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fix deadlock in condition wait whenever there are multiple waiters
[musl]
/
src
/
thread
/
pthread_cond_broadcast.c
diff --git
a/src/thread/pthread_cond_broadcast.c
b/src/thread/pthread_cond_broadcast.c
index
30f7f6d
..
6002c53
100644
(file)
--- a/
src/thread/pthread_cond_broadcast.c
+++ b/
src/thread/pthread_cond_broadcast.c
@@
-2,7
+2,8
@@
int pthread_cond_broadcast(pthread_cond_t *c)
{
- if (a_swap(&c->_c_block, 0))
+ int w = c->_c_waiters;
+ if (a_swap(&c->_c_block, 0) || w)
__wake(&c->_c_block, -1, 0);
return 0;
}