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authorbyrnHDF <byrnHDF@users.noreply.github.com>2023-06-26 19:22:17 (GMT)
committerbyrnHDF <byrnHDF@users.noreply.github.com>2023-06-26 19:22:17 (GMT)
commitd12e43bc201e15edffcdf94fe820aeae6ab44882 (patch)
tree90aa12006b20849b65b7bc8e3d4fe60a488f7247 /_h5_f_donion_8h.html
parent4d49d1ee001bd4dff6b01e1830902bee22a19f3e (diff)
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+<div style="background:#FFDDDD;font-size:120%;text-align:center;margin:0;padding:5px">Please, help us to better serve our user community by answering the following short survey: <a href="https://www.hdfgroup.org/website-survey/">https://www.hdfgroup.org/website-survey/</a></div>
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+ <td id="projectalign" style="padding-left: 0.5em;">
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+$(document).ready(function(){initNavTree('_h5_f_donion_8h.html',''); initResizable(); });
+/* @license-end */
+</script>
+<div id="doc-content">
+<!-- window showing the filter options -->
+<div id="MSearchSelectWindow"
+ onmouseover="return searchBox.OnSearchSelectShow()"
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+
+<div class="header">
+ <div class="summary">
+<a href="#nested-classes">Data Structures</a> &#124;
+<a href="#define-members">Macros</a> &#124;
+<a href="#enum-members">Enumerations</a> &#124;
+<a href="#func-members">Functions</a> </div>
+ <div class="headertitle">
+<div class="title">H5FDonion.h File Reference</div> </div>
+</div><!--header-->
+<div class="contents">
+<table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
+Data Structures</h2></td></tr>
+<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_h5_f_d__onion__fapl__info__t.html">H5FD_onion_fapl_info_t</a></td></tr>
+<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table><table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
+Macros</h2></td></tr>
+<tr class="memitem:a1d6673897b4ebd1bad9846b5695ba346"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a1d6673897b4ebd1bad9846b5695ba346">H5FD_ONION</a>&#160;&#160;&#160;(<a class="el" href="_h5_f_ddevelop_8h.html#a4df4d59c642c469f7a2c8934bfc84d60">H5FDperform_init</a>(<a class="el" href="_h5_f_donion_8h.html#ac571a37c9956eb62afa174cc8209ccf3">H5FD_onion_init</a>))</td></tr>
+<tr class="separator:a1d6673897b4ebd1bad9846b5695ba346"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a45dad20deb25126398919c7d6e16ce9e"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a45dad20deb25126398919c7d6e16ce9e">H5FD_ONION_VALUE</a>&#160;&#160;&#160;<a class="el" href="_h5_f_dpublic_8h.html#ad0fbc20e7979087c577f8e50a4ebe121">H5_VFD_ONION</a></td></tr>
+<tr class="separator:a45dad20deb25126398919c7d6e16ce9e"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a4562e4fe67ed2c5448e4145c44734420"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a4562e4fe67ed2c5448e4145c44734420">H5FD_ONION_FAPL_INFO_VERSION_CURR</a>&#160;&#160;&#160;1</td></tr>
+<tr class="separator:a4562e4fe67ed2c5448e4145c44734420"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a3d376561fd9da23647f9731f749fd68f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a3d376561fd9da23647f9731f749fd68f">H5FD_ONION_FAPL_INFO_CREATE_FLAG_ENABLE_PAGE_ALIGNMENT</a>&#160;&#160;&#160; (0x0001u)</td></tr>
+<tr class="separator:a3d376561fd9da23647f9731f749fd68f"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a79df74491cceb74d43ca9e10d0be25ce"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a79df74491cceb74d43ca9e10d0be25ce">H5FD_ONION_FAPL_INFO_COMMENT_MAX_LEN</a>&#160;&#160;&#160;255</td></tr>
+<tr class="separator:a79df74491cceb74d43ca9e10d0be25ce"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a3e252443bb7c90b2d05c0bb5f97891f0"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a3e252443bb7c90b2d05c0bb5f97891f0">H5FD_ONION_FAPL_INFO_REVISION_ID_LATEST</a>&#160;&#160;&#160;UINT64_MAX</td></tr>
+<tr class="separator:a3e252443bb7c90b2d05c0bb5f97891f0"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table><table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a>
+Enumerations</h2></td></tr>
+<tr class="memitem:abbf57ea23523a7fceff6f1212bd68a6f"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#abbf57ea23523a7fceff6f1212bd68a6f">H5FD_onion_target_file_constant_t</a> { <a class="el" href="_h5_f_donion_8h.html#abbf57ea23523a7fceff6f1212bd68a6fa680be8b6ba69ed683e247e0bd5e2ed4a">H5FD_ONION_STORE_TARGET_ONION</a>
+ }</td></tr>
+<tr class="separator:abbf57ea23523a7fceff6f1212bd68a6f"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table><table class="memberdecls">
+<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
+Functions</h2></td></tr>
+<tr class="memitem:ac571a37c9956eb62afa174cc8209ccf3"><td class="memItemLeft" align="right" valign="top">H5_DLL <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#ac571a37c9956eb62afa174cc8209ccf3">H5FD_onion_init</a> (void)</td></tr>
+<tr class="separator:ac571a37c9956eb62afa174cc8209ccf3"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:ga89b9f918d53dee5e6c80060667b8d32f"><td class="memItemLeft" align="right" valign="top">H5_DLL <a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_a_p_l.html#ga89b9f918d53dee5e6c80060667b8d32f">H5Pget_fapl_onion</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> fapl_id, <a class="el" href="struct_h5_f_d__onion__fapl__info__t.html">H5FD_onion_fapl_info_t</a> *fa_out)</td></tr>
+<tr class="memdesc:ga89b9f918d53dee5e6c80060667b8d32f"><td class="mdescLeft">&#160;</td><td class="mdescRight">get the onion info from the file access property list <a href="group___f_a_p_l.html#ga89b9f918d53dee5e6c80060667b8d32f">More...</a><br /></td></tr>
+<tr class="separator:ga89b9f918d53dee5e6c80060667b8d32f"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:ga4d053c7682e54287e550113972b7dda6"><td class="memItemLeft" align="right" valign="top">H5_DLL <a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___f_a_p_l.html#ga4d053c7682e54287e550113972b7dda6">H5Pset_fapl_onion</a> (<a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> fapl_id, const <a class="el" href="struct_h5_f_d__onion__fapl__info__t.html">H5FD_onion_fapl_info_t</a> *fa)</td></tr>
+<tr class="memdesc:ga4d053c7682e54287e550113972b7dda6"><td class="mdescLeft">&#160;</td><td class="mdescRight">set the onion info for the file access property list <a href="group___f_a_p_l.html#ga4d053c7682e54287e550113972b7dda6">More...</a><br /></td></tr>
+<tr class="separator:ga4d053c7682e54287e550113972b7dda6"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:a132aba14546c0da4cc2e467ba4219715"><td class="memItemLeft" align="right" valign="top">H5_DLL <a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="_h5_f_donion_8h.html#a132aba14546c0da4cc2e467ba4219715">H5FDonion_get_revision_count</a> (const char *filename, <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> fapl_id, uint64_t *revision_count)</td></tr>
+<tr class="memdesc:a132aba14546c0da4cc2e467ba4219715"><td class="mdescLeft">&#160;</td><td class="mdescRight">get the number of revisions <a href="_h5_f_donion_8h.html#a132aba14546c0da4cc2e467ba4219715">More...</a><br /></td></tr>
+<tr class="separator:a132aba14546c0da4cc2e467ba4219715"><td class="memSeparator" colspan="2">&#160;</td></tr>
+</table>
+<h2 class="groupheader">Macro Definition Documentation</h2>
+<a id="a1d6673897b4ebd1bad9846b5695ba346"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a1d6673897b4ebd1bad9846b5695ba346">&#9670;&nbsp;</a></span>H5FD_ONION</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION&#160;&#160;&#160;(<a class="el" href="_h5_f_ddevelop_8h.html#a4df4d59c642c469f7a2c8934bfc84d60">H5FDperform_init</a>(<a class="el" href="_h5_f_donion_8h.html#ac571a37c9956eb62afa174cc8209ccf3">H5FD_onion_init</a>))</td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a id="a79df74491cceb74d43ca9e10d0be25ce"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a79df74491cceb74d43ca9e10d0be25ce">&#9670;&nbsp;</a></span>H5FD_ONION_FAPL_INFO_COMMENT_MAX_LEN</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION_FAPL_INFO_COMMENT_MAX_LEN&#160;&#160;&#160;255</td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+<p>Max length of a comment. The buffer is defined to be this size + 1 to handle the NUL. </p>
+
+</div>
+</div>
+<a id="a3d376561fd9da23647f9731f749fd68f"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a3d376561fd9da23647f9731f749fd68f">&#9670;&nbsp;</a></span>H5FD_ONION_FAPL_INFO_CREATE_FLAG_ENABLE_PAGE_ALIGNMENT</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION_FAPL_INFO_CREATE_FLAG_ENABLE_PAGE_ALIGNMENT&#160;&#160;&#160; (0x0001u)</td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+<p>\ Onion history metadata will align to page_size. \ Partial pages of unused space will occur in the file, \ but may improve read performance from the backing store \ on some systems. \ If disabled (0), padding will not be inserted to align \ to page boundaries. \ </p>
+
+</div>
+</div>
+<a id="a3e252443bb7c90b2d05c0bb5f97891f0"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a3e252443bb7c90b2d05c0bb5f97891f0">&#9670;&nbsp;</a></span>H5FD_ONION_FAPL_INFO_REVISION_ID_LATEST</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION_FAPL_INFO_REVISION_ID_LATEST&#160;&#160;&#160;UINT64_MAX</td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+<p>Indicates that you want the latest revision. </p>
+
+</div>
+</div>
+<a id="a4562e4fe67ed2c5448e4145c44734420"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a4562e4fe67ed2c5448e4145c44734420">&#9670;&nbsp;</a></span>H5FD_ONION_FAPL_INFO_VERSION_CURR</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION_FAPL_INFO_VERSION_CURR&#160;&#160;&#160;1</td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+<p>Current version of the onion VFD fapl info struct. </p>
+
+</div>
+</div>
+<a id="a45dad20deb25126398919c7d6e16ce9e"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a45dad20deb25126398919c7d6e16ce9e">&#9670;&nbsp;</a></span>H5FD_ONION_VALUE</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">#define H5FD_ONION_VALUE&#160;&#160;&#160;<a class="el" href="_h5_f_dpublic_8h.html#ad0fbc20e7979087c577f8e50a4ebe121">H5_VFD_ONION</a></td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<h2 class="groupheader">Enumeration Type Documentation</h2>
+<a id="abbf57ea23523a7fceff6f1212bd68a6f"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#abbf57ea23523a7fceff6f1212bd68a6f">&#9670;&nbsp;</a></span>H5FD_onion_target_file_constant_t</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">enum <a class="el" href="_h5_f_donion_8h.html#abbf57ea23523a7fceff6f1212bd68a6f">H5FD_onion_target_file_constant_t</a></td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+<p>Indicates how the new onion data will be stored. </p>
+<table class="fieldtable">
+<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="abbf57ea23523a7fceff6f1212bd68a6fa680be8b6ba69ed683e247e0bd5e2ed4a"></a>H5FD_ONION_STORE_TARGET_ONION&#160;</td><td class="fielddoc"><p>Onion history is stored in a single, separate "onion
+file". Shares filename and path as <a class="el" href="namespacehdf5.html">hdf5</a> file (if any), with only a different filename extension. </p>
+</td></tr>
+</table>
+
+</div>
+</div>
+<h2 class="groupheader">Function Documentation</h2>
+<a id="ac571a37c9956eb62afa174cc8209ccf3"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#ac571a37c9956eb62afa174cc8209ccf3">&#9670;&nbsp;</a></span>H5FD_onion_init()</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">H5_DLL <a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a> H5FD_onion_init </td>
+ <td>(</td>
+ <td class="paramtype">void&#160;</td>
+ <td class="paramname"></td><td>)</td>
+ <td></td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+
+</div>
+</div>
+<a id="a132aba14546c0da4cc2e467ba4219715"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a132aba14546c0da4cc2e467ba4219715">&#9670;&nbsp;</a></span>H5FDonion_get_revision_count()</h2>
+
+<div class="memitem">
+<div class="memproto">
+ <table class="memname">
+ <tr>
+ <td class="memname">H5_DLL <a class="el" href="_h5public_8h.html#a3b079ecf932a5c599499cf7e298af160">herr_t</a> H5FDonion_get_revision_count </td>
+ <td>(</td>
+ <td class="paramtype">const char *&#160;</td>
+ <td class="paramname"><em>filename</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype"><a class="el" href="_h5_ipublic_8h.html#a0045db7ff9c22ad35db6ae91662e1943">hid_t</a>&#160;</td>
+ <td class="paramname"><em>fapl_id</em>, </td>
+ </tr>
+ <tr>
+ <td class="paramkey"></td>
+ <td></td>
+ <td class="paramtype">uint64_t *&#160;</td>
+ <td class="paramname"><em>revision_count</em>&#160;</td>
+ </tr>
+ <tr>
+ <td></td>
+ <td>)</td>
+ <td></td><td></td>
+ </tr>
+ </table>
+</div><div class="memdoc">
+
+<p>get the number of revisions </p>
+<hr />
+<dl class="params"><dt>Parameters</dt><dd>
+ <table class="params">
+ <tr><td class="paramdir">[in]</td><td class="paramname">filename</td><td>The name of the onion file </td></tr>
+ <tr><td class="paramdir">[in]</td><td class="paramname">fapl_id</td><td>The ID of the file access property list </td></tr>
+ <tr><td class="paramdir">[out]</td><td class="paramname">revision_count</td><td>The number of revisions</td></tr>
+ </table>
+ </dd>
+</dl>
+<dl class="section return"><dt>Returns</dt><dd>Returns a non-negative value if successful; otherwise, returns a negative value.</dd></dl>
+<p><a class="el" href="_h5_f_donion_8h.html#a132aba14546c0da4cc2e467ba4219715" title="get the number of revisions">H5FDonion_get_revision_count()</a> returns the number of revisions for an onion file. It takes the file name and file access property list that is set for the onion VFD driver.</p>
+<dl class="section since"><dt>Since</dt><dd>1.14.0 </dd></dl>
+
+</div>
+</div>
+</div><!-- contents -->
+</div><!-- doc-content -->
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+ <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="_h5_f_donion_8h.html">H5FDonion.h</a></li>
+ <li class="footer">Generated on Mon Jun 26 2023 19:01:33 for HDF5 by
+ <a href="http://www.doxygen.org/index.html">
+ <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.9.1 </li>
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