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fix ABA race in cond vars, improve them overall
[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
..
dec9116
100644
(file)
--- a/
src/thread/pthread_cond_broadcast.c
+++ b/
src/thread/pthread_cond_broadcast.c
@@
-2,7
+2,7
@@
int pthread_cond_broadcast(pthread_cond_t *c)
{
- if (a_swap(&c->_c_block, 0))
-
__wake(&c->_c_block, -1, 0);
+ a_store(&c->_c_block, 0);
+
if (c->_c_waiters)
__wake(&c->_c_block, -1, 0);
return 0;
}