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jderussefabpot
jderusse
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fabpot
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[lock] Add store dedicated to postgresql
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12 files changed

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‎.github/workflows/tests.yml

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@@ -15,6 +15,12 @@ jobs:
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php: ['7.2', '7.4']
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services:
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postgres:
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image: postgres:9.6-alpine
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ports:
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- 5432:5432
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env:
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POSTGRES_PASSWORD: 'password'
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redis:
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image: redis:6.0.0
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ports:
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MEMCACHED_HOST: localhost
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MONGODB_HOST: localhost
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KAFKA_BROKER: localhost:9092
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POSTGRES_HOST: localhost
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- name: Run HTTP push tests
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if: matrix.php == '7.4'

‎src/Symfony/Component/Lock/CHANGELOG.md

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@@ -9,6 +9,8 @@ CHANGELOG
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* added `NoLock`
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* deprecated `NotSupportedException`, it shouldn't be thrown anymore.
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* deprecated `RetryTillSaveStore`, logic has been moved in `Lock` and is not needed anymore.
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* added `InMemoryStore`
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* added `PostgreSqlStore`
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5.1.0
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-----

‎src/Symfony/Component/Lock/Store/InMemoryStore.php

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Lock\Store;
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use Symfony\Component\Lock\Exception\LockConflictedException;
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use Symfony\Component\Lock\Key;
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use Symfony\Component\Lock\SharedLockStoreInterface;
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/**
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* InMemoryStore is a PersistingStoreInterface implementation using
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* php-array to manage locks.
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*
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* @author Jérémy Derussé <[email protected]>
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*/
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class InMemoryStore implements SharedLockStoreInterface
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{
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private $locks = [];
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private $readLocks = [];
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public function save(Key $key)
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{
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$hashKey = (string) $key;
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$token = $this->getUniqueToken($key);
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if (isset($this->locks[$hashKey])) {
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// already acquired
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if ($this->locks[$hashKey] === $token) {
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return;
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}
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throw new LockConflictedException();
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}
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// check for promotion
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if (isset($this->readLocks[$hashKey][$token]) && 1 === \count($this->readLocks[$hashKey])) {
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unset($this->readLocks[$hashKey]);
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$this->locks[$hashKey] = $token;
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return;
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}
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if (\count($this->readLocks[$hashKey] ?? []) > 0) {
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throw new LockConflictedException();
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}
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$this->locks[$hashKey] = $token;
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}
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public function saveRead(Key $key)
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{
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$hashKey = (string) $key;
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$token = $this->getUniqueToken($key);
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// check if lock is already acquired in read mode
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if (isset($this->readLocks[$hashKey])) {
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$this->readLocks[$hashKey][$token] = true;
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return;
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}
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// check for demotion
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if (isset($this->locks[$hashKey])) {
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if ($this->locks[$hashKey] !== $token) {
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throw new LockConflictedException();
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}
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unset($this->locks[$hashKey]);
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}
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$this->readLocks[$hashKey][$token] = true;
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}
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public function putOffExpiration(Key $key, float $ttl)
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{
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// do nothing, memory locks forever.
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}
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public function delete(Key $key)
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{
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$hashKey = (string) $key;
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$token = $this->getUniqueToken($key);
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unset($this->readLocks[$hashKey][$token]);
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if (($this->locks[$hashKey] ?? null) === $token) {
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unset($this->locks[$hashKey]);
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}
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}
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public function exists(Key $key)
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{
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$hashKey = (string) $key;
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$token = $this->getUniqueToken($key);
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return isset($this->readLocks[$hashKey][$token]) || ($this->locks[$hashKey] ?? null) === $token;
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}
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private function getUniqueToken(Key $key): string
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{
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if (!$key->hasState(__CLASS__)) {
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$token = base64_encode(random_bytes(32));
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$key->setState(__CLASS__, $token);
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}
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return $key->getState(__CLASS__);
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}
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}

‎src/Symfony/Component/Lock/Store/PdoStore.php

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@@ -74,7 +74,6 @@ class PdoStore implements PersistingStoreInterface
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*
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* @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
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* @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
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* @throws InvalidArgumentException When namespace contains invalid characters
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* @throws InvalidArgumentException When the initial ttl is not valid
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*/
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public function __construct($connOrDsn, array $options = [], float $gcProbability = 0.01, int $initialTtl = 300)

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