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<?php |
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|
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/** |
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* This file is part of the ramsey/uuid library |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @copyright Copyright (c) Ben Ramsey <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace Ramsey\Uuid; |
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|
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/** |
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* Provides binary math utilities |
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*/ |
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class BinaryUtils |
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{ |
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/** |
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* Applies the variant field to the 16-bit clock sequence |
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* |
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* @link https://www.rfc-editor.org/rfc/rfc9562#section-4.1 RFC 9562, 4.1. Variant Field |
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* |
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* @param int $clockSeq The 16-bit clock sequence value before the variant is applied |
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* |
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* @return int The 16-bit clock sequence multiplexed with the UUID variant |
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* |
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* @pure |
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*/ |
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public static function applyVariant(int $clockSeq): int |
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{ |
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return ($clockSeq & 0x3fff) | 0x8000; |
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} |
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|
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/** |
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* Applies the version field to the 16-bit `time_hi_and_version` field |
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* |
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* @link https://www.rfc-editor.org/rfc/rfc9562#section-4.2 RFC 9562, 4.2. Version Field |
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* |
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* @param int $timeHi The value of the 16-bit `time_hi_and_version` field before the version is applied |
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* @param int $version The version to apply to the `time_hi` field |
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* |
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* @return int The 16-bit time_hi field of the timestamp multiplexed with the UUID version number |
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* |
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* @pure |
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*/ |
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public static function applyVersion(int $timeHi, int $version): int |
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{ |
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return ($timeHi & 0x0fff) | ($version << 12); |
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} |
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} |
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