cgroups-agent.c revision 4afd3348c7506dd1d36305b7bcb9feb8952b9d6b
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdlib.h>
#include "sd-bus.h"
#include "bus-util.h"
#include "log.h"
int main(int argc, char *argv[]) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
if (argc != 2) {
log_error("Incorrect number of arguments.");
return EXIT_FAILURE;
}
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
/* We send this event to the private D-Bus socket and then the
* system instance will forward this to the system bus. We do
* this to avoid an activation loop when we start dbus when we
* are called when the dbus service is shut down. */
r = bus_connect_system_systemd(&bus);
if (r < 0) {
/* If we couldn't connect we assume this was triggered
* while systemd got restarted/transitioned from
* initrd to the system, so let's ignore this */
log_debug_errno(r, "Failed to get D-Bus connection: %m");
return EXIT_FAILURE;
}
r = sd_bus_emit_signal(bus,
"/org/freedesktop/systemd1/agent",
"org.freedesktop.systemd1.Agent",
"Released",
"s", argv[1]);
if (r < 0) {
log_debug_errno(r, "Failed to send signal message on private connection: %m");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}