From 7efe637f5aea25bb5a5edc7e5b0b376e4bfaa671 Mon Sep 17 00:00:00 2001 From: archie Date: Thu, 2 May 2002 19:57:59 +0000 Subject: Make sure calls to pthread_cancel() do not take effect if the target thread is already exiting. PR: bin/37614 Reviewed by: deischen MFC after: 1 week --- lib/libc_r/uthread/uthread_cancel.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/libc_r') diff --git a/lib/libc_r/uthread/uthread_cancel.c b/lib/libc_r/uthread/uthread_cancel.c index cf72d89..b6b070f 100644 --- a/lib/libc_r/uthread/uthread_cancel.c +++ b/lib/libc_r/uthread/uthread_cancel.c @@ -20,7 +20,8 @@ _pthread_cancel(pthread_t pthread) if ((ret = _find_thread(pthread)) != 0) { /* NOTHING */ - } else if (pthread->state == PS_DEAD || pthread->state == PS_DEADLOCK) { + } else if (pthread->state == PS_DEAD || pthread->state == PS_DEADLOCK + || (pthread->flags & PTHREAD_EXITING) != 0) { ret = 0; } else { /* Protect the scheduling queues: */ @@ -194,7 +195,8 @@ _pthread_testcancel(void) struct pthread *curthread = _get_curthread(); if (((curthread->cancelflags & PTHREAD_CANCEL_DISABLE) == 0) && - ((curthread->cancelflags & PTHREAD_CANCELLING) != 0)) { + ((curthread->cancelflags & PTHREAD_CANCELLING) != 0) && + ((curthread->flags & PTHREAD_EXITING) == 0)) { /* * It is possible for this thread to be swapped out * while performing cancellation; do not allow it -- cgit v1.1