current = 0; $this->buffer_size = $size; $this->buffer = \str_repeat(\chr(0), $this->buffer_size); } public function getData() { return $this->buffer; } public function writeVarint32($value, $trim) { $bytes = \str_repeat(\chr(0), self::MAX_VARINT64_BYTES); $size = self::writeVarintToArray($value, $bytes, $trim); return $this->writeRaw($bytes, $size); } public function writeVarint64($value) { $bytes = \str_repeat(\chr(0), self::MAX_VARINT64_BYTES); $size = self::writeVarintToArray($value, $bytes); return $this->writeRaw($bytes, $size); } public function writeLittleEndian32($value) { $bytes = \str_repeat(\chr(0), 4); $size = self::writeLittleEndian32ToArray($value, $bytes); return $this->writeRaw($bytes, $size); } public function writeLittleEndian64($value) { $bytes = \str_repeat(\chr(0), 8); $size = self::writeLittleEndian64ToArray($value, $bytes); return $this->writeRaw($bytes, $size); } public function writeTag($tag) { return $this->writeVarint32($tag, \true); } public function writeRaw($data, $size) { if ($this->buffer_size < $size) { \trigger_error("Output stream doesn't have enough buffer."); return \false; } for ($i = 0; $i < $size; $i++) { $this->buffer[$this->current] = $data[$i]; $this->current++; $this->buffer_size--; } return \true; } public static function writeVarintToArray($value, &$buffer, $trim = \false) { $current = 0; $high = 0; $low = 0; if (\PHP_INT_SIZE == 4) { GPBUtil::divideInt64ToInt32($value, $high, $low, $trim); } else { $low = $value; } while ($low >= 0x80 || $low < 0 || $high != 0) { $buffer[$current] = \chr($low | 0x80); $value = $value >> 7 & ~(0x7f << (\PHP_INT_SIZE << 3) - 7); $carry = ($high & 0x7f) << (\PHP_INT_SIZE << 3) - 7; $high = $high >> 7 & ~(0x7f << (\PHP_INT_SIZE << 3) - 7); $low = $low >> 7 & ~(0x7f << (\PHP_INT_SIZE << 3) - 7) | $carry; $current++; } $buffer[$current] = \chr($low); return $current + 1; } private static function writeLittleEndian32ToArray($value, &$buffer) { $buffer[0] = \chr($value & 0xff); $buffer[1] = \chr($value >> 8 & 0xff); $buffer[2] = \chr($value >> 16 & 0xff); $buffer[3] = \chr($value >> 24 & 0xff); return 4; } private static function writeLittleEndian64ToArray($value, &$buffer) { $high = 0; $low = 0; if (\PHP_INT_SIZE == 4) { GPBUtil::divideInt64ToInt32($value, $high, $low); } else { $low = $value & 0xffffffff; $high = $value >> 32 & 0xffffffff; } $buffer[0] = \chr($low & 0xff); $buffer[1] = \chr($low >> 8 & 0xff); $buffer[2] = \chr($low >> 16 & 0xff); $buffer[3] = \chr($low >> 24 & 0xff); $buffer[4] = \chr($high & 0xff); $buffer[5] = \chr($high >> 8 & 0xff); $buffer[6] = \chr($high >> 16 & 0xff); $buffer[7] = \chr($high >> 24 & 0xff); return 8; } }