defender-security / vendor / ramsey / uuid / src / BinaryUtils.php

BinaryUtils.php in Defender Security – Malware Scanner, Login Security & Firewall 5.6.0, at vendor/ramsey/uuid/src/BinaryUtils.php

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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 <[email protected]>
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