<!-- This comment will put IE 6, 7 and 8 in quirks mode --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Apache Portable Runtime: Signal Handling</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javaScript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body onload='searchBox.OnSelectItem(0);'> <!-- Generated by Doxygen 1.6.3 --> <script type="text/javascript"><!-- var searchBox = new SearchBox("searchBox", "search",false,'Search'); --></script> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li> <div id="MSearchBox" class="MSearchBoxInactive"> <img id="MSearchSelect" src="search/search.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" onkeyup="searchBox.OnSearchFieldChange(event)"/> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </div> </li> </ul> </div> </div> <div class="contents"> <h1>Signal Handling<br/> <small> [<a class="el" href="group___a_p_r.html">Apache Portability Runtime library</a>]</small> </h1><table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Typedefs</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">typedef void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a> (int)</td></tr> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__signal.html#ga77ecb509002eeb784c06014c635a9a5a">apr_signal</a> (int signo, <a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a> *func)</td></tr> <tr><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__signal.html#ga685b8a8e5e7a5067e3fe3456c5c1a150">apr_signal_description_get</a> (int signum)</td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__apr__signal.html#ga76f1701a2f33697425b3fa6fa44a192b">apr_signal_init</a> (<a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> *pglobal)</td></tr> <tr><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__signal.html#ga111744ccf1db400150bf7c14c2cfc312">apr_signal_block</a> (int signum)</td></tr> <tr><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__signal.html#ga9d8a1d786de4ace76f711806e9e34071">apr_signal_unblock</a> (int signum)</td></tr> </table> <hr/><h2>Typedef Documentation</h2> <a class="anchor" id="ga2afd99d29d57dc1358aeccedb714368a"></a><!-- doxytag: member="apr_signal.h::apr_sigfunc_t" ref="ga2afd99d29d57dc1358aeccedb714368a" args="(int)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">typedef void <a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a>(int)</td> </tr> </table> </div> <div class="memdoc"> <p>Function prototype for signal handlers </p> </div> </div> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga77ecb509002eeb784c06014c635a9a5a"></a><!-- doxytag: member="apr_signal.h::apr_signal" ref="ga77ecb509002eeb784c06014c635a9a5a" args="(int signo, apr_sigfunc_t *func)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a>* apr_signal </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>signo</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="group__apr__signal.html#ga2afd99d29d57dc1358aeccedb714368a">apr_sigfunc_t</a> * </td> <td class="paramname"> <em>func</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Set the signal handler function for a given signal </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>signo</em> </td><td>The signal (eg... SIGWINCH) </td></tr> <tr><td valign="top"></td><td valign="top"><em>func</em> </td><td>the function to get called </td></tr> </table> </dd> </dl> </div> </div> <a class="anchor" id="ga111744ccf1db400150bf7c14c2cfc312"></a><!-- doxytag: member="apr_signal.h::apr_signal_block" ref="ga111744ccf1db400150bf7c14c2cfc312" args="(int signum)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_signal_block </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>signum</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Block the delivery of a particular signal </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>signum</em> </td><td>The signal number </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>status </dd></dl> </div> </div> <a class="anchor" id="ga685b8a8e5e7a5067e3fe3456c5c1a150"></a><!-- doxytag: member="apr_signal.h::apr_signal_description_get" ref="ga685b8a8e5e7a5067e3fe3456c5c1a150" args="(int signum)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* apr_signal_description_get </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>signum</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Get the description for a specific signal number </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>signum</em> </td><td>The signal number </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>The description of the signal </dd></dl> </div> </div> <a class="anchor" id="ga76f1701a2f33697425b3fa6fa44a192b"></a><!-- doxytag: member="apr_signal.h::apr_signal_init" ref="ga76f1701a2f33697425b3fa6fa44a192b" args="(apr_pool_t *pglobal)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void apr_signal_init </td> <td>(</td> <td class="paramtype"><a class="el" href="group__apr__pools.html#gaf137f28edcf9a086cd6bc36c20d7cdfb">apr_pool_t</a> * </td> <td class="paramname"> <em>pglobal</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>APR-private function for initializing the signal package </p> </div> </div> <a class="anchor" id="ga9d8a1d786de4ace76f711806e9e34071"></a><!-- doxytag: member="apr_signal.h::apr_signal_unblock" ref="ga9d8a1d786de4ace76f711806e9e34071" args="(int signum)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__apr__errno.html#gaf76ee4543247e9fb3f3546203e590a6c">apr_status_t</a> apr_signal_unblock </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>signum</em></td> <td> ) </td> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Enable the delivery of a particular signal </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>signum</em> </td><td>The signal number </td></tr> </table> </dd> </dl> <dl class="return"><dt><b>Returns:</b></dt><dd>status </dd></dl> </div> </div> </div> <!--- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" 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