From f4bb7bcbff3770387c2fecfa91ce4a60b916a474 Mon Sep 17 00:00:00 2001 From: Mario Date: Fri, 27 Nov 2020 08:04:00 +0000 Subject: update composer libs --- .../src/Converter/Time/GenericTimeConverter.php | 124 +++++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php (limited to 'vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php') diff --git a/vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php b/vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php new file mode 100644 index 000000000..a8aa64b73 --- /dev/null +++ b/vendor/ramsey/uuid/src/Converter/Time/GenericTimeConverter.php @@ -0,0 +1,124 @@ + + * @license http://opensource.org/licenses/MIT MIT + */ + +declare(strict_types=1); + +namespace Ramsey\Uuid\Converter\Time; + +use Ramsey\Uuid\Converter\TimeConverterInterface; +use Ramsey\Uuid\Math\CalculatorInterface; +use Ramsey\Uuid\Math\RoundingMode; +use Ramsey\Uuid\Type\Hexadecimal; +use Ramsey\Uuid\Type\Integer as IntegerObject; +use Ramsey\Uuid\Type\Time; + +use function explode; +use function str_pad; + +use const STR_PAD_LEFT; + +/** + * GenericTimeConverter uses the provided calculator to calculate and convert + * time values + * + * @psalm-immutable + */ +class GenericTimeConverter implements TimeConverterInterface +{ + /** + * The number of 100-nanosecond intervals from the Gregorian calendar epoch + * to the Unix epoch. + */ + private const GREGORIAN_TO_UNIX_INTERVALS = '122192928000000000'; + + /** + * The number of 100-nanosecond intervals in one second. + */ + private const SECOND_INTERVALS = '10000000'; + + /** + * The number of 100-nanosecond intervals in one microsecond. + */ + private const MICROSECOND_INTERVALS = '10'; + + /** + * @var CalculatorInterface + */ + private $calculator; + + public function __construct(CalculatorInterface $calculator) + { + $this->calculator = $calculator; + } + + public function calculateTime(string $seconds, string $microseconds): Hexadecimal + { + $timestamp = new Time($seconds, $microseconds); + + // Convert the seconds into a count of 100-nanosecond intervals. + $sec = $this->calculator->multiply( + $timestamp->getSeconds(), + new IntegerObject(self::SECOND_INTERVALS) + ); + + // Convert the microseconds into a count of 100-nanosecond intervals. + $usec = $this->calculator->multiply( + $timestamp->getMicroseconds(), + new IntegerObject(self::MICROSECOND_INTERVALS) + ); + + // Combine the seconds and microseconds intervals and add the count of + // 100-nanosecond intervals from the Gregorian calendar epoch to the + // Unix epoch. This gives us the correct count of 100-nanosecond + // intervals since the Gregorian calendar epoch for the given seconds + // and microseconds. + /** @var IntegerObject $uuidTime */ + $uuidTime = $this->calculator->add( + $sec, + $usec, + new IntegerObject(self::GREGORIAN_TO_UNIX_INTERVALS) + ); + + $uuidTimeHex = str_pad( + $this->calculator->toHexadecimal($uuidTime)->toString(), + 16, + '0', + STR_PAD_LEFT + ); + + return new Hexadecimal($uuidTimeHex); + } + + public function convertTime(Hexadecimal $uuidTimestamp): Time + { + // From the total, subtract the number of 100-nanosecond intervals from + // the Gregorian calendar epoch to the Unix epoch. This gives us the + // number of 100-nanosecond intervals from the Unix epoch, which also + // includes the microtime. + $epochNanoseconds = $this->calculator->subtract( + $this->calculator->toInteger($uuidTimestamp), + new IntegerObject(self::GREGORIAN_TO_UNIX_INTERVALS) + ); + + // Convert the 100-nanosecond intervals into seconds and microseconds. + $unixTimestamp = $this->calculator->divide( + RoundingMode::HALF_UP, + 6, + $epochNanoseconds, + new IntegerObject(self::SECOND_INTERVALS) + ); + + $split = explode('.', (string) $unixTimestamp, 2); + + return new Time($split[0], $split[1] ?? 0); + } +} -- cgit v1.2.3