977ea352a0
These SPDX license identifiers are deprecated ([1]). Update them. [1] https://spdx.org/licenses/ sed \ -e '1 s%^/\* SPDX-License-Identifier: \(GPL-2.0\|LGPL-2.1\)+ \*/$%/* SPDX-License-Identifier: \1-or-later */%' \ -e '1,2 s%^\(--\|#\|//\) SPDX-License-Identifier: \(GPL-2.0\|LGPL-2.1\)+$%\1 SPDX-License-Identifier: \2-or-later%' \ -i \ $(git grep -l SPDX-License-Identifier -- \ ':(exclude)shared/c-*/' \ ':(exclude)shared/n-*/' \ ':(exclude)shared/systemd/src' \ ':(exclude)src/systemd/src')
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 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 char * name,
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const char * 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", name, name_owner);
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}
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static void
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on_name_vanished(GDBusConnection *connection, const char *name, 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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