core: convert PID 1 to libsystemd-bus

This patch converts PID 1 to libsystemd-bus and thus drops the
dependency on libdbus. The only remaining code using libdbus is a test
case that validates our bus marshalling against libdbus' marshalling,
and this dependency can be turned off.

This patch also adds a couple of things to libsystem-bus, that are
necessary to make the port work:

- Synthesizing of "Disconnected" messages when bus connections are
  severed.

- Support for attaching multiple vtables for the same interface on the
  same path.

This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus
calls which used an inappropriate signature.

As a side effect we will now generate PropertiesChanged messages which
carry property contents, rather than just invalidation information.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/core/dbus-client-track.h b/src/core/dbus-client-track.h
new file mode 100644
index 0000000000..01676479b0
--- /dev/null
+++ b/src/core/dbus-client-track.h
@@ -0,0 +1,42 @@
+/*-*- 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 "sd-bus.h"
+#include "set.h"
+#include "manager.h"
+
+typedef struct BusTrackedClient {
+        Set *set;
+        sd_bus *bus;
+        char name[0];
+} BusTrackedClient;
+
+int bus_client_track(Set **s, sd_bus *bus, const char *name);
+
+int bus_client_untrack(Set *s, sd_bus *bus, const char *name);
+int bus_client_untrack_bus(Set *s, sd_bus *bus);
+
+void bus_client_track_free(Set *s);
+
+void bus_client_track_serialize(Manager *m, FILE *f, Set *s);
+int bus_client_track_deserialize_item(Manager *m, Set **s, const char *line);