PHP code example of mvonline / locker

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

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

    

mvonline / locker example snippets

use Mvonline\Locker\Facades\Locker;

// Simple lock with callback
Locker::lock('user-update-123')
    ->type('simple')
    ->ttl(10)
    ->run(fn () => User::find(123)->update($data));

// Blocking lock
Locker::lock('payment-process')
    ->type('safe')
    ->ttl(30)
    ->block(5)
    ->run(fn () => processPayment());

// Simple lock
Locker::simple('key', fn() => { /* work */ });

// Safe lock
Locker::safe('key', fn() => { /* work */ });

// Reentrant lock
Locker::reentrant('key', fn() => { /* work */ });

// Semaphore (5 concurrent)
Locker::semaphore('key', 5, fn() => { /* work */ });

// Read lock
Locker::read('key', fn() => { /* read */ });

// Write lock
Locker::write('key', fn() => { /* write */ });

use Mvonline\Locker\Traits\HasLocks;

class OrderProcessor
{
    use HasLocks;

    public function processOrder()
    {
        $this->lockResource('order-'.$this->id)
             ->type('reentrant')
             ->ttl(30)
             ->run(fn() => {
                 // critical section
             });
    }

    // Or use the simpler helper
    public function updateOrder()
    {
        $this->withLock('order-'.$this->id, fn() => {
            // protected code
        }, type: 'reentrant', ttl: 60);
    }
}

Locker::lock('resource')->type('simple')->ttl(10)->run(fn() => {});

Locker::lock('resource')
    ->type('safe')
    ->owner(auth()->id())
    ->ttl(30)
    ->run(fn() => {});

Locker::lock('resource')
    ->type('redlock')
    ->ttl(60)
    ->run(fn() => {});

Locker::lock('resource')
    ->type('reentrant')
    ->owner(auth()->id())
    ->ttl(30)
    ->run(fn() => {
        // Can acquire same lock again inside
        Locker::lock('resource')
            ->type('reentrant')
            ->owner(auth()->id())
            ->run(fn() => {});
    });

// Multiple readers allowed
Locker::read('config', fn() => readConfig());

// Exclusive writer
Locker::write('config', fn() => updateConfig($data));

Locker::lock('api-calls')
    ->type('semaphore')
    ->permits(10)
    ->acquire(1)
    ->block(2)
    ->run(fn() => callExternalApi());

Locker::lock('resource')
    ->type('fair')
    ->ttl(30)
    ->run(fn() => {});

Locker::lock('resource')
    ->type('fencing')
    ->ttl(30)
    ->run(function($token) {
        // Use $token for ordering operations
    });

Locker::lock('resource')
    ->type('striped')
    ->shardCount(16)
    ->ttl(30)
    ->run(fn() => {});

Locker::lock(['account-1', 'account-2'])
    ->type('multi')
    ->ttl(30)
    ->run(fn() => transferMoney());

Locker::lock('video-processing')
    ->type('watchdog')
    ->ttl(60)
    ->renewEvery(15)
    ->run(fn() => processLargeVideo());

$lock = Locker::lock('resource')
    ->type('leased')
    ->ttl(30)
    ->acquire();

try {
    doWork();
    $lock->renew(); // Extend lease
} finally {
    $lock->release();
}

$lock = Locker::lock('resource')
    ->type('safe')
    ->ttl(30)
    ->acquire();

try {
    // Do work
} finally {
    $lock->release();
}

Locker::lock('resource')
    ->type('safe')
    ->ttl(30)
    ->block(5) // Wait up to 5 seconds
    ->run(fn() => {});

use Mvonline\Locker\Events\LockAcquired;

Event::listen(LockAcquired::class, function ($event) {
    Log::info("Lock acquired: {$event->key} by {$event->owner}");
});

// Check if locked
Locker::isLocked('key');
Locker::isLocked('key', 'simple');

// Force release (use with caution)
Locker::forceRelease('key');

bash
php artisan vendor:publish --tag=locker-config