Method lock

lib_acl_cpp/src/queue/queue_file.cpp:388–397

}

bool queue_file::lock(void)
{
	if (!m_bLockerOpened) {
		return false;
	}
	if (!m_locker.try_lock()) {
		return false;
	}
	return true;
}

bool queue_file::unlock(void)
{