timedated: use libsystemd-bus instead of libdbus for bus communication

Among other things this also adds a few things necessary for the change:

- Considerably more powerful error returning APIs in libsystemd-bus

- Adapter for connecting an sd_bus to an sd_event

- As I reworked the PolicyKit logic to the new library I also made it
  asynchronous, so that PolicyKit requests of one user cannot block out
  another user anymore.

- We always use the macro names for common bus error. That way it is
  harder to mistype them since the compiler will notice

1 files changed, 30 insertions, 0 deletions

diff --git a/src/libsystemd-bus/event-util.h b/src/libsystemd-bus/event-util.h
new file mode 100644
index 0000000000..e58020dedf
--- /dev/null
+++ b/src/libsystemd-bus/event-util.h
@@ -0,0 +1,30 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 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 "util.h"
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(sd_event*, sd_event_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(sd_event_source*, sd_event_source_unref);
+
+#define _cleanup_event_unref_ _cleanup_(sd_event_unrefp)
+#define _cleanup_event_source_unref_ _cleanup_(sd_event_source_unrefp)