_8c_source.html#l00954">write_mode2_subheaders_block()</a>, <a class="el" href="close__write_8c_source.html#l00300">write_primary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01101">write_sector_prefix()</a>, <a class="el" href="close__write_8c_source.html#l01403">write_sector_prefix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01771">write_sector_subchannel()</a>, <a class="el" href="close__write_8c_source.html#l01254">write_sector_suffix()</a>, <a class="el" href="close__write_8c_source.html#l01580">write_sector_suffix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00405">write_single_level_ddt()</a>, <a class="el" href="close__write_8c_source.html#l03378">write_tape_file_block()</a>, <a class="el" href="close__write_8c_source.html#l03624">write_tape_partition_block()</a>, and <a class="el" href="close__write_8c_source.html#l00888">write_tracks_block()</a>.</p>
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<a id="ae5d35082a756e0388efbf5fabbe93d10" name="ae5d35082a756e0388efbf5fabbe93d10"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae5d35082a756e0388efbf5fabbe93d10">&#9670;&#160;</a></span>dataType</h2>
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<td class="memname">uint16_t IndexEntry::dataType</td>
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<p>Data classification (value from <a class="el" href="enums_8h.html#ad8ed01ff3ff33333d8e19db4d2818bb6" title="DataType">DataType</a>) or unused for untyped blocks. </p>
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<p class="definition">Definition at line <a class="el" href="index_8h_source.html#l00111">111</a> of file <a class="el" href="index_8h_source.html">index.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="write_8c_source.html#l01569">aaruf_close_current_block()</a>, <a class="el" href="open_8c_source.html#l00236">aaruf_open()</a>, <a class="el" href="erasure_8c_source.html#l00585">ec_finalize()</a>, <a class="el" href="data_8c_source.html#l00073">process_data_block()</a>, <a class="el" href="ddt__v1_8c_source.html#l00086">process_ddt_v1()</a>, <a class="el" href="ddt__v2_8c_source.html#l00097">process_ddt_v2()</a>, <a class="el" href="close__write_8c_source.html#l04657">remove_dpm_index_entries()</a>, <a class="el" href="ddt__v2_8c_source.html#l01409">set_ddt_multi_level_v2()</a>, <a class="el" href="close__write_8c_source.html#l04603">write_aaru_json_block()</a>, <a class="el" href="close__write_8c_source.html#l02677">write_bd_sector_edc_block()</a>, <a class="el" href="close__write_8c_source.html#l00070">write_cached_secondary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00731">write_checksum_block()</a>, <a class="el" href="close__write_8c_source.html#l04453">write_cicm_block()</a>, <a class="el" href="close__write_8c_source.html#l04683">write_dpm_block()</a>, <a class="el" href="close__write_8c_source.html#l04210">write_dumphw_block()</a>, <a class="el" href="close__write_8c_source.html#l02117">write_dvd_long_sector_blocks()</a>, <a class="el" href="close__write_8c_source.html#l02890">write_dvd_title_key_decrypted_block()</a>, <a class="el" href="close__write_8c_source.html#l05322">write_flux_blocks()</a>, <a class="el" href="close__write_8c_source.html#l04907">write_flux_capture_payload()</a>, <a class="el" href="close__write_8c_source.html#l03763">write_geometry_block()</a>, <a class="el" href="close__write_8c_source.html#l05443">write_index_block()</a>, <a class="el" href="close__write_8c_source.html#l03087">write_media_tags()</a>, <a class="el" href="close__write_8c_source.html#l03912">write_metadata_block()</a>, <a class="el" href="close__write_8c_source.html#l00954">write_mode2_subheaders_block()</a>, <a class="el" href="close__write_8c_source.html#l00300">write_primary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01101">write_sector_prefix()</a>, <a class="el" href="close__write_8c_source.html#l01403">write_sector_prefix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01771">write_sector_subchannel()</a>, <a class="el" href="close__write_8c_source.html#l01254">write_sector_suffix()</a>, <a class="el" href="close__write_8c_source.html#l01580">write_sector_suffix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00405">write_single_level_ddt()</a>, <a class="el" href="close__write_8c_source.html#l03378">write_tape_file_block()</a>, <a class="el" href="close__write_8c_source.html#l03624">write_tape_partition_block()</a>, and <a class="el" href="close__write_8c_source.html#l00888">write_tracks_block()</a>.</p>
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</div>
</div>
<a id="a854951a64192d7e4cdcfa6dd6fd2b3ea" name="a854951a64192d7e4cdcfa6dd6fd2b3ea"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a854951a64192d7e4cdcfa6dd6fd2b3ea">&#9670;&#160;</a></span>offset</h2>
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<td class="memname">uint64_t IndexEntry::offset</td>
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<p>Absolute byte offset in the image where the referenced block header begins. </p>
<p class="definition">Definition at line <a class="el" href="index_8h_source.html#l00112">112</a> of file <a class="el" href="index_8h_source.html">index.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="write_8c_source.html#l01569">aaruf_close_current_block()</a>, <a class="el" href="open_8c_source.html#l00236">aaruf_open()</a>, <a class="el" href="verify_8c_source.html#l00130">aaruf_verify_image()</a>, <a class="el" href="index__v3_8c_source.html#l00247">add_subindex_entries()</a>, <a class="el" href="erasure_8c_source.html#l00537">ec_collect_blocks_by_type()</a>, <a class="el" href="erasure_8c_source.html#l00585">ec_finalize()</a>, <a class="el" href="blocks_2metadata_8c_source.html#l00478">process_aaru_metadata_json_block()</a>, <a class="el" href="checksum_8c_source.html#l00040">process_checksum_block()</a>, <a class="el" href="blocks_2metadata_8c_source.html#l00313">process_cicm_block()</a>, <a class="el" href="data_8c_source.html#l00073">process_data_block()</a>, <a class="el" href="ddt__v1_8c_source.html#l00086">process_ddt_v1()</a>, <a class="el" href="ddt__v2_8c_source.html#l00097">process_ddt_v2()</a>, <a class="el" href="blocks_2dpm_8c_source.html#l00148">process_dpm_block()</a>, <a class="el" href="blocks_2dump_8c_source.html#l00107">process_dumphw_block()</a>, <a class="el" href="flux_8c_source.html#l00308">process_flux_data_block()</a>, <a class="el" href="blocks_2metadata_8c_source.html#l00253">process_geometry_block()</a>, <a class="el" href="blocks_2metadata_8c_source.html#l00036">process_metadata_block()</a>, <a class="el" href="tape_8c_source.html#l00127">process_tape_files_block()</a>, <a class="el" href="tape_8c_source.html#l00348">process_tape_partitions_block()</a>, <a class="el" href="optical_8c_source.html#l00116">process_tracks_block()</a>, <a class="el" href="ddt__v2_8c_source.html#l01409">set_ddt_multi_level_v2()</a>, <a class="el" href="close__write_8c_source.html#l04603">write_aaru_json_block()</a>, <a class="el" href="close__write_8c_source.html#l02677">write_bd_sector_edc_block()</a>, <a class="el" href="close__write_8c_source.html#l00070">write_cached_secondary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00731">write_checksum_block()</a>, <a class="el" href="close__write_8c_source.html#l04453">write_cicm_block()</a>, <a class="el" href="close__write_8c_source.html#l04683">write_dpm_block()</a>, <a class="el" href="close__write_8c_source.html#l04210">write_dumphw_block()</a>, <a class="el" href="close__write_8c_source.html#l02117">write_dvd_long_sector_blocks()</a>, <a class="el" href="close__write_8c_source.html#l02890">write_dvd_title_key_decrypted_block()</a>, <a class="el" href="close__write_8c_source.html#l05322">write_flux_blocks()</a>, <a class="el" href="close__write_8c_source.html#l04907">write_flux_capture_payload()</a>, <a class="el" href="close__write_8c_source.html#l03763">write_geometry_block()</a>, <a class="el" href="close__write_8c_source.html#l05443">write_index_block()</a>, <a class="el" href="close__write_8c_source.html#l03087">write_media_tags()</a>, <a class="el" href="close__write_8c_source.html#l03912">write_metadata_block()</a>, <a class="el" href="close__write_8c_source.html#l00954">write_mode2_subheaders_block()</a>, <a class="el" href="close__write_8c_source.html#l00300">write_primary_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01101">write_sector_prefix()</a>, <a class="el" href="close__write_8c_source.html#l01403">write_sector_prefix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l01771">write_sector_subchannel()</a>, <a class="el" href="close__write_8c_source.html#l01254">write_sector_suffix()</a>, <a class="el" href="close__write_8c_source.html#l01580">write_sector_suffix_ddt()</a>, <a class="el" href="close__write_8c_source.html#l00405">write_single_level_ddt()</a>, <a class="el" href="close__write_8c_source.html#l03378">write_tape_file_block()</a>, <a class="el" href="close__write_8c_source.html#l03624">write_tape_partition_block()</a>, and <a class="el" href="close__write_8c_source.html#l00888">write_tracks_block()</a>.</p>
2025-10-11 01:35:43 +01:00
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>include/aaruformat/structs/<a class="el" href="index_8h_source.html">index.h</a></li>
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