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Diffstat (limited to 'src/thread/pthread_cond_signal.c')
-rw-r--r--src/thread/pthread_cond_signal.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/thread/pthread_cond_signal.c b/src/thread/pthread_cond_signal.c
index b26b8ce5..71bcdcd9 100644
--- a/src/thread/pthread_cond_signal.c
+++ b/src/thread/pthread_cond_signal.c
@@ -2,7 +2,8 @@
int pthread_cond_signal(pthread_cond_t *c)
{
- a_store(&c->_c_block, 0);
- if (c->_c_waiters) __wake(&c->_c_block, 1, 0);
+ if (!c->_c_waiters) return 0;
+ a_inc(&c->_c_seq);
+ if (c->_c_waiters) __wake(&c->_c_seq, 1, 0);
return 0;
}