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pecl install openswoole-22.1.2 | composer require openswoole/core:22.1.5
<?php OpenSwoole\Lock->lock()
Try to acquire the lock. The process is blocking when the lock is not available.
<?php
$lock = new OpenSwoole\Lock(OpenSwoole\Lock::MUTEX);
echo "[Master] Create lock\n";
$lock->lock();
if (pcntl_fork() > 0)
{
sleep(1);
$lock->unlock();
}
else
{
echo "[Child] Wait Lock\n";
$lock->lock();
echo "[Child] Get Lock\n";
$lock->unlock();
exit("[Child] exit\n");
}
echo "[Master]release lock\n";
unset($lock);
sleep(1);
echo "[Master]exit\n";