%PDF-
%PDF-
Mini Shell
Mini Shell
<?
namespace Bitrix\Main\Composite\Internals;
use Bitrix\Main\Application;
use Bitrix\Main\DB\MysqlCommonConnection;
class Locker
{
const CONNECTION_NAME = "composite";
/**
* Tries to obtain a lock with a name given by the string $id
* Supports only Mysql.
*
* @param string $id Lock Name.
* @return bool Returns true if lock was obtained.
*/
public static function lock($id)
{
$result = true;
$connection = static::getConnection();
if ($connection instanceof MysqlCommonConnection)
{
$lock = $connection->queryScalar(
sprintf("SELECT GET_LOCK('%s', %d)", md5($id), 0)
);
$result = $lock != "0";
}
return $result;
}
/**
* Releases the lock named by the string $id
* Supports only Mysql
*
* @param string $id Lock Name.
* @return bool Returns true if lock was released.
*/
public static function unlock($id)
{
$connection = static::getConnection();
if ($connection instanceof MysqlCommonConnection)
{
$connection->queryExecute(
sprintf("DO RELEASE_LOCK('%s')", md5($id))
);
}
return true;
}
/**
* Gets a new connection for the lock mechanism
* @return \Bitrix\Main\DB\Connection
*/
private static function getConnection()
{
$pool = Application::getInstance()->getConnectionPool();
$connection = $pool->getConnection(static::CONNECTION_NAME);
if (!$connection)
{
$connection = $pool->cloneConnection(
$pool::DEFAULT_CONNECTION_NAME,
static::CONNECTION_NAME
);
}
return $connection;
}
}
Zerion Mini Shell 1.0