98 static inline unsigned int SEM_GET_SHARED(atomic_uint* sem_count_ptr) {  in SEM_GET_SHARED()  argument
100   return (atomic_load_explicit(sem_count_ptr, memory_order_relaxed) & SEMCOUNT_SHARED_MASK);  in SEM_GET_SHARED()
115   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in sem_init()  local
116   atomic_init(sem_count_ptr, count);  in sem_init()
143 static int __sem_dec(atomic_uint* sem_count_ptr) {  in __sem_dec()  argument
144   unsigned int old_value = atomic_load_explicit(sem_count_ptr, memory_order_relaxed);  in __sem_dec()
155   } while (!atomic_compare_exchange_weak(sem_count_ptr, &old_value,  in __sem_dec()
163 static int __sem_trydec(atomic_uint* sem_count_ptr) {  in __sem_trydec()  argument
164   unsigned int old_value = atomic_load_explicit(sem_count_ptr, memory_order_relaxed);  in __sem_trydec()
175   } while (!atomic_compare_exchange_weak(sem_count_ptr, &old_value,  in __sem_trydec()
187 static int __sem_inc(atomic_uint* sem_count_ptr) {  in __sem_inc()  argument
188   unsigned int old_value = atomic_load_explicit(sem_count_ptr, memory_order_relaxed);  in __sem_inc()
208   } while (!atomic_compare_exchange_weak(sem_count_ptr, &old_value,  in __sem_inc()
215   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in sem_wait()  local
216   unsigned int shared = SEM_GET_SHARED(sem_count_ptr);  in sem_wait()
219     if (__sem_dec(sem_count_ptr) > 0) {  in sem_wait()
223 …  int result = __futex_wait_ex(sem_count_ptr, shared, shared | SEMCOUNT_MINUS_ONE, false, nullptr);  in sem_wait()
234   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in __sem_timedwait()  local
239   if (__sem_trydec(sem_count_ptr) > 0) {  in __sem_timedwait()
250   unsigned int shared = SEM_GET_SHARED(sem_count_ptr);  in __sem_timedwait()
254     if (__sem_dec(sem_count_ptr) > 0) {  in __sem_timedwait()
259     int result = __futex_wait_ex(sem_count_ptr, shared, shared | SEMCOUNT_MINUS_ONE,  in __sem_timedwait()
290   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in sem_post()  local
291   unsigned int shared = SEM_GET_SHARED(sem_count_ptr);  in sem_post()
293   int old_value = __sem_inc(sem_count_ptr);  in sem_post()
296     __futex_wake_ex(sem_count_ptr, shared, INT_MAX);  in sem_post()
307   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in sem_trywait()  local
308   if (__sem_trydec(sem_count_ptr) > 0) {  in sem_trywait()
317   atomic_uint* sem_count_ptr = SEM_TO_ATOMIC_POINTER(sem);  in sem_getvalue()  local
322   int val = SEMCOUNT_TO_VALUE(atomic_load(sem_count_ptr));  in sem_getvalue()