266f3e269d
In sd-bus, the sd_bus_open_xyz() family of calls allocates a new bus, while sd_bus_default_xyz() family tries to reuse the thread's default bus. bus_open_transport() sometimes internally uses the former, sometimes the latter family, but suggests it only calls the former via its name. Hence, let's avoid this confusion, and generically rename the call to bus_connect_transport(). Similar for all related calls. And while we are at it, also change cgls + cgtop to do direct systemd connections where possible, since all they do is talk to systemd itself.
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdlib.h>
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#include "sd-bus.h"
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#include "log.h"
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#include "bus-util.h"
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int main(int argc, char *argv[]) {
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_cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
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int r;
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if (argc != 2) {
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log_error("Incorrect number of arguments.");
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return EXIT_FAILURE;
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}
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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/* We send this event to the private D-Bus socket and then the
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* system instance will forward this to the system bus. We do
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* this to avoid an activation loop when we start dbus when we
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* are called when the dbus service is shut down. */
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r = bus_connect_system_systemd(&bus);
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if (r < 0) {
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/* If we couldn't connect we assume this was triggered
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* while systemd got restarted/transitioned from
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* initrd to the system, so let's ignore this */
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log_debug_errno(r, "Failed to get D-Bus connection: %m");
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return EXIT_FAILURE;
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}
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r = sd_bus_emit_signal(bus,
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"/org/freedesktop/systemd1/agent",
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"org.freedesktop.systemd1.Agent",
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"Released",
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"s", argv[1]);
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if (r < 0) {
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log_debug_errno(r, "Failed to send signal message on private connection: %m");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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