
RHEL 7.1 and Ubuntu 14.04 LTS both have this. https://bugzilla.gnome.org/show_bug.cgi?id=792323
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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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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* Copyright 2012 Red Hat, Inc.
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*/
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/*
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* This example monitors whether NM is running by checking if
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* "org.freedesktop.NetworkManager" is owned by a process on D-Bus.
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* It uses g_bus_watch_name().
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*
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* See also http://developer.gnome.org/gio/stable/gio-Watching-Bus-Names.html
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*
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* Standalone compilation:
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* gcc -Wall monitor-nm-running-gdbus.c -o monitor-nm-running-gdbus `pkg-config --libs --cflags gio-2.0`
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*/
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#include <gio/gio.h>
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static void
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on_name_appeared (GDBusConnection *connection,
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const gchar *name,
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const gchar *name_owner,
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gpointer user_data)
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{
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g_print ("Name '%s' on the system bus is owned by %s => NM is running\n",
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name, name_owner);
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}
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static void
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on_name_vanished (GDBusConnection *connection,
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const gchar *name,
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gpointer user_data)
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{
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g_print ("Name '%s' does not exist on the system bus => NM is not running\n", name);
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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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guint watcher_id;
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GMainLoop *loop;
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GBusNameWatcherFlags flags;
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g_print ("Monitor 'org.freedesktop.NetworkManager' D-Bus name\n");
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g_print ("===================================================\n");
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flags = G_BUS_NAME_WATCHER_FLAGS_NONE;
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/* Start to watch "org.freedesktop.NetworkManager" bus name */
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watcher_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
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"org.freedesktop.NetworkManager",
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flags,
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on_name_appeared,
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on_name_vanished,
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NULL,
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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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/* Stop watching the name */
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g_bus_unwatch_name (watcher_id);
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return 0;
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}
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