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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">glibmm
 <span id="projectnumber">2.42.0</span>
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<li class="navelem"><a class="el" href="namespaceGlib.html">Glib</a></li><li class="navelem"><a class="el" href="classGlib_1_1SignalIO.html">SignalIO</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
<a href="classGlib_1_1SignalIO-members.html">List of all members</a> </div>
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<div class="title">Glib::SignalIO Class Reference<div class="ingroups"><a class="el" href="group__MainLoop.html">The Main Event Loop</a></div></div> </div>
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<p><code>#include <glibmm/main.h></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ac205b21234d26094e75e0931c968c5d2"><td class="memItemLeft" align="right" valign="top"><a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1SignalIO.html#ac205b21234d26094e75e0931c968c5d2">connect</a> (const <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/classsigc_1_1slot.html">sigc::slot</a>< bool, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> >& slot, int fd, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> condition, int priority=<a class="el" href="namespaceGlib.html#a0c450f82b9e34689e2dda2038ba7834fa597ed3aa6067516c9c752896f3816b5e">PRIORITY_DEFAULT</a>)</td></tr>
<tr class="memdesc:ac205b21234d26094e75e0931c968c5d2"><td class="mdescLeft"> </td><td class="mdescRight">Connects an I/O handler that watches a file descriptor. <a href="#ac205b21234d26094e75e0931c968c5d2">More...</a><br /></td></tr>
<tr class="separator:ac205b21234d26094e75e0931c968c5d2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a779227bae6390b055243d1f3083a5388"><td class="memItemLeft" align="right" valign="top"><a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGlib_1_1SignalIO.html#a779227bae6390b055243d1f3083a5388">connect</a> (const <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/classsigc_1_1slot.html">sigc::slot</a>< bool, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> >& slot, const <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGlib_1_1IOChannel.html">IOChannel</a> >& channel, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> condition, int priority=<a class="el" href="namespaceGlib.html#a0c450f82b9e34689e2dda2038ba7834fa597ed3aa6067516c9c752896f3816b5e">PRIORITY_DEFAULT</a>)</td></tr>
<tr class="memdesc:a779227bae6390b055243d1f3083a5388"><td class="mdescLeft"> </td><td class="mdescRight">Connects an I/O handler that watches an I/O channel. <a href="#a779227bae6390b055243d1f3083a5388">More...</a><br /></td></tr>
<tr class="separator:a779227bae6390b055243d1f3083a5388"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="ac205b21234d26094e75e0931c968c5d2"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> Glib::SignalIO::connect </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/classsigc_1_1slot.html">sigc::slot</a>< bool, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> >& </td>
<td class="paramname"><em>slot</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>fd</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> </td>
<td class="paramname"><em>condition</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>priority</em> = <code><a class="el" href="namespaceGlib.html#a0c450f82b9e34689e2dda2038ba7834fa597ed3aa6067516c9c752896f3816b5e">PRIORITY_DEFAULT</a></code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Connects an I/O handler that watches a file descriptor. </p>
<div class="fragment"><div class="line"><span class="keywordtype">bool</span> io_handler(<a class="code" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">Glib::IOCondition</a> io_condition) { ... }</div>
<div class="line"><a class="code" href="group__MainLoop.html#gaf391654b755a32169d18be4835677376">Glib::signal_io</a>().<a class="code" href="classGlib_1_1SignalIO.html#ac205b21234d26094e75e0931c968c5d2">connect</a>(<a class="codeRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/group__ptr__fun.html#ga9c80de72f656fb05e81fda622dddc863">sigc::ptr_fun</a>(&io_handler), fd, <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa38ee764d957d52ccd85688c27778daf">Glib::IO_IN</a> | <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa290fc1a996ead6c153515d4771fcdb1">Glib::IO_HUP</a>);</div>
</div><!-- fragment --><p> is equivalent to: </p><div class="fragment"><div class="line"><span class="keywordtype">bool</span> io_handler(<a class="code" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">Glib::IOCondition</a> io_condition) { ... }</div>
<div class="line"><span class="keyword">const</span> <a class="code" href="classGlib_1_1RefPtr.html">Glib::RefPtr<Glib::IOSource></a> io_source = <a class="code" href="classGlib_1_1Source.html#aeaffb039abf99982d7a89403bca71569">Glib::IOSource::create</a>(fd, <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa38ee764d957d52ccd85688c27778daf">Glib::IO_IN</a> | <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa290fc1a996ead6c153515d4771fcdb1">Glib::IO_HUP</a>);</div>
<div class="line">io_source-><a class="code" href="classGlib_1_1IOSource.html#a2fc25e8e5d5ff2a1388226b92a6d7164">connect</a>(<a class="codeRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/group__ptr__fun.html#ga9c80de72f656fb05e81fda622dddc863">sigc::ptr_fun</a>(&io_handler));</div>
<div class="line">io_source-><a class="code" href="classGlib_1_1Source.html#aa61d28e643f2b286203b0d8e533b2c88">attach</a>(<a class="code" href="classGlib_1_1MainContext.html#a1502cbed045a9fb27d18c6975e1d255d">Glib::MainContext::get_default</a>());</div>
</div><!-- fragment --><p>This method is not thread-safe. You should call it, or manipulate the returned <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> object, only from the thread where the <a class="el" href="classGlib_1_1SignalIO.html">SignalIO</a> object's <a class="el" href="classGlib_1_1MainContext.html" title="Main context. ">MainContext</a> runs.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">slot</td><td>A slot to call when polling <em>fd</em> results in an event that matches <em>condition</em>. The event will be passed as a parameter to <em>slot</em>. If <code>io_handler()</code> returns <code>false</code> the handler is disconnected. </td></tr>
<tr><td class="paramname">fd</td><td>The file descriptor (or a <code>HANDLE</code> on Win32 systems) to watch. </td></tr>
<tr><td class="paramname">condition</td><td>The conditions to watch for. </td></tr>
<tr><td class="paramname">priority</td><td>The priority of the new event source. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A connection handle, which can be used to disconnect the handler. </dd></dl>
</div>
</div>
<a class="anchor" id="a779227bae6390b055243d1f3083a5388"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> Glib::SignalIO::connect </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/classsigc_1_1slot.html">sigc::slot</a>< bool, <a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> >& </td>
<td class="paramname"><em>slot</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classGlib_1_1RefPtr.html">Glib::RefPtr</a>< <a class="el" href="classGlib_1_1IOChannel.html">IOChannel</a> >& </td>
<td class="paramname"><em>channel</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">IOCondition</a> </td>
<td class="paramname"><em>condition</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>priority</em> = <code><a class="el" href="namespaceGlib.html#a0c450f82b9e34689e2dda2038ba7834fa597ed3aa6067516c9c752896f3816b5e">PRIORITY_DEFAULT</a></code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Connects an I/O handler that watches an I/O channel. </p>
<div class="fragment"><div class="line"><span class="keywordtype">bool</span> io_handler(<a class="code" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">Glib::IOCondition</a> io_condition) { ... }</div>
<div class="line"><a class="code" href="group__MainLoop.html#gaf391654b755a32169d18be4835677376">Glib::signal_io</a>().<a class="code" href="classGlib_1_1SignalIO.html#ac205b21234d26094e75e0931c968c5d2">connect</a>(<a class="codeRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/group__ptr__fun.html#ga9c80de72f656fb05e81fda622dddc863">sigc::ptr_fun</a>(&io_handler), channel, <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa38ee764d957d52ccd85688c27778daf">Glib::IO_IN</a> | <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa290fc1a996ead6c153515d4771fcdb1">Glib::IO_HUP</a>);</div>
</div><!-- fragment --><p> is equivalent to: </p><div class="fragment"><div class="line"><span class="keywordtype">bool</span> io_handler(<a class="code" href="group__glibmmEnums.html#gabd96381793b70d4ae32c725926990918">Glib::IOCondition</a> io_condition) { ... }</div>
<div class="line"><span class="keyword">const</span> <a class="code" href="classGlib_1_1RefPtr.html">Glib::RefPtr<Glib::IOSource></a> io_source = <a class="code" href="classGlib_1_1Source.html#aeaffb039abf99982d7a89403bca71569">Glib::IOSource::create</a>(channel, <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa38ee764d957d52ccd85688c27778daf">Glib::IO_IN</a> | <a class="code" href="namespaceGlib.html#gabd96381793b70d4ae32c725926990918aa290fc1a996ead6c153515d4771fcdb1">Glib::IO_HUP</a>);</div>
<div class="line">io_source-><a class="code" href="classGlib_1_1IOSource.html#a2fc25e8e5d5ff2a1388226b92a6d7164">connect</a>(<a class="codeRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/group__ptr__fun.html#ga9c80de72f656fb05e81fda622dddc863">sigc::ptr_fun</a>(&io_handler));</div>
<div class="line">io_source-><a class="code" href="classGlib_1_1Source.html#aa61d28e643f2b286203b0d8e533b2c88">attach</a>(<a class="code" href="classGlib_1_1MainContext.html#a1502cbed045a9fb27d18c6975e1d255d">Glib::MainContext::get_default</a>());</div>
</div><!-- fragment --><p>This method is not thread-safe. You should call it, or manipulate the returned <a class="elRef" doxygen="/opt/gnome/share/doc/libsigc++-2.0/reference/libsigc++-2.0.tag:http://library.gnome.org/devel/libsigc++/unstable/" href="http://library.gnome.org/devel/libsigc++/unstable/structsigc_1_1connection.html">sigc::connection</a> object, only from the thread where the <a class="el" href="classGlib_1_1SignalIO.html">SignalIO</a> object's <a class="el" href="classGlib_1_1MainContext.html" title="Main context. ">MainContext</a> runs.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">slot</td><td>A slot to call when polling <em>channel</em> results in an event that matches <em>condition</em>. The event will be passed as a parameter to <em>slot</em>. If <code>io_handler()</code> returns <code>false</code> the handler is disconnected. </td></tr>
<tr><td class="paramname">channel</td><td>The <a class="el" href="classGlib_1_1IOChannel.html" title="IOChannel aims to provide portable I/O support for files, pipes and sockets, and to integrate them wi...">IOChannel</a> object to watch. </td></tr>
<tr><td class="paramname">condition</td><td>The conditions to watch for. </td></tr>
<tr><td class="paramname">priority</td><td>The priority of the new event source. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A connection handle, which can be used to disconnect the handler. </dd></dl>
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