8bace23beb
- All internal source files (except "examples", which are not internal) should include "config.h" first. As also all internal source files should include "nm-default.h", let "config.h" be included by "nm-default.h" and include "nm-default.h" as first in every source file. We already wanted to include "nm-default.h" before other headers because it might contains some fixes (like "nm-glib.h" compatibility) that is required first. - After including "nm-default.h", we optinally allow for including the corresponding header file for the source file at hand. The idea is to ensure that each header file is self contained. - Don't include "config.h" or "nm-default.h" in any header file (except "nm-sd-adapt.h"). Public headers anyway must not include these headers, and internal headers are never included after "nm-default.h", as of the first previous point. - Include all internal headers with quotes instead of angle brackets. In practice it doesn't matter, because in our public headers we must include other headers with angle brackets. As we use our public headers also to compile our interal source files, effectively the result must be the same. Still do it for consistency. - Except for <config.h> itself. Include it with angle brackets as suggested by https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
135 lines
4.1 KiB
C
135 lines
4.1 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 NM state via D-Bus "StateChanged" signal on
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* "org.freedesktop.NetworkManager" object.
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* It uses GDBus and the libnm headers.
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* You don't need to have the NetworkManager devel packages installed. You can just
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* grab nm-dbus-interface.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` `pkg-config --cflags libnm` 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 <nm-dbus-interface.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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#if !GLIB_CHECK_VERSION (2, 35, 0)
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/* Initialize GType system */
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g_type_init ();
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#endif
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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_dbus_error_strip_remote_error (error);
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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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