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event: add apis to query the timestamp of the event currently processed

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This commit is contained in:
Lennart Poettering
2013-10-11 04:36:02 +02:00
parent 305f78bff3
commit 46e8c8257f
2 changed files with 26 additions and 4 deletions
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src/libsystemd-bus/sd-event.c
+24 -4
View File
@@ -133,6 +133,7 @@ struct sd_event {
pid_t original_pid;
unsigned iteration;
dual_timestamp timestamp;
int state;
bool quit_requested:1;
@@ -1692,7 +1693,6 @@ static sd_event_source* event_next_pending(sd_event *e) {
int sd_event_run(sd_event *e, uint64_t timeout) {
struct epoll_event ev_queue[EPOLL_QUEUE_MAX];
sd_event_source *p;
dual_timestamp n;
int r, i, m;
assert_return(e, -EINVAL);
@@ -1731,7 +1731,7 @@ int sd_event_run(sd_event *e, uint64_t timeout) {
goto finish;
}
dual_timestamp_get(&n);
dual_timestamp_get(&e->timestamp);
for (i = 0; i < m; i++) {
@@ -1748,11 +1748,11 @@ int sd_event_run(sd_event *e, uint64_t timeout) {
goto finish;
}
r = process_timer(e, n.monotonic, e->monotonic_earliest, e->monotonic_latest);
r = process_timer(e, e->timestamp.monotonic, e->monotonic_earliest, e->monotonic_latest);
if (r < 0)
goto finish;
r = process_timer(e, n.realtime, e->realtime_earliest, e->realtime_latest);
r = process_timer(e, e->timestamp.realtime, e->realtime_earliest, e->realtime_latest);
if (r < 0)
goto finish;
@@ -1821,3 +1821,23 @@ int sd_event_request_quit(sd_event *e) {
e->quit_requested = true;
return 0;
}
int sd_event_get_now_realtime(sd_event *e, uint64_t *usec) {
assert_return(e, -EINVAL);
assert_return(usec, -EINVAL);
assert_return(dual_timestamp_is_set(&e->timestamp), -ENODATA);
assert_return(!event_pid_changed(e), -ECHILD);
*usec = e->timestamp.realtime;
return 0;
}
int sd_event_get_now_monotonic(sd_event *e, uint64_t *usec) {
assert_return(e, -EINVAL);
assert_return(usec, -EINVAL);
assert_return(dual_timestamp_is_set(&e->timestamp), -ENODATA);
assert_return(!event_pid_changed(e), -ECHILD);
*usec = e->timestamp.monotonic;
return 0;
}
src/systemd/sd-event.h
+2
View File
@@ -79,6 +79,8 @@ int sd_event_loop(sd_event *e);
int sd_event_get_state(sd_event *e);
int sd_event_get_quit(sd_event *e);
int sd_event_request_quit(sd_event *e);
int sd_event_get_now_realtime(sd_event *e, uint64_t *usec);
int sd_event_get_now_monotonic(sd_event *e, uint64_t *usec);
sd_event *sd_event_get(sd_event_source *s);