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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div id="projectname">Hardware Locality (hwloc)
 <span id="projectnumber">1.10.0</span>
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<div class="title">hwloc_component Struct Reference<div class="ingroups"><a class="el" href="a00100.html">Components and Plugins: Generic components</a></div></div> </div>
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<p><code>#include <<a class="el" href="a00071_source.html">plugins.h</a>></code></p>
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Data Fields</h2></td></tr>
<tr class="memitem:a3250bd6fc9713946991d805e48091b2e"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#a3250bd6fc9713946991d805e48091b2e">abi</a></td></tr>
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<tr class="memitem:a610b612f198afa7324c3e720149e416b"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#a610b612f198afa7324c3e720149e416b">init</a> )(unsigned long <a class="el" href="a00032.html#ab8043c5b4cc0e81aabba586ccb194335">flags</a>)</td></tr>
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<tr class="memitem:a8e6a3fbd401292460d8142210c7e5d32"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#a8e6a3fbd401292460d8142210c7e5d32">finalize</a> )(unsigned long <a class="el" href="a00032.html#ab8043c5b4cc0e81aabba586ccb194335">flags</a>)</td></tr>
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<tr class="memitem:a789208ada7e17492cfd3a5a88a6bb0ee"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00100.html#ga0aebfa65317af10bb18d7d35f6dc05b8">hwloc_component_type_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#a789208ada7e17492cfd3a5a88a6bb0ee">type</a></td></tr>
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<tr class="memitem:ab8043c5b4cc0e81aabba586ccb194335"><td class="memItemLeft" align="right" valign="top">unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#ab8043c5b4cc0e81aabba586ccb194335">flags</a></td></tr>
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<tr class="memitem:a4b8cffd1d943c29fdc102b841b8598d4"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00032.html#a4b8cffd1d943c29fdc102b841b8598d4">data</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Generic component structure. </p>
<p>Generic components structure, either statically listed by configure in static-components.h or dynamically loaded as a plugin. </p>
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<td class="memname">unsigned hwloc_component::abi</td>
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<p>Component ABI version, set to HWLOC_COMPONENT_ABI. </p>
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<td class="memname">void* hwloc_component::data</td>
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<p>Component data, pointing to a struct <a class="el" href="a00033.html" title="Discovery component structure. ">hwloc_disc_component</a> or struct hwloc_xml_component. </p>
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<td class="memname">void(* hwloc_component::finalize)(unsigned long <a class="el" href="a00032.html#ab8043c5b4cc0e81aabba586ccb194335">flags</a>)</td>
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<p>Process-wide component termination callback. </p>
<p>This optional callback is called after unregistering the component from the hwloc core (before unloading the plugin).</p>
<p><code>flags</code> is always 0 for now.</p>
<dl class="section note"><dt>Note</dt><dd>If the component uses ltdl for loading its own plugins, it should load/unload them only in <a class="el" href="a00032.html#a610b612f198afa7324c3e720149e416b" title="Process-wide component initialization callback. ">init()</a> and <a class="el" href="a00032.html#a8e6a3fbd401292460d8142210c7e5d32" title="Process-wide component termination callback. ">finalize()</a>, to avoid race conditions with hwloc's use of ltdl. </dd></dl>
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<td class="memname">unsigned long hwloc_component::flags</td>
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<p>Component flags, unused for now. </p>
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<td class="memname">int(* hwloc_component::init)(unsigned long <a class="el" href="a00032.html#ab8043c5b4cc0e81aabba586ccb194335">flags</a>)</td>
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<p>Process-wide component initialization callback. </p>
<p>This optional callback is called when the component is registered to the hwloc core (after loading the plugin).</p>
<p>When the component is built as a plugin, this callback should call hwloc_check_plugin_namespace() and return an negative error code on error.</p>
<p><code>flags</code> is always 0 for now.</p>
<dl class="section return"><dt>Returns</dt><dd>0 on success, or a negative code on error.</dd></dl>
<p>If the component uses ltdl for loading its own plugins, it should load/unload them only in <a class="el" href="a00032.html#a610b612f198afa7324c3e720149e416b" title="Process-wide component initialization callback. ">init()</a> and <a class="el" href="a00032.html#a8e6a3fbd401292460d8142210c7e5d32" title="Process-wide component termination callback. ">finalize()</a>, to avoid race conditions with hwloc's use of ltdl. </p>
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<td class="memname"><a class="el" href="a00100.html#ga0aebfa65317af10bb18d7d35f6dc05b8">hwloc_component_type_t</a> hwloc_component::type</td>
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<p>Component type. </p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="a00071_source.html">plugins.h</a></li>
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