From 44f698ae2a749d552fab07dd450d4085f8f83531 Mon Sep 17 00:00:00 2001 From: root Date: Wed, 2 Apr 2008 06:34:50 +0000 Subject: *** empty log message *** --- ev.pod | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'ev.pod') diff --git a/ev.pod b/ev.pod index 81dd6a9..aa8a647 100644 --- a/ev.pod +++ b/ev.pod @@ -2290,6 +2290,20 @@ This call incurs the overhead of a syscall only once per loop iteration, so while the overhead might be noticable, it doesn't apply to repeated calls to C. +=item bool = ev_async_pending (ev_async *) + +Returns a non-zero value when C has been called on the +watcher but the event has not yet been processed (or even noted) by the +event loop. + +C sets a flag in the watcher and wakes up the loop. When +the loop iterates next and checks for the watcher to have become active, +it will reset the flag again. C can be used to very +quickly check wether invoking the loop might be a good idea. + +Not that this does I check wether the watcher itself is pending, only +wether it has been requested to make this watcher pending. + =back -- cgit v1.2.3