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https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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examples: add C example for monitoring overall NetworkManager state
This commit is contained in:
Jiří Klimeš
parent
fe29aa967c
commit
0c83e6e3b1
2 changed files with 140 additions and 2 deletions
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@ -15,7 +15,8 @@ noinst_PROGRAMS = \
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list-connections-libnm-glib \
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get-ap-info-libnm-glib \
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monitor-nm-running-dbus-glib \
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monitor-nm-running-GDBus
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monitor-nm-running-GDBus \
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monitor-nm-state-GDBus
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add_connection_dbus_glib_SOURCES = add-connection-dbus-glib.c
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add_connection_dbus_glib_LDADD = \
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@ -65,6 +66,10 @@ monitor_nm_running_GDBus_SOURCES = monitor-nm-running-GDBus.c
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monitor_nm_running_GDBus_LDADD = \
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$(GIO_LIBS)
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monitor_nm_state_GDBus_SOURCES = monitor-nm-state-GDBus.c
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monitor_nm_state_GDBus_LDADD = \
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$(GIO_LIBS)
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EXTRA_DIST = \
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add-connection-dbus-glib.c \
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add-connection-libnm-glib.c \
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@ -73,5 +78,6 @@ EXTRA_DIST = \
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list-connections-libnm-glib.c \
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get-ap-info-libnm-glib.c \
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monitor-nm-running-dbus-glib.c \
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monitor-nm-running-GDBus.c
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monitor-nm-running-GDBus.c \
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monitor-nm-state-GDBus.c
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132
examples/C/glib/monitor-nm-state-GDBus.c
Normal file
132
examples/C/glib/monitor-nm-state-GDBus.c
Normal file
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@ -0,0 +1,132 @@
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* vim: set ft=c ts=4 sts=4 sw=4 noexpandtab smartindent: */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2012 Red Hat, Inc.
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*/
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/*
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* This example monitors NM state via D-Bus "StateChanged" signal on
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* "org.freedesktop.NetworkManager" object.
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* It uses GDBus.
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* You don't need to have NetworkManager devel package installed. You can just
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* grab NetworkManager.h and put it in the path.
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*
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* Standalone compilation:
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* gcc -Wall `pkg-config --libs --cflags glib-2.0 gio-2.0 NetworkManager` monitor-nm-state-GDBus.c -o monitor-nm-state-GDBus
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*/
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#include <gio/gio.h>
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#include <string.h>
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#include <NetworkManager.h>
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static const char *
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nm_state_to_string (NMState state)
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{
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switch (state) {
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case NM_STATE_ASLEEP:
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return "asleep";
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case NM_STATE_CONNECTING:
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return "connecting";
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case NM_STATE_CONNECTED_LOCAL:
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return "connected (local only)";
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case NM_STATE_CONNECTED_SITE:
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return "connected (site only)";
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case NM_STATE_CONNECTED_GLOBAL:
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return "connected";
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case NM_STATE_DISCONNECTING:
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return "disconnecting";
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case NM_STATE_DISCONNECTED:
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return "disconnected";
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case NM_STATE_UNKNOWN:
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default:
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return "unknown";
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}
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}
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static void
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on_signal (GDBusProxy *proxy,
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gchar *sender_name,
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gchar *signal_name,
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GVariant *parameters,
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gpointer user_data)
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{
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guint32 new_state;
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/* Print all signals */
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//gchar *parameters_str;
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//parameters_str = g_variant_print (parameters, TRUE);
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//g_print (" *** Received Signal: %s: %s\n", signal_name, parameters_str);
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//g_free (parameters_str);
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/* We are only interested in "StateChanged" signal */
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if (strcmp (signal_name, "StateChanged") == 0) {
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GVariant *tmp = g_variant_get_child_value (parameters, 0);
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new_state = g_variant_get_uint32 (tmp);
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g_variant_unref (tmp);
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g_print ("NetworkManager state is: (%d) %s\n", new_state, nm_state_to_string ((NMState) new_state));
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}
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}
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int
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main (int argc, char *argv[])
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{
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GMainLoop *loop;
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GError *error = NULL;
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GDBusProxyFlags flags;
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GDBusProxy *proxy;
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/* Initialize GType system */
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g_type_init ();
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/* Monitor 'StateChanged' signal on 'org.freedesktop.NetworkManager' interface */
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g_print ("Monitor NetworkManager's state\n");
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g_print ("==============================\n");
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flags = G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES | G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
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proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
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flags,
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NULL, /* GDBusInterfaceInfo */
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"org.freedesktop.NetworkManager",
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"/org/freedesktop/NetworkManager",
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"org.freedesktop.NetworkManager",
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NULL, /* GCancellable */
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&error);
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if (proxy == NULL)
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{
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g_printerr ("Error creating D-Bus proxy: %s\n", error->message);
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g_error_free (error);
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return -1;
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}
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/* Connect to g-signal to receive signals from proxy (remote object) */
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g_signal_connect (proxy,
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"g-signal",
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G_CALLBACK (on_signal),
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NULL);
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/* Run main loop */
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loop = g_main_loop_new (NULL, FALSE);
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g_main_loop_run (loop);
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g_object_unref (proxy);
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return 0;
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}
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