PHP code example of rtckit / react-redlock

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

rtckit / react-redlock example snippets

/* Instantiate prerequisites */
$factory = new \Clue\React\Redis\Factory();
$client = $factory->createLazyClient('127.0.0.1');

/* Instantiate our lock custodian */
$custodian = new \RTCKit\React\Redlock\Custodian($client);

/**
 * @param string $resource Redis key name
 * @param float $ttl Lock's time to live (in seconds)
 * @param ?string $token Unique identifier for lock in question
 * @return PromiseInterface
 */
$custodian->acquire('MyResource', 60, 'r4nd0m_token')
    ->then(function (?Lock $lock) {
        if (is_null($lock)) {
            // Ooops, lock could not be acquired for MyResource
        } else {
            // Awesome, MyResource is locked for a minute
            // ...

            // Be nice and release the lock when done
            $custodian->release($lock);
        }
    });

/**
 * @param int $attempts Maximum spin/tries
 * @param float $interval Spin/try interval (in seconds)
 * @param string $resource Redis key name
 * @param float $ttl Lock's time to live (in seconds)
 * @param ?string $token Unique identifier for lock in question
 * @return PromiseInterface
 */
$custodian->spin(100, 0.5, 'HotResource', 10, 'r4nd0m_token')
    ->then(function (?Lock $lock): void {
        if (is_null($lock)) {
            // Wow, after 100 tries (with a gap of 0.5 seconds) I've
            // given up acquiring a lock on HotResource
        } else {
            // Awesome, HotResource is locked for 10 seconds
            // ...

            // Again, be nice and release the lock when done
            $custodian->release($lock);
        }
    })

bash
php -d memory_limit=-1 ./vendor/bin/phpunit -c ./etc/phpunit.xml.dist

sh
php -d memory_limit=-1 ./vendor/bin/phpstan analyse -c ./etc/phpstan.neon -n -vvv --ansi --level=max src
php -d memory_limit=-1 ./vendor/bin/psalm --config=./etc/psalm.xml --show-info=true