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, 5 insertions, 7 deletions

diff --git a/src/libsystemd-bus/bus-internal.h b/src/libsystemd-bus/bus-internal.h
index 31e10b2c27..1726b61841 100644
--- a/src/libsystemd-bus/bus-internal.h
+++ b/src/libsystemd-bus/bus-internal.h
@@ -240,14 +240,12 @@ struct sd_bus {
         uint64_t hello_flags;
 
         uint64_t match_cookie;
-};
-
-static inline void bus_unrefp(sd_bus **b) {
-        sd_bus_unref(*b);
-}
 
-#define _cleanup_bus_unref_ __attribute__((cleanup(bus_unrefp)))
-#define _cleanup_bus_error_free_ __attribute__((cleanup(sd_bus_error_free)))
+        sd_event_source *input_io_event_source;
+        sd_event_source *output_io_event_source;
+        sd_event_source *time_event_source;
+        sd_event *event;
+};
 
 #define BUS_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC))