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authorPhilip Guenthe <guenther@cvs.openbsd.org>2008-08-14 05:20:45 +0000
committerPhilip Guenthe <guenther@cvs.openbsd.org>2008-08-14 05:20:45 +0000
commitee44450406aeeb5199575aa1bdaf88c249a2e52b (patch)
treec9c37a5b59907e385fe3129986ae9cb3301d6dd1 /lib/librthread
parent5decd3a7dcf38a38c8b61222d7120e690ba4105c (diff)
Fix 5771/library: in pthread_exit(), delay the call to _sem_post() that
unblocks the pthread_join() for this thread until the exiting thread is completely done with its thread structure, as the joining thread will free it once unblocked. Also, don't bother to call _sem_post() if the thread is detached. ok kurt@
Diffstat (limited to 'lib/librthread')
-rw-r--r--lib/librthread/rthread.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/librthread/rthread.c b/lib/librthread/rthread.c
index 97b05fc847a..decb31e1c5b 100644
--- a/lib/librthread/rthread.c
+++ b/lib/librthread/rthread.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rthread.c,v 1.36 2008/08/14 05:15:41 guenther Exp $ */
+/* $OpenBSD: rthread.c,v 1.37 2008/08/14 05:20:44 guenther Exp $ */
/*
* Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
* All Rights Reserved.
@@ -209,14 +209,14 @@ pthread_exit(void *retval)
LIST_REMOVE(thread, threads);
_spinunlock(&_thread_lock);
- _sem_post(&thread->donesem);
-
stack = thread->stack;
tid = thread->tid;
if (thread->flags & THREAD_DETACHED)
_rthread_free(thread);
- else
+ else {
_rthread_setflag(thread, THREAD_DONE);
+ _sem_post(&thread->donesem);
+ }
if (tid != _initial_thread.tid)
_rthread_add_to_reaper(tid, stack);