C++ (Cpp) __down_write_trylock Exemples

Exemple #1

/*
 * trylock for writing -- returns 1 if successful, 0 if contention
 */
int down_write_trylock(struct rw_semaphore *sem)
{
	int ret = __down_write_trylock(sem);

	if (ret == 1)
		rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_);
	return ret;
}

Exemple #2

int down_write_trylock_nested(struct rw_semaphore *sem, int subclass)
{
	int ret = __down_write_trylock(sem);

	if (ret == 1)
		rwsem_acquire(&sem->dep_map, subclass, 1, _RET_IP_);
	return ret;
}