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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2024 Robin Appelman <robin@icewind.nl>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\DB\QueryBuilder\Sharded;
use OCP\DB\QueryBuilder\Sharded\IShardMapper;
/**
* Map string key to an int-range by hashing the key
*/
class HashShardMapper implements IShardMapper {
public function getShardForKey(int $key, int $count): int {
$int = unpack('L', substr(md5((string)$key, true), 0, 4))[1];
return $int % $count;
}
}
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