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Allow base-notification functions to exist without setting an fd

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The kqueue and evport backends can make good use of this.
This commit is contained in:
Nick Mathewson 2011-05-27 22:54:16 -04:00
parent 356720a23b
commit 94b8e676f3
1 changed files with 4 additions and 1 deletions
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5
event.c
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@ -825,6 +825,7 @@ event_reinit(struct event_base *base)
base->th_notify_fd[0] = -1; base->th_notify_fd[0] = -1;
base->th_notify_fd[1] = -1; base->th_notify_fd[1] = -1;
event_debug_unassign(&base->th_notify); event_debug_unassign(&base->th_notify);
base->th_notify_fn = NULL;
} }
if (base->evsel->dealloc != NULL) if (base->evsel->dealloc != NULL)
@ -2696,8 +2697,10 @@ evthread_make_base_notifiable(struct event_base *base)
if (!base) if (!base)
return -1; return -1;
if (base->th_notify_fd[0] >= 0) if (base->th_notify_fn != NULL) {
/* The base is already notifiable: we're doing fine. */
return 0; return 0;
}
#if defined(_EVENT_HAVE_EVENTFD) && defined(_EVENT_HAVE_SYS_EVENTFD_H) #if defined(_EVENT_HAVE_EVENTFD) && defined(_EVENT_HAVE_SYS_EVENTFD_H)
#ifndef EFD_CLOEXEC #ifndef EFD_CLOEXEC