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<?php declare(strict_types=1); |
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namespace DaveRandom\LibLifxLan; |
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// @codeCoverageIgnoreStart |
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use DaveRandom\LibLifxLan\Exceptions\InvalidValueException; |
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if (\strlen(\pack('e', 0.1)) === 4) { |
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\define(__NAMESPACE__ . '\\FLOAT32_CODE', 'e'); |
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} else if (\strlen(\pack('g', 0.1)) === 4) { |
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\define(__NAMESPACE__ . '\\FLOAT32_CODE', 'g'); |
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} else { |
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/** @noinspection PhpUnhandledExceptionInspection */ |
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throw new \Error('Cannot pack()/unpack() floating point numbers to a 32-bit little-endian representation'); |
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} |
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const UINT32_MIN = \PHP_INT_SIZE === 4 ? \PHP_INT_MIN : 0; |
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const UINT32_MAX = \PHP_INT_SIZE === 4 ? \PHP_INT_MIN : 0xffffffff; |
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// @codeCoverageIgnoreEnd |
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/** |
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* @param \DateTimeInterface $dateTime |
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* @return \DateTimeImmutable |
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*/ |
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function datetimeinterface_to_datetimeimmutable(\DateTimeInterface $dateTime): \DateTimeImmutable |
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{ |
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if ($dateTime instanceof \DateTimeImmutable) { |
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return $dateTime; |
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} |
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\assert($dateTime instanceof \DateTime, new \Error('DateTimeInterface is not DateTimeImmutable or DateTime???')); |
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return \DateTimeImmutable::createFromMutable($dateTime); |
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} |
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/** |
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* @param int $timestamp |
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* @return \DateTimeImmutable |
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* @throws InvalidValueException |
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*/ |
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function nanotime_to_datetimeimmutable(int $timestamp): \DateTimeImmutable |
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{ |
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static $utcTimeZone; |
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$usecs = (int)(($timestamp % 1000000000) / 1000); |
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$secs = (int)($timestamp / 1000000000); |
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$result = \DateTimeImmutable::createFromFormat( |
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'u U', |
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\sprintf("%06d %d", $usecs, $secs), |
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$utcTimeZone ?? ($utcTimeZone = new \DateTimeZone('UTC')) |
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); |
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if ($result === false) { |
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throw new InvalidValueException("Could not convert nanotime to DateTimeImmutable instance"); |
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} |
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return $result; |
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} |
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/** |
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* @param \DateTimeInterface $dateTime |
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* @return int |
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* @throws InvalidValueException |
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*/ |
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function datetimeinterface_to_nanotime(\DateTimeInterface $dateTime): int |
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{ |
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$result = ($dateTime->format('U') * 1000000000) + ($dateTime->format('u') * 1000); |
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if ($result < 0) { |
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throw new InvalidValueException("Timestamp {$dateTime->format('Y-m-d H:i:s.u')} is negative"); |
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} |
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return $result; |
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} |
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function int16_to_uint16(int $signed): int |
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{ |
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if ($signed >= 0) { |
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return $signed & 0x7fff; |
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} |
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return 0x8000 | (($signed & 0x7fff) + 1); |
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} |
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function uint16_to_int16(int $unsigned): int |
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{ |
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if (!($unsigned & 0x8000)) { |
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return $unsigned; |
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} |
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return -(($unsigned & 0x7fff) + 1); |
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} |
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DaveRandom /
LibLifxLan
