diff options
Diffstat (limited to 'src/atimer.c')
| -rw-r--r-- | src/atimer.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/src/atimer.c b/src/atimer.c index 9b198675ab4..ab47bbf9688 100644 --- a/src/atimer.c +++ b/src/atimer.c @@ -583,15 +583,17 @@ init_atimer (void) timerfd = (egetenv ("EMACS_IGNORE_TIMERFD") || have_buggy_timerfd () ? -1 : timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC)); # endif - if (timerfd < 0) - { - struct sigevent sigev; - sigev.sigev_notify = SIGEV_SIGNAL; - sigev.sigev_signo = SIGALRM; - sigev.sigev_value.sival_ptr = &alarm_timer; - alarm_timer_ok - = timer_create (CLOCK_REALTIME, &sigev, &alarm_timer) == 0; - } + /* We're starting the alarms even if we have timerfd, because + timerfd events do not fire while Emacs Lisp is busy and doesn't + call thread_select. This might or might not mean that the + timerfd code doesn't really give us anything and should be + removed, see discussion in bug#19776. */ + struct sigevent sigev; + sigev.sigev_notify = SIGEV_SIGNAL; + sigev.sigev_signo = SIGALRM; + sigev.sigev_value.sival_ptr = &alarm_timer; + alarm_timer_ok + = timer_create (CLOCK_REALTIME, &sigev, &alarm_timer) == 0; #endif free_atimers = stopped_atimers = atimers = NULL; |