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correctly handle the degenerate barrier in the pshared case
[musl]
/
src
/
thread
/
pthread_barrier_wait.c
diff --git
a/src/thread/pthread_barrier_wait.c
b/src/thread/pthread_barrier_wait.c
index
83c32ca
..
a97f6d5
100644
(file)
--- a/
src/thread/pthread_barrier_wait.c
+++ b/
src/thread/pthread_barrier_wait.c
@@
-24,7
+24,7
@@
static int pshared_barrier_wait(pthread_barrier_t *b)
int seq;
int ret = 0;
int seq;
int ret = 0;
- if (
!limit
) return PTHREAD_BARRIER_SERIAL_THREAD;
+ if (
limit==1
) return PTHREAD_BARRIER_SERIAL_THREAD;
while (a_swap(&b->_b_lock, 1))
__wait(&b->_b_lock, &b->_b_waiters, 1, 0);
while (a_swap(&b->_b_lock, 1))
__wait(&b->_b_lock, &b->_b_waiters, 1, 0);