public function calculateTime($seconds, $microSeconds)
{
$uuidTime = new \Moontoast\Math\BigNumber('0');
$sec = new \Moontoast\Math\BigNumber($seconds);
$sec->multiply('10000000');
$usec = new \Moontoast\Math\BigNumber($microSeconds);
$usec->multiply('10');
$uuidTime->add($sec)->add($usec)->add('122192928000000000');
$uuidTimeHex = sprintf('%016s', $uuidTime->convertToBase(16));
return array('low' => substr($uuidTimeHex, 8), 'mid' => substr($uuidTimeHex, 4, 4), 'hi' => substr($uuidTimeHex, 0, 4));
}
public function getDateTime()
{
if ($this->getVersion() != 1) {
throw new UnsupportedOperationException('Not a time-based UUID');
}
$time = $this->converter->fromHex($this->getTimestampHex());
$ts = new \Moontoast\Math\BigNumber($time, 20);
$ts->subtract('122192928000000000');
$ts->divide('10000000.0');
$ts->round();
$unixTime = $ts->getValue();
return new \DateTime("@{$unixTime}");
}
/**
* Calculates the UUID time fields from a UNIX timestamp
*
* UUID time is a 60-bit time value as a count of 100-nanosecond intervals
* since 00:00:00.00, 15 October 1582.
*
* @param int $sec Seconds since the Unix Epoch
* @param int $usec Microseconds
* @return array
* @throws Exception\UnsatisfiedDependencyException if called on a 32-bit system
* and Moontoast\Math\BigNumber is not present
*/
protected static function calculateUuidTime($sec, $usec)
{
if (self::is64BitSystem()) {
// 0x01b21dd213814000 is the number of 100-ns intervals between the
// UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
$uuidTime = $sec * 10000000 + $usec * 10 + 0x1b21dd213814000;
return array('low' => sprintf('%08x', $uuidTime & 0xffffffff), 'mid' => sprintf('%04x', $uuidTime >> 32 & 0xffff), 'hi' => sprintf('%04x', $uuidTime >> 48 & 0xfff));
}
if (self::hasBigNumber()) {
$uuidTime = new \Moontoast\Math\BigNumber('0');
$sec = new \Moontoast\Math\BigNumber($sec);
$sec->multiply('10000000');
$usec = new \Moontoast\Math\BigNumber($usec);
$usec->multiply('10');
$uuidTime->add($sec)->add($usec)->add('122192928000000000');
$uuidTimeHex = sprintf('%016s', $uuidTime->convertToBase(16));
return array('low' => substr($uuidTimeHex, 8), 'mid' => substr($uuidTimeHex, 4, 4), 'hi' => substr($uuidTimeHex, 0, 4));
}
throw new Exception\UnsatisfiedDependencyException('When calling ' . __METHOD__ . ' on a 32-bit system, ' . 'Moontoast\\Math\\BigNumber must be present in order ' . 'to generate version 1 UUIDs');
}
