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<h1>TcpAsioClientTransport.hpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">//*****************************************************************************</span>
<a name="l00003"></a>00003 <span class="comment">// RCF - Remote Call Framework</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (c) 2005. All rights reserved.</span>
<a name="l00005"></a>00005 <span class="comment">// Developed by Jarl Lindrud.</span>
<a name="l00006"></a>00006 <span class="comment">// Contact: jlindrud@hotmail.com .</span>
<a name="l00007"></a>00007 <span class="comment">//*****************************************************************************</span>
<a name="l00008"></a>00008
<a name="l00009"></a>00009 <span class="preprocessor">#ifndef INCLUDE_RCF_TCPASIOCLIENT_TRANSPORT_HPP</span>
<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDE_RCF_TCPASIOCLIENT_TRANSPORT_HPP</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <boost/shared_ptr.hpp></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <boost/asio.hpp></span>
<a name="l00014"></a>00014
<a name="l00015"></a>00015 <span class="preprocessor">#include <RCF/ClientTransport.hpp></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <RCF/ThreadLibrary.hpp></span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="keyword">namespace </span>RCF {
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keyword">namespace </span>asio = boost::asio;
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="keyword">class </span>TcpAsioSynchronizedSocket;
<a name="l00023"></a>00023 <span class="keyword">class </span>TcpAsioServerTransport;
<a name="l00024"></a>00024 <span class="keyword">typedef</span> asio::io_service Demuxer;
<a name="l00025"></a>00025 <span class="keyword">typedef</span> boost::shared_ptr<Demuxer> DemuxerPtr;
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="keyword">class </span>TcpAsioClientTransport : <span class="keyword">public</span> I_ClientTransport
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029 <span class="keyword">public</span>:
<a name="l00030"></a>00030 TcpAsioClientTransport(<span class="keyword">const</span> std::string &ip, <span class="keywordtype">int</span> port, DemuxerPtr demuxerPtr = getSharedDemuxerPtr()<span class="comment">/* DemuxerPtr()*/</span>);
<a name="l00031"></a>00031 TcpAsioClientTransport(<span class="keyword">const</span> TcpAsioClientTransport &rhs);
<a name="l00032"></a>00032 ~TcpAsioClientTransport();
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">// I_ClientTransport implementation</span>
<a name="l00035"></a>00035 ClientTransportAutoPtr clone() <span class="keyword">const</span>;
<a name="l00036"></a>00036 EndpointPtr getEndpointPtr() <span class="keyword">const</span>;
<a name="l00037"></a>00037 <span class="keywordtype">int</span> send(<span class="keyword">const</span> std::string &data, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> timeoutMs);
<a name="l00038"></a>00038 <span class="keywordtype">int</span> receive(std::string &data, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> timeoutMs);
<a name="l00039"></a>00039 <span class="keywordtype">bool</span> isConnected();
<a name="l00040"></a>00040 <span class="keywordtype">void</span> close();
<a name="l00041"></a>00041 <span class="keywordtype">void</span> setTransportFilters(<span class="keyword">const</span> std::vector<FilterPtr> &filters);
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">private</span>:
<a name="l00044"></a>00044 <span class="keyword">friend</span> <span class="keyword">class </span>TcpAsioServerTransport;
<a name="l00045"></a>00045 <span class="keyword">typedef</span> TcpAsioSynchronizedSocket SynchronizedSocket;
<a name="l00046"></a>00046 <span class="keyword">typedef</span> boost::shared_ptr<SynchronizedSocket> SynchronizedSocketPtr;
<a name="l00047"></a>00047 TcpAsioClientTransport(SynchronizedSocketPtr synchronizedSocketPtr, DemuxerPtr demuxerPtr = getSharedDemuxerPtr()<span class="comment">/* DemuxerPtr()*/</span>);
<a name="l00048"></a>00048 SynchronizedSocketPtr releaseSynchronizedSocketPtr();
<a name="l00049"></a>00049 SynchronizedSocketPtr getSynchronizedSocketPtr();
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">private</span>:
<a name="l00052"></a>00052 <span class="keywordtype">int</span> connect();
<a name="l00053"></a>00053 <span class="keywordtype">void</span> readSingle(<span class="keywordtype">char</span> *buffer, std::size_t bufferLen);
<a name="l00054"></a>00054 <span class="keywordtype">void</span> writeSingle(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, std::size_t bufferLen);
<a name="l00055"></a>00055 std::size_t read(<span class="keywordtype">char</span> *buffer, std::size_t bufferLen);
<a name="l00056"></a>00056 std::size_t write(<span class="keyword">const</span> <span class="keywordtype">char</span> *buffer, std::size_t bufferLen);
<a name="l00057"></a>00057 <span class="keywordtype">int</span> errFromAsioErr();
<a name="l00058"></a>00058 <span class="keywordtype">void</span> onFilteredReadWriteCompletion(std::size_t bytesTransferred, <span class="keywordtype">int</span> error);
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="comment">// shared instance functions</span>
<a name="l00061"></a>00061 <span class="keyword">private</span>:
<a name="l00062"></a>00062 <span class="keyword">class </span>State;
<a name="l00063"></a>00063 <span class="keyword">typedef</span> boost::shared_ptr<State> StatePtr;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">static</span> ReadWriteMutexPtr * spReadWriteMutexPtr;
<a name="l00066"></a>00066 <span class="keyword">static</span> DemuxerPtr * spDemuxerPtr;
<a name="l00067"></a>00067 <span class="keyword">public</span>:
<a name="l00068"></a>00068 <span class="keyword">static</span> <span class="keywordtype">void</span> init();
<a name="l00069"></a>00069 <span class="keyword">static</span> <span class="keywordtype">void</span> deinit();
<a name="l00070"></a>00070 <span class="keyword">static</span> ReadWriteMutexPtr getSharedReadWriteMutexPtr();
<a name="l00071"></a>00071 <span class="keyword">static</span> DemuxerPtr getSharedDemuxerPtr();
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// data</span>
<a name="l00074"></a>00074 <span class="keyword">private</span>:
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">class </span>State
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="keyword">public</span>:
<a name="l00079"></a>00079 State(Demuxer &demuxer) : mTimer(demuxer), mBytesTransferred(), mTimeoutFlag() {}
<a name="l00080"></a>00080 asio::deadline_timer mTimer;
<a name="l00081"></a>00081 std::size_t mBytesTransferred;
<a name="l00082"></a>00082 <span class="keyword">volatile</span> <span class="keywordtype">bool</span> mTimeoutFlag;
<a name="l00083"></a>00083 asio::error mError;
<a name="l00084"></a>00084 Mutex mEventMutex;
<a name="l00085"></a>00085 Condition mEvent;
<a name="l00086"></a>00086 };
<a name="l00087"></a>00087
<a name="l00088"></a>00088 DemuxerPtr mDemuxerPtr;
<a name="l00089"></a>00089 SynchronizedSocketPtr mSynchronizedSocketPtr;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">// following are at times generated lazily, hence the mutable</span>
<a name="l00092"></a>00092 <span class="keyword">mutable</span> std::string mIp;
<a name="l00093"></a>00093 <span class="keyword">mutable</span> <span class="keywordtype">int</span> mPort;
<a name="l00094"></a>00094 <span class="keyword">mutable</span> asio::ip::tcp::endpoint mEndpoint;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 std::vector<FilterPtr> mTransportFilters;
<a name="l00097"></a>00097 std::vector<char> mReadBuffer;
<a name="l00098"></a>00098 std::vector<char> mWriteBuffer;
<a name="l00099"></a>00099 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> mEndTimeMs;
<a name="l00100"></a>00100
<a name="l00101"></a>00101 StatePtr mStatePtr;
<a name="l00102"></a>00102
<a name="l00103"></a>00103 asio::deadline_timer & mTimer;
<a name="l00104"></a>00104 std::size_t & mBytesTransferred;
<a name="l00105"></a>00105 <span class="keyword">volatile</span> <span class="keywordtype">bool</span> & mTimeoutFlag;
<a name="l00106"></a>00106 asio::error & mError;
<a name="l00107"></a>00107 Mutex & mEventMutex;
<a name="l00108"></a>00108 Condition & mEvent;
<a name="l00109"></a>00109 };
<a name="l00110"></a>00110
<a name="l00111"></a>00111 } <span class="comment">// namespace RCF</span>
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="preprocessor">#endif // ! INCLUDE_RCF_TCPASIOCLIENT_TRANSPORT_HPP</span>
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Software developer, from Sweden and now living in Canberra, Australia, working on distributed C++ applications. When he is not programming, Jarl enjoys skiing and playing table tennis. He derives immense satisfaction from referring to himself in third person.
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