synccall: add separate exit_sem to fix thread release logic bug
[musl.git] / src / thread / pthread_detach.c
blobd73a500e79adc823b38dfe05e8218bdad88f4883
1 #include "pthread_impl.h"
2 #include <threads.h>
4 static int __pthread_detach(pthread_t t)
6 /* If the cas fails, detach state is either already-detached
7 * or exiting/exited, and pthread_join will trap or cleanup. */
8 if (a_cas(&t->detach_state, DT_JOINABLE, DT_DETACHED) != DT_JOINABLE) {
9 int cs;
10 __pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
11 __pthread_join(t, 0);
12 __pthread_setcancelstate(cs, 0);
14 return 0;
17 weak_alias(__pthread_detach, pthread_detach);
18 weak_alias(__pthread_detach, thrd_detach);