[lock] Add store dedicated to postgresql
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7
.github/workflows/tests.yml
vendored
7
.github/workflows/tests.yml
vendored
@ -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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@ -144,6 +150,7 @@ jobs:
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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'
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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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-----
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114
src/Symfony/Component/Lock/Store/InMemoryStore.php
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114
src/Symfony/Component/Lock/Store/InMemoryStore.php
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@ -0,0 +1,114 @@
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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 <fabien@symfony.com>
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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 <jeremy@derusse.com>
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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 $key->getState(__CLASS__);
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}
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}
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@ -74,7 +74,6 @@ class PdoStore implements PersistingStoreInterface
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*
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* @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
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* @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
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* @throws InvalidArgumentException When namespace contains invalid characters
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* @throws InvalidArgumentException When the initial ttl is not valid
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*/
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public function __construct($connOrDsn, array $options = [], float $gcProbability = 0.01, int $initialTtl = 300)
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283
src/Symfony/Component/Lock/Store/PostgreSqlStore.php
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283
src/Symfony/Component/Lock/Store/PostgreSqlStore.php
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@ -0,0 +1,283 @@
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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 <fabien@symfony.com>
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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 Doctrine\DBAL\Connection;
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use Doctrine\DBAL\DriverManager;
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use Symfony\Component\Lock\BlockingSharedLockStoreInterface;
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use Symfony\Component\Lock\BlockingStoreInterface;
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use Symfony\Component\Lock\Exception\InvalidArgumentException;
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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\PersistingStoreInterface;
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/**
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* PostgreSqlStore is a PersistingStoreInterface implementation using
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* PostgreSql advisory locks.
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*
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* @author Jérémy Derussé <jeremy@derusse.com>
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*/
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class PostgreSqlStore implements BlockingSharedLockStoreInterface, BlockingStoreInterface
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{
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private $conn;
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private $dsn;
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private $username = '';
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private $password = '';
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private $connectionOptions = [];
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private static $storeRegistry = [];
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/**
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* You can either pass an existing database connection as PDO instance or
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* a Doctrine DBAL Connection or a DSN string that will be used to
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* lazy-connect to the database when the lock is actually used.
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*
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* List of available options:
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* * db_username: The username when lazy-connect [default: '']
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* * db_password: The password when lazy-connect [default: '']
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* * db_connection_options: An array of driver-specific connection options [default: []]
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*
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* @param \PDO|Connection|string $connOrDsn A \PDO or Connection instance or DSN string or null
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* @param array $options An associative array of options
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*
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* @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
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* @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
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* @throws InvalidArgumentException When namespace contains invalid characters
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*/
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public function __construct($connOrDsn, array $options = [])
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{
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if ($connOrDsn instanceof \PDO) {
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if (\PDO::ERRMODE_EXCEPTION !== $connOrDsn->getAttribute(\PDO::ATTR_ERRMODE)) {
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throw new InvalidArgumentException(sprintf('"%s" requires PDO error mode attribute be set to throw Exceptions (i.e. $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION)).', __METHOD__));
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}
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$this->conn = $connOrDsn;
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$this->checkDriver();
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} elseif ($connOrDsn instanceof Connection) {
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$this->conn = $connOrDsn;
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$this->checkDriver();
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} elseif (\is_string($connOrDsn)) {
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$this->dsn = $connOrDsn;
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} else {
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throw new InvalidArgumentException(sprintf('"%s" requires PDO or Doctrine\DBAL\Connection instance or DSN string as first argument, "%s" given.', __CLASS__, get_debug_type($connOrDsn)));
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}
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$this->username = $options['db_username'] ?? $this->username;
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$this->password = $options['db_password'] ?? $this->password;
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$this->connectionOptions = $options['db_connection_options'] ?? $this->connectionOptions;
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}
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public function save(Key $key)
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{
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// prevent concurrency within the same connection
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$this->getInternalStore()->save($key);
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$sql = 'SELECT pg_try_advisory_lock(:key)';
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$result = $stmt->execute();
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// Check if lock is acquired
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if (true === (\is_object($result) ? $result->fetchOne() : $stmt->fetchColumn())) {
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// release sharedLock in case of promotion
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$this->unlockShared($key);
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return;
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}
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throw new LockConflictedException();
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}
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public function saveRead(Key $key)
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{
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// prevent concurrency within the same connection
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$this->getInternalStore()->saveRead($key);
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$sql = 'SELECT pg_try_advisory_lock_shared(:key)';
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$result = $stmt->execute();
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// Check if lock is acquired
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if (true === (\is_object($result) ? $result->fetchOne() : $stmt->fetchColumn())) {
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// release lock in case of demotion
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$this->unlock($key);
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return;
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}
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throw new LockConflictedException();
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}
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public function putOffExpiration(Key $key, float $ttl)
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{
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// postgresql locks forever.
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// check if lock still exists
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if (!$this->exists($key)) {
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throw new LockConflictedException();
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}
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}
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public function delete(Key $key)
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{
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// Prevent deleting locks own by an other key in the same connection
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if (!$this->exists($key)) {
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return;
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}
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$this->unlock($key);
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// Prevent deleting Readlocks own by current key AND an other key in the same connection
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$store = $this->getInternalStore();
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try {
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// If lock acquired = there is no other ReadLock
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$store->save($key);
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$this->unlockShared($key);
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} catch (LockConflictedException $e) {
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// an other key exists in this ReadLock
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}
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$store->delete($key);
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}
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public function exists(Key $key)
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{
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$sql = "SELECT count(*) FROM pg_locks WHERE locktype='advisory' AND objid=:key AND pid=pg_backend_pid()";
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$result = $stmt->execute();
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if ((\is_object($result) ? $result->fetchOne() : $stmt->fetchColumn()) > 0) {
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// connection is locked, check for lock in internal store
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return $this->getInternalStore()->exists($key);
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}
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return false;
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}
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public function waitAndSave(Key $key)
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{
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// prevent concurrency within the same connection
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// Internal store does not allow blocking mode, because there is no way to acquire one in a single process
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$this->getInternalStore()->save($key);
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$sql = 'SELECT pg_advisory_lock(:key)';
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$stmt->execute();
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// release lock in case of promotion
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$this->unlockShared($key);
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}
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public function waitAndSaveRead(Key $key)
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{
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// prevent concurrency within the same connection
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// Internal store does not allow blocking mode, because there is no way to acquire one in a single process
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$this->getInternalStore()->saveRead($key);
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$sql = 'SELECT pg_advisory_lock_shared(:key)';
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$stmt->execute();
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// release lock in case of demotion
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$this->unlock($key);
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}
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/**
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* Returns a hashed version of the key.
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*/
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private function getHashedKey(Key $key): int
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{
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return crc32((string) $key);
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}
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private function unlock(Key $key): void
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{
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while (true) {
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$sql = "SELECT pg_advisory_unlock(objid::bigint) FROM pg_locks WHERE locktype='advisory' AND mode='ExclusiveLock' AND objid=:key AND pid=pg_backend_pid()";
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$result = $stmt->execute();
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if (0 === (\is_object($result) ? $result : $stmt)->rowCount()) {
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break;
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}
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}
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}
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private function unlockShared(Key $key): void
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{
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while (true) {
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$sql = "SELECT pg_advisory_unlock_shared(objid::bigint) FROM pg_locks WHERE locktype='advisory' AND mode='ShareLock' AND objid=:key AND pid=pg_backend_pid()";
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$stmt = $this->getConnection()->prepare($sql);
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$stmt->bindValue(':key', $this->getHashedKey($key));
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$result = $stmt->execute();
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if (0 === (\is_object($result) ? $result : $stmt)->rowCount()) {
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break;
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}
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}
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}
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/**
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* @return \PDO|Connection
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*/
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private function getConnection(): object
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{
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if (null === $this->conn) {
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if (strpos($this->dsn, '://')) {
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if (!class_exists(DriverManager::class)) {
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throw new InvalidArgumentException(sprintf('Failed to parse the DSN "%s". Try running "composer require doctrine/dbal".', $this->dsn));
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}
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$this->conn = DriverManager::getConnection(['url' => $this->dsn]);
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} else {
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$this->conn = new \PDO($this->dsn, $this->username, $this->password, $this->connectionOptions);
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$this->conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
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}
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$this->checkDriver();
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}
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return $this->conn;
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}
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private function checkDriver(): void
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{
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if ($this->conn instanceof \PDO) {
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if ('pgsql' !== $driver = $this->conn->getAttribute(\PDO::ATTR_DRIVER_NAME)) {
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throw new InvalidArgumentException(sprintf('The adapter "%s" does not support the "%s" driver.', __CLASS__, $driver));
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}
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} else {
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$driver = $this->conn->getDriver();
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switch (true) {
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case $driver instanceof \Doctrine\DBAL\Driver\PDOPgSql\Driver:
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case $driver instanceof \Doctrine\DBAL\Driver\PDO\PgSQL\Driver:
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break;
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default:
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throw new InvalidArgumentException(sprintf('The adapter "%s" does not support the "%s" driver.', __CLASS__, \get_class($driver)));
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}
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}
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}
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private function getInternalStore(): PersistingStoreInterface
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{
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$namespace = spl_object_hash($this->getConnection());
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return self::$storeRegistry[$namespace] ?? self::$storeRegistry[$namespace] = new InMemoryStore();
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}
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}
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@ -102,6 +102,9 @@ class RedisStore implements SharedLockStoreInterface
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$this->checkNotExpired($key);
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}
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/**
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* {@inheritdoc}
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*/
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public function saveRead(Key $key)
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{
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$script = '
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@ -97,8 +97,16 @@ class StoreFactory
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case 0 === strpos($connection, 'sqlite3://'):
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return new PdoStore($connection);
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case 0 === strpos($connection, 'pgsql+advisory:'):
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case 0 === strpos($connection, 'postgres+advisory://'):
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case 0 === strpos($connection, 'postgresql+advisory://'):
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return new PostgreSqlStore(preg_replace('/^([^:+]+)\+advisory/', '$1', $connection));
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case 0 === strpos($connection, 'zookeeper://'):
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return new ZookeeperStore(ZookeeperStore::createConnection($connection));
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case 'in-memory' === $connection:
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return new InMemoryStore();
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}
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throw new InvalidArgumentException(sprintf('Unsupported Connection: "%s".', $connection));
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@ -61,11 +61,11 @@ trait BlockingStoreTestTrait
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$store->save($key);
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$this->fail('The store saves a locked key.');
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} catch (LockConflictedException $e) {
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} finally {
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// send the ready signal to the child
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posix_kill($childPID, \SIGHUP);
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}
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// send the ready signal to the child
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posix_kill($childPID, \SIGHUP);
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// This call should be blocked by the child #1
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$store->waitAndSave($key);
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$this->assertTrue($store->exists($key));
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|
31
src/Symfony/Component/Lock/Tests/Store/InMemoryStoreTest.php
Normal file
31
src/Symfony/Component/Lock/Tests/Store/InMemoryStoreTest.php
Normal file
@ -0,0 +1,31 @@
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<?php
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|
||||
/*
|
||||
* This file is part of the Symfony package.
|
||||
*
|
||||
* (c) Fabien Potencier <fabien@symfony.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Symfony\Component\Lock\Tests\Store;
|
||||
|
||||
use Symfony\Component\Lock\PersistingStoreInterface;
|
||||
use Symfony\Component\Lock\Store\InMemoryStore;
|
||||
|
||||
/**
|
||||
* @author Jérémy Derussé <jeremy@derusse.com>
|
||||
*/
|
||||
class InMemoryStoreTest extends AbstractStoreTest
|
||||
{
|
||||
use SharedLockStoreTestTrait;
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function getStore(): PersistingStoreInterface
|
||||
{
|
||||
return new InMemoryStore();
|
||||
}
|
||||
}
|
@ -0,0 +1,50 @@
|
||||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Symfony package.
|
||||
*
|
||||
* (c) Fabien Potencier <fabien@symfony.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Symfony\Component\Lock\Tests\Store;
|
||||
|
||||
use Symfony\Component\Lock\Exception\InvalidArgumentException;
|
||||
use Symfony\Component\Lock\Key;
|
||||
use Symfony\Component\Lock\PersistingStoreInterface;
|
||||
use Symfony\Component\Lock\Store\PostgreSqlStore;
|
||||
|
||||
/**
|
||||
* @author Jérémy Derussé <jeremy@derusse.com>
|
||||
*
|
||||
* @requires extension pdo_pgsql
|
||||
* @group integration
|
||||
*/
|
||||
class PostgreSqlDbalStoreTest extends AbstractStoreTest
|
||||
{
|
||||
use SharedLockStoreTestTrait;
|
||||
use BlockingStoreTestTrait;
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function getStore(): PersistingStoreInterface
|
||||
{
|
||||
if (!getenv('POSTGRES_HOST')) {
|
||||
$this->markTestSkipped('Missing POSTGRES_HOST env variable');
|
||||
}
|
||||
|
||||
return new PostgreSqlStore('pgsql://postgres:password@'.getenv('POSTGRES_HOST'));
|
||||
}
|
||||
|
||||
public function testInvalidDriver()
|
||||
{
|
||||
$store = new PostgreSqlStore('sqlite:///foo.db');
|
||||
|
||||
$this->expectException(InvalidArgumentException::class);
|
||||
$this->expectExceptionMessage('The adapter "Symfony\Component\Lock\Store\PostgreSqlStore" does not support');
|
||||
$store->exists(new Key('foo'));
|
||||
}
|
||||
}
|
@ -0,0 +1,53 @@
|
||||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Symfony package.
|
||||
*
|
||||
* (c) Fabien Potencier <fabien@symfony.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Symfony\Component\Lock\Tests\Store;
|
||||
|
||||
use Symfony\Component\Lock\Exception\InvalidArgumentException;
|
||||
use Symfony\Component\Lock\Key;
|
||||
use Symfony\Component\Lock\PersistingStoreInterface;
|
||||
use Symfony\Component\Lock\Store\PostgreSqlStore;
|
||||
|
||||
/**
|
||||
* @author Jérémy Derussé <jeremy@derusse.com>
|
||||
*
|
||||
* @requires extension pdo_pgsql
|
||||
* @group integration
|
||||
*/
|
||||
class PostgreSqlStoreTest extends AbstractStoreTest
|
||||
{
|
||||
use SharedLockStoreTestTrait;
|
||||
use BlockingStoreTestTrait;
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function getStore(): PersistingStoreInterface
|
||||
{
|
||||
if (!getenv('POSTGRES_HOST')) {
|
||||
$this->markTestSkipped('Missing POSTGRES_HOST env variable');
|
||||
}
|
||||
|
||||
return new PostgreSqlStore('pgsql:host='.getenv('POSTGRES_HOST'), ['db_username' => 'postgres', 'db_password' => 'password']);
|
||||
}
|
||||
|
||||
/**
|
||||
* @requires extension pdo_sqlite
|
||||
*/
|
||||
public function testInvalidDriver()
|
||||
{
|
||||
$store = new PostgreSqlStore('sqlite:/tmp/foo.db');
|
||||
|
||||
$this->expectException(InvalidArgumentException::class);
|
||||
$this->expectExceptionMessage('The adapter "Symfony\Component\Lock\Store\PostgreSqlStore" does not support');
|
||||
$store->exists(new Key('foo'));
|
||||
}
|
||||
}
|
@ -15,9 +15,11 @@ use PHPUnit\Framework\TestCase;
|
||||
use Symfony\Component\Cache\Adapter\AbstractAdapter;
|
||||
use Symfony\Component\Cache\Traits\RedisProxy;
|
||||
use Symfony\Component\Lock\Store\FlockStore;
|
||||
use Symfony\Component\Lock\Store\InMemoryStore;
|
||||
use Symfony\Component\Lock\Store\MemcachedStore;
|
||||
use Symfony\Component\Lock\Store\MongoDbStore;
|
||||
use Symfony\Component\Lock\Store\PdoStore;
|
||||
use Symfony\Component\Lock\Store\PostgreSqlStore;
|
||||
use Symfony\Component\Lock\Store\RedisStore;
|
||||
use Symfony\Component\Lock\Store\SemaphoreStore;
|
||||
use Symfony\Component\Lock\Store\StoreFactory;
|
||||
@ -77,19 +79,25 @@ class StoreFactoryTest extends TestCase
|
||||
yield ['sqlite::memory:', PdoStore::class];
|
||||
yield ['mysql:host=localhost;dbname=test;', PdoStore::class];
|
||||
yield ['pgsql:host=localhost;dbname=test;', PdoStore::class];
|
||||
yield ['pgsql+advisory:host=localhost;dbname=test;', PostgreSqlStore::class];
|
||||
yield ['oci:host=localhost;dbname=test;', PdoStore::class];
|
||||
yield ['sqlsrv:server=localhost;Database=test', PdoStore::class];
|
||||
yield ['mysql://server.com/test', PdoStore::class];
|
||||
yield ['mysql2://server.com/test', PdoStore::class];
|
||||
yield ['pgsql://server.com/test', PdoStore::class];
|
||||
yield ['pgsql+advisory://server.com/test', PostgreSqlStore::class];
|
||||
yield ['postgres://server.com/test', PdoStore::class];
|
||||
yield ['postgres+advisory://server.com/test', PostgreSqlStore::class];
|
||||
yield ['postgresql://server.com/test', PdoStore::class];
|
||||
yield ['postgresql+advisory://server.com/test', PostgreSqlStore::class];
|
||||
yield ['sqlite:///tmp/test', PdoStore::class];
|
||||
yield ['sqlite3:///tmp/test', PdoStore::class];
|
||||
yield ['oci:///server.com/test', PdoStore::class];
|
||||
yield ['mssql:///server.com/test', PdoStore::class];
|
||||
}
|
||||
|
||||
yield ['in-memory', InMemoryStore::class];
|
||||
|
||||
yield ['flock', FlockStore::class];
|
||||
yield ['flock://'.sys_get_temp_dir(), FlockStore::class];
|
||||
}
|
||||
|
Reference in New Issue
Block a user