summaryrefslogtreecommitdiff
path: root/ohmd/ohm-main.c
blob: fd615bd7be72d43580732d89a109d2ad77bf0826 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/*
 * Copyright (C) 2007 Richard Hughes <richard@hughsie.com>
 *
 * Licensed under the GNU Lesser General Public License Version 2
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <dbus/dbus-glib.h>
#include <dbus/dbus-glib-lowlevel.h>

#include "ohm-debug.h"
#include "ohm-common.h"
#include "ohm-manager.h"
#include "ohm-dbus-manager.h"

static GMainLoop *loop;

/**
 * ohm_object_register:
 * @connection: What we want to register to
 * @object: The GObject we want to register
 *
 * Register org.freedesktop.ohm on the session bus.
 * This function MUST be called before DBUS service will work.
 *
 * Return value: success
 **/
static gboolean
ohm_object_register (DBusGConnection *connection,
		     GObject	     *object)
{
	DBusGProxy *bus_proxy = NULL;
	GError *error = NULL;
	guint request_name_result;
	gboolean ret;

	bus_proxy = dbus_g_proxy_new_for_name (connection,
					       DBUS_SERVICE_DBUS,
					       DBUS_PATH_DBUS,
					       DBUS_INTERFACE_DBUS);

	ret = dbus_g_proxy_call (bus_proxy, "RequestName", &error,
				 G_TYPE_STRING, OHM_DBUS_SERVICE,
				 G_TYPE_UINT, 0,
				 G_TYPE_INVALID,
				 G_TYPE_UINT, &request_name_result,
				 G_TYPE_INVALID);
	if (error) {
		ohm_debug ("ERROR: %s", error->message);
		g_error_free (error);
	}
	if (ret == FALSE) {
		/* abort as the DBUS method failed */
		g_warning ("RequestName failed!");
		return FALSE;
	}

	/* free the bus_proxy */
	g_object_unref (G_OBJECT (bus_proxy));

	/* already running */
 	if (request_name_result != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
		g_warning ("Already running!");
		return FALSE;
	}

	dbus_g_object_type_install_info (OHM_TYPE_MANAGER, &dbus_glib_ohm_manager_object_info);
	dbus_g_connection_register_g_object (connection, OHM_DBUS_PATH_MANAGER, object);

	return TRUE;
}


void sighandler(int signum)
{
	if (signum == SIGINT) {
		g_debug ("Caught SIGINT, exiting");
		g_main_loop_quit (loop);
	}
}

/**
 * main:
 **/
int
main (int argc, char *argv[])
{
	DBusGConnection *connection;
	gboolean verbose = FALSE;
	gboolean no_daemon = FALSE;
	gboolean timed_exit = FALSE;
	gboolean g_fatal_warnings = FALSE;
	gboolean g_fatal_critical = FALSE;
	OhmManager *manager = NULL;
	GError *error = NULL;
	GOptionContext *context;

	const GOptionEntry entries[] = {
		{ "no-daemon", '\0', 0, G_OPTION_ARG_NONE, &no_daemon,
		  N_("Do not daemonize"), NULL },
		{ "verbose", '\0', 0, G_OPTION_ARG_NONE, &verbose,
		  N_("Show extra debugging information"), NULL },
		{ "timed-exit", '\0', 0, G_OPTION_ARG_NONE, &timed_exit,
		  N_("Exit after a small delay (for debugging)"), NULL },
		{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &g_fatal_warnings,
		  N_("Make all warnings fatal"), NULL },
		{ "g-fatal-critical", 0, 0, G_OPTION_ARG_NONE, &g_fatal_critical,
		  N_("Make all critical warnings fatal"), NULL },
		{ NULL}
	};

	context = g_option_context_new (OHM_NAME);
	bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
	textdomain (GETTEXT_PACKAGE);
	g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
	g_option_context_parse (context, &argc, &argv, &error);
	g_option_context_free (context);

	if (g_fatal_warnings || g_fatal_critical)
	{
		GLogLevelFlags fatal_mask;
	
		g_debug("setting fatal warnings");
		fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
		fatal_mask |= (g_fatal_warnings?G_LOG_LEVEL_WARNING:0) | G_LOG_LEVEL_CRITICAL;
		g_log_set_always_fatal (fatal_mask);
	}

	g_type_init ();
	if (!g_thread_supported ())
		g_thread_init (NULL);
	dbus_g_thread_init ();

	/* we need to daemonize before we get a system connection */
	if (no_daemon == FALSE) {
		if (daemon (0, 0)) {
			g_error ("Could not daemonize.");
		}
	}
	ohm_debug_init (verbose);

	/* check dbus connections, exit if not valid */
	connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
	if (error) {
		g_warning ("%s", error->message);
		g_error_free (error);
		g_error ("This program cannot start until you start "
			 "the dbus system service.");
	}

	ohm_debug ("Creating manager");
	manager = ohm_manager_new ();
	if (!ohm_object_register (connection, G_OBJECT (manager))) {
		g_error ("%s failed to start.", OHM_NAME);
		return 0;
	}

	signal (SIGINT, sighandler);

	ohm_debug ("Idle");
	loop = g_main_loop_new (NULL, FALSE);

	/* Only timeout and close the mainloop if we have specified it
	 * on the command line */
	if (timed_exit == FALSE) {
		g_main_loop_run (loop);
	}

	g_object_unref (manager);
	dbus_g_connection_unref (connection);
	/*free memory used by dbus*/
	dbus_shutdown();

	return 0;
}