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Simple eLock client on PHP
Simple eLock client on PHP. Also supports features of NodeJS eLock server., (*1)
eLock is a simple distributed lock server on erlang., (*2)
Advantages: - fault-tolerant - simple to install and to use - safe from race conditions - all operations are atomic - all locks required by a client are being unlocked automatically when the client disconnects, (*3)
See source repository., (*4)
NodeJS eLock server is an implementation of original eLock protocol on NodeJS with an addition of deadlock detection., (*5)
Advantages: - all advantages of original eLock protocol - when lock attempt causes a recursive lock circle, a deadlock is automatically reported with 423 response code - supports value locks - has "debug" command, (*6)
See source repository., (*7)
It would be listening on port 11400., (*8)
The client is available as a composer dependency:, (*9)
composer install yusitnikov/php-elock-client
$key1 = 'unique-resource-key1';
$key1 = 'unique-resource-key2';
$lockTimeout = 5;
// Create a client of an original eLock server
$client = new ELockClient('your.elock.server.host.or.ip');
// or create a client of a NodeJS eLock server
$client = new ELockClientEx('your.elock.server.host.or.ip');
// Tell to release all locks after the disconnection
$client->setTimeout(0);
// Lock keys
$lockedKey1 = $client->lock($key1, $lockTimeout);
$lockedKey2 = $client->lock($key2, $lockTimeout);
// Unlock key
$unlockedKey1 = $client->unlock($key1);
// Unlock all keys you own
$client->unlockAll();
// Disconnect from the server
$client->quit();
$client->close();
// Lock the resource with a timeout that's big enough to wait for other clients to finish their job
if (!$client->lock($key, $timeout)) {
throw new Exception('Failed to lock the resource XXX during YYY seconds');
}
try {
// Do something with the locked resource
} finally {
// Ensure that the resource will be unlocked in the case of unexpected error
$client->unlock($key);
}
Simple eLock client on PHP
MIT
Simple eLock client on PHP
MIT
Simple eLock client on PHP
MIT
Simple eLock client on PHP
MIT
Simple eLock client on PHP