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<hr><h1>sock.cpp</h1><a href="sock_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000 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="sock_8h.html">nel/net/sock.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="time__nl_8h.html">nel/misc/time_nl.h</a>"</font>
00030
00031 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00032 <font class="preprocessor"></font>
00033 <font class="preprocessor"># include <winsock2.h></font>
00034 <font class="comment">//# include <windows.h></font>
00035 <font class="preprocessor"># define socklen_t int</font>
00036 <font class="preprocessor"></font><font class="preprocessor"># define ERROR_NUM WSAGetLastError()</font>
00037 <font class="preprocessor"></font><font class="preprocessor"># define ERROR_WOULDBLOCK WSAEWOULDBLOCK</font>
00038 <font class="preprocessor"></font>
00039 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00040 <font class="preprocessor"></font>
00041 <font class="preprocessor"># include <<a class="code" href="unistd_8h.html">unistd.h</a>></font>
00042 <font class="preprocessor"># include <sys/types.h></font>
00043 <font class="preprocessor"># include <sys/time.h></font>
00044 <font class="preprocessor"># include <sys/socket.h></font>
00045 <font class="preprocessor"># include <netinet/in.h></font>
00046 <font class="preprocessor"># include <netinet/tcp.h></font>
00047 <font class="preprocessor"># include <arpa/inet.h></font>
00048 <font class="preprocessor"># include <netdb.h></font>
00049 <font class="preprocessor"># include <fcntl.h></font>
00050 <font class="preprocessor"># include <errno.h></font>
00051 <font class="preprocessor"># define SOCKET_ERROR -1</font>
00052 <font class="preprocessor"></font><font class="preprocessor"># define INVALID_SOCKET -1</font>
00053 <font class="preprocessor"></font><font class="preprocessor"># define ERROR_NUM errno</font>
00054 <font class="preprocessor"></font><font class="preprocessor"># define ERROR_WOULDBLOCK EWOULDBLOCK</font>
00055 <font class="preprocessor"></font><font class="preprocessor"># define ERROR_MSG strerror(errno)</font>
00056 <font class="preprocessor"></font><font class="keyword">typedef</font> <font class="keywordtype">int</font> SOCKET;
00057
00058 <font class="preprocessor">#endif</font>
00059 <font class="preprocessor"></font>
00060 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00061 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00062
00063 <font class="keyword">namespace </font>NLNET {
00064
00065
00066 <font class="keywordtype">bool</font> CSock::_Initialized = <font class="keyword">false</font>;
00067
00068 <font class="keywordtype">long</font> CSock::_TimeoutS = 0;
00069
00070 <font class="keywordtype">long</font> CSock::_TimeoutMs = 0;
00071
00072
00073 <font class="comment">/*</font>
00074 <font class="comment"> * ESocket constructor</font>
00075 <font class="comment"> */</font>
00076 ESocket::ESocket( <font class="keyword">const</font> <font class="keywordtype">char</font> *reason, <font class="keywordtype">bool</font> systemerror, CInetAddress *addr )
00077 {
00078 <font class="comment">/*it doesnt work on linux, should do something more cool</font>
00079 <font class="comment"> std::stringstream ss;</font>
00080 <font class="comment"> ss << "Socket error: " << reason;</font>
00081 <font class="comment"> if ( systemerror )</font>
00082 <font class="comment"> {</font>
00083 <font class="comment"> ss << " (" << ERROR_NUM;</font>
00084 <font class="comment">#ifdef NL_OS_UNIX</font>
00085 <font class="comment"> ss << ": " << ERROR_MSG;</font>
00086 <font class="comment">#endif</font>
00087 <font class="comment"> ss << ") " << std::endl;</font>
00088 <font class="comment"> }</font>
00089 <font class="comment"> _Reason = ss.str();</font>
00090 <font class="comment"> */</font>
00091 _Reason = <font class="stringliteral">"Socket error: "</font>;
00092 <a class="code" href="types__nl_8h.html#a13">uint</a> errornum = CSock::getLastError();
00093 <font class="keywordtype">char</font> str[256];
00094 <font class="keywordflow">if</font> ( addr != NULL )
00095 {
00096 <font class="comment">// Version with address</font>
00097 <a class="code" href="namespaceNLMISC.html#a186">smprintf</a>( str, 256, reason, addr->asString().c_str() ); <font class="comment">// reason *must* contain "%s"</font>
00098 _Reason += str;
00099 }
00100 <font class="keywordflow">else</font>
00101 {
00102 <font class="comment">// Version without address</font>
00103 _Reason += reason;
00104 }
00105 <font class="keywordflow">if</font> ( systemerror )
00106 {
00107 _Reason += <font class="stringliteral">" ("</font>;
00108 <a class="code" href="namespaceNLMISC.html#a186">smprintf</a>( str, 256, <font class="stringliteral">"%d"</font>, errornum );
00109 _Reason += str;
00110 <font class="keywordflow">if</font> ( errornum != 0 )
00111 {
00112 _Reason += <font class="stringliteral">": "</font>;
00113 _Reason += CSock::errorString( errornum );
00114 }
00115 _Reason += <font class="stringliteral">")"</font>;
00116 }
00117 <a class="code" href="debug_8h.html#a2">nlwarning</a>( <font class="stringliteral">"Exception will be launched: %s"</font>, _Reason.c_str() );
00118 }
00119
00120
00121 <font class="comment">/*</font>
00122 <font class="comment"> * Initializes the network engine if it is not already done (under Windows, calls WSAStartup()).</font>
00123 <font class="comment"> */</font>
00124 <font class="keywordtype">void</font> CSock::initNetwork()
00125 {
00126 <font class="keywordflow">if</font> ( ! CSock::_Initialized )
00127 {
00128 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00129 <font class="preprocessor"></font> WORD winsock_version = MAKEWORD( 2, 0 );
00130 WSADATA wsaData;
00131 <font class="keywordflow">if</font> ( WSAStartup( winsock_version, &wsaData ) != 0 )
00132 {
00133 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Winsock initialization failed"</font> );
00134 }
00135 <font class="preprocessor">#endif</font>
00136 <font class="preprocessor"></font> CSock::_Initialized = <font class="keyword">true</font>;
00137 }
00138 }
00139
00140 <font class="comment">/*</font>
00141 <font class="comment"> * Releases the network engine</font>
00142 <font class="comment"> */</font>
00143 <font class="keywordtype">void</font> CSock::releaseNetwork()
00144 {
00145 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00146 <font class="preprocessor"></font> WSACleanup();
00147 <font class="preprocessor">#endif</font>
00148 <font class="preprocessor"></font> CSock::_Initialized = <font class="keyword">false</font>;
00149 }
00150
00151
00152 <font class="comment">/* Returns the code of the last error that has occured.</font>
00153 <font class="comment"> * Note: This code is platform-dependant. On Unix, it is errno; on Windows it is the Winsock error code.</font>
00154 <font class="comment"> * See also errorString()</font>
00155 <font class="comment"> */</font>
00156 <a class="code" href="types__nl_8h.html#a13">uint</a> CSock::getLastError()
00157 {
00158 <font class="keywordflow">return</font> (uint)ERROR_NUM;
00159 }
00160
00161
00162 <font class="comment">/*</font>
00163 <font class="comment"> * Returns a string explaining the network error (see getLastError())</font>
00164 <font class="comment"> */</font>
00165 std::string CSock::errorString( <a class="code" href="types__nl_8h.html#a13">uint</a> errorcode )
00166 {
00167 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00168 <font class="preprocessor"></font> <font class="keywordflow">switch</font>( errorcode )
00169 {
00170 <font class="keywordflow">case</font> WSAEINTR <font class="comment">/*10004*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Blocking operation interrupted"</font>;
00171 <font class="keywordflow">case</font> WSAEINVAL <font class="comment">/*10022*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Invalid socket (maybe not bound) or argument"</font>;
00172 <font class="keywordflow">case</font> WSAEMFILE <font class="comment">/*10024*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Too many open sockets"</font>;
00173 <font class="keywordflow">case</font> WSAENOTSOCK <font class="comment">/*10038*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Socket operation on nonsocket (maybe invalid select descriptor)"</font>;
00174 <font class="keywordflow">case</font> WSAEMSGSIZE <font class="comment">/*10040*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Message too long"</font>;
00175 <font class="keywordflow">case</font> WSAEADDRINUSE <font class="comment">/*10048*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Address already in use (is this service already running in this computer?)"</font>;
00176 <font class="keywordflow">case</font> WSAEADDRNOTAVAIL<font class="comment">/*10049*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Address not available"</font>;
00177 <font class="keywordflow">case</font> WSAENETDOWN <font class="comment">/*10050*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Network is down"</font>;
00178 <font class="keywordflow">case</font> WSAENETUNREACH <font class="comment">/*10051*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Network is unreachable"</font>;
00179 <font class="keywordflow">case</font> WSAECONNRESET <font class="comment">/*10054*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Connection reset by peer"</font>;
00180 <font class="keywordflow">case</font> WSAENOBUFS <font class="comment">/*10055*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"No buffer space available; please close applications or reboot"</font>;
00181 <font class="keywordflow">case</font> WSAESHUTDOWN <font class="comment">/*10058*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Cannot send/receive after socket shutdown"</font>;
00182 <font class="keywordflow">case</font> WSAETIMEDOUT <font class="comment">/*10060*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Connection timed-out"</font>;
00183 <font class="keywordflow">case</font> WSAECONNREFUSED <font class="comment">/*10061*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Connection refused, the server may be offline"</font>;
00184 <font class="keywordflow">case</font> WSAEHOSTUNREACH <font class="comment">/*10065*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"Remote host is unreachable"</font>;
00185 <font class="keywordflow">case</font> WSANOTINITIALISED <font class="comment">/*093*/</font>: <font class="keywordflow">return</font> <font class="stringliteral">"'Windows Sockets' not initialized"</font>;
00186 <font class="keywordflow">default</font>: <font class="keywordflow">return</font> <font class="stringliteral">""</font>;
00187 }
00188 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00189 <font class="preprocessor"></font> <font class="keywordflow">return</font> std::string( strerror( errorcode ) );
00190 <font class="preprocessor">#endif</font>
00191 <font class="preprocessor"></font>
00192 }
00193
00194
00195
00196 <font class="comment">/*</font>
00197 <font class="comment"> * Constructor</font>
00198 <font class="comment"> */</font>
00199 CSock::CSock( <font class="keywordtype">bool</font> logging ) :
00200 _Sock( INVALID_SOCKET ),
00201 _Logging( logging ),
00202 _BytesReceived( 0 ),
00203 _BytesSent( 0 ),
00204 _NonBlocking( false ),
00205 _MaxReceiveTime( 0 ),
00206 _MaxSendTime( 0 )
00207 {
00208 <a class="code" href="debug_8h.html#a6">nlassert</a>( CSock::_Initialized );
00209 <font class="comment">/*{</font>
00210 <font class="comment"> CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00211 <font class="comment"> sync.value() = false;</font>
00212 <font class="comment"> }*/</font>
00213 _Connected = <font class="keyword">false</font>;
00214 }
00215
00216
00217 <font class="comment">/*</font>
00218 <font class="comment"> * Construct a CSock object using an existing connected socket descriptor and its associated remote address</font>
00219 <font class="comment"> */</font>
00220 CSock::CSock( SOCKET sock, <font class="keyword">const</font> CInetAddress& remoteaddr ) :
00221 _Sock( sock ),
00222 _Logging( true ),
00223 _BytesReceived( 0 ),
00224 _BytesSent( 0 ),
00225 _RemoteAddr( remoteaddr ),
00226 _NonBlocking( false ),
00227 _MaxReceiveTime( 0 ),
00228 _MaxSendTime( 0 )
00229 {
00230 <a class="code" href="debug_8h.html#a6">nlassert</a>( CSock::_Initialized );
00231 <font class="comment">/*{</font>
00232 <font class="comment"> CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00233 <font class="comment"> sync.value() = true;</font>
00234 <font class="comment"> }*/</font>
00235 _Connected = <font class="keyword">true</font>;
00236
00237 <font class="comment">// Check remote address</font>
00238 <font class="keywordflow">if</font> ( ! _RemoteAddr.isValid() )
00239 {
00240 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Could not init a socket object with an invalid address"</font>, <font class="keyword">false</font> );
00241 }
00242
00243 <font class="comment">// Get local socket name</font>
00244 setLocalAddress();
00245 }
00246
00247
00248 <font class="comment">/*</font>
00249 <font class="comment"> * Creates the socket and get a valid descriptor</font>
00250 <font class="comment"> */</font>
00251 <font class="keywordtype">void</font> CSock::createSocket( <font class="keywordtype">int</font> <a class="code" href="driver__opengl__extension__def_8h.html#a240">type</a>, <font class="keywordtype">int</font> protocol )
00252 {
00253 <a class="code" href="debug_8h.html#a6">nlassert</a>( _Sock == INVALID_SOCKET );
00254
00255 _Sock = socket( AF_INET, <a class="code" href="driver__opengl__extension__def_8h.html#a240">type</a>, protocol ); <font class="comment">// or IPPROTO_IP (=0) ?</font>
00256 <font class="keywordflow">if</font> ( _Sock == INVALID_SOCKET )
00257 {
00258 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Socket creation failed"</font> );
00259 }
00260
00261 <font class="keywordflow">if</font> ( _Logging )
00262 {
00263 <font class="comment">// nldebug( "LNETL0: Socket %d open (TCP)", _Sock );</font>
00264 }
00265 }
00266
00267
00268 <font class="comment">/*</font>
00269 <font class="comment"> * Closes the listening socket</font>
00270 <font class="comment"> */</font>
00271 <font class="keywordtype">void</font> CSock::close()
00272 {
00273 <font class="keywordflow">if</font> ( _Logging )
00274 {
00275 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL0: Socket %d closing for %s at %s"</font>, _Sock, _RemoteAddr.asString().c_str(), _LocalAddr.asString().c_str() );
00276 }
00277 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00278 <font class="preprocessor"></font> closesocket( _Sock );
00279 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00280 <font class="preprocessor"></font> ::close( _Sock );
00281 <font class="preprocessor">#endif</font>
00282 <font class="preprocessor"></font> _Sock = INVALID_SOCKET;
00283 }
00284
00285
00286 <font class="comment">/*</font>
00287 <font class="comment"> * Destructor</font>
00288 <font class="comment"> */</font>
00289 CSock::~CSock()
00290 {
00291 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"Report for %s socket %s: Max send time: %u Max recv time: %u"</font>, _NonBlocking?<font class="stringliteral">"non-blocking"</font>:<font class="stringliteral">"blocking"</font>, remoteAddr().asString().c_str(), _MaxSendTime, _MaxReceiveTime );
00292 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"Max send time: %u"</font>, _MaxSendTime);
00293 <font class="keywordflow">if</font> ( _Sock != INVALID_SOCKET )
00294 {
00295 <font class="keywordflow">if</font> ( _Logging )
00296 {
00297 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL0: Socket %d closing for %s at %s"</font>, _Sock, _RemoteAddr.asString().c_str(), _LocalAddr.asString().c_str() );
00298 }
00299
00300 <font class="keywordflow">if</font> ( connected() )
00301 {
00302 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00303 <font class="preprocessor"></font> shutdown( _Sock, SD_BOTH );
00304 }
00305 closesocket( _Sock );
00306 <font class="preprocessor">#elif defined NL_OS_UNIX</font>
00307 <font class="preprocessor"></font> shutdown( _Sock, SHUT_RDWR );
00308 }
00309 ::close( _Sock );
00310 <font class="preprocessor">#endif</font>
00311 <font class="preprocessor"></font> _Sock = INVALID_SOCKET;
00312 }
00313 }
00314
00315
00316 <font class="comment">/*</font>
00317 <font class="comment"> * Connection</font>
00318 <font class="comment"> */</font>
00319 <font class="keywordtype">void</font> CSock::connect( <font class="keyword">const</font> CInetAddress& addr )
00320 {
00321 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL0: Socket %d connecting to %s..."</font>, _Sock, addr.asString().c_str() );
00322
00323 <font class="comment">// Check address</font>
00324 <font class="keywordflow">if</font> ( ! addr.isValid() )
00325 {
00326 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to connect to invalid address"</font>, <font class="keyword">false</font> );
00327 }
00328
00329 <font class="preprocessor">#ifndef NL_OS_WINDOWS</font>
00330 <font class="preprocessor"></font> <font class="comment">// Set Reuse Address On (does not work on Win98 and is useless on Win2000)</font>
00331 <font class="keywordtype">int</font> value = <font class="keyword">true</font>;
00332 <font class="keywordflow">if</font> ( setsockopt( _Sock, SOL_SOCKET, SO_REUSEADDR, &value, <font class="keyword">sizeof</font>(value) ) == SOCKET_ERROR )
00333 {
00334 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"ReuseAddr failed"</font> );
00335 }
00336 <font class="preprocessor">#endif</font>
00337 <font class="preprocessor"></font>
00338 <font class="comment">// Connection (when _Sock is a datagram socket, connect establishes a default destination address)</font>
00339 <font class="keywordflow">if</font> ( ::connect( _Sock, (<font class="keyword">const</font> sockaddr *)(addr.sockAddr()), <font class="keyword">sizeof</font>(sockaddr_in) ) != 0 )
00340 {
00341 <font class="comment">/* if ( _Logging )</font>
00342 <font class="comment"> {</font>
00343 <font class="comment">#ifdef NL_OS_WINDOWS</font>
00344 <font class="comment"> nldebug( "Impossible to connect socket %d to %s %s (%d)", _Sock, addr.hostName().c_str(), addr.asIPString().c_str(), ERROR_NUM );</font>
00345 <font class="comment">#elif defined NL_OS_UNIX</font>
00346 <font class="comment"> nldebug( "Impossible to connect socket %d to %s %s (%d:%s)", _Sock, addr.hostName().c_str(), addr.asIPString().c_str(), ERROR_NUM, strerror(ERROR_NUM) );</font>
00347 <font class="comment">#endif</font>
00348 <font class="comment"> }</font>
00349 <font class="comment">*/</font>
00350 <font class="keywordflow">throw</font> ESocketConnectionFailed( addr );
00351 }
00352 setLocalAddress();
00353 <font class="keywordflow">if</font> ( _Logging )
00354 {
00355 <a class="code" href="debug_8h.html#a0">nldebug</a>( <font class="stringliteral">"LNETL0: Socket %d connected to %s (local %s)"</font>, _Sock, addr.asString().c_str(), _LocalAddr.asString().c_str() );
00356 }
00357 _RemoteAddr = addr;
00358
00359 _BytesReceived = 0;
00360 _BytesSent = 0;
00361
00362 <font class="comment">/*CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00363 <font class="comment"> sync.value() = true;*/</font>
00364 _Connected = <font class="keyword">true</font>;
00365 }
00366
00367
00368 <font class="comment">/*</font>
00369 <font class="comment"> * Checks if there is some data to receive</font>
00370 <font class="comment"> */</font>
00371 <font class="keywordtype">bool</font> CSock::dataAvailable()
00372 {
00373 fd_set fdset;
00374 FD_ZERO( &fdset );
00375 FD_SET( _Sock, &fdset );
00376 timeval tv;
00377 tv.tv_sec = CSock::_TimeoutS;
00378 tv.tv_usec = CSock::_TimeoutMs;
00379
00380 <font class="comment">// Test for message received.</font>
00381 <font class="keywordtype">int</font> res = select( _Sock+1, &fdset, NULL, NULL, &tv );
00382 <font class="keywordflow">switch</font> ( res )
00383 {
00384 <font class="keywordflow">case</font> 0 : <font class="keywordflow">return</font> <font class="keyword">false</font>;
00385 <font class="keywordflow">case</font> -1 : <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"CSock::dataAvailable(): select failed"</font> ); <font class="keywordflow">return</font> <font class="keyword">false</font>;
00386 <font class="keywordflow">default</font> : <font class="keywordflow">return</font> <font class="keyword">true</font>;
00387 }
00388 }
00389
00390
00391 <font class="comment">/*</font>
00392 <font class="comment"> * Sets the local address</font>
00393 <font class="comment"> */</font>
00394 <font class="keywordtype">void</font> CSock::setLocalAddress()
00395 {
00396 sockaddr saddr;
00397 socklen_t saddrlen = <font class="keyword">sizeof</font>(saddr);
00398 <font class="keywordflow">if</font> ( getsockname( _Sock, &saddr, &saddrlen ) != 0 )
00399 {
00400 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to find local address"</font> );
00401 }
00402 _LocalAddr.setSockAddr( (<font class="keyword">const</font> sockaddr_in *)&saddr );
00403 }
00404
00405
00406 <font class="comment">/*</font>
00407 <font class="comment"> * Sends data, or returns false if it would block</font>
00408 <font class="comment"> */</font>
00409 CSock::TSockResult CSock::send( <font class="keyword">const</font> <a class="code" href="types__nl_8h.html#a5">uint8</a> *buffer, <a class="code" href="types__nl_8h.html#a9">uint32</a>& <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>, <font class="keywordtype">bool</font> throw_exception )
00410 {
00411 <a class="code" href="types__nl_8h.html#a9">uint32</a> realLen = <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>;
00412 <a class="code" href="namespaceNLMISC.html#a176">TTicks</a> before = CTime::getPerformanceTime();
00413 <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> = ::send( _Sock, (<font class="keyword">const</font> <font class="keywordtype">char</font>*)buffer, <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>, 0 );
00414 _MaxSendTime = max( (<a class="code" href="types__nl_8h.html#a9">uint32</a>)(CTime::ticksToSecond(CTime::getPerformanceTime()-before)*1000.0f), _MaxSendTime );
00415
00416 <font class="keywordflow">if</font> ( _Logging )
00417 {
00418 <font class="comment">// nldebug ("LNETL0: CSock::send(): Sent %d bytes to %d res: %d (%d)", realLen, _Sock, len, ERROR_NUM);</font>
00419 }
00420
00421 <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> == SOCKET_ERROR )
00422 {
00423 <font class="keywordflow">if</font> ( ERROR_NUM == ERROR_WOULDBLOCK )
00424 {
00425 <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> = 0;
00426 <font class="keywordflow">return</font> Ok;
00427 }
00428 <font class="keywordflow">if</font> ( throw_exception )
00429 {
00430 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to send data"</font> );
00431 }
00432 <font class="keywordflow">return</font> <a class="code" href="namespaceNLNET.html#a113a18">Error</a>;
00433 }
00434 _BytesSent += <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>;
00435
00436 <font class="keywordflow">return</font> Ok;
00437 }
00438
00439
00440
00441 <font class="comment">/*</font>
00442 <font class="comment"> * Receives data</font>
00443 <font class="comment"> */</font>
00444 CSock::TSockResult CSock::receive( <a class="code" href="types__nl_8h.html#a5">uint8</a> *buffer, <a class="code" href="types__nl_8h.html#a9">uint32</a>& <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>, <font class="keywordtype">bool</font> throw_exception )
00445 {
00446 <font class="keywordflow">if</font> ( _NonBlocking )
00447 {
00448 <font class="comment">// Receive incoming message (only the received part)</font>
00449
00450 <a class="code" href="types__nl_8h.html#a9">uint32</a> realLen = <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>;
00451
00452 <a class="code" href="namespaceNLMISC.html#a176">TTicks</a> before = CTime::getPerformanceTime();
00453 <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> = ::recv( _Sock, (<font class="keywordtype">char</font>*)buffer, <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>, 0 );
00454
00455 <font class="keywordflow">if</font> ( _Logging )
00456 {
00457 <font class="comment">// nldebug ("LNETL0: CSock::receive(): NBM Received %d bytes to %d res: %d (%d)", realLen, _Sock, len, ERROR_NUM);</font>
00458 }
00459
00460 _MaxReceiveTime = max( (<a class="code" href="types__nl_8h.html#a9">uint32</a>)(CTime::ticksToSecond(CTime::getPerformanceTime()-before)*1000.0f), _MaxReceiveTime );
00461 <font class="keywordflow">switch</font> ( len )
00462 {
00463 <font class="comment">// Graceful disconnection</font>
00464 <font class="keywordflow">case</font> 0 :
00465 {
00466 <font class="comment">/*{</font>
00467 <font class="comment"> CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00468 <font class="comment"> sync.value() = false;</font>
00469 <font class="comment"> }*/</font>
00470 _Connected = <font class="keyword">false</font>;
00471 <font class="keywordflow">if</font> ( throw_exception )
00472 {
00473 <font class="keywordflow">throw</font> ESocketConnectionClosed();
00474 }
00475 <font class="keywordflow">return</font> CSock::ConnectionClosed;
00476 }
00477
00478 <font class="comment">// Socket error or call would block</font>
00479 <font class="keywordflow">case</font> SOCKET_ERROR :
00480 {
00481 <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> = 0;
00482 <font class="keywordflow">if</font> ( ERROR_NUM == ERROR_WOULDBLOCK )
00483 {
00484 <font class="comment">// Call would block</font>
00485 <font class="keywordflow">return</font> CSock::WouldBlock;
00486 }
00487 <font class="keywordflow">else</font>
00488 {
00489 <font class="comment">// Socket error</font>
00490 <font class="keywordflow">if</font> ( throw_exception )
00491 {
00492 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to receive data"</font> );
00493 }
00494 <font class="keywordflow">return</font> CSock::Error;
00495 }
00496 }
00497 }
00498 }
00499 <font class="keywordflow">else</font> <font class="comment">// Blocking Mode</font>
00500 {
00501 <font class="comment">// Receive incoming message, waiting until a complete message has arrived</font>
00502 <a class="code" href="types__nl_8h.html#a13">uint</a> total = 0;
00503 <a class="code" href="types__nl_8h.html#a13">uint</a> brecvd;
00504
00505 <a class="code" href="types__nl_8h.html#a9">uint32</a> realLen = <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>;
00506
00507 <font class="keywordflow">while</font> ( total < <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a> )
00508 {
00509 <a class="code" href="namespaceNLMISC.html#a176">TTicks</a> before = CTime::getPerformanceTime();
00510 brecvd = ::recv( _Sock, (<font class="keywordtype">char</font>*)(buffer+total), <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>-total, 0 );
00511
00512 <font class="comment">// nldebug ("LNETL0: CSock::receive(): BM Received %d bytes to %d res: %d (%d)", realLen, _Sock, len, ERROR_NUM);</font>
00513
00514 _MaxReceiveTime = max( (<a class="code" href="types__nl_8h.html#a9">uint32</a>)(CTime::ticksToSecond(CTime::getPerformanceTime()-before)*1000.0f), _MaxReceiveTime );
00515
00516 <font class="keywordflow">switch</font> ( brecvd )
00517 {
00518 <font class="comment">// Graceful disconnection</font>
00519 <font class="keywordflow">case</font> 0 :
00520 {
00521 <font class="comment">/*{</font>
00522 <font class="comment"> CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00523 <font class="comment"> sync.value() = false;</font>
00524 <font class="comment"> }*/</font>
00525 _Connected = <font class="keyword">false</font>;
00526 <font class="keywordflow">if</font> ( throw_exception )
00527 {
00528 <font class="keywordflow">throw</font> ESocketConnectionClosed();
00529 }
00530 <font class="keywordflow">return</font> CSock::ConnectionClosed;
00531 }
00532
00533 <font class="comment">// Socket error</font>
00534 <font class="keywordflow">case</font> SOCKET_ERROR :
00535 {
00536 <font class="keywordflow">if</font> ( throw_exception )
00537 {
00538 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Unable to receive data"</font> );
00539 }
00540 <font class="keywordflow">return</font> CSock::Error;
00541 }
00542 }
00543 total += brecvd;
00544 }
00545 }
00546
00547 <font class="comment">/*if ( _Logging )</font>
00548 <font class="comment"> {</font>
00549 <font class="comment"> nldebug( "LNETL0: Socket %d received %d bytes", _Sock, len );</font>
00550 <font class="comment"> }*/</font>
00551 _BytesReceived += <a class="code" href="driver__opengl__extension__def_8h.html#a230">len</a>;
00552 <font class="keywordflow">return</font> CSock::Ok;
00553 }
00554
00555
00556 <font class="comment">/*</font>
00557 <font class="comment"> * Returns if the socket is connected</font>
00558 <font class="comment"> */</font>
00559 <font class="keywordtype">bool</font> CSock::connected()
00560 {
00561 <font class="comment">/*bool b;</font>
00562 <font class="comment"> {</font>
00563 <font class="comment"> //nldebug( "LNETL0: CSock::connected-BEGIN (socket %u)", descriptor() );</font>
00564 <font class="comment"> CSynchronized<bool>::CAccessor sync( &_SyncConnected );</font>
00565 <font class="comment"> b = sync.value();</font>
00566 <font class="comment"> }</font>
00567 <font class="comment"> //nldebug( "LNETL0: CSock::connected-END" );</font>
00568 <font class="comment"> return b;*/</font>
00569 <font class="keywordflow">return</font> _Connected;
00570 }
00571
00572
00573 <font class="comment">/*</font>
00574 <font class="comment"> * Sets the socket in nonblocking mode</font>
00575 <font class="comment"> */</font>
00576 <font class="keywordtype">void</font> CSock::setNonBlockingMode ( <font class="keywordtype">bool</font> bm )
00577 {
00578 <font class="keywordflow">if</font> ( _NonBlocking != bm )
00579 {
00580 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00581 <font class="preprocessor"></font> u_long b = bm;
00582 <font class="keywordflow">if</font> ( ioctlsocket( _Sock, FIONBIO, &b ) != 0 )
00583 <font class="preprocessor">#else</font>
00584 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( fcntl( _Sock, F_SETFL, FNDELAY | fcntl( _Sock, F_GETFL, 0 ) ) == -1 )
00585 <font class="preprocessor">#endif</font>
00586 <font class="preprocessor"></font> {
00587 <font class="keywordflow">throw</font> ESocket( <font class="stringliteral">"Cannot set nonblocking mode"</font> );
00588 }
00589 _NonBlocking = bm;
00590 }
00591 }
00592
00593
00594 } <font class="comment">// NLNET</font>
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