systemd sd_event_source_get_event 3 sd_event_source_get_event Retrieve the event loop of an event source #include <systemd/sd-event.h> sd_event* sd_event_source_get_event sd_event_source *source sd_event_source_get_event() may be used to retrieve the event loop object the event source object specified as source is associated with. The event loop object is specified when creating an event source object with calls such as sd_event_add_io3 or sd_event_add_time3. On success, sd_event_source_get_event() returns the associated event loop object. On failure, it returns NULL. sd-event3, sd_event_add_io3, sd_event_add_time3, sd_event_add_signal3, sd_event_add_child3, sd_event_add_inotify3, sd_event_add_defer3, sd_event_source_set_userdata3