internal locks: new owner of contended lock must set waiters flag

[musl] / src / thread / cancellation.c

diff --git a/src/thread/cancellation.c b/src/thread/cancellation.c
index 967705a..ab7eebc 100644 (file)
--- a/src/thread/cancellation.c
+++ b/src/thread/cancellation.c
@@ -5,12 +5,15 @@ void __do_cleanup_pop();
 
 void _pthread_cleanup_push(struct __ptcb *cb, void (*f)(void *), void *x)
 {
+       cb->__f = f;
+       cb->__x = x;
        __do_cleanup_push(cb, f, x);
 }
 
 void _pthread_cleanup_pop(struct __ptcb *cb, int run)
 {
        __do_cleanup_pop(cb, run);
+       if (run) cb->__f(cb->__x);
 }
 
 static void dummy()