xref: /aosp_15_r20/external/musl/src/thread/pthread_detach.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include "pthread_impl.h"
2*c9945492SAndroid Build Coastguard Worker #include <threads.h>
3*c9945492SAndroid Build Coastguard Worker 
__pthread_detach(pthread_t t)4*c9945492SAndroid Build Coastguard Worker static int __pthread_detach(pthread_t t)
5*c9945492SAndroid Build Coastguard Worker {
6*c9945492SAndroid Build Coastguard Worker 	/* If the cas fails, detach state is either already-detached
7*c9945492SAndroid Build Coastguard Worker 	 * or exiting/exited, and pthread_join will trap or cleanup. */
8*c9945492SAndroid Build Coastguard Worker 	if (a_cas(&t->detach_state, DT_JOINABLE, DT_DETACHED) != DT_JOINABLE) {
9*c9945492SAndroid Build Coastguard Worker 		int cs;
10*c9945492SAndroid Build Coastguard Worker 		__pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
11*c9945492SAndroid Build Coastguard Worker 		__pthread_join(t, 0);
12*c9945492SAndroid Build Coastguard Worker 		__pthread_setcancelstate(cs, 0);
13*c9945492SAndroid Build Coastguard Worker 	}
14*c9945492SAndroid Build Coastguard Worker 	return 0;
15*c9945492SAndroid Build Coastguard Worker }
16*c9945492SAndroid Build Coastguard Worker 
17*c9945492SAndroid Build Coastguard Worker weak_alias(__pthread_detach, pthread_detach);
18*c9945492SAndroid Build Coastguard Worker weak_alias(__pthread_detach, thrd_detach);
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