Swoole\Lock::__construct

(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)

Swoole\Lock::__construct — Construct a memory lock.

public Swoole\Lock::__construct ([ string $type [, string $file_lock_location ]] )

Swoole lock is used for data synchronization between multiple theads or processes.