tree-wide: install matches asynchronously

Let's remove a number of synchronization points from our service
startups: let's drop synchronous match installation, and let's opt for
asynchronous instead.

Also, let's use sd_bus_match_signal() instead of sd_bus_add_match()
where we can.

1 files changed, 1 insertions, 3 deletions

diff --git a/src/libelogind/sd-bus/bus-track.c b/src/libelogind/sd-bus/bus-track.c
index ab22d6e4d..919cebda0 100644
--- a/src/libelogind/sd-bus/bus-track.c
+++ b/src/libelogind/sd-bus/bus-track.c
@@ -259,9 +259,7 @@ _public_ int sd_bus_track_add_name(sd_bus_track *track, const char *name) {
 
         bus_track_remove_from_queue(track); /* don't dispatch this while we work in it */
 
-        track->n_adding++; /* make sure we aren't dispatched while we synchronously add this match */
-        r = sd_bus_add_match(track->bus, &n->slot, match, on_name_owner_changed, track);
-        track->n_adding--;
+        r = sd_bus_add_match_async(track->bus, &n->slot, match, on_name_owner_changed, NULL, track);
         if (r < 0) {
                 bus_track_add_to_queue(track);
                 return r;