Tim Starling
61 linhas
2.0 KiB
C++
61 linhas
2.0 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_HPHP_COMPRESSION_H_
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#define incl_HPHP_COMPRESSION_H_
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#include "hphp/util/base.h"
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#include <zlib.h>
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// encoding_mode
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#define CODING_GZIP 1
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#define CODING_DEFLATE 2
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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// inefficient way of testing whether a file can be compressed to smaller size
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bool is_compressible_file(const char *filename);
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char *gzencode(const char *data, int &len, int level, int encoding_mode);
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char *gzdecode(const char *data, int &len);
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///////////////////////////////////////////////////////////////////////////////
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class StreamCompressor {
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public:
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StreamCompressor(int level, int encoding_mode, bool header);
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~StreamCompressor();
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/**
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* Compress one chunk a time.
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*/
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char *compress(const char *data, int &len, bool trailer);
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private:
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int m_level;
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int m_encoding;
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bool m_header;
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z_stream m_stream;
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uLong m_crc;
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bool m_ended;
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};
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif // incl_HPHP_COMPRESSION_H_
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