event: rework sd-event exit logic

With this change a failing event source handler will not cause the
entire event loop to fail. Instead, we just disable the specific event
source, log a message at debug level and go on.

This also introduces a new concept of "exit code" which can be stored in
the event loop and is returned by sd_event_loop(). We also rename "quit"
to "exit" everywhere else.

Altogether this should make things more robus and keep errors local
while still providing a way to return event loop errors in a clear way.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libsystemd-bus/bus-util.h b/src/libsystemd-bus/bus-util.h
index 9d4923794d..9a90c2a1e0 100644
--- a/src/libsystemd-bus/bus-util.h
+++ b/src/libsystemd-bus/bus-util.h
@@ -52,7 +52,7 @@ int bus_map_all_properties(sd_bus *bus,
                            const struct bus_properties_map *map,
                            void *userdata);
 
-int bus_async_unregister_and_quit(sd_event *e, sd_bus *bus, const char *name);
+int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name);
 
 int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout);