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authordeischen <deischen@FreeBSD.org>2001-11-17 14:28:39 +0000
committerdeischen <deischen@FreeBSD.org>2001-11-17 14:28:39 +0000
commitb43c906fd478d13c3c092a2c7ba3198b5557eac6 (patch)
treed9b490926b6ae401659e2052a1b89c5bea09c6d4 /lib/libpthread/thread/thr_sig.c
parent82943ba6834c1d4951740dd6dd59a8ff1373b2f8 (diff)
downloadFreeBSD-src-b43c906fd478d13c3c092a2c7ba3198b5557eac6.zip
FreeBSD-src-b43c906fd478d13c3c092a2c7ba3198b5557eac6.tar.gz
Fix pthread_join so that it works if the target thread exits while
the joining thread is in a signal handler. Reported by: Loren James Rittle <rittle@labs.mot.com> MFC after: 1 week
Diffstat (limited to 'lib/libpthread/thread/thr_sig.c')
-rw-r--r--lib/libpthread/thread/thr_sig.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libpthread/thread/thr_sig.c b/lib/libpthread/thread/thr_sig.c
index 9ca197e..a05f914 100644
--- a/lib/libpthread/thread/thr_sig.c
+++ b/lib/libpthread/thread/thr_sig.c
@@ -671,7 +671,6 @@ thread_sig_add(pthread_t pthread, int sig, int has_args)
* signal handler to run:
*/
case PS_COND_WAIT:
- case PS_JOIN:
case PS_MUTEX_WAIT:
/*
* Remove the thread from the wait queue. It will
@@ -681,6 +680,17 @@ thread_sig_add(pthread_t pthread, int sig, int has_args)
PTHREAD_WAITQ_REMOVE(pthread);
break;
+ case PS_JOIN:
+ /*
+ * Remove the thread from the wait queue. It will
+ * be added back to the wait queue once all signal
+ * handlers have been invoked.
+ */
+ PTHREAD_WAITQ_REMOVE(pthread);
+ /* Make the thread runnable: */
+ PTHREAD_SET_STATE(pthread, PS_RUNNING);
+ break;
+
/*
* States which are interruptible but may need to be removed
* from queues before any signal handler is called.
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