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Diffstat (limited to 'php/src/Google/Protobuf/Internal/OutputStream.php')
-rw-r--r-- | php/src/Google/Protobuf/Internal/OutputStream.php | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/php/src/Google/Protobuf/Internal/OutputStream.php b/php/src/Google/Protobuf/Internal/OutputStream.php deleted file mode 100644 index 8c6d9b68..00000000 --- a/php/src/Google/Protobuf/Internal/OutputStream.php +++ /dev/null @@ -1,159 +0,0 @@ -<?php - -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -namespace Google\Protobuf\Internal; - -class OutputStream -{ - - private $buffer; - private $buffer_size; - private $current; - - const MAX_VARINT64_BYTES = 10; - - public function __construct($size) - { - $this->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) - { - $bytes = str_repeat(chr(0), self::MAX_VARINT64_BYTES); - $size = self::writeVarintToArray($value, $bytes); - 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); - } - - 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++; - $this->buffer_size--; - } - return true; - } - - private static function writeVarintToArray($value, &$buffer) - { - $current = 0; - - $high = 0; - $low = 0; - if (PHP_INT_SIZE == 4) { - GPBUtil::divideInt64ToInt32($value, $high, $low); - } else { - $low = $value; - } - - while ($low >= 0x80 || $low < 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 & 0x000000FF); - $buffer[1] = chr(($value >> 8) & 0x000000FF); - $buffer[2] = chr(($value >> 16) & 0x000000FF); - $buffer[3] = chr(($value >> 24) & 0x000000FF); - 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 & 0x000000FF); - $buffer[1] = chr(($low >> 8) & 0x000000FF); - $buffer[2] = chr(($low >> 16) & 0x000000FF); - $buffer[3] = chr(($low >> 24) & 0x000000FF); - $buffer[4] = chr($high & 0x000000FF); - $buffer[5] = chr(($high >> 8) & 0x000000FF); - $buffer[6] = chr(($high >> 16) & 0x000000FF); - $buffer[7] = chr(($high >> 24) & 0x000000FF); - return 8; - } - -} |