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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: zlib.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>zlib.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_ZLIB_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_ZLIB_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "adler32.h"</span><a name="l00005"></a>00005 <span class="preprocessor">#include "zdeflate.h"</span><a name="l00006"></a>00006 <span class="preprocessor">#include "zinflate.h"</span><a name="l00007"></a>00007 <a name="l00008"></a>00008 NAMESPACE_BEGIN(CryptoPP)<a name="l00009"></a>00009 <a name="l00010"></a>00010 <span class="comment">/// ZLIB Compressor (RFC 1950)</span><a name="l00011"></a><a class="code" href="class_zlib_compressor.html">00011</a> <span class="comment"></span>class <a class="code" href="class_zlib_compressor.html" title="ZLIB Compressor (RFC 1950).">ZlibCompressor</a> : public <a class="code" href="class_deflator.html" title="DEFLATE (RFC 1951) compressor.">Deflator</a><a name="l00012"></a>00012 {<a name="l00013"></a>00013 <span class="keyword">public</span>:<a name="l00014"></a><a class="code" href="class_zlib_compressor.html#27c5473eaa596c3932f1594c71f3e272">00014</a> <a class="code" href="class_zlib_compressor.html" title="ZLIB Compressor (RFC 1950).">ZlibCompressor</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> *attachment=NULL, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> deflateLevel=DEFAULT_DEFLATE_LEVEL, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, <span class="keywordtype">bool</span> detectUncompressible=<span class="keyword">true</span>)<a name="l00015"></a>00015 : Deflator(attachment, deflateLevel, log2WindowSize, detectUncompressible) {}<a name="l00016"></a><a class="code" href="class_zlib_compressor.html#b2459f2735ca0cdc7ba73e75783e0db8">00016</a> <a class="code" href="class_zlib_compressor.html" title="ZLIB Compressor (RFC 1950).">ZlibCompressor</a>(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &parameters, <a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> *attachment=NULL)<a name="l00017"></a>00017 : Deflator(parameters, attachment) {}<a name="l00018"></a>00018 <a name="l00019"></a>00019 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetCompressionLevel() <span class="keyword">const</span>;<a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="keyword">protected</span>:<a name="l00022"></a>00022 <span class="keywordtype">void</span> WritePrestreamHeader();<a name="l00023"></a>00023 <span class="keywordtype">void</span> ProcessUncompressedData(<span class="keyword">const</span> byte *<span class="keywordtype">string</span>, <span class="keywordtype">size_t</span> length);<a name="l00024"></a>00024 <span class="keywordtype">void</span> WritePoststreamTail();<a name="l00025"></a>00025 <a name="l00026"></a><a class="code" href="class_zlib_compressor.html#9abfa9dafca53bd2e1368a591191dba2">00026</a> <a class="code" href="class_adler32.html" title="ADLER-32 checksum calculations.">Adler32</a> m_adler32;<a name="l00027"></a>00027 };<a name="l00028"></a>00028 <span class="comment"></span><a name="l00029"></a>00029 <span class="comment">/// ZLIB Decompressor (RFC 1950)</span><a name="l00030"></a><a class="code" href="class_zlib_decompressor.html">00030</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_zlib_decompressor.html" title="ZLIB Decompressor (RFC 1950).">ZlibDecompressor</a> : <span class="keyword">public</span> <a class="code" href="class_inflator.html" title="DEFLATE (RFC 1951) decompressor.">Inflator</a><a name="l00031"></a>00031 {<a name="l00032"></a>00032 <span class="keyword">public</span>:<a name="l00033"></a><a class="code" href="class_zlib_decompressor.html#1f0c3fa67d514a4aa1a5833f63cb186b">00033</a> <span class="keyword">typedef</span> <a class="code" href="class_inflator_1_1_err.html">Inflator::Err</a> <a class="code" href="class_inflator_1_1_err.html">Err</a>;<a name="l00034"></a><a class="code" href="class_zlib_decompressor_1_1_header_err.html#bef2b89fbc9d15b69d5ea4850f0d5032">00034</a> <span class="keyword">class </span><a class="code" href="class_zlib_decompressor_1_1_header_err.html">HeaderErr</a> : <span class="keyword">public</span> <a class="code" href="class_inflator_1_1_err.html">Err</a> {<span class="keyword">public</span>: <a class="code" href="class_zlib_decompressor_1_1_header_err.html#bef2b89fbc9d15b69d5ea4850f0d5032">HeaderErr</a>() : <a class="code" href="class_inflator_1_1_err.html#5b05977af50a38a468e65abb27be2cea">Err</a>(<a class="code" href="class_exception.html#8e53909d979479380e0274807c074c0a3a0352964781e7712b21dbb70ffbe646" title="received input data that doesn't conform to expected format">INVALID_DATA_FORMAT</a>, <span class="stringliteral">"ZlibDecompressor: header decoding error"</span>) {}};<a name="l00035"></a><a class="code" href="class_zlib_decompressor_1_1_adler32_err.html#cc148000d7d736f54a9cd8f0e2a8bce4">00035</a> <span class="keyword">class </span><a class="code" href="class_zlib_decompressor_1_1_adler32_err.html">Adler32Err</a> : <span class="keyword">public</span> <a class="code" href="class_inflator_1_1_err.html">Err</a> {<span class="keyword">public</span>: <a class="code" href="class_zlib_decompressor_1_1_adler32_err.html#cc148000d7d736f54a9cd8f0e2a8bce4">Adler32Err</a>() : <a class="code" href="class_inflator_1_1_err.html#5b05977af50a38a468e65abb27be2cea">Err</a>(<a class="code" href="class_exception.html#8e53909d979479380e0274807c074c0a77a639a803cf53052f9c76a0354247e6" title="data integerity check (such as CRC or MAC) failed">DATA_INTEGRITY_CHECK_FAILED</a>, <span class="stringliteral">"ZlibDecompressor: ADLER32 check error"</span>) {}};<a name="l00036"></a><a class="code" href="class_zlib_decompressor_1_1_unsupported_algorithm.html#235fe44ea2428d9f39ee230de21fd505">00036</a> <span class="keyword">class </span><a class="code" href="class_zlib_decompressor_1_1_unsupported_algorithm.html">UnsupportedAlgorithm</a> : <span class="keyword">public</span> <a class="code" href="class_inflator_1_1_err.html">Err</a> {<span class="keyword">public</span>: <a class="code" href="class_zlib_decompressor_1_1_unsupported_algorithm.html#235fe44ea2428d9f39ee230de21fd505">UnsupportedAlgorithm</a>() : <a class="code" href="class_inflator_1_1_err.html#5b05977af50a38a468e65abb27be2cea">Err</a>(<a class="code" href="class_exception.html#8e53909d979479380e0274807c074c0a3a0352964781e7712b21dbb70ffbe646" title="received input data that doesn't conform to expected format">INVALID_DATA_FORMAT</a>, <span class="stringliteral">"ZlibDecompressor: unsupported algorithm"</span>) {}};<a name="l00037"></a><a class="code" href="class_zlib_decompressor_1_1_unsupported_preset_dictionary.html#d7d0c90e9debcf2f70ec06fecd25caf8">00037</a> <span class="keyword">class </span><a class="code" href="class_zlib_decompressor_1_1_unsupported_preset_dictionary.html">UnsupportedPresetDictionary</a> : <span class="keyword">public</span> <a class="code" href="class_inflator_1_1_err.html">Err</a> {<span class="keyword">public</span>: <a class="code" href="class_zlib_decompressor_1_1_unsupported_preset_dictionary.html#d7d0c90e9debcf2f70ec06fecd25caf8">UnsupportedPresetDictionary</a>() : <a class="code" href="class_inflator_1_1_err.html#5b05977af50a38a468e65abb27be2cea">Err</a>(<a class="code" href="class_exception.html#8e53909d979479380e0274807c074c0a3a0352964781e7712b21dbb70ffbe646" title="received input data that doesn't conform to expected format">INVALID_DATA_FORMAT</a>, <span class="stringliteral">"ZlibDecompressor: unsupported preset dictionary"</span>) {}};<a name="l00038"></a>00038 <span class="comment"></span><a name="l00039"></a>00039 <span class="comment"> /*! \param repeat decompress multiple compressed streams in series</span><a name="l00040"></a>00040 <span class="comment"> \param autoSignalPropagation 0 to turn off MessageEnd signal</span><a name="l00041"></a>00041 <span class="comment"> */</span><a name="l00042"></a>00042 <a class="code" href="class_zlib_decompressor.html#2811c881df0f9cd29a8a047c12c3a744">ZlibDecompressor</a>(<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a> *attachment = NULL, <span class="keywordtype">bool</span> repeat = <span class="keyword">false</span>, <span class="keywordtype">int</span> autoSignalPropagation = -1);<a name="l00043"></a><a class="code" href="class_zlib_decompressor.html#30d3cd61c8b34b6983e203f14ed9f686">00043</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_zlib_decompressor.html#30d3cd61c8b34b6983e203f14ed9f686">GetLog2WindowSize</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_log2WindowSize;}<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="keyword">private</span>:<a name="l00046"></a>00046 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MaxPrestreamHeaderSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 2;}<a name="l00047"></a>00047 <span class="keywordtype">void</span> ProcessPrestreamHeader();<a name="l00048"></a>00048 <span class="keywordtype">void</span> ProcessDecompressedData(<span class="keyword">const</span> byte *<span class="keywordtype">string</span>, <span class="keywordtype">size_t</span> length);<a name="l00049"></a>00049 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MaxPoststreamTailSize()<span class="keyword"> const </span>{<span class="keywordflow">return</span> 4;}<a name="l00050"></a>00050 <span class="keywordtype">void</span> ProcessPoststreamTail();<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_log2WindowSize;<a name="l00053"></a>00053 <a class="code" href="class_adler32.html" title="ADLER-32 checksum calculations.">Adler32</a> m_adler32;<a name="l00054"></a>00054 };<a name="l00055"></a>00055 <a name="l00056"></a>00056 NAMESPACE_END<a name="l00057"></a>00057 <a name="l00058"></a>00058 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:26 2007 for Crypto++ by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address></body></html>⌨️ 快捷键说明
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