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<?php
namespace Bitrix\Sender\Posting;
use Bitrix\Main\Application;
use Bitrix\Main\Config\Option;
use Bitrix\Main\DB;
class Locker
{
/**
* @param string $key
* @param int $id
*
* @return bool
* @throws DB\SqlQueryException
*/
public static function lock(string $key, int $id)
{
$uniqueSalt = self::getLockUniqueSalt();
$connection = Application::getInstance()->getConnection();
if ($connection instanceof DB\MysqlCommonConnection)
{
$lockDb = $connection->query(
sprintf(
"SELECT GET_LOCK('%s_%s_%d', 0) as L",
$uniqueSalt,
$key,
$id
),
false,
"File: ".__FILE__."<br>Line: ".__LINE__
);
$lock = $lockDb->fetch();
if ($lock["L"] == "1")
{
return true;
}
else
{
return false;
}
}
return false;
}
public static function unlock(string $key, int $id)
{
$id = intval($id);
$connection = Application::getInstance()->getConnection();
if ($connection instanceof DB\MysqlCommonConnection)
{
$uniqueSalt = self::getLockUniqueSalt(false);
if (!$uniqueSalt)
{
return false;
}
$lockDb = $connection->query(
sprintf(
"SELECT RELEASE_LOCK('%s_%s_%d') as L",
$uniqueSalt,
$key,
$id
)
);
$lock = $lockDb->fetch();
if ($lock["L"] == "0")
{
return false;
}
else
{
return true;
}
}
return false;
}
protected static function getLockUniqueSalt($generate = true)
{
$uniqueSalt = Option::get("main", "server_uniq_id", "");
if ($uniqueSalt == '' && $generate)
{
$uniqueSalt = hash('sha256', uniqid(rand(), true));
Option::set("main", "server_uniq_id", $uniqueSalt);
}
return $uniqueSalt;
}
}