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/*
* Copyright (C) 2008 Intel Corporation.
*
* Author: Ross Burton <ross@linux.intel.com>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <dbus/dbus.h>
static char *interface, *member, *path;
static void
alarm_handler (int signum)
{
fprintf(stderr, "Timeout waiting for %s.%s\n", interface, member);
exit (EXIT_SUCCESS);
}
static DBusHandlerResult
filter (DBusConnection *conn, DBusMessage *message, void *user_data)
{
/* If the interface matches */
if (strcmp (interface, dbus_message_get_interface (message)) == 0)
/* And the member matches */
if (strcmp (member, dbus_message_get_member (message)) == 0)
/* And the path is NULL or matches */
if (path == NULL || strcmp (path, dbus_message_get_path (message)) == 0)
/* Then exit */
exit (EXIT_SUCCESS);
return DBUS_HANDLER_RESULT_HANDLED;
}
int
main (int argc, char **argv)
{
DBusError error = DBUS_ERROR_INIT;
DBusConnection *conn;
char *match = NULL;
if (argc < 3 || argc > 4) {
fprintf (stderr, "$ dbus-wait <INTERFACE> <MEMBER> [PATH]\n");
return EXIT_FAILURE;
}
signal (SIGALRM, alarm_handler);
alarm (60);
/* TODO: allow system or session */
conn = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
if (!conn) {
fprintf (stderr, "Cannot get system bus: %s\n", error.message);
dbus_error_free (&error);
return EXIT_FAILURE;
}
switch (argc) {
case 3:
interface = argv[1];
member = argv[2];
path = NULL;
asprintf (&match, "type='signal',interface='%s',member='%s'", interface, member);
break;
case 4:
interface = argv[1];
member = argv[2];
path = argv[3];
asprintf (&match, "type='signal',interface='%s',member='%s',path='%s'", interface, member, path);
break;
}
dbus_bus_add_match (conn, match, &error);
free (match);
if (dbus_error_is_set (&error)) {
fprintf (stderr, "Cannot add match: %s\n", error.message);
dbus_error_free (&error);
return EXIT_FAILURE;
}
dbus_connection_add_filter (conn, filter, NULL, NULL);
while (dbus_connection_read_write_dispatch (conn, -1))
;
dbus_connection_unref (conn);
return EXIT_SUCCESS;
}
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