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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>GNetworkMonitor: GIO Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="GIO Reference Manual"> <link rel="up" href="highlevel-socket.html" title="High-level network functionallity"> <link rel="prev" href="GThreadedSocketService.html" title="GThreadedSocketService"> <link rel="next" href="tls.html" title="TLS (SSL) support"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" align="left" class="shortcuts"> <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> <a href="#GNetworkMonitor.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> <a href="#GNetworkMonitor.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_prerequisites"> <span class="dim">|</span> <a href="#GNetworkMonitor.prerequisites" class="shortcut">Prerequisites</a></span><span id="nav_properties"> <span class="dim">|</span> <a href="#GNetworkMonitor.properties" class="shortcut">Properties</a></span><span id="nav_signals"> <span class="dim">|</span> <a href="#GNetworkMonitor.signals" class="shortcut">Signals</a></span> </td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="highlevel-socket.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="GThreadedSocketService.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="tls.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="GNetworkMonitor"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="GNetworkMonitor.top_of_page"></a>GNetworkMonitor</span></h2> <p>GNetworkMonitor — Network status monitor</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="GNetworkMonitor.functions"></a><h2>Functions</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="functions_proto_type"> <col class="functions_proto_name"> </colgroup> <tbody> <tr> <td class="function_type"> <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="returnvalue">GNetworkMonitor</span></a> * </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-default" title="g_network_monitor_get_default ()">g_network_monitor_get_default</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">gboolean</span> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-network-available" title="g_network_monitor_get_network_available ()">g_network_monitor_get_network_available</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">gboolean</span> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-network-metered" title="g_network_monitor_get_network_metered ()">g_network_monitor_get_network_metered</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">gboolean</span> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach" title="g_network_monitor_can_reach ()">g_network_monitor_can_reach</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-async" title="g_network_monitor_can_reach_async ()">g_network_monitor_can_reach_async</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">gboolean</span> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-finish" title="g_network_monitor_can_reach_finish ()">g_network_monitor_can_reach_finish</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity"><span class="returnvalue">GNetworkConnectivity</span></a> </td> <td class="function_name"> <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-connectivity" title="g_network_monitor_get_connectivity ()">g_network_monitor_get_connectivity</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GNetworkMonitor.properties"></a><h2>Properties</h2> <div class="informaltable"><table class="informaltable" border="0"> <colgroup> <col width="150px" class="properties_type"> <col width="300px" class="properties_name"> <col width="200px" class="properties_flags"> </colgroup> <tbody> <tr> <td class="property_type"><a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity"><span class="type">GNetworkConnectivity</span></a></td> <td class="property_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitor--connectivity" title="The “connectivity” property">connectivity</a></td> <td class="property_flags">Read</td> </tr> <tr> <td class="property_type"><span class="type">gboolean</span></td> <td class="property_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property">network-available</a></td> <td class="property_flags">Read</td> </tr> <tr> <td class="property_type"><span class="type">gboolean</span></td> <td class="property_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-metered" title="The “network-metered” property">network-metered</a></td> <td class="property_flags">Read</td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GNetworkMonitor.signals"></a><h2>Signals</h2> <div class="informaltable"><table class="informaltable" border="0"> <colgroup> <col width="150px" class="signal_proto_type"> <col width="300px" class="signal_proto_name"> <col width="200px" class="signal_proto_flags"> </colgroup> <tbody><tr> <td class="signal_type"><span class="returnvalue">void</span></td> <td class="signal_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitor-network-changed" title="The “network-changed” signal">network-changed</a></td> <td class="signal_flags">Run Last</td> </tr></tbody> </table></div> </div> <div class="refsect1"> <a name="GNetworkMonitor.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="other_proto_type"> <col class="other_proto_name"> </colgroup> <tbody> <tr> <td class="datatype_keyword"> </td> <td class="function_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitor-struct" title="GNetworkMonitor">GNetworkMonitor</a></td> </tr> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="GNetworkMonitor.html#GNetworkMonitorInterface" title="struct GNetworkMonitorInterface">GNetworkMonitorInterface</a></td> </tr> <tr> <td class="define_keyword">#define</td> <td class="function_name"><a class="link" href="GNetworkMonitor.html#G-NETWORK-MONITOR-EXTENSION-POINT-NAME:CAPS" title="G_NETWORK_MONITOR_EXTENSION_POINT_NAME">G_NETWORK_MONITOR_EXTENSION_POINT_NAME</a></td> </tr> <tr> <td class="datatype_keyword">enum</td> <td class="function_name"><a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity">GNetworkConnectivity</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="GNetworkMonitor.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="screen"> GEnum <span class="lineart">╰──</span> GNetworkConnectivity GInterface <span class="lineart">╰──</span> GNetworkMonitor </pre> </div> <div class="refsect1"> <a name="GNetworkMonitor.prerequisites"></a><h2>Prerequisites</h2> <p> GNetworkMonitor requires <a class="link" href="GInitable.html" title="GInitable">GInitable</a> and GObject.</p> </div> <div class="refsect1"> <a name="GNetworkMonitor.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <gio/gio.h> </pre> </div> <div class="refsect1"> <a name="GNetworkMonitor.description"></a><h2>Description</h2> <p><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> provides an easy-to-use cross-platform API for monitoring network connectivity. On Linux, the available implementations are based on the kernel's netlink interface and on NetworkManager.</p> <p>There is also an implementation for use inside Flatpak sandboxes.</p> </div> <div class="refsect1"> <a name="GNetworkMonitor.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="g-network-monitor-get-default"></a><h3>g_network_monitor_get_default ()</h3> <pre class="programlisting"><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="returnvalue">GNetworkMonitor</span></a> * g_network_monitor_get_default (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> <p>Gets the default <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> for the system.</p> <div class="refsect3"> <a name="g-network-monitor-get-default.returns"></a><h4>Returns</h4> <p>a <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a>. </p> <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-get-network-available"></a><h3>g_network_monitor_get_network_available ()</h3> <pre class="programlisting"><span class="returnvalue">gboolean</span> g_network_monitor_get_network_available (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>);</pre> <p>Checks if the network is available. "Available" here means that the system has a default route available for at least one of IPv4 or IPv6. It does not necessarily imply that the public Internet is reachable. See <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a> for more details.</p> <div class="refsect3"> <a name="g-network-monitor-get-network-available.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>the <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-network-monitor-get-network-available.returns"></a><h4>Returns</h4> <p> whether the network is available</p> </div> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-get-network-metered"></a><h3>g_network_monitor_get_network_metered ()</h3> <pre class="programlisting"><span class="returnvalue">gboolean</span> g_network_monitor_get_network_metered (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>);</pre> <p>Checks if the network is metered. See <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-metered" title="The “network-metered” property"><span class="type">“network-metered”</span></a> for more details.</p> <div class="refsect3"> <a name="g-network-monitor-get-network-metered.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>the <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-network-monitor-get-network-metered.returns"></a><h4>Returns</h4> <p> whether the connection is metered</p> </div> <p class="since">Since: <a class="link" href="api-index-2-46.html#api-index-2.46">2.46</a></p> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-can-reach"></a><h3>g_network_monitor_can_reach ()</h3> <pre class="programlisting"><span class="returnvalue">gboolean</span> g_network_monitor_can_reach (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>, <em class="parameter"><code><a class="link" href="GSocketConnectable.html" title="GSocketConnectable"><span class="type">GSocketConnectable</span></a> *connectable</code></em>, <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>, <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre> <p>Attempts to determine whether or not the host pointed to by <em class="parameter"><code>connectable</code></em> can be reached, without actually trying to connect to it.</p> <p>This may return <code class="literal">TRUE</code> even when <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a> is <code class="literal">FALSE</code>, if, for example, <em class="parameter"><code>monitor</code></em> can determine that <em class="parameter"><code>connectable</code></em> refers to a host on a local network.</p> <p>If <em class="parameter"><code>monitor</code></em> believes that an attempt to connect to <em class="parameter"><code>connectable</code></em> will succeed, it will return <code class="literal">TRUE</code>. Otherwise, it will return <code class="literal">FALSE</code> and set <em class="parameter"><code>error</code></em> to an appropriate error (such as <a class="link" href="gio-GIOError.html#G-IO-ERROR-HOST-UNREACHABLE:CAPS"><code class="literal">G_IO_ERROR_HOST_UNREACHABLE</code></a>).</p> <p>Note that although this does not attempt to connect to <em class="parameter"><code>connectable</code></em> , it may still block for a brief period of time (eg, trying to do multicast DNS on the local network), so if you do not want to block, you should use <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-async" title="g_network_monitor_can_reach_async ()"><code class="function">g_network_monitor_can_reach_async()</code></a>.</p> <div class="refsect3"> <a name="g-network-monitor-can-reach.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>a <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>connectable</p></td> <td class="parameter_description"><p>a <a class="link" href="GSocketConnectable.html" title="GSocketConnectable"><span class="type">GSocketConnectable</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>cancellable</p></td> <td class="parameter_description"><p>a <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a>, or <code class="literal">NULL</code>. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td> </tr> <tr> <td class="parameter_name"><p>error</p></td> <td class="parameter_description"><p>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-network-monitor-can-reach.returns"></a><h4>Returns</h4> <p> <code class="literal">TRUE</code> if <em class="parameter"><code>connectable</code></em> is reachable, <code class="literal">FALSE</code> if not.</p> </div> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-can-reach-async"></a><h3>g_network_monitor_can_reach_async ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> g_network_monitor_can_reach_async (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>, <em class="parameter"><code><a class="link" href="GSocketConnectable.html" title="GSocketConnectable"><span class="type">GSocketConnectable</span></a> *connectable</code></em>, <em class="parameter"><code><a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a> *cancellable</code></em>, <em class="parameter"><code><a class="link" href="GAsyncResult.html#GAsyncReadyCallback" title="GAsyncReadyCallback ()"><span class="type">GAsyncReadyCallback</span></a> callback</code></em>, <em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre> <p>Asynchronously attempts to determine whether or not the host pointed to by <em class="parameter"><code>connectable</code></em> can be reached, without actually trying to connect to it.</p> <p>For more details, see <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach" title="g_network_monitor_can_reach ()"><code class="function">g_network_monitor_can_reach()</code></a>.</p> <p>When the operation is finished, <em class="parameter"><code>callback</code></em> will be called. You can then call <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-finish" title="g_network_monitor_can_reach_finish ()"><code class="function">g_network_monitor_can_reach_finish()</code></a> to get the result of the operation.</p> <div class="refsect3"> <a name="g-network-monitor-can-reach-async.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>a <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>connectable</p></td> <td class="parameter_description"><p>a <a class="link" href="GSocketConnectable.html" title="GSocketConnectable"><span class="type">GSocketConnectable</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>cancellable</p></td> <td class="parameter_description"><p>a <a class="link" href="GCancellable.html" title="GCancellable"><span class="type">GCancellable</span></a>, or <code class="literal">NULL</code>. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td> </tr> <tr> <td class="parameter_name"><p>callback</p></td> <td class="parameter_description"><p>a <a class="link" href="GAsyncResult.html#GAsyncReadyCallback" title="GAsyncReadyCallback ()"><span class="type">GAsyncReadyCallback</span></a> to call when the request is satisfied. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid until first called."><span class="acronym">scope async</span></acronym>]</span></td> </tr> <tr> <td class="parameter_name"><p>user_data</p></td> <td class="parameter_description"><p>the data to pass to callback function. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-can-reach-finish"></a><h3>g_network_monitor_can_reach_finish ()</h3> <pre class="programlisting"><span class="returnvalue">gboolean</span> g_network_monitor_can_reach_finish (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>, <em class="parameter"><code><a class="link" href="GAsyncResult.html" title="GAsyncResult"><span class="type">GAsyncResult</span></a> *result</code></em>, <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre> <p>Finishes an async network connectivity test. See <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-async" title="g_network_monitor_can_reach_async ()"><code class="function">g_network_monitor_can_reach_async()</code></a>.</p> <div class="refsect3"> <a name="g-network-monitor-can-reach-finish.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>a <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>result</p></td> <td class="parameter_description"><p>a <a class="link" href="GAsyncResult.html" title="GAsyncResult"><span class="type">GAsyncResult</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>error</p></td> <td class="parameter_description"><p>return location for errors, or <code class="literal">NULL</code></p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="g-network-monitor-can-reach-finish.returns"></a><h4>Returns</h4> <p> <code class="literal">TRUE</code> if network is reachable, <code class="literal">FALSE</code> if not.</p> </div> </div> <hr> <div class="refsect2"> <a name="g-network-monitor-get-connectivity"></a><h3>g_network_monitor_get_connectivity ()</h3> <pre class="programlisting"><a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity"><span class="returnvalue">GNetworkConnectivity</span></a> g_network_monitor_get_connectivity (<em class="parameter"><code><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor</code></em>);</pre> <p>Gets a more detailed networking state than <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-network-available" title="g_network_monitor_get_network_available ()"><code class="function">g_network_monitor_get_network_available()</code></a>.</p> <p>If <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a> is <code class="literal">FALSE</code>, then the connectivity state will be <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-LOCAL:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_LOCAL</code></a>.</p> <p>If <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a> is <code class="literal">TRUE</code>, then the connectivity state will be <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-FULL:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_FULL</code></a> (if there is full Internet connectivity), <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-LIMITED:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_LIMITED</code></a> (if the host has a default route, but appears to be unable to actually reach the full Internet), or <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-PORTAL:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_PORTAL</code></a> (if the host is trapped behind a "captive portal" that requires some sort of login or acknowledgement before allowing full Internet access).</p> <p>Note that in the case of <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-LIMITED:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_LIMITED</code></a> and <a class="link" href="GNetworkMonitor.html#G-NETWORK-CONNECTIVITY-PORTAL:CAPS"><code class="literal">G_NETWORK_CONNECTIVITY_PORTAL</code></a>, it is possible that some sites are reachable but others are not. In this case, applications can attempt to connect to remote servers, but should gracefully fall back to their "offline" behavior if the connection attempt fails.</p> <div class="refsect3"> <a name="g-network-monitor-get-connectivity.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>the <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="g-network-monitor-get-connectivity.returns"></a><h4>Returns</h4> <p> the network connectivity state</p> </div> <p class="since">Since: <a class="link" href="api-index-2-44.html#api-index-2.44">2.44</a></p> </div> </div> <div class="refsect1"> <a name="GNetworkMonitor.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="GNetworkMonitor-struct"></a><h3>GNetworkMonitor</h3> <pre class="programlisting">typedef struct _GNetworkMonitor GNetworkMonitor;</pre> <p><a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> monitors the status of network connections and indicates when a possibly-user-visible change has occurred.</p> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="GNetworkMonitorInterface"></a><h3>struct GNetworkMonitorInterface</h3> <pre class="programlisting">struct GNetworkMonitorInterface { GTypeInterface g_iface; void (*network_changed) (GNetworkMonitor *monitor, gboolean network_available); gboolean (*can_reach) (GNetworkMonitor *monitor, GSocketConnectable *connectable, GCancellable *cancellable, GError **error); void (*can_reach_async) (GNetworkMonitor *monitor, GSocketConnectable *connectable, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data); gboolean (*can_reach_finish) (GNetworkMonitor *monitor, GAsyncResult *result, GError **error); }; </pre> <p>The virtual function table for <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a>.</p> <div class="refsect3"> <a name="GNetworkMonitorInterface.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p><em class="structfield"><code><a name="GNetworkMonitorInterface.network-changed"></a>network_changed</code></em> ()</p></td> <td class="struct_member_description"><p>the virtual function pointer for the GNetworkMonitor::network-changed signal.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><em class="structfield"><code><a name="GNetworkMonitorInterface.can-reach"></a>can_reach</code></em> ()</p></td> <td class="struct_member_description"><p>the virtual function pointer for <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach" title="g_network_monitor_can_reach ()"><code class="function">g_network_monitor_can_reach()</code></a></p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><em class="structfield"><code><a name="GNetworkMonitorInterface.can-reach-async"></a>can_reach_async</code></em> ()</p></td> <td class="struct_member_description"><p>the virtual function pointer for <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-async" title="g_network_monitor_can_reach_async ()"><code class="function">g_network_monitor_can_reach_async()</code></a></p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><em class="structfield"><code><a name="GNetworkMonitorInterface.can-reach-finish"></a>can_reach_finish</code></em> ()</p></td> <td class="struct_member_description"><p>the virtual function pointer for <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-finish" title="g_network_monitor_can_reach_finish ()"><code class="function">g_network_monitor_can_reach_finish()</code></a></p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="G-NETWORK-MONITOR-EXTENSION-POINT-NAME:CAPS"></a><h3>G_NETWORK_MONITOR_EXTENSION_POINT_NAME</h3> <pre class="programlisting">#define G_NETWORK_MONITOR_EXTENSION_POINT_NAME "gio-network-monitor" </pre> <p>Extension point for network status monitoring functionality. See Extending GIO.</p> <p class="since">Since: <a class="link" href="api-index-2-30.html#api-index-2.30">2.30</a></p> </div> <hr> <div class="refsect2"> <a name="GNetworkConnectivity"></a><h3>enum GNetworkConnectivity</h3> <p>The host's network connectivity state, as reported by <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a>.</p> <div class="refsect3"> <a name="GNetworkConnectivity.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="enum_members_name"> <col class="enum_members_description"> <col width="200px" class="enum_members_annotations"> </colgroup> <tbody> <tr> <td class="enum_member_name"><p><a name="G-NETWORK-CONNECTIVITY-LOCAL:CAPS"></a>G_NETWORK_CONNECTIVITY_LOCAL</p></td> <td class="enum_member_description"> <p>The host is not configured with a route to the Internet; it may or may not be connected to a local network.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-NETWORK-CONNECTIVITY-LIMITED:CAPS"></a>G_NETWORK_CONNECTIVITY_LIMITED</p></td> <td class="enum_member_description"> <p>The host is connected to a network, but does not appear to be able to reach the full Internet, perhaps due to upstream network problems.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-NETWORK-CONNECTIVITY-PORTAL:CAPS"></a>G_NETWORK_CONNECTIVITY_PORTAL</p></td> <td class="enum_member_description"> <p>The host is behind a captive portal and cannot reach the full Internet.</p> </td> <td class="enum_member_annotations"> </td> </tr> <tr> <td class="enum_member_name"><p><a name="G-NETWORK-CONNECTIVITY-FULL:CAPS"></a>G_NETWORK_CONNECTIVITY_FULL</p></td> <td class="enum_member_description"> <p>The host is connected to a network, and appears to be able to reach the full Internet.</p> </td> <td class="enum_member_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-2-44.html#api-index-2.44">2.44</a></p> </div> </div> <div class="refsect1"> <a name="GNetworkMonitor.property-details"></a><h2>Property Details</h2> <div class="refsect2"> <a name="GNetworkMonitor--connectivity"></a><h3>The <code class="literal">“connectivity”</code> property</h3> <pre class="programlisting"> “connectivity” <a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity"><span class="type">GNetworkConnectivity</span></a></pre> <p>More detailed information about the host's network connectivity. See <a class="link" href="GNetworkMonitor.html#g-network-monitor-get-connectivity" title="g_network_monitor_get_connectivity ()"><code class="function">g_network_monitor_get_connectivity()</code></a> and <a class="link" href="GNetworkMonitor.html#GNetworkConnectivity" title="enum GNetworkConnectivity"><span class="type">GNetworkConnectivity</span></a> for more details.</p> <p>Owner: GNetworkMonitor</p> <p>Flags: Read</p> <p>Default value: G_NETWORK_CONNECTIVITY_FULL</p> <p class="since">Since: <a class="link" href="api-index-2-44.html#api-index-2.44">2.44</a></p> </div> <hr> <div class="refsect2"> <a name="GNetworkMonitor--network-available"></a><h3>The <code class="literal">“network-available”</code> property</h3> <pre class="programlisting"> “network-available” <span class="type">gboolean</span></pre> <p>Whether the network is considered available. That is, whether the system has a default route for at least one of IPv4 or IPv6.</p> <p>Real-world networks are of course much more complicated than this; the machine may be connected to a wifi hotspot that requires payment before allowing traffic through, or may be connected to a functioning router that has lost its own upstream connectivity. Some hosts might only be accessible when a VPN is active. Other hosts might only be accessible when the VPN is not active. Thus, it is best to use <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach" title="g_network_monitor_can_reach ()"><code class="function">g_network_monitor_can_reach()</code></a> or <a class="link" href="GNetworkMonitor.html#g-network-monitor-can-reach-async" title="g_network_monitor_can_reach_async ()"><code class="function">g_network_monitor_can_reach_async()</code></a> to test for reachability on a host-by-host basis. (On the other hand, when the property is <code class="literal">FALSE</code>, the application can reasonably expect that no remote hosts at all are reachable, and should indicate this to the user in its UI.)</p> <p>See also <a class="link" href="GNetworkMonitor.html#GNetworkMonitor-network-changed" title="The “network-changed” signal"><span class="type">“network-changed”</span></a>.</p> <p>Owner: GNetworkMonitor</p> <p>Flags: Read</p> <p>Default value: FALSE</p> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> <hr> <div class="refsect2"> <a name="GNetworkMonitor--network-metered"></a><h3>The <code class="literal">“network-metered”</code> property</h3> <pre class="programlisting"> “network-metered” <span class="type">gboolean</span></pre> <p>Whether the network is considered metered. That is, whether the system has traffic flowing through the default connection that is subject to limitations set by service providers. For example, traffic might be billed by the amount of data transmitted, or there might be a quota on the amount of traffic per month. This is typical with tethered connections (3G and 4G) and in such situations, bandwidth intensive applications may wish to avoid network activity where possible if it will cost the user money or use up their limited quota.</p> <p>If more information is required about specific devices then the system network management API should be used instead (for example, NetworkManager or ConnMan).</p> <p>If this information is not available then no networks will be marked as metered.</p> <p>See also <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a>.</p> <p>Owner: GNetworkMonitor</p> <p>Flags: Read</p> <p>Default value: FALSE</p> <p class="since">Since: <a class="link" href="api-index-2-46.html#api-index-2.46">2.46</a></p> </div> </div> <div class="refsect1"> <a name="GNetworkMonitor.signal-details"></a><h2>Signal Details</h2> <div class="refsect2"> <a name="GNetworkMonitor-network-changed"></a><h3>The <code class="literal">“network-changed”</code> signal</h3> <pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a> *monitor, <span class="type">gboolean</span> network_available, <span class="type">gpointer</span> user_data)</pre> <p>Emitted when the network configuration changes.</p> <div class="refsect3"> <a name="GNetworkMonitor-network-changed.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>monitor</p></td> <td class="parameter_description"><p>a <a class="link" href="GNetworkMonitor.html" title="GNetworkMonitor"><span class="type">GNetworkMonitor</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>network_available</p></td> <td class="parameter_description"><p>the current value of <a class="link" href="GNetworkMonitor.html#GNetworkMonitor--network-available" title="The “network-available” property"><span class="type">“network-available”</span></a></p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>user_data</p></td> <td class="parameter_description"><p>user data set when the signal handler was connected.</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <p>Flags: Run Last</p> <p class="since">Since: <a class="link" href="api-index-2-32.html#api-index-2.32">2.32</a></p> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>