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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |