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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>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> +</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> |