mem_usage_unlock  300 ext/opcache/ZendAccelerator.c 	static const FLOCK_STRUCTURE(mem_usage_unlock, F_UNLCK, SEEK_SET, 1, 1);
mem_usage_unlock  302 ext/opcache/ZendAccelerator.c 	if (fcntl(lock_file, F_SETLK, &mem_usage_unlock) == -1) {