diff options
| author | Lennart Poettering <lennart@poettering.net> | 2013-10-11 01:33:25 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2013-10-11 01:33:25 +0200 |
| commit | 4bee801296daef257c64647353a1815d46fe2a34 (patch) | |
| tree | 87d21c74816c467cdded641c4cf994c54ed23f91 | |
| parent | baf762833224267ef5380fb83b22f294628695a8 (diff) | |
event: add sd_event_source_get_child_pid() call to query the PID of a child event source
| -rw-r--r-- | src/libsystemd-bus/sd-event.c | 10 | ||||
| -rw-r--r-- | src/systemd/sd-event.h | 3 |
2 files changed, 11 insertions, 2 deletions
diff --git a/src/libsystemd-bus/sd-event.c b/src/libsystemd-bus/sd-event.c index 3094d9e297..482e3bb8a5 100644 --- a/src/libsystemd-bus/sd-event.c +++ b/src/libsystemd-bus/sd-event.c @@ -1297,6 +1297,16 @@ int sd_event_source_get_time_accuracy(sd_event_source *s, uint64_t *usec) { return 0; } +int sd_event_source_get_child_pid(sd_event_source *s, pid_t *pid) { + assert_return(s, -EINVAL); + assert_return(pid, -EINVAL); + assert_return(s->type == SOURCE_CHILD, -EDOM); + assert_return(!event_pid_changed(s->event), -ECHILD); + + *pid = s->child.pid; + return 0; +} + int sd_event_source_set_prepare(sd_event_source *s, sd_prepare_handler_t callback) { int r; diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h index 1fd5648636..6ff85addb1 100644 --- a/src/systemd/sd-event.h +++ b/src/systemd/sd-event.h @@ -35,8 +35,6 @@ - Scales better with a large number of time events, since it doesn't require one timerfd each - Automatically tries to coalesce timer events system-wide - Handles signals and child PIDs - - TODO: rename mute to enable? */ typedef struct sd_event sd_event; @@ -101,6 +99,7 @@ int sd_event_source_get_time(sd_event_source *s, uint64_t *usec); int sd_event_source_set_time(sd_event_source *s, uint64_t usec); int sd_event_source_set_time_accuracy(sd_event_source *s, uint64_t usec); int sd_event_source_get_time_accuracy(sd_event_source *s, uint64_t *usec); +int sd_event_source_get_child_pid(sd_event_source *s, pid_t *pid); int sd_event_source_set_prepare(sd_event_source *s, sd_prepare_handler_t callback); void* sd_event_source_get_userdata(sd_event_source *s); |