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, 4 insertions, 20 deletions

diff --git a/src/core/dbus-cgroup.h b/src/core/dbus-cgroup.h
index e5ac4c3af7..c2a3910f3d 100644
--- a/src/core/dbus-cgroup.h
+++ b/src/core/dbus-cgroup.h
@@ -21,25 +21,9 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <dbus/dbus.h>
-
-#include "manager.h"
-#include "dbus-common.h"
+#include "sd-bus.h"
 #include "cgroup.h"
 
-#define BUS_CGROUP_CONTEXT_INTERFACE                                    \
-        "  <property name=\"CPUAccounting\" type=\"b\" access=\"read\"/>\n" \
-        "  <property name=\"CPUShares\" type=\"t\" access=\"read\"/>\n" \
-        "  <property name=\"BlockIOAccounting\" type=\"b\" access=\"read\"/>\n" \
-        "  <property name=\"BlockIOWeight\" type=\"t\" access=\"read\"/>\n" \
-        "  <property name=\"BlockIODeviceWeight\" type=\"a(st)\" access=\"read\"/>\n" \
-        "  <property name=\"BlockIOReadBandwidth=\" type=\"a(st)\" access=\"read\"/>\n" \
-        "  <property name=\"BlockIOWriteBandwidth=\" type=\"a(st)\" access=\"read\"/>\n" \
-        "  <property name=\"MemoryAccounting\" type=\"b\" access=\"read\"/>\n" \
-        "  <property name=\"MemoryLimit\" type=\"t\" access=\"read\"/>\n" \
-        "  <property name=\"DevicePolicy\" type=\"s\" access=\"read\"/>\n" \
-        "  <property name=\"DeviceAllow\" type=\"a(ss)\" access=\"read\"/>\n"
-
-extern const BusProperty bus_cgroup_context_properties[];
-
-int bus_cgroup_set_property(Unit *u, CGroupContext *c, const char *name, DBusMessageIter *i, UnitSetPropertiesMode mode, DBusError *error);
+extern const sd_bus_vtable bus_cgroup_vtable[];
+
+int bus_cgroup_set_property(Unit *u, CGroupContext *c, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error);