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