synchronize cond var destruction with exiting waits

[musl] / src / thread / pthread_cond_destroy.c

diff --git a/src/thread/pthread_cond_destroy.c b/src/thread/pthread_cond_destroy.c
index 1d21a5a..a096c55 100644 (file)
--- a/src/thread/pthread_cond_destroy.c
+++ b/src/thread/pthread_cond_destroy.c
@@ -2,5 +2,12 @@
 
 int pthread_cond_destroy(pthread_cond_t *c)
 {
+       int priv = c->_c_mutex != (void *)-1;
+       int cnt;
+       c->_c_destroy = 1;
+       if (c->_c_waiters)
+               __wake(&c->_c_seq, -1, priv);
+       while ((cnt = c->_c_waiters))
+               __wait(&c->_c_waiters, 0, cnt, priv);
        return 0;
 }