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<hr><h1>buf_client.cpp</h1><a href="buf__client_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="stdnet_8h.html">stdnet.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="hierarchical__timer_8h.html">nel/misc/hierarchical_timer.h</a>"</font>
00029
00030 <font class="preprocessor">#include "<a class="code" href="buf__client_8h.html">nel/net/buf_client.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="thread_8h.html">nel/misc/thread.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="dummy__tcp__sock_8h.html">nel/net/dummy_tcp_sock.h</a>"</font>
00033
00034 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00035 <font class="preprocessor"></font><font class="preprocessor">#include <winsock2.h></font>
00036 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00037 <font class="preprocessor"></font><font class="preprocessor">#include <netinet/in.h></font>
00038 <font class="preprocessor">#endif</font>
00039 <font class="preprocessor"></font>
00040 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00041 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00042
00043
00044 <font class="keyword">namespace </font>NLNET {
00045
00046
00047 <font class="comment">/***************************************************************************************************</font>
00048 <font class="comment"> * User main thread (initialization)</font>
00049 <font class="comment"> **************************************************************************************************/</font>
00050
00051 <font class="comment">/*</font>
00052 <font class="comment"> * Constructor</font>
00053 <font class="comment"> */</font>
<a name="l00054"></a><a class="code" href="classNLNET_1_1CBufClient.html#a0">00054</a> CBufClient::CBufClient( <font class="keywordtype">bool</font> nodelay, <font class="keywordtype">bool</font> replaymode ) :
00055 CBufNetBase(),
00056 _NoDelay( nodelay ),
00057 _PrevBytesDownloaded( 0 ),
00058 _PrevBytesUploaded( 0 ),
00059 _RecvTask( NULL ),
00060 _RecvThread( NULL )
00061 <font class="comment">/*_PrevBytesReceived( 0 ),</font>
00062 <font class="comment"> _PrevBytesSent( 0 )*/</font>
00063 {
00064 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::CBufClient"</font> ); <font class="comment">// don't define a global object</font>
00065
00066 <font class="keywordflow">if</font> ( replaymode )
00067 {
00068 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a> = <font class="keyword">new</font> CBufSock( <font class="keyword">new</font> CDummyTcpSock() );
00069 }
00070 <font class="keywordflow">else</font>
00071 {
00072 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a> = <font class="keyword">new</font> CBufSock();
00073 <a class="code" href="classNLNET_1_1CBufClient.html#o0">_RecvTask</a> = <font class="keyword">new</font> <a class="code" href="classNLNET_1_1CBufClient.html#l0">CClientReceiveTask</a>( <font class="keyword">this</font>, <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a> );
00074 }
00075 }
00076
00077
00078 <font class="comment">/*</font>
00079 <font class="comment"> * Connects to the specified host</font>
00080 <font class="comment"> * Precond: not connected</font>
00081 <font class="comment"> */</font>
<a name="l00082"></a><a class="code" href="classNLNET_1_1CBufClient.html#a2">00082</a> <font class="keywordtype">void</font> CBufClient::connect( <font class="keyword">const</font> CInetAddress& <a class="code" href="driver__opengl__extension__def_8h.html#a414">addr</a> )
00083 {
00084 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::connect"</font> );
00085 <a class="code" href="debug_8h.html#a6">nlassert</a>( ! <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->connected() );
00086 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->connect( <a class="code" href="driver__opengl__extension__def_8h.html#a414">addr</a>, <a class="code" href="classNLNET_1_1CBufClient.html#n1">_NoDelay</a>, <font class="keyword">true</font> );
00087 <a class="code" href="classNLNET_1_1CBufClient.html#n2">_PrevBytesDownloaded</a> = 0;
00088 <a class="code" href="classNLNET_1_1CBufClient.html#n3">_PrevBytesUploaded</a> = 0;
00089 <font class="comment">/*_PrevBytesReceived = 0;</font>
00090 <font class="comment"> _PrevBytesSent = 0;*/</font>
00091
00092 <font class="comment">// Allow reconnection</font>
00093 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a> != NULL )
00094 {
00095 <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a>;
00096 }
00097
00098 <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a> = IThread::create( <a class="code" href="classNLNET_1_1CBufClient.html#o0">_RecvTask</a> );
00099 <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a>-><a class="code" href="classNLMISC_1_1IThread.html#a1">start</a>();
00100 }
00101
00102
00103 <font class="comment">/***************************************************************************************************</font>
00104 <font class="comment"> * User main thread (running)</font>
00105 <font class="comment"> **************************************************************************************************/</font>
00106
00107
00108 <font class="comment">/*</font>
00109 <font class="comment"> * Sends a message to the remote host</font>
00110 <font class="comment"> */</font>
<a name="l00111"></a><a class="code" href="classNLNET_1_1CBufClient.html#a4">00111</a> <font class="keywordtype">void</font> CBufClient::send( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMemStream.html">NLMISC::CMemStream</a>& buffer )
00112 {
00113 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::send"</font> );
00114 <a class="code" href="debug_8h.html#a6">nlassert</a>( buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a10">length</a>() > 0 );
00115 <a class="code" href="debug_8h.html#a6">nlassert</a>( buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a10">length</a>() <= <a class="code" href="classNLNET_1_1CBufNetBase.html#a6">maxSentBlockSize</a>() );
00116
00117 <font class="comment">// slow down the layer H_AUTO (CBufServer_send);</font>
00118
00119 <font class="keywordflow">if</font> ( ! <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->pushBuffer( buffer ) )
00120 {
00121 <font class="comment">// Disconnection event if disconnected</font>
00122 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->advertiseDisconnection( <font class="keyword">this</font>, NULL );
00123 }
00124 }
00125
00126
00127 <font class="comment">/*</font>
00128 <font class="comment"> * Checks if there are some data to receive</font>
00129 <font class="comment"> */</font>
<a name="l00130"></a><a class="code" href="classNLNET_1_1CBufClient.html#a5">00130</a> <font class="keywordtype">bool</font> CBufClient::dataAvailable()
00131 {
00132 <font class="comment">// slow down the layer H_AUTO (CBufClient_dataAvailable);</font>
00133 {
00134 <font class="comment">/* If no data available, enter the 'while' loop and return false (1 volatile test)</font>
00135 <font class="comment"> * If there are user data available, enter the 'while' and return true immediately (1 volatile test + 1 short locking)</font>
00136 <font class="comment"> * If there is a disconnection event (rare), call the callback and loop</font>
00137 <font class="comment"> */</font>
00138 <font class="keywordflow">while</font> ( <a class="code" href="classNLNET_1_1CBufNetBase.html#b7">dataAvailableFlag</a>() )
00139 {
00140 <font class="comment">// Because _DataAvailable is true, the receive queue is not empty at this point</font>
00141 uint8 val;
00142 {
00143 <a class="code" href="namespaceNLNET.html#a5">CFifoAccessor</a> recvfifo( &<a class="code" href="classNLNET_1_1CBufNetBase.html#b1">receiveQueue</a>() );
00144 val = recvfifo.value().frontLast ();
00145 }
00146
00147 <font class="comment">// Test if it the next block is a system event</font>
00148 <font class="keywordflow">switch</font> ( val )
00149 {
00150
00151 <font class="comment">// Normal message available</font>
00152 <font class="keywordflow">case</font> CBufNetBase::User:
00153 <font class="keywordflow">return</font> <font class="keyword">true</font>; <font class="comment">// return immediatly, do not extract the message</font>
00154
00155 <font class="comment">// Process disconnection event</font>
00156 <font class="keywordflow">case</font> CBufNetBase::Disconnection:
00157
00158 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"Disconnection event"</font> );
00159 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->setConnectedState( <font class="keyword">false</font> );
00160
00161 <font class="comment">// Call callback if needed</font>
00162 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufNetBase.html#b2">disconnectionCallback</a>() != NULL )
00163 {
00164 <a class="code" href="classNLNET_1_1CBufNetBase.html#b2">disconnectionCallback</a>()( <a class="code" href="classNLNET_1_1CBufClient.html#a18">id</a>(), <a class="code" href="classNLNET_1_1CBufNetBase.html#b3">argOfDisconnectionCallback</a>() );
00165 }
00166
00167 <font class="comment">// Unlike the server version, we do not delete the CBufSock object here,</font>
00168 <font class="comment">// it will be done in the destructor of CBufClient</font>
00169 <font class="keywordflow">break</font>;
00170
00171 <font class="keywordflow">default</font>: <font class="comment">// should not occur</font>
00172 {
00173 <a class="code" href="namespaceNLNET.html#a5">CFifoAccessor</a> recvfifo( &<a class="code" href="classNLNET_1_1CBufNetBase.html#b1">receiveQueue</a>() );
00174 vector<uint8> buffer;
00175 recvfifo.value().front (buffer);
00176 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"LNETL1: Invalid block type: %hu (should be = %hu)"</font>, (uint16)(buffer[buffer.size()-1]), (uint16)val );
00177 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"LNETL1: Buffer (%d B): [%s]"</font>, buffer.size(), stringFromVector(buffer).c_str() );
00178 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"LNETL1: Receive queue:"</font> );
00179 recvfifo.value().display();
00180 <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"LNETL1: Invalid system event type in client receive queue"</font> );
00181 }
00182 }
00183 <font class="comment">// Extract system event</font>
00184 {
00185 <a class="code" href="namespaceNLNET.html#a5">CFifoAccessor</a> recvfifo( &<a class="code" href="classNLNET_1_1CBufNetBase.html#b1">receiveQueue</a>() );
00186 recvfifo.value().pop();
00187 <a class="code" href="classNLNET_1_1CBufNetBase.html#b6">setDataAvailableFlag</a>( ! recvfifo.value().empty() );
00188 }
00189
00190 }
00191 <font class="comment">// _DataAvailable is false here</font>
00192 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00193 }
00194 }
00195
00196
00197 <font class="comment">/* // OLD VERSION</font>
00198 <font class="comment">bool CBufClient::dataAvailable()</font>
00199 <font class="comment">{</font>
00200 <font class="comment"> // slow down the layer H_AUTO (CBufClient_dataAvailable);</font>
00201 <font class="comment"> {</font>
00202 <font class="comment"> CFifoAccessor recvfifo( &receiveQueue() );</font>
00203 <font class="comment"> do</font>
00204 <font class="comment"> {</font>
00205 <font class="comment"> // Check if the receive queue is empty</font>
00206 <font class="comment"> if ( recvfifo.value().empty() )</font>
00207 <font class="comment"> {</font>
00208 <font class="comment"> return false;</font>
00209 <font class="comment"> }</font>
00210 <font class="comment"> else</font>
00211 <font class="comment"> {</font>
00212 <font class="comment"> uint8 val = recvfifo.value().frontLast ();</font>
00213 <font class="comment"></font>
00214 <font class="comment"> // Test if it the next block is a system event</font>
00215 <font class="comment"> switch ( val )</font>
00216 <font class="comment"> {</font>
00217 <font class="comment"> </font>
00218 <font class="comment"> // Normal message available</font>
00219 <font class="comment"> case CBufNetBase::User:</font>
00220 <font class="comment"> return true; // return immediatly, do not extract the message</font>
00221 <font class="comment"></font>
00222 <font class="comment"> // Process disconnection event</font>
00223 <font class="comment"> case CBufNetBase::Disconnection:</font>
00224 <font class="comment"></font>
00225 <font class="comment"> nldebug( "Disconnection event" );</font>
00226 <font class="comment"> _BufSock->setConnectedState( false );</font>
00227 <font class="comment"></font>
00228 <font class="comment"> // Call callback if needed</font>
00229 <font class="comment"> if ( disconnectionCallback() != NULL )</font>
00230 <font class="comment"> {</font>
00231 <font class="comment"> disconnectionCallback()( id(), argOfDisconnectionCallback() );</font>
00232 <font class="comment"> }</font>
00233 <font class="comment"></font>
00234 <font class="comment"> // Unlike the server version, we do not delete the CBufSock object here,</font>
00235 <font class="comment"> // it will be done in the destructor of CBufClient</font>
00236 <font class="comment"> break;</font>
00237 <font class="comment"></font>
00238 <font class="comment"> default:</font>
00239 <font class="comment"> {</font>
00240 <font class="comment"> vector<uint8> buffer;</font>
00241 <font class="comment"> recvfifo.value().front (buffer);</font>
00242 <font class="comment"> nlinfo( "LNETL1: Invalid block type: %hu (should be = %hu)", (uint16)(buffer[buffer.size()-1]), (uint16)val );</font>
00243 <font class="comment"> nlinfo( "LNETL1: Buffer (%d B): [%s]", buffer.size(), stringFromVector(buffer).c_str() );</font>
00244 <font class="comment"> nlinfo( "LNETL1: Receive queue:" );</font>
00245 <font class="comment"> recvfifo.value().display();</font>
00246 <font class="comment"> nlerror( "LNETL1: Invalid system event type in client receive queue" );</font>
00247 <font class="comment"> }</font>
00248 <font class="comment"> }</font>
00249 <font class="comment"> // Extract system event</font>
00250 <font class="comment"> recvfifo.value().pop();</font>
00251 <font class="comment"> }</font>
00252 <font class="comment"> }</font>
00253 <font class="comment"> while ( true );</font>
00254 <font class="comment"> }</font>
00255 <font class="comment">}</font>
00256 <font class="comment">*/</font>
00257
00258 <font class="comment">/*</font>
00259 <font class="comment"> * Receives next block of data in the specified buffer (resizes the vector)</font>
00260 <font class="comment"> * Precond: dataAvailable() has returned true</font>
00261 <font class="comment"> */</font>
<a name="l00262"></a><a class="code" href="classNLNET_1_1CBufClient.html#a6">00262</a> <font class="keywordtype">void</font> CBufClient::receive( <a class="code" href="classNLMISC_1_1CMemStream.html">NLMISC::CMemStream</a>& buffer )
00263 {
00264 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::receive"</font> );
00265 <font class="comment">//nlassert( dataAvailable() );</font>
00266
00267 <font class="comment">// Extract buffer from the receive queue</font>
00268 {
00269 <a class="code" href="namespaceNLNET.html#a5">CFifoAccessor</a> recvfifo( &<a class="code" href="classNLNET_1_1CBufNetBase.html#b1">receiveQueue</a>() );
00270 <a class="code" href="debug_8h.html#a6">nlassert</a>( ! recvfifo.value().empty() );
00271 recvfifo.value().front( buffer );
00272 recvfifo.value().pop();
00273 <a class="code" href="classNLNET_1_1CBufNetBase.html#b6">setDataAvailableFlag</a>( ! recvfifo.value().empty() );
00274 }
00275
00276 <font class="comment">// Extract event type</font>
00277 <a class="code" href="debug_8h.html#a6">nlassert</a>( buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a11">buffer</a>()[buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a10">length</a>()-1] == CBufNetBase::User );
00278 <font class="comment">//commented for optimisation nldebug( "LNETL1: Client read buffer (%d+%d B)", buffer.length(), sizeof(TSockId)+1 );</font>
00279 buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a14">resize</a>( buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a10">length</a>()-1 );
00280 }
00281
00282
00283 <font class="comment">/*</font>
00284 <font class="comment"> * Update the network (call this method evenly)</font>
00285 <font class="comment"> */</font>
<a name="l00286"></a><a class="code" href="classNLNET_1_1CBufClient.html#a7">00286</a> <font class="keywordtype">void</font> CBufClient::update()
00287 {
00288 <font class="comment">//nlnettrace( "CBufClient::update" );</font>
00289
00290 <font class="comment">// Update sending</font>
00291 <font class="keywordtype">bool</font> sendingok = <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->update();
00292
00293 <font class="comment">// Disconnection event if disconnected</font>
00294 <font class="keywordflow">if</font> ( ! ( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->connected() && sendingok ) )
00295 {
00296 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->connected() )
00297 {
00298 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->disconnect();
00299 }
00300 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->advertiseDisconnection( <font class="keyword">this</font>, NULL );
00301 }
00302 }
00303
00304
00305 <font class="comment">/*</font>
00306 <font class="comment"> * Disconnect the remote host</font>
00307 <font class="comment"> */</font>
<a name="l00308"></a><a class="code" href="classNLNET_1_1CBufClient.html#a3">00308</a> <font class="keywordtype">void</font> CBufClient::disconnect( <font class="keywordtype">bool</font> quick )
00309 {
00310 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::disconnect"</font> );
00311
00312 <font class="comment">// Do not allow to disconnect a socket that is not connected</font>
00313 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->connectedState() );
00314
00315 <font class="comment">// When the NS tells us to remove this connection AND the connection has physically</font>
00316 <font class="comment">// disconnected but not yet logically (i.e. disconnection event not processed yet),</font>
00317 <font class="comment">// skip flushing and physical active disconnection</font>
00318 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->connected() )
00319 {
00320 <font class="comment">// Flush sending is asked for</font>
00321 <font class="keywordflow">if</font> ( ! quick )
00322 {
00323 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->flush();
00324 }
00325
00326 <font class="comment">// Disconnect and prevent from advertising the disconnection</font>
00327 <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->disconnect( <font class="keyword">false</font> );
00328 }
00329
00330 <font class="comment">// Empty the receive queue</font>
00331 {
00332 <a class="code" href="namespaceNLNET.html#a5">CFifoAccessor</a> recvfifo( &<a class="code" href="classNLNET_1_1CBufNetBase.html#b1">receiveQueue</a>() );
00333 recvfifo.value().clear();
00334 <a class="code" href="classNLNET_1_1CBufNetBase.html#b6">setDataAvailableFlag</a>( <font class="keyword">false</font> );
00335 }
00336 }
00337
00338
00339 <font class="comment">// Utility function for newBytes...()</font>
00340 <font class="keyword">inline</font> uint64 <a class="code" href="namespaceNLNET.html#a86">updateStatCounter</a>( uint64& counter, uint64 newvalue )
00341 {
00342 uint64 result = newvalue - counter;
00343 counter = newvalue;
00344 <font class="keywordflow">return</font> result;
00345 }
00346
00347
00348 <font class="comment">/*</font>
00349 <font class="comment"> * Returns the number of bytes downloaded since the previous call to this method</font>
00350 <font class="comment"> */</font>
<a name="l00351"></a><a class="code" href="classNLNET_1_1CBufClient.html#a16">00351</a> uint64 CBufClient::newBytesDownloaded()
00352 {
00353 <font class="keywordflow">return</font> <a class="code" href="namespaceNLNET.html#a86">updateStatCounter</a>( <a class="code" href="classNLNET_1_1CBufClient.html#n2">_PrevBytesDownloaded</a>, <a class="code" href="classNLNET_1_1CBufClient.html#a14">bytesDownloaded</a>() );
00354 }
00355
00356
00357 <font class="comment">/*</font>
00358 <font class="comment"> * Returns the number of bytes uploaded since the previous call to this method</font>
00359 <font class="comment"> */</font>
<a name="l00360"></a><a class="code" href="classNLNET_1_1CBufClient.html#a17">00360</a> uint64 CBufClient::newBytesUploaded()
00361 {
00362 <font class="keywordflow">return</font> <a class="code" href="namespaceNLNET.html#a86">updateStatCounter</a>( <a class="code" href="classNLNET_1_1CBufClient.html#n3">_PrevBytesUploaded</a>, <a class="code" href="classNLNET_1_1CBufClient.html#a15">bytesUploaded</a>() );
00363 }
00364
00365
00366 <font class="comment">/*</font>
00367 <font class="comment"> * Returns the number of bytes popped by receive() since the previous call to this method</font>
00368 <font class="comment"> */</font>
00369 <font class="comment">/*uint64 CBufClient::newBytesReceived()</font>
00370 <font class="comment">{</font>
00371 <font class="comment"> return updateStatCounter( _PrevBytesReceived, bytesReceived() );</font>
00372 <font class="comment">}*/</font>
00373
00374
00375 <font class="comment">/*</font>
00376 <font class="comment"> * Returns the number of bytes pushed by send() since the previous call to this method</font>
00377 <font class="comment"> */</font>
00378 <font class="comment">/*uint64 CBufClient::newBytesSent()</font>
00379 <font class="comment">{</font>
00380 <font class="comment"> return updateStatCounter( _PrevBytesSent, bytesSent() );</font>
00381 <font class="comment">}*/</font>
00382
00383
00384 <font class="comment">/*</font>
00385 <font class="comment"> * Destructor</font>
00386 <font class="comment"> */</font>
<a name="l00387"></a><a class="code" href="classNLNET_1_1CBufClient.html#a1">00387</a> CBufClient::~CBufClient()
00388 {
00389 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufClient::~CBufClient"</font> );
00390
00391 <font class="comment">// Disconnect if not done</font>
00392 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->Sock->connected() )
00393 {
00394 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>->connectedState() );
00395
00396 <a class="code" href="classNLNET_1_1CBufClient.html#a3">disconnect</a>( <font class="keyword">true</font> );
00397 }
00398
00399 <font class="comment">// Clean thread termination</font>
00400 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a> != NULL )
00401 {
00402 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL1: Waiting for the end of the receive thread..."</font> );
00403 <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a>-><a class="code" href="classNLMISC_1_1IThread.html#a3">wait</a>();
00404 }
00405
00406 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#o0">_RecvTask</a> != NULL )
00407 <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CBufClient.html#o0">_RecvTask</a>;
00408
00409 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a> != NULL )
00410 <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CBufClient.html#o1">_RecvThread</a>;
00411
00412 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a> != NULL )
00413 <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CBufClient.html#n0">_BufSock</a>;
00414
00415 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"Exiting CBufClient::~CBufClient"</font> );
00416 }
00417
00418
00419 <font class="comment">/***************************************************************************************************</font>
00420 <font class="comment"> * Receive thread </font>
00421 <font class="comment"> **************************************************************************************************/</font>
00422
00423
00424 <font class="comment">/*</font>
00425 <font class="comment"> * Code of receiving thread for clients</font>
00426 <font class="comment"> */</font>
<a name="l00427"></a><a class="code" href="classNLNET_1_1CClientReceiveTask.html#a1">00427</a> <font class="keywordtype">void</font> CClientReceiveTask::run()
00428 {
00429 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CClientReceiveTask::run"</font> );
00430
00431 <font class="keywordtype">bool</font> connected = <font class="keyword">true</font>;
00432 <font class="keywordflow">while</font> ( connected ) <font class="comment">// does not call _Sock->connected() to avoid mutex (not needed for client)</font>
00433 {
00434 <font class="keywordflow">try</font>
00435 {
00436 <font class="comment">// Receive message length (in blocking mode)</font>
00437 <a class="code" href="namespaceNLNET.html#a6">TBlockSize</a> blocklen;
00438 uint32 lenoflen = <font class="keyword">sizeof</font>(blocklen);
00439 <a class="code" href="classNLNET_1_1CClientReceiveTask.html#a2">sock</a>()->receive( (uint8*)&blocklen, lenoflen );
00440 uint32 len = ntohl( blocklen );
00441
00442 <font class="keywordflow">if</font> ( len != 0 )
00443 {
00444 <font class="comment">// Test size limit</font>
00445 <font class="keywordflow">if</font> ( len > <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o0">_Client</a>->maxExpectedBlockSize() )
00446 {
00447 <a class="code" href="debug_8h.html#a2">nlwarning</a>( <font class="stringliteral">"LNETL1: Socket %s received length exceeding max expected, in block header... Disconnecting"</font>, <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o1">_SockId</a>->asString().c_str() );
00448 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Received length exceeding max expected"</font>, <font class="keyword">false</font> );
00449 }
00450
00451 <font class="comment">// Receive message payload (in blocking mode)</font>
00452 CObjectVector<uint8> buffer;
00453 buffer.resize(len+1);
00454
00455 <a class="code" href="classNLNET_1_1CClientReceiveTask.html#a2">sock</a>()->receive( buffer.getPtr(), len );
00456
00457 <font class="comment">//commented out for optimisation: nldebug( "LNETL1: Client %s received buffer (%u bytes)", _SockId->asString().c_str(), buffer.size()/*, stringFromVector(buffer).c_str()*/ );</font>
00458 <font class="comment">// Add event type</font>
00459 buffer[len] = CBufNetBase::User;
00460
00461 <font class="comment">// Push message into receive queue</font>
00462 <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o0">_Client</a>->pushMessageIntoReceiveQueue( buffer.getPtr(), buffer.size() );
00463 }
00464 <font class="keywordflow">else</font>
00465 {
00466 <a class="code" href="debug_8h.html#a2">nlwarning</a>( <font class="stringliteral">"LNETL1: Socket %s received null length in block header"</font>, <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o1">_SockId</a>->asString().c_str() );
00467 }
00468 }
00469 <font class="keywordflow">catch</font> ( ESocketConnectionClosed& )
00470 {
00471 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL1: Client connection %s closed"</font>, <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o1">_SockId</a>->asString().c_str() );
00472 <font class="comment">// The socket went to _Connected=false when throwing the exception</font>
00473 connected = <font class="keyword">false</font>;
00474 }
00475 <font class="keywordflow">catch</font> ( ESocket& )
00476 {
00477 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL1: Client connection %s broken"</font>, <a class="code" href="classNLNET_1_1CClientReceiveTask.html#o1">_SockId</a>->asString().c_str() );
00478 <a class="code" href="classNLNET_1_1CClientReceiveTask.html#a2">sock</a>()->disconnect();
00479 connected = <font class="keyword">false</font>;
00480 }
00481 }
00482
00483 <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"Exiting CClientReceiveTask::run()"</font> );
00484 }
00485
00486
00487 } <font class="comment">// NLNET</font>
</pre></div>
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