restart_check     513 ext/opcache/ZendAccelerator.c 		FLOCK_STRUCTURE(restart_check, F_WRLCK, SEEK_SET, 2, 1);
restart_check     515 ext/opcache/ZendAccelerator.c 		if (fcntl(lock_file, F_GETLK, &restart_check) == -1) {
restart_check     519 ext/opcache/ZendAccelerator.c 		if (restart_check.l_type == F_UNLCK) {