diff options
Diffstat (limited to 'src/cgroups-agent')
| -rw-r--r-- | src/cgroups-agent/Makefile | 28 | ||||
| -rw-r--r-- | src/cgroups-agent/cgroups-agent.c | 65 |
2 files changed, 93 insertions, 0 deletions
diff --git a/src/cgroups-agent/Makefile b/src/cgroups-agent/Makefile new file mode 100644 index 0000000000..6ca248605f --- /dev/null +++ b/src/cgroups-agent/Makefile @@ -0,0 +1,28 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# 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/>. +systemd_cgroups_agent_SOURCES = \ + src/cgroups-agent/cgroups-agent.c + +systemd_cgroups_agent_LDADD = \ + libshared.la + diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c new file mode 100644 index 0000000000..aadfba0707 --- /dev/null +++ b/src/cgroups-agent/cgroups-agent.c @@ -0,0 +1,65 @@ +/*** + 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; +} |