Author: davidxu
Date: Wed Sep 8 02:18:20 2010
New Revision: 212312
URL: http://svn.freebsd.org/changeset/base/212312
Log:
To avoid possible race condition, SIGCANCEL is always sent except the
thread is dead.
Modified:
head/lib/libthr/thread/thr_cancel.c
Modified: head/lib/libthr/thread/thr_cancel.c
==============================================================================
--- head/lib/libthr/thread/thr_cancel.c Wed Sep 8 01:55:03 2010
(r212311)
+++ head/lib/libthr/thread/thr_cancel.c Wed Sep 8 02:18:20 2010
(r212312)
@@ -67,7 +67,7 @@ _pthread_cancel(pthread_t pthread)
THR_THREAD_LOCK(curthread, pthread);
if (!pthread->cancel_pending) {
pthread->cancel_pending = 1;
- if (pthread->cancel_enable)
+ if (pthread->state != PS_DEAD)
_thr_send_sig(pthread, SIGCANCEL);
}
THR_THREAD_UNLOCK(curthread, pthread);
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