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<hr><h1>buf_sock.cpp</h1><a href="buf__sock_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__sock_8h.html">nel/net/buf_sock.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="buf__server_8h.html">nel/net/buf_server.h</a>"</font>
00032 
00033 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00034 <font class="preprocessor"></font><font class="preprocessor">#include &lt;winsock2.h&gt;</font>
00035 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00036 <font class="preprocessor"></font><font class="preprocessor">#include &lt;netinet/in.h&gt;</font>
00037 <font class="preprocessor">#endif</font>
00038 <font class="preprocessor"></font>
00039 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00040 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00041 
00042 
00043 <font class="keyword">namespace </font>NLNET {
00044 
00045 
00046 NLMISC::CMutex <a class="code" href="namespaceNLNET.html#a87">nettrace_mutex</a>(<font class="stringliteral">"nettrace_mutex"</font>);
00047 
00048 
00049 <font class="comment">/*</font>
00050 <font class="comment"> * Constructor</font>
00051 <font class="comment"> */</font>
<a name="l00052"></a><a class="code" href="classNLNET_1_1CBufSock.html#b0">00052</a> CBufSock::CBufSock( CTcpSock *sock ) :
00053         SendNextValue(0),
00054         ReceiveNextValue(0),
00055         Sock( sock ),
00056         _KnowConnected( false ),
00057         _LastFlushTime( 0 ),
00058         _TriggerTime( 20 ),
00059         _TriggerSize( -1 ),
00060         _RTSBIndex( 0 ),
00061         _AppId( 0 ),
00062         _ConnectedState( false )
00063 {
00064         <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufSock::CBufSock"</font> ); <font class="comment">// don't define a global object</font>
00065 
00066         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a> == NULL )
00067           {
00068                 <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a> = <font class="keyword">new</font> CTcpSock();
00069           }
00070 
00071 <font class="preprocessor">#ifdef NL_DEBUG</font>
00072 <font class="preprocessor"></font>        _FlushTrigger = FTManual;
00073 <font class="preprocessor">#endif</font>
00074 <font class="preprocessor"></font>        <a class="code" href="classNLNET_1_1CBufSock.html#o0">_LastFlushTime</a> = CTime::getLocalTime();
00075 }
00076 
00077 
00078 <font class="comment">/*</font>
00079 <font class="comment"> * Destructor</font>
00080 <font class="comment"> */</font>
<a name="l00081"></a><a class="code" href="classNLNET_1_1CBufSock.html#a0">00081</a> CBufSock::~CBufSock()
00082 {
00083         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00084 
00085         <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CBufSock::~CBufSock"</font> );
00086         
00087         <font class="keyword">delete</font> <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>; <font class="comment">// the socket disconnects automatically if needed</font>
00088         
00089         <font class="comment">// destroy the structur to be sure that other people will not access to this anymore</font>
00090         <a class="code" href="classNLNET_1_1CBufSock.html#m0">AuthorizedCallback</a> = <font class="stringliteral">""</font>;
00091         <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a> = NULL;
00092         <a class="code" href="classNLNET_1_1CBufSock.html#n2">_KnowConnected</a> = <font class="keyword">false</font>;
00093         <a class="code" href="classNLNET_1_1CBufSock.html#o0">_LastFlushTime</a> = 0;
00094         <a class="code" href="classNLNET_1_1CBufSock.html#o1">_TriggerTime</a> = 0;
00095         <a class="code" href="classNLNET_1_1CBufSock.html#o2">_TriggerSize</a> = 0;
00096         <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z301_0">clear</a> ();
00097         <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a> = 0;
00098         <a class="code" href="classNLNET_1_1CBufSock.html#o5">_AppId</a> = 0;
00099         <a class="code" href="classNLNET_1_1CBufSock.html#o6">_ConnectedState</a> = <font class="keyword">false</font>;
00100 }
00101 
00102 
00103 <font class="comment">/*</font>
00104 <font class="comment"> * Returns a readable string from a vector of bytes, beginning from pos, limited to 'len' characters. '\0' are replaced by ' '</font>
00105 <font class="comment"> */</font>
00106 string <a class="code" href="namespaceNLNET.html#a88">stringFromVectorPart</a>( <font class="keyword">const</font> vector&lt;uint8&gt;&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, uint32 pos, uint32 len )
00107 {
00108         <a class="code" href="debug_8h.html#a8">nlassertex</a>( pos+len &lt;= <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.size(), (<font class="stringliteral">"pos=%u len=%u size=%u"</font>, pos, len, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.size()) );
00109 
00110         string <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>;
00111         <font class="keywordflow">if</font> ( (! <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.empty()) &amp;&amp; (len!=0) )
00112         {
00113                 <font class="comment">// Copy contents</font>
00114                 <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.resize( len );
00115                 memcpy( &amp;*<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.begin(), &amp;*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.begin()+pos, len );
00116 
00117                 <font class="comment">// Replace '\0' characters</font>
00118                 string::iterator is;
00119                 <font class="keywordflow">for</font> ( is=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.begin(); is!=<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.end(); ++is )
00120                 {
00121                         <font class="keywordflow">if</font> ( ! isprint((uint8)(*is)) || (*is) == <font class="charliteral">'%'</font> )
00122                         {
00123                                 (*is) = <font class="charliteral">'?'</font>;
00124                         }
00125                 }
00126         }
00127 
00128         <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>;
00129 }
00130 
00131 
00132 <font class="comment">/*</font>
00133 <font class="comment"> * Force to send all data pending in the send queue</font>
00134 <font class="comment"> * Note: this method is used by clients (blocking sockets) and servers (non-blocking sockets)</font>
00135 <font class="comment"> * so it works in both cases.</font>
00136 <font class="comment"> * Precond: the send queue should not contain an empty block</font>
00137 <font class="comment"> */</font>
<a name="l00138"></a><a class="code" href="classNLNET_1_1CBufSock.html#z347_3">00138</a> <font class="keywordtype">bool</font> CBufSock::flush()
00139 {
00140         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00141         <font class="comment">//nlnettrace( "CBufSock::flush" );</font>
00142 
00143         <font class="comment">// Copy data from the send queue to _ReadyToSendBuffer</font>
00144         <a class="code" href="namespaceNLNET.html#a6">TBlockSize</a> netlen;
00145 <font class="comment">//      vector&lt;uint8&gt; tmpbuffer;</font>
00146 
00147         <font class="comment">// Process each element in the send queue</font>
00148         <font class="keywordflow">while</font> ( ! <a class="code" href="classNLNET_1_1CBufSock.html#n0">SendFifo</a>.<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a>() )
00149         {
00150                 uint8 *tmpbuffer;
00151                 uint32 size;
00152                 <a class="code" href="classNLNET_1_1CBufSock.html#n0">SendFifo</a>.<a class="code" href="classNLMISC_1_1CBufFIFO.html#a6">front</a>( tmpbuffer, size );
00153 
00154                 <font class="comment">// Compute the size and add it into the beginning of the buffer</font>
00155                 netlen = htonl( (<a class="code" href="namespaceNLNET.html#a6">TBlockSize</a>)size );
00156                 uint32 oldBufferSize = <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>();
00157                 <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z301_1">resize</a> (oldBufferSize+<font class="keyword">sizeof</font>(<a class="code" href="namespaceNLNET.html#a6">TBlockSize</a>)+size);
00158                 *(<a class="code" href="namespaceNLNET.html#a6">TBlockSize</a>*)&amp;(<a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>[oldBufferSize])=netlen;
00159 
00160                 <font class="comment">// Append the temporary buffer to the global buffer</font>
00161                 CFastMem::memcpy (&amp;<a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>[oldBufferSize+<font class="keyword">sizeof</font>(<a class="code" href="namespaceNLNET.html#a6">TBlockSize</a>)], tmpbuffer, size);
00162                 <a class="code" href="classNLNET_1_1CBufSock.html#n0">SendFifo</a>.<a class="code" href="classNLMISC_1_1CBufFIFO.html#a10">pop</a>();
00163         }
00164 
00165         <font class="comment">// Actual sending of _ReadyToSendBuffer</font>
00166         <font class="comment">//if ( ! _ReadyToSendBuffer.empty() )</font>
00167         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() != 0 )
00168         {               
00169                 <font class="comment">// Send</font>
00170                 CSock::TSockResult <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a>;
00171                 <a class="code" href="namespaceNLNET.html#a6">TBlockSize</a> len = <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() - <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a>;
00172 
00173                 <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;send( <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_2">getPtr</a>()+<a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a>, len, <font class="keyword">false</font> );
00174 
00175                 <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> == CSock::Ok )
00176                 {
00177 <font class="comment">/*                      // Debug display</font>
00178 <font class="comment">                        switch ( _FlushTrigger )</font>
00179 <font class="comment">                        {</font>
00180 <font class="comment">                        case FTTime : nldebug( "LNETL1: Time triggered flush for %s:", asString().c_str() ); break;</font>
00181 <font class="comment">                        case FTSize : nldebug( "LNETL1: Size triggered flush for %s:", asString().c_str() ); break;</font>
00182 <font class="comment">                        default:          nldebug( "LNETL1: Manual flush for %s:", asString().c_str() );</font>
00183 <font class="comment">                        }</font>
00184 <font class="comment">                        _FlushTrigger = FTManual;</font>
00185 <font class="comment">                        nldebug( "LNETL1: %s sent effectively a buffer (%d on %d B)", asString().c_str(), len, _ReadyToSendBuffer.size() );</font>
00186 <font class="comment">*/</font>                      
00187                         
00188                         <font class="comment">// TODO OPTIM remove the nldebug for speed</font>
00189                         <font class="comment">//commented for optimisation nldebug( "LNETL1: %s sent effectively %u/%u bytes (pos %u wantedsend %u)", asString().c_str(), len, _ReadyToSendBuffer.size(), _RTSBIndex, realLen/*, stringFromVectorPart(_ReadyToSendBuffer,_RTSBIndex,len).c_str()*/ );</font>
00190 
00191                         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a>+len == <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() ) <font class="comment">// for non-blocking mode (server)</font>
00192                         {
00193                                 <font class="comment">// If sending is ok, clear the global buffer</font>
00194                                 <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z301_0">clear</a>();
00195                                 <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a> = 0;
00196                         }
00197                         <font class="keywordflow">else</font>
00198                         {
00199                                 <font class="comment">// Or clear only the data that was actually sent</font>
00200                                 <a class="code" href="debug_8h.html#a8">nlassertex</a>( <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a>+len &lt; <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>(), (<font class="stringliteral">"index=%u len=%u size=%u"</font>, <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a>, len, <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>()) );
00201                                 <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a> += len;
00202                                 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() &gt; 20480 ) <font class="comment">// if big, clear data already sent</font>
00203                                 {
00204                                         uint nbcpy = <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() - len;
00205                                         <font class="keywordflow">for</font> (uint i = 0; i &lt; nbcpy; i++)
00206                                         {
00207                                                 <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>[i] = <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>[i+len];
00208                                         }
00209                                         <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z301_1">resize</a>(nbcpy);
00210                                         <font class="comment">//_ReadyToSendBuffer.erase( _ReadyToSendBuffer.begin(), _ReadyToSendBuffer.begin()+len );</font>
00211                                         <a class="code" href="classNLNET_1_1CBufSock.html#o4">_RTSBIndex</a> = 0;
00212                                 }
00213                         }
00214                 }
00215                 <font class="keywordflow">else</font>
00216                 {
00217 <font class="preprocessor">#ifdef NL_DEBUG</font>
00218 <font class="preprocessor"></font>                        <font class="comment">// can happen in a normal behavior if, for example, the other side is not connect anymore</font>
00219                         <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL1: %s failed to send effectively a buffer of %d bytes"</font>, <a class="code" href="classNLNET_1_1CBufSock.html#a3">asString</a>().c_str(), <a class="code" href="classNLNET_1_1CBufSock.html#o3">_ReadyToSendBuffer</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z302_0">size</a>() );
00220 <font class="preprocessor">#endif</font>
00221 <font class="preprocessor"></font>                        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00222                 }
00223         }
00224 
00225         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00226 }
00227 
00228 
00229 <font class="comment">/* Sets the time flush trigger (in millisecond). When this time is elapsed,</font>
00230 <font class="comment"> * all data in the send queue is automatically sent (-1 to disable this trigger)</font>
00231 <font class="comment"> */</font>
<a name="l00232"></a><a class="code" href="classNLNET_1_1CBufSock.html#z347_1">00232</a> <font class="keywordtype">void</font> CBufSock::setTimeFlushTrigger( sint32 ms )
00233 {
00234         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00235         <a class="code" href="classNLNET_1_1CBufSock.html#o1">_TriggerTime</a> = ms;
00236         <a class="code" href="classNLNET_1_1CBufSock.html#o0">_LastFlushTime</a> = CTime::getLocalTime();
00237 }
00238 
00239 
00240 <font class="comment">/*</font>
00241 <font class="comment"> * Update the network sending (call this method evenly). Returns false if an error occured.</font>
00242 <font class="comment"> */</font>
<a name="l00243"></a><a class="code" href="classNLNET_1_1CBufSock.html#z347_0">00243</a> <font class="keywordtype">bool</font> CBufSock::update()
00244 {
00245         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00246 <font class="comment">//      nlnettrace( "CBufSock::update-BEGIN" );</font>
00247         <font class="comment">// Time trigger</font>
00248 
00249         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#o1">_TriggerTime</a> != -1 )
00250         {
00251                 <a class="code" href="namespaceNLMISC.html#a183">TTime</a> now = CTime::getLocalTime();
00252                 <font class="keywordflow">if</font> ( (sint32)(now-<a class="code" href="classNLNET_1_1CBufSock.html#o0">_LastFlushTime</a>) &gt;= <a class="code" href="classNLNET_1_1CBufSock.html#o1">_TriggerTime</a> )
00253                 {
00254 <font class="preprocessor">#ifdef NL_DEBUG</font>
00255 <font class="preprocessor"></font>                        _FlushTrigger = FTTime;
00256 <font class="preprocessor">#endif</font>
00257 <font class="preprocessor"></font>                        <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#z347_3">flush</a>() )
00258                         {
00259                                 <a class="code" href="classNLNET_1_1CBufSock.html#o0">_LastFlushTime</a> = now;
00260 <font class="comment">//                              nlnettrace ( "CBufSock::update-END time 1" );</font>
00261                                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00262                         }
00263                         <font class="keywordflow">else</font>
00264                         {
00265 <font class="comment">//                              nlnettrace ( "CBufSock::update-END time 0" );</font>
00266                                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00267                         }
00268                 }
00269         }
00270         <font class="comment">// Size trigger</font>
00271         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CBufSock.html#o2">_TriggerSize</a> != -1 )
00272         {
00273                 <font class="keywordflow">if</font> ( (sint32)<a class="code" href="classNLNET_1_1CBufSock.html#n0">SendFifo</a>.<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>() &gt; <a class="code" href="classNLNET_1_1CBufSock.html#o2">_TriggerSize</a> )
00274                 {
00275 <font class="preprocessor">#ifdef NL_DEBUG</font>
00276 <font class="preprocessor"></font>                        _FlushTrigger = FTSize;
00277 <font class="preprocessor">#endif</font>
00278 <font class="preprocessor"></font><font class="comment">//                      nlnettrace( "CBufSock::update-END size" );</font>
00279                         <font class="keywordflow">return</font> <a class="code" href="classNLNET_1_1CBufSock.html#z347_3">flush</a>();
00280                 }
00281         }
00282 <font class="comment">//      nlnettrace( "CBufSock::update-END nosend" );</font>
00283         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00284 }
00285 
00286 
00287 <font class="comment">/*</font>
00288 <font class="comment"> * Connects to the specified addr; set connectedstate to true if no connection advertising is needed</font>
00289 <font class="comment"> * Precond: not connected</font>
00290 <font class="comment"> */</font>
<a name="l00291"></a><a class="code" href="classNLNET_1_1CBufSock.html#b5">00291</a> <font class="keywordtype">void</font> CBufSock::connect( <font class="keyword">const</font> CInetAddress&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a414">addr</a>, <font class="keywordtype">bool</font> nodelay, <font class="keywordtype">bool</font> connectedstate )
00292 {
00293         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00294         <a class="code" href="debug_8h.html#a6">nlassert</a>( ! <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;connected() );
00295 
00296         <a class="code" href="classNLNET_1_1CBufSock.html#m1">SendNextValue</a> = <a class="code" href="classNLNET_1_1CBufSock.html#m2">ReceiveNextValue</a> = 0;
00297         
00298         <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;connect( <a class="code" href="driver__opengl__extension__def_8h.html#a414">addr</a> );
00299         <a class="code" href="classNLNET_1_1CBufSock.html#o6">_ConnectedState</a> = connectedstate;
00300         <a class="code" href="classNLNET_1_1CBufSock.html#n2">_KnowConnected</a> = connectedstate;
00301         <font class="keywordflow">if</font> ( nodelay )
00302         {
00303                 <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;setNoDelay( <font class="keyword">true</font> );
00304         }
00305 }
00306 
00307 
00308 <font class="comment">/*</font>
00309 <font class="comment"> * Disconnects; set connectedstate to false if no disconnection advertising is needed</font>
00310 <font class="comment"> */</font>
<a name="l00311"></a><a class="code" href="classNLNET_1_1CBufSock.html#b6">00311</a> <font class="keywordtype">void</font> CBufSock::disconnect( <font class="keywordtype">bool</font> connectedstate )
00312 {
00313         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00314         <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;disconnect();
00315         <a class="code" href="classNLNET_1_1CBufSock.html#o6">_ConnectedState</a> = connectedstate;
00316         <a class="code" href="classNLNET_1_1CBufSock.html#n2">_KnowConnected</a> = connectedstate;
00317 
00318         <a class="code" href="classNLNET_1_1CBufSock.html#m1">SendNextValue</a> = <a class="code" href="classNLNET_1_1CBufSock.html#m2">ReceiveNextValue</a> = 0;
00319 }
00320 
00321 
00322 <font class="comment">/*</font>
00323 <font class="comment"> * Returns a string with the characteristics of the object</font>
00324 <font class="comment"> */</font>
<a name="l00325"></a><a class="code" href="classNLNET_1_1CBufSock.html#a3">00325</a> string CBufSock::asString()<font class="keyword"> const</font>
00326 <font class="keyword"></font>{
00327         stringstream ss;
00328         <font class="keywordflow">if</font> (<font class="keyword">this</font> == InvalidSockId) <font class="comment">// tricky</font>
00329                 ss &lt;&lt; <font class="stringliteral">"&lt;Null&gt;"</font>;
00330         <font class="keywordflow">else</font>
00331         {
00332                 <font class="comment">// if it crashs here, it means that the CBufSock was deleted and you try to access to the virtual table that is empty</font>
00333                 <font class="comment">// because the object is destroyed.</font>
00334                 ss &lt;&lt; <a class="code" href="classNLNET_1_1CBufSock.html#b1">typeStr</a>();
00335                 ss &lt;&lt; hex &lt;&lt; <font class="keyword">this</font> &lt;&lt; dec &lt;&lt; <font class="stringliteral">" (socket "</font>;
00336                 
00337                 <font class="keywordflow">if</font> (<a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a> == NULL)
00338                         ss &lt;&lt; <font class="stringliteral">"&lt;Null&gt;"</font>;
00339                 <font class="keywordflow">else</font>
00340                         ss &lt;&lt; <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;descriptor();
00341 
00342                 ss &lt;&lt; <font class="stringliteral">")"</font>;
00343         }
00344         <font class="keywordflow">return</font> ss.str();
00345 }
00346 
00347 
00348 <font class="comment">/*</font>
00349 <font class="comment"> * Constructor with an existing socket (created by an accept())</font>
00350 <font class="comment"> */</font>
<a name="l00351"></a><a class="code" href="classNLNET_1_1CServerBufSock.html#b0">00351</a> CServerBufSock::CServerBufSock( CTcpSock *sock ) :
00352         CBufSock( sock ),
00353         _Advertised( false ),
00354         _NowReadingBuffer( false ),
00355         _BytesRead( 0 ),
00356         _Length( 0 ),
00357         _OwnerTask( NULL )
00358 {
00359         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00360         <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CServerBufSock::CServerBufSock"</font> );
00361 }
00362 
00363 
00364 <font class="comment">// In Receive Threads:</font>
00365 
00366 
00367 <font class="comment">/*</font>
00368 <font class="comment"> * Receives a part of a message (nonblocking socket only)</font>
00369 <font class="comment"> */</font>
<a name="l00370"></a><a class="code" href="classNLNET_1_1CServerBufSock.html#b3">00370</a> <font class="keywordtype">bool</font> CServerBufSock::receivePart()
00371 {
00372         <a class="code" href="debug_8h.html#a6">nlassert</a> (<font class="keyword">this</font> != InvalidSockId);       <font class="comment">// invalid bufsock</font>
00373         <a class="code" href="buf__sock_8h.html#a0">nlnettrace</a>( <font class="stringliteral">"CServerBufSock::receivePart"</font> );
00374 
00375         <a class="code" href="namespaceNLNET.html#a6">TBlockSize</a> actuallen;
00376         <font class="keywordflow">if</font> ( ! <a class="code" href="classNLNET_1_1CServerBufSock.html#o1">_NowReadingBuffer</a> )
00377         {
00378                 <font class="comment">// Receiving length prefix</font>
00379                 actuallen = <font class="keyword">sizeof</font>(_Length)-<a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a>;
00380                 <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;receive( (uint8*)(&amp;<a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a>)+<a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a>, actuallen );
00381                 <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> += actuallen;
00382                 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> == <font class="keyword">sizeof</font>(_Length ) )
00383                 {
00384                         <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> != 0 )
00385                         {
00386                                 <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> = ntohl( <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> );
00387 
00388                                 <font class="comment">// Test size limit</font>
00389                                 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> &gt; <a class="code" href="classNLNET_1_1CServerBufSock.html#o5">_OwnerTask</a>-&gt;server()-&gt;maxExpectedBlockSize() )
00390                                 {
00391                                         <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_1CBufSock.html#a3">asString</a>().c_str() );
00392                                         <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Received length exceeding max expected"</font>, <font class="keyword">false</font> );
00393                                 }
00394 
00395                                 <a class="code" href="classNLNET_1_1CServerBufSock.html#o1">_NowReadingBuffer</a> = <font class="keyword">true</font>;
00396                                 <a class="code" href="classNLNET_1_1CServerBufSock.html#o4">_ReceiveBuffer</a>.resize( <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> );
00397                         }
00398                         <font class="keywordflow">else</font>
00399                         {
00400                                 <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_1CBufSock.html#a3">asString</a>().c_str() );
00401                         }
00402                         <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> = 0;
00403                 }
00404         }
00405 
00406         <font class="keywordflow">if</font> ( _NowReadingBuffer )
00407         {
00408                 <font class="comment">// Receiving payload buffer</font>
00409                 actuallen = <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a>-<a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a>;
00410                 <a class="code" href="classNLNET_1_1CBufSock.html#n1">Sock</a>-&gt;receive( &amp;*<a class="code" href="classNLNET_1_1CServerBufSock.html#o4">_ReceiveBuffer</a>.begin()+<a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a>, actuallen );
00411                 <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> += actuallen;
00412 
00413                 <font class="keywordflow">if</font> ( <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> == <a class="code" href="classNLNET_1_1CServerBufSock.html#o3">_Length</a> )
00414                 {
00415 <font class="preprocessor">#ifdef NL_DEBUG</font>
00416 <font class="preprocessor"></font>                        <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL1: %s received buffer (%u bytes): [%s]"</font>, <a class="code" href="classNLNET_1_1CBufSock.html#a3">asString</a>().c_str(), <a class="code" href="classNLNET_1_1CServerBufSock.html#o4">_ReceiveBuffer</a>.size(), stringFromVector(_ReceiveBuffer).c_str() );
00417 <font class="preprocessor">#endif</font>
00418 <font class="preprocessor"></font>                        <a class="code" href="classNLNET_1_1CServerBufSock.html#o1">_NowReadingBuffer</a> = <font class="keyword">false</font>;
00419                         <a class="code" href="classNLNET_1_1CServerBufSock.html#o2">_BytesRead</a> = 0;
00420                         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00421                 }
00422         }
00423 
00424         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00425 }
00426 
00427 } <font class="comment">// NLNET</font>
</pre></div>

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