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main_notify: just use cond_signal to wakeup, no need to trylock

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pthread_cond_signal is a no-op if nothing is waiting on it

git-svn-id: https://svn.musicpd.org/mpd/trunk@7351 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Eric Wong 2008-04-13 01:15:43 +00:00
parent 78370a9759
commit ae1335753a
1 changed files with 1 additions and 11 deletions
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12
src/main_notify.c
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@ -90,22 +90,12 @@ static int wakeup_via_pipe(void)
} }
} }
static void wakeup_via_cond(void)
{
int ret = pthread_mutex_trylock(&main_wakeup_mutex);
if (ret == EBUSY)
return; /* nope, no need to wakeup at all */
pthread_cond_signal(&main_wakeup);
pthread_mutex_unlock(&main_wakeup_mutex);
}
void wakeup_main_task(void) void wakeup_main_task(void)
{ {
assert(!pthread_equal(main_task, pthread_self())); assert(!pthread_equal(main_task, pthread_self()));
if (!wakeup_via_pipe()) if (!wakeup_via_pipe())
wakeup_via_cond(); pthread_cond_signal(&main_wakeup);
} }
void main_notify_lock(void) void main_notify_lock(void)