Builder
3 years ago
Codec
3 years ago
Converter
3 years ago
Exception
3 years ago
Fields
3 years ago
Generator
3 years ago
Guid
3 years ago
Lazy
3 years ago
Math
3 years ago
Nonstandard
3 years ago
Provider
3 years ago
Rfc4122
3 years ago
Type
3 years ago
Validator
3 years ago
BinaryUtils.php
3 years ago
DegradedUuid.php
3 years ago
DeprecatedUuidInterface.php
3 years ago
DeprecatedUuidMethodsTrait.php
3 years ago
FeatureSet.php
3 years ago
Uuid.php
3 years ago
UuidFactory.php
3 years ago
UuidFactoryInterface.php
3 years ago
UuidInterface.php
3 years ago
functions.php
3 years ago
BinaryUtils.php
64 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This file is part of the ramsey/uuid library |
| 5 | * |
| 6 | * For the full copyright and license information, please view the LICENSE |
| 7 | * file that was distributed with this source code. |
| 8 | * |
| 9 | * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com> |
| 10 | * @license http://opensource.org/licenses/MIT MIT |
| 11 | */ |
| 12 | |
| 13 | declare(strict_types=1); |
| 14 | |
| 15 | namespace Ramsey\Uuid; |
| 16 | |
| 17 | /** |
| 18 | * Provides binary math utilities |
| 19 | */ |
| 20 | class BinaryUtils |
| 21 | { |
| 22 | /** |
| 23 | * Applies the RFC 4122 variant field to the 16-bit clock sequence |
| 24 | * |
| 25 | * @link http://tools.ietf.org/html/rfc4122#section-4.1.1 RFC 4122, § 4.1.1: Variant |
| 26 | * |
| 27 | * @param int $clockSeq The 16-bit clock sequence value before the RFC 4122 |
| 28 | * variant is applied |
| 29 | * |
| 30 | * @return int The 16-bit clock sequence multiplexed with the UUID variant |
| 31 | * |
| 32 | * @psalm-pure |
| 33 | */ |
| 34 | public static function applyVariant(int $clockSeq): int |
| 35 | { |
| 36 | $clockSeq = $clockSeq & 0x3fff; |
| 37 | $clockSeq |= 0x8000; |
| 38 | |
| 39 | return $clockSeq; |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Applies the RFC 4122 version number to the 16-bit `time_hi_and_version` field |
| 44 | * |
| 45 | * @link http://tools.ietf.org/html/rfc4122#section-4.1.3 RFC 4122, § 4.1.3: Version |
| 46 | * |
| 47 | * @param int $timeHi The value of the 16-bit `time_hi_and_version` field |
| 48 | * before the RFC 4122 version is applied |
| 49 | * @param int $version The RFC 4122 version to apply to the `time_hi` field |
| 50 | * |
| 51 | * @return int The 16-bit time_hi field of the timestamp multiplexed with |
| 52 | * the UUID version number |
| 53 | * |
| 54 | * @psalm-pure |
| 55 | */ |
| 56 | public static function applyVersion(int $timeHi, int $version): int |
| 57 | { |
| 58 | $timeHi = $timeHi & 0x0fff; |
| 59 | $timeHi |= $version << 12; |
| 60 | |
| 61 | return $timeHi; |
| 62 | } |
| 63 | } |
| 64 |