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<title>Apache Portable Runtime: Dynamic Object Handling</title>
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<a href="#typedef-members">Typedefs</a> |
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<div class="title">Dynamic Object Handling<div class="ingroups"><a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a></div></div> </div>
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Collaboration diagram for Dynamic Object Handling:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga85e7e28490d026aeed78bd78e9933472"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a></td></tr>
<tr class="separator:ga85e7e28490d026aeed78bd78e9933472"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf1aa0a039e8003586cfdfbc4ac57e775"><td class="memItemLeft" align="right" valign="top">typedef void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#gaf1aa0a039e8003586cfdfbc4ac57e775">apr_dso_handle_sym_t</a></td></tr>
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</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:gaedc8609c2bb76e5c43f2df2281a9d8b6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#gaedc8609c2bb76e5c43f2df2281a9d8b6">apr_dso_load</a> (<a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> **res_handle, const char *path, <a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *ctx)</td></tr>
<tr class="separator:gaedc8609c2bb76e5c43f2df2281a9d8b6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4c7b1b4e98a5d23c56182ece047fbb7b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#ga4c7b1b4e98a5d23c56182ece047fbb7b">apr_dso_unload</a> (<a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> *handle)</td></tr>
<tr class="separator:ga4c7b1b4e98a5d23c56182ece047fbb7b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae84cd7041976787d73a9558e3393b97c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#gae84cd7041976787d73a9558e3393b97c">apr_dso_sym</a> (<a class="el" href="group__apr__dso.html#gaf1aa0a039e8003586cfdfbc4ac57e775">apr_dso_handle_sym_t</a> *ressym, <a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> *handle, const char *symname)</td></tr>
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<tr class="memitem:gafa34fc75e1e9b8856385d3b18cfac05c"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__dso.html#gafa34fc75e1e9b8856385d3b18cfac05c">apr_dso_error</a> (<a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> *dso, char *buf, apr_size_t bufsize)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Typedef Documentation</h2>
<a id="gaf1aa0a039e8003586cfdfbc4ac57e775"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf1aa0a039e8003586cfdfbc4ac57e775">◆ </a></span>apr_dso_handle_sym_t</h2>
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<td class="memname">typedef void* <a class="el" href="group__apr__dso.html#gaf1aa0a039e8003586cfdfbc4ac57e775">apr_dso_handle_sym_t</a></td>
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<p>Structure for referencing symbols from dynamic objects </p>
</div>
</div>
<a id="ga85e7e28490d026aeed78bd78e9933472"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga85e7e28490d026aeed78bd78e9933472">◆ </a></span>apr_dso_handle_t</h2>
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<div class="memproto">
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<td class="memname">typedef struct <a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> <a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a></td>
</tr>
</table>
</div><div class="memdoc">
<p>Structure for referencing dynamic objects </p>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="gafa34fc75e1e9b8856385d3b18cfac05c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gafa34fc75e1e9b8856385d3b18cfac05c">◆ </a></span>apr_dso_error()</h2>
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<td class="memname">const char* apr_dso_error </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> * </td>
<td class="paramname"><em>dso</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char * </td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">apr_size_t </td>
<td class="paramname"><em>bufsize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>Report more information when a DSO function fails. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dso</td><td>The dso handle that has been opened </td></tr>
<tr><td class="paramname">buf</td><td>Location to store the dso error </td></tr>
<tr><td class="paramname">bufsize</td><td>The size of the provided buffer </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="gaedc8609c2bb76e5c43f2df2281a9d8b6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaedc8609c2bb76e5c43f2df2281a9d8b6">◆ </a></span>apr_dso_load()</h2>
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<div class="memproto">
<table class="memname">
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<td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_dso_load </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> ** </td>
<td class="paramname"><em>res_handle</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td>
<td class="paramname"><em>ctx</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Load a DSO library. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">res_handle</td><td>Location to store new handle for the DSO. </td></tr>
<tr><td class="paramname">path</td><td>Path to the DSO library </td></tr>
<tr><td class="paramname">ctx</td><td>Pool to use. </td></tr>
</table>
</dd>
</dl>
<dl class="bug"><dt><b><a class="el" href="bug.html#_bug000001">Bug:</a></b></dt><dd>We aught to provide an alternative to RTLD_GLOBAL, which is the only supported method of loading DSOs today. </dd></dl>
</div>
</div>
<a id="gae84cd7041976787d73a9558e3393b97c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gae84cd7041976787d73a9558e3393b97c">◆ </a></span>apr_dso_sym()</h2>
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<td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_dso_sym </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__apr__dso.html#gaf1aa0a039e8003586cfdfbc4ac57e775">apr_dso_handle_sym_t</a> * </td>
<td class="paramname"><em>ressym</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> * </td>
<td class="paramname"><em>handle</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>symname</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Load a symbol from a DSO handle. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ressym</td><td>Location to store the loaded symbol </td></tr>
<tr><td class="paramname">handle</td><td>handle to load the symbol from. </td></tr>
<tr><td class="paramname">symname</td><td>Name of the symbol to load. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="ga4c7b1b4e98a5d23c56182ece047fbb7b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga4c7b1b4e98a5d23c56182ece047fbb7b">◆ </a></span>apr_dso_unload()</h2>
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<table class="memname">
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<td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_dso_unload </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__apr__dso.html#ga85e7e28490d026aeed78bd78e9933472">apr_dso_handle_t</a> * </td>
<td class="paramname"><em>handle</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Close a DSO library. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">handle</td><td>handle to close. </td></tr>
</table>
</dd>
</dl>
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