From eb4bd8d8bb5c9f535ee8250edd4efbd3d4f84c5a Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 2 Mar 2015 18:52:31 -0500 Subject: [PATCH] suppress masked cancellation in pthread_join like close, pthread_join is a resource-deallocation function which is also a cancellation point. the intent of masked cancellation mode is to exempt such functions from failure with ECANCELED. --- src/thread/pthread_join.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/thread/pthread_join.c b/src/thread/pthread_join.c index bf4f03ce..966b4ab0 100644 --- a/src/thread/pthread_join.c +++ b/src/thread/pthread_join.c @@ -3,12 +3,16 @@ int __munmap(void *, size_t); void __pthread_testcancel(void); +int __pthread_setcancelstate(int, int *); int __pthread_join(pthread_t t, void **res) { - int tmp; + int tmp, cs; __pthread_testcancel(); + __pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs); + if (cs == PTHREAD_CANCEL_ENABLE) __pthread_setcancelstate(cs, 0); while ((tmp = t->tid)) __timedwait_cp(&t->tid, tmp, 0, 0, 0); + __pthread_setcancelstate(cs, 0); if (res) *res = t->result; if (t->map_base) __munmap(t->map_base, t->map_size); return 0; -- 2.25.1