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cryptopp-doc-5.6.1-0.1.svn479.fc13.i686.rpm

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<h1>mqueue.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_MQUEUE_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_MQUEUE_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include &quot;queue.h&quot;</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include &quot;filters.h&quot;</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;deque&gt;</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">//! Message Queue</span>
<a name="l00011"></a><a class="code" href="class_message_queue.html">00011</a> <span class="comment"></span>class CRYPTOPP_DLL <a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a> : public <a class="code" href="class_auto_signaling.html" title="_">AutoSignaling</a>&lt;<a class="code" href="class_buffered_transformation.html" title="interface for buffered transformations">BufferedTransformation</a>&gt;
<a name="l00012"></a>00012 {
<a name="l00013"></a>00013 <span class="keyword">public</span>:
<a name="l00014"></a>00014         <a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nodeSize=256);
<a name="l00015"></a>00015 
<a name="l00016"></a>00016         <span class="keywordtype">void</span> IsolatedInitialize(<span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &amp;parameters)
<a name="l00017"></a>00017                 {m_queue.IsolatedInitialize(parameters); m_lengths.assign(1, 0U); m_messageCounts.assign(1, 0U);}
<a name="l00018"></a><a class="code" href="class_message_queue.html#a3ca42e60e7de1cfada145609cb3eb5e9">00018</a>         <span class="keywordtype">size_t</span> Put2(<span class="keyword">const</span> byte *begin, <span class="keywordtype">size_t</span> length, <span class="keywordtype">int</span> messageEnd, <span class="keywordtype">bool</span> blocking)
<a name="l00019"></a>00019         {
<a name="l00020"></a>00020                 m_queue.Put(begin, length);
<a name="l00021"></a>00021                 m_lengths.back() += length;
<a name="l00022"></a>00022                 <span class="keywordflow">if</span> (messageEnd)
<a name="l00023"></a>00023                 {
<a name="l00024"></a>00024                         m_lengths.push_back(0);
<a name="l00025"></a>00025                         m_messageCounts.back()++;
<a name="l00026"></a>00026                 }
<a name="l00027"></a>00027                 <span class="keywordflow">return</span> 0;
<a name="l00028"></a>00028         }
<a name="l00029"></a>00029         <span class="keywordtype">bool</span> IsolatedFlush(<span class="keywordtype">bool</span> hardFlush, <span class="keywordtype">bool</span> blocking) {<span class="keywordflow">return</span> <span class="keyword">false</span>;}
<a name="l00030"></a>00030         <span class="keywordtype">bool</span> IsolatedMessageSeriesEnd(<span class="keywordtype">bool</span> blocking)
<a name="l00031"></a>00031                 {m_messageCounts.push_back(0); <span class="keywordflow">return</span> <span class="keyword">false</span>;}
<a name="l00032"></a>00032 
<a name="l00033"></a><a class="code" href="class_message_queue.html#a636d1842ab46a50cdb8517aec0df6c5d">00033</a>         lword MaxRetrievable()<span class="keyword"> const</span>
<a name="l00034"></a>00034 <span class="keyword">                </span>{<span class="keywordflow">return</span> m_lengths.front();}
<a name="l00035"></a><a class="code" href="class_message_queue.html#a8d1efa74c89f571b3bc9f00a947fbaa9">00035</a>         <span class="keywordtype">bool</span> AnyRetrievable()<span class="keyword"> const</span>
<a name="l00036"></a>00036 <span class="keyword">                </span>{<span class="keywordflow">return</span> m_lengths.front() &gt; 0;}
<a name="l00037"></a>00037 
<a name="l00038"></a>00038         <span class="keywordtype">size_t</span> TransferTo2(BufferedTransformation &amp;target, lword &amp;transferBytes, <span class="keyword">const</span> std::string &amp;channel=DEFAULT_CHANNEL, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>);
<a name="l00039"></a>00039         <span class="keywordtype">size_t</span> CopyRangeTo2(BufferedTransformation &amp;target, lword &amp;begin, lword end=LWORD_MAX, <span class="keyword">const</span> std::string &amp;channel=DEFAULT_CHANNEL, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>) <span class="keyword">const</span>;
<a name="l00040"></a>00040 
<a name="l00041"></a>00041         lword TotalBytesRetrievable()<span class="keyword"> const</span>
<a name="l00042"></a>00042 <span class="keyword">                </span>{<span class="keywordflow">return</span> m_queue.MaxRetrievable();}
<a name="l00043"></a><a class="code" href="class_message_queue.html#a00b443a9dd55d2b8c6e38b544dee189b">00043</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NumberOfMessages()<span class="keyword"> const</span>
<a name="l00044"></a>00044 <span class="keyword">                </span>{<span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)m_lengths.size()-1;}
<a name="l00045"></a>00045         <span class="keywordtype">bool</span> GetNextMessage();
<a name="l00046"></a>00046 
<a name="l00047"></a>00047         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NumberOfMessagesInThisSeries()<span class="keyword"> const</span>
<a name="l00048"></a>00048 <span class="keyword">                </span>{<span class="keywordflow">return</span> m_messageCounts[0];}
<a name="l00049"></a>00049         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> NumberOfMessageSeries()<span class="keyword"> const</span>
<a name="l00050"></a>00050 <span class="keyword">                </span>{<span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>)m_messageCounts.size()-1;}
<a name="l00051"></a>00051 
<a name="l00052"></a>00052         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CopyMessagesTo(BufferedTransformation &amp;target, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> count=UINT_MAX, <span class="keyword">const</span> std::string &amp;channel=DEFAULT_CHANNEL) <span class="keyword">const</span>;
<a name="l00053"></a>00053 
<a name="l00054"></a>00054         <span class="keyword">const</span> byte * Spy(<span class="keywordtype">size_t</span> &amp;contiguousSize) <span class="keyword">const</span>;
<a name="l00055"></a>00055 
<a name="l00056"></a>00056         <span class="keywordtype">void</span> swap(<a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a> &amp;rhs);
<a name="l00057"></a>00057 
<a name="l00058"></a>00058 <span class="keyword">private</span>:
<a name="l00059"></a>00059         <a class="code" href="class_byte_queue.html" title="Byte Queue.">ByteQueue</a> m_queue;
<a name="l00060"></a>00060         std::deque&lt;lword&gt; m_lengths;
<a name="l00061"></a>00061         std::deque&lt;unsigned int&gt; m_messageCounts;
<a name="l00062"></a>00062 };
<a name="l00063"></a>00063 
<a name="l00064"></a>00064 <span class="comment"></span>
<a name="l00065"></a>00065 <span class="comment">//! A filter that checks messages on two channels for equality</span>
<a name="l00066"></a><a class="code" href="class_equality_comparison_filter.html">00066</a> <span class="comment"></span><span class="keyword">class </span>CRYPTOPP_DLL <a class="code" href="class_equality_comparison_filter.html" title="A filter that checks messages on two channels for equality.">EqualityComparisonFilter</a> : <span class="keyword">public</span> <a class="code" href="class_unflushable.html" title="_">Unflushable</a>&lt;Multichannel&lt;Filter&gt; &gt;
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keyword">public</span>:
<a name="l00069"></a><a class="code" href="struct_equality_comparison_filter_1_1_mismatch_detected.html">00069</a>         <span class="keyword">struct </span><a class="code" href="struct_equality_comparison_filter_1_1_mismatch_detected.html">MismatchDetected</a> : <span class="keyword">public</span> <a class="code" href="class_exception.html" title="base class for all exceptions thrown by Crypto++">Exception</a> {<a class="code" href="struct_equality_comparison_filter_1_1_mismatch_detected.html">MismatchDetected</a>() : <a class="code" href="class_exception.html" title="base class for all exceptions thrown by Crypto++">Exception</a>(DATA_INTEGRITY_CHECK_FAILED, <span class="stringliteral">&quot;EqualityComparisonFilter: did not receive the same data on two channels&quot;</span>) {}};
<a name="l00070"></a>00070 <span class="comment"></span>
<a name="l00071"></a>00071 <span class="comment">        /*! if throwIfNotEqual is false, this filter will output a &apos;\\0&apos; byte when it detects a mismatch, &apos;\\1&apos; otherwise */</span>
<a name="l00072"></a><a class="code" href="class_equality_comparison_filter.html#a488c095db121999ba40c936573701d10">00072</a>         <a class="code" href="class_equality_comparison_filter.html" title="A filter that checks messages on two channels for equality.">EqualityComparisonFilter</a>(BufferedTransformation *attachment=NULL, <span class="keywordtype">bool</span> throwIfNotEqual=<span class="keyword">true</span>, <span class="keyword">const</span> std::string &amp;firstChannel=<span class="stringliteral">&quot;0&quot;</span>, <span class="keyword">const</span> std::string &amp;secondChannel=<span class="stringliteral">&quot;1&quot;</span>)
<a name="l00073"></a>00073                 : m_throwIfNotEqual(throwIfNotEqual), m_mismatchDetected(false)
<a name="l00074"></a>00074                 , m_firstChannel(firstChannel), m_secondChannel(secondChannel)
<a name="l00075"></a>00075                 {Detach(attachment);}
<a name="l00076"></a>00076 
<a name="l00077"></a>00077         <span class="keywordtype">size_t</span> ChannelPut2(<span class="keyword">const</span> std::string &amp;channel, <span class="keyword">const</span> byte *begin, <span class="keywordtype">size_t</span> length, <span class="keywordtype">int</span> messageEnd, <span class="keywordtype">bool</span> blocking);
<a name="l00078"></a>00078         <span class="keywordtype">bool</span> ChannelMessageSeriesEnd(<span class="keyword">const</span> std::string &amp;channel, <span class="keywordtype">int</span> propagation=-1, <span class="keywordtype">bool</span> blocking=<span class="keyword">true</span>);
<a name="l00079"></a>00079 
<a name="l00080"></a>00080 <span class="keyword">private</span>:
<a name="l00081"></a>00081         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> MapChannel(<span class="keyword">const</span> std::string &amp;channel) <span class="keyword">const</span>;
<a name="l00082"></a>00082         <span class="keywordtype">bool</span> HandleMismatchDetected(<span class="keywordtype">bool</span> blocking);
<a name="l00083"></a>00083 
<a name="l00084"></a>00084         <span class="keywordtype">bool</span> m_throwIfNotEqual, m_mismatchDetected;
<a name="l00085"></a>00085         std::string m_firstChannel, m_secondChannel;
<a name="l00086"></a>00086         <a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a> m_q[2];
<a name="l00087"></a>00087 };
<a name="l00088"></a>00088 
<a name="l00089"></a>00089 NAMESPACE_END
<a name="l00090"></a>00090 
<a name="l00091"></a>00091 <span class="preprocessor">#ifndef __BORLANDC__</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span>NAMESPACE_BEGIN(std)
<a name="l00093"></a>00093 template&lt;&gt; inline <span class="keywordtype">void</span> swap(CryptoPP::<a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a> &amp;a, CryptoPP::<a class="code" href="class_message_queue.html" title="Message Queue.">MessageQueue</a> &amp;b)
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095         a.swap(b);
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097 NAMESPACE_END
<a name="l00098"></a>00098 <span class="preprocessor">#endif</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span>
<a name="l00100"></a>00100 <span class="preprocessor">#endif</span>
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