summaryrefslogtreecommitdiff
path: root/src/systemd-cgroups-agent
diff options
context:
space:
mode:
Diffstat (limited to 'src/systemd-cgroups-agent')
-rw-r--r--src/systemd-cgroups-agent/Makefile32
-rw-r--r--src/systemd-cgroups-agent/cgroups-agent.c65
2 files changed, 97 insertions, 0 deletions
diff --git a/src/systemd-cgroups-agent/Makefile b/src/systemd-cgroups-agent/Makefile
new file mode 100644
index 0000000000..5c7d9d03ab
--- /dev/null
+++ b/src/systemd-cgroups-agent/Makefile
@@ -0,0 +1,32 @@
+# -*- 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/>.
+include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk
+include $(topsrcdir)/build-aux/Makefile.head.mk
+
+systemd_cgroups_agent_SOURCES = \
+ src/cgroups-agent/cgroups-agent.c
+
+systemd_cgroups_agent_LDADD = \
+ libshared.la
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/systemd-cgroups-agent/cgroups-agent.c b/src/systemd-cgroups-agent/cgroups-agent.c
new file mode 100644
index 0000000000..79098b5f2c
--- /dev/null
+++ b/src/systemd-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 <systemd/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;
+}