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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Mutex; |
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use InvalidArgumentException; |
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use PDO; |
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/** |
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* OracleMutex implements mutex "lock" mechanism via Oracle locks. |
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* |
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* Application configuration example: |
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* |
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* @see http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_lock.htm |
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*/ |
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class OracleMutex extends Mutex |
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{ |
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/** available lock modes */ |
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public const MODE_X = 'X_MODE'; |
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public const MODE_NL = 'NL_MODE'; |
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public const MODE_S = 'S_MODE'; |
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public const MODE_SX = 'SX_MODE'; |
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public const MODE_SS = 'SS_MODE'; |
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public const MODE_SSX = 'SSX_MODE'; |
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protected PDO $connection; |
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private bool $released = false; |
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/** |
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* @var string lock mode to be used. |
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* |
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* @see http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_lock.htm#CHDBCFDI |
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*/ |
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private string $lockMode; |
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/** |
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* @var bool whether to release lock on commit. |
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*/ |
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private bool $releaseOnCommit; |
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private string $name; |
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/** |
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* OracleMutex constructor. |
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* |
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* @param string $name Mutex name. |
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* @param PDO $connection PDO connection instance to use. |
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* @param string $lockMode Lock mode to be used. |
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* @param bool $releaseOnCommit Whether to release lock on commit. |
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*/ |
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public function __construct( |
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string $name, |
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PDO $connection, |
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string $lockMode = self::MODE_X, |
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bool $releaseOnCommit = false |
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) { |
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$this->name = $name; |
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$this->connection = $connection; |
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$driverName = $connection->getAttribute(PDO::ATTR_DRIVER_NAME); |
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if (in_array($driverName, ['oci', 'obdb'])) { |
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throw new InvalidArgumentException( |
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'Connection must be configured to use Oracle database. Got ' . $driverName . '.' |
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); |
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} |
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$this->lockMode = $lockMode; |
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$this->releaseOnCommit = $releaseOnCommit; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @see http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_lock.htm |
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*/ |
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public function acquire(int $timeout = 0): bool |
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{ |
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$lockStatus = null; |
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// clean vars before using |
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$releaseOnCommit = $this->releaseOnCommit ? 'TRUE' : 'FALSE'; |
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$timeout = (int) abs($timeout); |
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// inside pl/sql scopes pdo binding not working correctly :( |
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$statement = $this->connection->prepare('DECLARE |
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handle VARCHAR2(128); |
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BEGIN |
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DBMS_LOCK.ALLOCATE_UNIQUE(:name, handle); |
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:lockStatus := DBMS_LOCK.REQUEST( |
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handle, |
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DBMS_LOCK.' . $this->lockMode . ', |
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' . $timeout . ', |
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' . $releaseOnCommit . ' |
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); |
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END;'); |
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$statement->bindValue(':name', $this->name); |
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$statement->bindParam(':lockStatus', $lockStatus, PDO::PARAM_INT, 1); |
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$statement->execute(); |
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if ($lockStatus === 0 || $lockStatus === '0') { |
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$this->released = false; |
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return true; |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @see http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_lock.htm |
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*/ |
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public function release(): void |
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{ |
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$releaseStatus = null; |
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$statement = $this->connection->prepare( |
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'DECLARE |
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handle VARCHAR2(128); |
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BEGIN |
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DBMS_LOCK.ALLOCATE_UNIQUE(:name, handle); |
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:result := DBMS_LOCK.RELEASE(handle); |
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END;' |
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); |
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$statement->bindValue(':name', $this->name); |
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$statement->bindParam(':result', $releaseStatus, PDO::PARAM_INT, 1); |
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$statement->execute(); |
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if ($releaseStatus !== 0 && $releaseStatus !== '0') { |
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throw new RuntimeExceptions("Unable to release lock \"$this->name\"."); |
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} |
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$this->released = true; |
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} |
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public function isReleased(): bool |
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{ |
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return $this->released; |
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} |
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} |
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yiisoft /
mutex-pdo-oracle
The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths