692bbaf9cb643d111c69dc52ac8f5acda2eb89d5
[oweals/musl.git] / src / thread / pthread_detach.c
1 #include "pthread_impl.h"
2 #include <threads.h>
3
4 int __pthread_join(pthread_t, void **);
5
6 static int __pthread_detach(pthread_t t)
7 {
8         /* Cannot detach a thread that's already exiting */
9         if (a_cas(t->exitlock, 0, INT_MIN + 1))
10                 return __pthread_join(t, 0);
11         t->detached = 2;
12         UNLOCK(t->exitlock);
13         return 0;
14 }
15
16 weak_alias(__pthread_detach, pthread_detach);
17 weak_alias(__pthread_detach, thrd_detach);