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, 1 insertions, 1 deletions

diff --git a/src/shared/install.h b/src/shared/install.h
index 3c2e162852..e87c57e48a 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -80,7 +80,7 @@ int unit_file_link(UnitFileScope scope, bool runtime, const char *root_dir, char
 int unit_file_preset(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
 int unit_file_mask(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], bool force, UnitFileChange **changes, unsigned *n_changes);
 int unit_file_unmask(UnitFileScope scope, bool runtime, const char *root_dir, char *files[], UnitFileChange **changes, unsigned *n_changes);
-int unit_file_set_default(UnitFileScope scope, const char *root_dir, const char *file, UnitFileChange **changes, unsigned *n_changes);
+int unit_file_set_default(UnitFileScope scope, const char *root_dir, const char *file, bool force, UnitFileChange **changes, unsigned *n_changes);
 int unit_file_get_default(UnitFileScope scope, const char *root_dir, char **name);
 
 UnitFileState unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename);