1 #include "usr_lib_define.h" 2 #include "pthread_impl.h" 3 #include <threads.h> 4 __pthread_detach(pthread_t t)5_LIBC_TEXT_SECTION static int __pthread_detach(pthread_t t) 6 { 7 int ret; 8 9 /* If the cas fails, detach state is either already-detached 10 * or exiting/exited, and pthread_join will trap or cleanup. */ 11 if (a_cas(&t->detach_state, DT_JOINABLE, DT_DETACHED) != DT_JOINABLE) 12 return __pthread_join(t, 0); 13 ret = __syscall(SYS_pthread_set_detach, t->tid); 14 if (ret) a_swap(&t->detach_state, DT_JOINABLE); 15 if (ret == ESRCH) ret = 0; 16 return ret; 17 } 18 19 weak_alias(__pthread_detach, pthread_detach); 20