Files
NetworkManager/examples/C/glib/monitor-nm-running-gdbus.c
Thomas Haller e1c7a2b5d0 all: don't use gchar/gshort/gint/glong but C types
We commonly don't use the glib typedefs for char/short/int/long,
but their C types directly.

    $ git grep '\<g\(char\|short\|int\|long\|float\|double\)\>' | wc -l
    587
    $ git grep '\<\(char\|short\|int\|long\|float\|double\)\>' | wc -l
    21114

One could argue that using the glib typedefs is preferable in
public API (of our glib based libnm library) or where it clearly
is related to glib, like during

  g_object_set (obj, PROPERTY, (gint) value, NULL);

However, that argument does not seem strong, because in practice we don't
follow that argument today, and seldomly use the glib typedefs.
Also, the style guide for this would be hard to formalize, because
"using them where clearly related to a glib" is a very loose suggestion.

Also note that glib typedefs will always just be typedefs of the
underlying C types. There is no danger of glib changing the meaning
of these typedefs (because that would be a major API break of glib).

A simple style guide is instead: don't use these typedefs.

No manual actions, I only ran the bash script:

  FILES=($(git ls-files '*.[hc]'))
  sed -i \
      -e 's/\<g\(char\|short\|int\|long\|float\|double\)\>\( [^ ]\)/\1\2/g' \
      -e 's/\<g\(char\|short\|int\|long\|float\|double\)\>  /\1   /g' \
      -e 's/\<g\(char\|short\|int\|long\|float\|double\)\>/\1/g' \
      "${FILES[@]}"
2018-07-11 12:02:06 +02:00

82 lines
2.6 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright 2012 Red Hat, Inc.
*/
/*
* This example monitors whether NM is running by checking if
* "org.freedesktop.NetworkManager" is owned by a process on D-Bus.
* It uses g_bus_watch_name().
*
* See also http://developer.gnome.org/gio/stable/gio-Watching-Bus-Names.html
*
* Standalone compilation:
* gcc -Wall monitor-nm-running-gdbus.c -o monitor-nm-running-gdbus `pkg-config --libs --cflags gio-2.0`
*/
#include <gio/gio.h>
static void
on_name_appeared (GDBusConnection *connection,
const char *name,
const char *name_owner,
gpointer user_data)
{
g_print ("Name '%s' on the system bus is owned by %s => NM is running\n",
name, name_owner);
}
static void
on_name_vanished (GDBusConnection *connection,
const char *name,
gpointer user_data)
{
g_print ("Name '%s' does not exist on the system bus => NM is not running\n", name);
}
int
main (int argc, char *argv[])
{
guint watcher_id;
GMainLoop *loop;
GBusNameWatcherFlags flags;
g_print ("Monitor 'org.freedesktop.NetworkManager' D-Bus name\n");
g_print ("===================================================\n");
flags = G_BUS_NAME_WATCHER_FLAGS_NONE;
/* Start to watch "org.freedesktop.NetworkManager" bus name */
watcher_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM,
"org.freedesktop.NetworkManager",
flags,
on_name_appeared,
on_name_vanished,
NULL,
NULL);
/* Run main loop */
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
/* Stop watching the name */
g_bus_unwatch_name (watcher_id);
return 0;
}