[5566] | 1 | /* |
---|
| 2 | orxonox - the future of 3D-vertical-scrollers |
---|
| 3 | |
---|
| 4 | Copyright (C) 2004 orx |
---|
| 5 | |
---|
| 6 | This program is free software; you can redistribute it and/or modify |
---|
| 7 | it under the terms of the GNU General Public License as published by |
---|
| 8 | the Free Software Foundation; either version 2, or (at your option) |
---|
| 9 | any later version. |
---|
| 10 | |
---|
| 11 | ### File Specific: |
---|
[5601] | 12 | main-programmer: claudio |
---|
[5800] | 13 | co-programmer: |
---|
[5566] | 14 | */ |
---|
| 15 | |
---|
| 16 | |
---|
| 17 | /* this is for debug output. It just says, that all calls to PRINT() belong to the DEBUG_MODULE_NETWORK module |
---|
| 18 | For more information refere to https://www.orxonox.net/cgi-bin/trac.cgi/wiki/DebugOutput |
---|
| 19 | */ |
---|
| 20 | #define DEBUG_MODULE_NETWORK |
---|
| 21 | |
---|
[5747] | 22 | |
---|
[5647] | 23 | #include "base_object.h" |
---|
[5731] | 24 | #include "network_protocol.h" |
---|
[7565] | 25 | #include "udp_socket.h" |
---|
| 26 | #include "udp_server_socket.h" |
---|
[5647] | 27 | #include "connection_monitor.h" |
---|
| 28 | #include "synchronizeable.h" |
---|
[6341] | 29 | #include "network_game_manager.h" |
---|
[6959] | 30 | #include "shared_network_data.h" |
---|
[7671] | 31 | #include "message_manager.h" |
---|
[6341] | 32 | |
---|
[7748] | 33 | #include "network_log.h" |
---|
| 34 | |
---|
| 35 | |
---|
[7565] | 36 | #include "lib/util/loading/factory.h" |
---|
| 37 | |
---|
[5649] | 38 | #include "debug.h" |
---|
[6139] | 39 | #include "class_list.h" |
---|
[6144] | 40 | #include <algorithm> |
---|
[5647] | 41 | |
---|
[5566] | 42 | /* include your own header */ |
---|
| 43 | #include "network_stream.h" |
---|
| 44 | |
---|
[5595] | 45 | /* probably unnecessary */ |
---|
[5594] | 46 | using namespace std; |
---|
| 47 | |
---|
[5595] | 48 | |
---|
[5747] | 49 | #define PACKAGE_SIZE 256 |
---|
[5647] | 50 | |
---|
[5747] | 51 | |
---|
[5800] | 52 | NetworkStream::NetworkStream() |
---|
[5996] | 53 | : DataStream() |
---|
[5647] | 54 | { |
---|
| 55 | this->init(); |
---|
[5648] | 56 | /* initialize the references */ |
---|
[5996] | 57 | this->type = NET_CLIENT; |
---|
[5647] | 58 | } |
---|
| 59 | |
---|
[6695] | 60 | |
---|
[7540] | 61 | NetworkStream::NetworkStream( std::string host, int port ) |
---|
[5996] | 62 | { |
---|
[6139] | 63 | this->type = NET_CLIENT; |
---|
[5996] | 64 | this->init(); |
---|
[7565] | 65 | this->peers[0].socket = new UdpSocket( host, port ); |
---|
[7631] | 66 | this->peers[0].userId = 0; |
---|
| 67 | this->peers[0].isServer = true; |
---|
[7767] | 68 | this->peers[0].connectionMonitor = new ConnectionMonitor( 0 ); |
---|
[5996] | 69 | } |
---|
| 70 | |
---|
| 71 | |
---|
[7565] | 72 | NetworkStream::NetworkStream( int port ) |
---|
[5647] | 73 | { |
---|
[6139] | 74 | this->type = NET_SERVER; |
---|
[5647] | 75 | this->init(); |
---|
[7565] | 76 | this->serverSocket = new UdpServerSocket(port); |
---|
[5996] | 77 | this->bActive = true; |
---|
[5649] | 78 | } |
---|
| 79 | |
---|
| 80 | |
---|
[5647] | 81 | void NetworkStream::init() |
---|
| 82 | { |
---|
| 83 | /* set the class id for the base object */ |
---|
| 84 | this->setClassID(CL_NETWORK_STREAM, "NetworkStream"); |
---|
[5996] | 85 | this->bActive = false; |
---|
[6139] | 86 | this->serverSocket = NULL; |
---|
[6341] | 87 | this->networkGameManager = NULL; |
---|
[6139] | 88 | myHostId = 0; |
---|
[7565] | 89 | currentState = 0; |
---|
[5594] | 90 | } |
---|
| 91 | |
---|
[5647] | 92 | |
---|
[5566] | 93 | NetworkStream::~NetworkStream() |
---|
[5598] | 94 | { |
---|
[6139] | 95 | if ( this->serverSocket ) |
---|
| 96 | { |
---|
| 97 | serverSocket->close(); |
---|
| 98 | delete serverSocket; |
---|
| 99 | } |
---|
[5723] | 100 | |
---|
[7565] | 101 | for ( PeerList::iterator i = peers.begin(); i!=peers.end(); i++) |
---|
[6139] | 102 | { |
---|
[7565] | 103 | if ( i->second.socket ) |
---|
[6139] | 104 | { |
---|
[7565] | 105 | i->second.socket->disconnectServer(); |
---|
| 106 | delete i->second.socket; |
---|
| 107 | i->second.socket = NULL; |
---|
[6139] | 108 | } |
---|
[7565] | 109 | |
---|
| 110 | if ( i->second.handshake ) |
---|
[6139] | 111 | { |
---|
[7565] | 112 | delete i->second.handshake; |
---|
| 113 | i->second.handshake = NULL; |
---|
[6139] | 114 | } |
---|
| 115 | } |
---|
[7565] | 116 | |
---|
| 117 | if ( serverSocket ) |
---|
| 118 | { |
---|
| 119 | delete serverSocket; |
---|
| 120 | serverSocket = NULL; |
---|
| 121 | } |
---|
[5805] | 122 | |
---|
[5598] | 123 | } |
---|
| 124 | |
---|
[5996] | 125 | |
---|
[6695] | 126 | void NetworkStream::createNetworkGameManager() |
---|
| 127 | { |
---|
| 128 | this->networkGameManager = NetworkGameManager::getInstance(); |
---|
| 129 | // setUniqueID( maxCon+2 ) because we need one id for every handshake |
---|
| 130 | // and one for handshake to reject client maxCon+1 |
---|
[7684] | 131 | this->networkGameManager->setUniqueID( SharedNetworkData::getInstance()->getNewUniqueID() ); |
---|
[7681] | 132 | MessageManager::getInstance()->setUniqueID( SharedNetworkData::getInstance()->getNewUniqueID() ); |
---|
[6695] | 133 | } |
---|
| 134 | |
---|
| 135 | |
---|
| 136 | void NetworkStream::startHandshake() |
---|
| 137 | { |
---|
| 138 | Handshake* hs = new Handshake(false); |
---|
| 139 | hs->setUniqueID( 0 ); |
---|
[7565] | 140 | assert( peers[0].handshake == NULL ); |
---|
| 141 | peers[0].handshake = hs; |
---|
[7575] | 142 | // peers[0].handshake->setSynchronized( true ); |
---|
[6695] | 143 | //this->connectSynchronizeable(*hs); |
---|
[7591] | 144 | //this->connectSynchronizeable(*hs); |
---|
[7575] | 145 | PRINTF(0)("NetworkStream: Handshake created: %s\n", hs->getName()); |
---|
[6695] | 146 | } |
---|
| 147 | |
---|
| 148 | |
---|
[5996] | 149 | void NetworkStream::connectSynchronizeable(Synchronizeable& sync) |
---|
| 150 | { |
---|
[6139] | 151 | this->synchronizeables.push_back(&sync); |
---|
| 152 | sync.setNetworkStream( this ); |
---|
| 153 | |
---|
[7565] | 154 | this->bActive = true; |
---|
[5996] | 155 | } |
---|
| 156 | |
---|
[6695] | 157 | |
---|
[6139] | 158 | void NetworkStream::disconnectSynchronizeable(Synchronizeable& sync) |
---|
| 159 | { |
---|
[6144] | 160 | // removing the Synchronizeable from the List. |
---|
| 161 | std::list<Synchronizeable*>::iterator disconnectSynchro = std::find(this->synchronizeables.begin(), this->synchronizeables.end(), &sync); |
---|
| 162 | if (disconnectSynchro != this->synchronizeables.end()) |
---|
| 163 | this->synchronizeables.erase(disconnectSynchro); |
---|
[7602] | 164 | |
---|
[7767] | 165 | oldSynchronizeables[sync.getUniqueID()] = SDL_GetTicks(); |
---|
[6139] | 166 | } |
---|
| 167 | |
---|
| 168 | |
---|
[5604] | 169 | void NetworkStream::processData() |
---|
| 170 | { |
---|
[7565] | 171 | currentState++; |
---|
| 172 | |
---|
[6139] | 173 | if ( this->type == NET_SERVER ) |
---|
[7571] | 174 | { |
---|
| 175 | if ( serverSocket ) |
---|
| 176 | serverSocket->update(); |
---|
| 177 | |
---|
[6139] | 178 | this->updateConnectionList(); |
---|
[7571] | 179 | } |
---|
[6139] | 180 | else |
---|
| 181 | { |
---|
[7565] | 182 | if ( peers[0].socket && !peers[0].socket->isOk() ) |
---|
[6139] | 183 | { |
---|
| 184 | PRINTF(1)("lost connection to server\n"); |
---|
[5741] | 185 | |
---|
[7565] | 186 | peers[0].socket->disconnectServer(); |
---|
| 187 | delete peers[0].socket; |
---|
| 188 | peers[0].socket = NULL; |
---|
[6498] | 189 | |
---|
[7565] | 190 | if ( peers[0].handshake ) |
---|
| 191 | delete peers[0].handshake; |
---|
| 192 | peers[0].handshake = NULL; |
---|
[6139] | 193 | } |
---|
| 194 | } |
---|
| 195 | |
---|
[7767] | 196 | cleanUpOldSyncList(); |
---|
[7575] | 197 | handleHandshakes(); |
---|
[7792] | 198 | |
---|
[7800] | 199 | // order of up/downstream is important!!!! |
---|
| 200 | // don't change it |
---|
[7792] | 201 | handleDownstream(); |
---|
[7701] | 202 | handleUpstream(); |
---|
[6341] | 203 | |
---|
[6139] | 204 | } |
---|
| 205 | |
---|
| 206 | void NetworkStream::updateConnectionList( ) |
---|
| 207 | { |
---|
| 208 | //check for new connections |
---|
| 209 | |
---|
| 210 | NetworkSocket* tempNetworkSocket = serverSocket->getNewSocket(); |
---|
| 211 | |
---|
| 212 | if ( tempNetworkSocket ) |
---|
[5810] | 213 | { |
---|
[6139] | 214 | int clientId; |
---|
| 215 | if ( freeSocketSlots.size() >0 ) |
---|
[5810] | 216 | { |
---|
[6139] | 217 | clientId = freeSocketSlots.back(); |
---|
| 218 | freeSocketSlots.pop_back(); |
---|
[7565] | 219 | peers[clientId].socket = tempNetworkSocket; |
---|
[7681] | 220 | peers[clientId].handshake = new Handshake(true, clientId, this->networkGameManager->getUniqueID(), MessageManager::getInstance()->getUniqueID() ); |
---|
[7767] | 221 | peers[clientId].connectionMonitor = new ConnectionMonitor( clientId ); |
---|
[7565] | 222 | peers[clientId].handshake->setUniqueID(clientId); |
---|
| 223 | peers[clientId].userId = clientId; |
---|
[7631] | 224 | peers[clientId].isServer = false; |
---|
[6139] | 225 | } else |
---|
| 226 | { |
---|
[7575] | 227 | clientId = 1; |
---|
[7565] | 228 | |
---|
| 229 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); it++ ) |
---|
| 230 | if ( it->first >= clientId ) |
---|
| 231 | clientId = it->first + 1; |
---|
| 232 | |
---|
| 233 | peers[clientId].socket = tempNetworkSocket; |
---|
[7681] | 234 | peers[clientId].handshake = new Handshake(true, clientId, this->networkGameManager->getUniqueID(), MessageManager::getInstance()->getUniqueID()); |
---|
[7565] | 235 | peers[clientId].handshake->setUniqueID(clientId); |
---|
[7767] | 236 | peers[clientId].connectionMonitor = new ConnectionMonitor( clientId ); |
---|
[7565] | 237 | peers[clientId].userId = clientId; |
---|
[7631] | 238 | peers[clientId].isServer = false; |
---|
[7613] | 239 | |
---|
| 240 | PRINTF(0)("num sync: %d\n", synchronizeables.size()); |
---|
[6139] | 241 | } |
---|
[5730] | 242 | |
---|
[7575] | 243 | if ( clientId > MAX_CONNECTIONS ) |
---|
[6139] | 244 | { |
---|
[7565] | 245 | peers[clientId].handshake->doReject( "too many connections" ); |
---|
[6139] | 246 | PRINTF(0)("Will reject client %d because there are to many connections!\n", clientId); |
---|
[5810] | 247 | } |
---|
[6139] | 248 | else |
---|
| 249 | |
---|
| 250 | PRINTF(0)("New Client: %d\n", clientId); |
---|
| 251 | |
---|
[6695] | 252 | //this->connectSynchronizeable(*handshakes[clientId]); |
---|
[5802] | 253 | } |
---|
[5800] | 254 | |
---|
[6139] | 255 | //check if connections are ok else remove them |
---|
[7565] | 256 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); it++ ) |
---|
[6139] | 257 | { |
---|
[7767] | 258 | if ( |
---|
[7792] | 259 | it->second.socket && |
---|
| 260 | ( |
---|
| 261 | !it->second.socket->isOk() || |
---|
| 262 | it->second.connectionMonitor->hasTimedOut() |
---|
| 263 | ) |
---|
[7767] | 264 | ) |
---|
[6139] | 265 | { |
---|
[7565] | 266 | PRINTF(0)("Client is gone: %d\n", it->second.userId); |
---|
[6139] | 267 | |
---|
[7565] | 268 | it->second.socket->disconnectServer(); |
---|
| 269 | delete it->second.socket; |
---|
| 270 | it->second.socket = NULL; |
---|
[6498] | 271 | |
---|
[7565] | 272 | if ( it->second.handshake ) |
---|
| 273 | delete it->second.handshake; |
---|
| 274 | it->second.handshake = NULL; |
---|
[7631] | 275 | |
---|
| 276 | for ( SynchronizeableList::iterator it2 = synchronizeables.begin(); it2 != synchronizeables.end(); it2++ ) |
---|
| 277 | { |
---|
| 278 | (*it2)->cleanUpUser( it->second.userId ); |
---|
| 279 | } |
---|
[6139] | 280 | |
---|
[7565] | 281 | NetworkGameManager::getInstance()->signalLeftPlayer(it->second.userId); |
---|
[6737] | 282 | |
---|
[7565] | 283 | freeSocketSlots.push_back( it->second.userId ); |
---|
| 284 | |
---|
[6139] | 285 | } |
---|
| 286 | } |
---|
| 287 | |
---|
| 288 | |
---|
[5604] | 289 | } |
---|
[6139] | 290 | |
---|
[6695] | 291 | void NetworkStream::debug() |
---|
| 292 | { |
---|
| 293 | if( this->isServer()) |
---|
| 294 | PRINT(0)(" Host ist Server with ID: %i\n", this->myHostId); |
---|
| 295 | else |
---|
| 296 | PRINT(0)(" Host ist Client with ID: %i\n", this->myHostId); |
---|
| 297 | |
---|
| 298 | PRINT(0)(" Got %i connected Synchronizeables, showing active Syncs:\n", this->synchronizeables.size()); |
---|
| 299 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
---|
| 300 | { |
---|
| 301 | if( (*it)->beSynchronized() == true) |
---|
| 302 | PRINT(0)(" Synchronizeable of class: %s::%s, with unique ID: %i, Synchronize: %i\n", (*it)->getClassName(), (*it)->getName(), |
---|
| 303 | (*it)->getUniqueID(), (*it)->beSynchronized()); |
---|
| 304 | } |
---|
[7575] | 305 | PRINT(0)(" Maximal Connections: %i\n", MAX_CONNECTIONS ); |
---|
[6695] | 306 | |
---|
| 307 | } |
---|
| 308 | |
---|
| 309 | |
---|
| 310 | int NetworkStream::getSyncCount() |
---|
| 311 | { |
---|
| 312 | int n = 0; |
---|
| 313 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
---|
| 314 | if( (*it)->beSynchronized() == true) |
---|
| 315 | ++n; |
---|
| 316 | |
---|
| 317 | //return synchronizeables.size(); |
---|
| 318 | return n; |
---|
| 319 | } |
---|
| 320 | |
---|
[7565] | 321 | /** |
---|
| 322 | * check if handshakes completed |
---|
| 323 | */ |
---|
| 324 | void NetworkStream::handleHandshakes( ) |
---|
| 325 | { |
---|
| 326 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); it++ ) |
---|
| 327 | { |
---|
| 328 | if ( it->second.handshake ) |
---|
| 329 | { |
---|
| 330 | if ( it->second.handshake->completed() ) |
---|
| 331 | { |
---|
| 332 | if ( it->second.handshake->ok() ) |
---|
| 333 | { |
---|
| 334 | if ( type != NET_SERVER ) |
---|
| 335 | { |
---|
| 336 | SharedNetworkData::getInstance()->setHostID( it->second.handshake->getHostId() ); |
---|
| 337 | myHostId = SharedNetworkData::getInstance()->getHostID(); |
---|
[6695] | 338 | |
---|
[7565] | 339 | this->networkGameManager = NetworkGameManager::getInstance(); |
---|
| 340 | this->networkGameManager->setUniqueID( it->second.handshake->getNetworkGameManagerId() ); |
---|
[7681] | 341 | MessageManager::getInstance()->setUniqueID( it->second.handshake->getMessageManagerId() ); |
---|
[7773] | 342 | } |
---|
[7792] | 343 | else |
---|
| 344 | handleNewClient( it->second.userId ); |
---|
[6695] | 345 | |
---|
[7778] | 346 | PRINT(0)("handshake finished id=%d\n", it->second.handshake->getNetworkGameManagerId()); |
---|
[6695] | 347 | |
---|
[7565] | 348 | delete it->second.handshake; |
---|
| 349 | it->second.handshake = NULL; |
---|
[7792] | 350 | |
---|
[7565] | 351 | } |
---|
| 352 | else |
---|
| 353 | { |
---|
[7778] | 354 | PRINT(1)("handshake failed!\n"); |
---|
[7565] | 355 | it->second.socket->disconnectServer(); |
---|
| 356 | } |
---|
| 357 | } |
---|
| 358 | } |
---|
| 359 | } |
---|
| 360 | } |
---|
[6695] | 361 | |
---|
[7565] | 362 | /** |
---|
| 363 | * handle upstream network traffic |
---|
| 364 | */ |
---|
| 365 | void NetworkStream::handleUpstream( ) |
---|
| 366 | { |
---|
| 367 | byte buf[UDP_PACKET_SIZE]; |
---|
| 368 | int offset; |
---|
| 369 | int n; |
---|
| 370 | |
---|
| 371 | for ( PeerList::iterator peer = peers.begin(); peer != peers.end(); peer++ ) |
---|
| 372 | { |
---|
| 373 | offset = INTSIZE; //make already space for length |
---|
| 374 | |
---|
[7575] | 375 | if ( !peer->second.socket ) |
---|
[7565] | 376 | continue; |
---|
| 377 | |
---|
| 378 | n = Converter::intToByteArray( currentState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 379 | assert( n == INTSIZE ); |
---|
| 380 | offset += n; |
---|
| 381 | |
---|
| 382 | n = Converter::intToByteArray( peer->second.lastAckedState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 383 | assert( n == INTSIZE ); |
---|
| 384 | offset += n; |
---|
| 385 | |
---|
| 386 | n = Converter::intToByteArray( peer->second.lastRecvedState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 387 | assert( n == INTSIZE ); |
---|
| 388 | offset += n; |
---|
| 389 | |
---|
| 390 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
| 391 | { |
---|
[7804] | 392 | PRINTF(0)("offset: %d\n", offset); |
---|
[7802] | 393 | int oldOffset = offset; |
---|
[7565] | 394 | Synchronizeable & sync = **it; |
---|
[7591] | 395 | |
---|
[7575] | 396 | if ( !sync.beSynchronized() || sync.getUniqueID() < 0 ) |
---|
| 397 | continue; |
---|
| 398 | |
---|
| 399 | //if handshake not finished only sync handshake |
---|
| 400 | if ( peer->second.handshake && sync.getLeafClassID() != CL_HANDSHAKE ) |
---|
| 401 | continue; |
---|
[7591] | 402 | |
---|
| 403 | if ( isServer() && sync.getLeafClassID() == CL_HANDSHAKE && sync.getUniqueID() != peer->second.userId ) |
---|
| 404 | continue; |
---|
[7614] | 405 | |
---|
| 406 | //do not sync null parent |
---|
| 407 | if ( sync.getLeafClassID() == CL_NULL_PARENT ) |
---|
| 408 | continue; |
---|
[7575] | 409 | |
---|
[7565] | 410 | assert( offset + INTSIZE <= UDP_PACKET_SIZE ); |
---|
| 411 | |
---|
[7575] | 412 | //server fakes uniqueid=0 for handshake |
---|
| 413 | if ( this->isServer() && sync.getUniqueID() < MAX_CONNECTIONS - 1 ) |
---|
| 414 | n = Converter::intToByteArray( 0, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 415 | else |
---|
| 416 | n = Converter::intToByteArray( sync.getUniqueID(), buf + offset, UDP_PACKET_SIZE - offset ); |
---|
[7565] | 417 | assert( n == INTSIZE ); |
---|
| 418 | offset += n; |
---|
| 419 | |
---|
[7602] | 420 | //make space for size |
---|
| 421 | offset += INTSIZE; |
---|
[7614] | 422 | |
---|
[7731] | 423 | n = sync.getStateDiff( peer->second.userId, buf + offset, UDP_PACKET_SIZE-offset, currentState, peer->second.lastAckedState, -1000 ); |
---|
[7602] | 424 | offset += n; |
---|
| 425 | |
---|
[7614] | 426 | assert( Converter::intToByteArray( n, buf + offset - n - INTSIZE, INTSIZE ) == INTSIZE ); |
---|
[7800] | 427 | |
---|
| 428 | //check if all bytes == 0 -> remove data |
---|
| 429 | bool allZero = true; |
---|
| 430 | for ( int i = offset - n; i < offset; i++ ) |
---|
| 431 | { |
---|
| 432 | if ( buf[i] != 0 ) |
---|
| 433 | allZero = false; |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | if ( allZero ) |
---|
| 437 | { |
---|
| 438 | NETPRINTF(n)("REMOVE ZERO DIFF: %s (%d)\n", sync.getClassName(), sync.getUniqueID()); |
---|
[7803] | 439 | offset = oldOffset; |
---|
[7800] | 440 | } |
---|
| 441 | |
---|
[7565] | 442 | } |
---|
| 443 | |
---|
| 444 | assert( Converter::intToByteArray( offset, buf, INTSIZE ) == INTSIZE ); |
---|
| 445 | |
---|
| 446 | assert( peer->second.socket->writePacket( buf, offset ) ); |
---|
[7767] | 447 | |
---|
[7778] | 448 | peer->second.connectionMonitor->processUnzippedOutgoingPacket( buf, offset, currentState ); |
---|
[7777] | 449 | |
---|
[7804] | 450 | assert( offset != 142 ); |
---|
[7752] | 451 | NETPRINTF(n)("send packet: %d userId = %d\n", offset, peer->second.userId); |
---|
[7565] | 452 | } |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | /** |
---|
| 456 | * handle downstream network traffic |
---|
| 457 | */ |
---|
| 458 | void NetworkStream::handleDownstream( ) |
---|
| 459 | { |
---|
| 460 | byte buf[UDP_PACKET_SIZE]; |
---|
| 461 | int offset = 0; |
---|
| 462 | |
---|
| 463 | int length = 0; |
---|
| 464 | int packetLength = 0; |
---|
| 465 | int uniqueId = 0; |
---|
| 466 | int state = 0; |
---|
| 467 | int ackedState = 0; |
---|
| 468 | int fromState = 0; |
---|
[7602] | 469 | int syncDataLength = 0; |
---|
[7565] | 470 | |
---|
| 471 | for ( PeerList::iterator peer = peers.begin(); peer != peers.end(); peer++ ) |
---|
| 472 | { |
---|
[7614] | 473 | |
---|
[7575] | 474 | if ( !peer->second.socket ) |
---|
| 475 | continue; |
---|
| 476 | |
---|
[7681] | 477 | while ( 0 < (packetLength = peer->second.socket->readPacket( buf, UDP_PACKET_SIZE )) ) |
---|
[7659] | 478 | { |
---|
[7804] | 479 | PRINTF(0)("offset: %d\n", offset); |
---|
[7659] | 480 | if ( packetLength < 4*INTSIZE ) |
---|
| 481 | { |
---|
| 482 | if ( packetLength != 0 ) |
---|
| 483 | PRINTF(1)("got too small packet: %d\n", packetLength); |
---|
| 484 | continue; |
---|
| 485 | } |
---|
[7565] | 486 | |
---|
[7659] | 487 | assert( Converter::byteArrayToInt( buf, &length ) == INTSIZE ); |
---|
| 488 | assert( Converter::byteArrayToInt( buf + INTSIZE, &state ) == INTSIZE ); |
---|
| 489 | assert( Converter::byteArrayToInt( buf + 2*INTSIZE, &fromState ) == INTSIZE ); |
---|
| 490 | assert( Converter::byteArrayToInt( buf + 3*INTSIZE, &ackedState ) == INTSIZE ); |
---|
[7752] | 491 | NETPRINTF(n)("ackedstate: %d\n", ackedState); |
---|
[7659] | 492 | offset = 4*INTSIZE; |
---|
[7575] | 493 | |
---|
[7752] | 494 | NETPRINTF(n)("got packet: %d, %d\n", length, packetLength); |
---|
[7565] | 495 | |
---|
| 496 | //if this is an old state drop it |
---|
[7659] | 497 | if ( state <= peer->second.lastRecvedState ) |
---|
| 498 | continue; |
---|
[7565] | 499 | |
---|
[7659] | 500 | if ( packetLength != length ) |
---|
| 501 | { |
---|
| 502 | PRINTF(1)("real packet length (%d) and transmitted packet length (%d) do not match!\n", packetLength, length); |
---|
| 503 | peer->second.socket->disconnectServer(); |
---|
| 504 | continue; |
---|
| 505 | } |
---|
[7731] | 506 | |
---|
[7803] | 507 | while ( offset + 2*INTSIZE < length ) |
---|
[7659] | 508 | { |
---|
[7803] | 509 | NETPRINTF(n)("%d\n", length - offset); |
---|
[7659] | 510 | assert( Converter::byteArrayToInt( buf + offset, &uniqueId ) == INTSIZE ); |
---|
| 511 | offset += INTSIZE; |
---|
[7565] | 512 | |
---|
[7659] | 513 | assert( Converter::byteArrayToInt( buf + offset, &syncDataLength ) == INTSIZE ); |
---|
| 514 | offset += INTSIZE; |
---|
[7602] | 515 | |
---|
[7659] | 516 | Synchronizeable * sync = NULL; |
---|
[7731] | 517 | |
---|
[7659] | 518 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
| 519 | { |
---|
[7575] | 520 | // client thinks his handshake has id 0!!!!! |
---|
[7659] | 521 | if ( (*it)->getUniqueID() == uniqueId || ( uniqueId == 0 && (*it)->getUniqueID() == peer->second.userId ) ) |
---|
| 522 | { |
---|
| 523 | sync = *it; |
---|
| 524 | break; |
---|
| 525 | } |
---|
[7565] | 526 | } |
---|
[7731] | 527 | |
---|
[7659] | 528 | if ( sync == NULL ) |
---|
[7602] | 529 | { |
---|
[7792] | 530 | PRINTF(0)("could not find sync with id %d. try to create it\n", uniqueId); |
---|
[7659] | 531 | if ( oldSynchronizeables.find( uniqueId ) != oldSynchronizeables.end() ) |
---|
| 532 | { |
---|
| 533 | offset += syncDataLength; |
---|
| 534 | continue; |
---|
| 535 | } |
---|
[7731] | 536 | |
---|
[7767] | 537 | if ( !peers[peer->second.userId].isServer ) |
---|
| 538 | { |
---|
| 539 | offset += syncDataLength; |
---|
| 540 | continue; |
---|
| 541 | } |
---|
| 542 | |
---|
[7659] | 543 | int leafClassId; |
---|
| 544 | if ( INTSIZE > length - offset ) |
---|
| 545 | { |
---|
| 546 | offset += syncDataLength; |
---|
| 547 | continue; |
---|
| 548 | } |
---|
[7731] | 549 | |
---|
[7659] | 550 | Converter::byteArrayToInt( buf + offset, &leafClassId ); |
---|
[7792] | 551 | |
---|
| 552 | assert( leafClassId != 0 ); |
---|
[7565] | 553 | |
---|
[7792] | 554 | BaseObject * b = NULL; |
---|
[7659] | 555 | /* These are some small exeptions in creation: Not all objects can/should be created via Factory */ |
---|
| 556 | /* Exception 1: NullParent */ |
---|
[7792] | 557 | if( leafClassId == CL_NULL_PARENT || leafClassId == CL_SYNCHRONIZEABLE || leafClassId == CL_NETWORK_GAME_MANAGER ) |
---|
[7659] | 558 | { |
---|
| 559 | PRINTF(1)("Can not create Class with ID %x!\n", (int)leafClassId); |
---|
| 560 | offset += syncDataLength; |
---|
| 561 | continue; |
---|
| 562 | } |
---|
| 563 | else |
---|
| 564 | b = Factory::fabricate( (ClassID)leafClassId ); |
---|
[7565] | 565 | |
---|
[7659] | 566 | if ( !b ) |
---|
| 567 | { |
---|
| 568 | PRINTF(1)("Could not fabricate Object with classID %x\n", leafClassId); |
---|
| 569 | offset += syncDataLength; |
---|
| 570 | continue; |
---|
| 571 | } |
---|
[7731] | 572 | |
---|
[7659] | 573 | if ( b->isA(CL_SYNCHRONIZEABLE) ) |
---|
| 574 | { |
---|
| 575 | sync = dynamic_cast<Synchronizeable*>(b); |
---|
| 576 | sync->setUniqueID( uniqueId ); |
---|
| 577 | sync->setSynchronized(true); |
---|
[7565] | 578 | |
---|
[7659] | 579 | PRINTF(0)("Fabricated %s with id %d\n", sync->getClassName(), sync->getUniqueID()); |
---|
| 580 | } |
---|
| 581 | else |
---|
| 582 | { |
---|
| 583 | PRINTF(1)("Class with ID %x is not a synchronizeable!\n", (int)leafClassId); |
---|
| 584 | delete b; |
---|
| 585 | offset += syncDataLength; |
---|
| 586 | continue; |
---|
| 587 | } |
---|
[7565] | 588 | } |
---|
[7659] | 589 | |
---|
[7731] | 590 | offset += sync->setStateDiff( peer->second.userId, buf+offset, syncDataLength, state, fromState ); |
---|
[7565] | 591 | } |
---|
[7731] | 592 | |
---|
[7659] | 593 | if ( offset != length ) |
---|
| 594 | { |
---|
[7731] | 595 | PRINTF(0)("offset (%d) != length (%d)\n", offset, length); |
---|
[7659] | 596 | peer->second.socket->disconnectServer(); |
---|
| 597 | } |
---|
[7731] | 598 | |
---|
[7778] | 599 | peer->second.connectionMonitor->processUnzippedIncomingPacket( buf, offset, currentState, ackedState ); |
---|
[7659] | 600 | |
---|
| 601 | peer->second.lastAckedState = ackedState; |
---|
[7792] | 602 | |
---|
[7731] | 603 | peer->second.lastRecvedState = state; |
---|
| 604 | |
---|
[7565] | 605 | } |
---|
[7659] | 606 | |
---|
[7565] | 607 | } |
---|
[7614] | 608 | |
---|
[7565] | 609 | } |
---|
| 610 | |
---|
[7671] | 611 | /** |
---|
| 612 | * is executed when a handshake has finished |
---|
| 613 | * @todo create playable for new user |
---|
| 614 | */ |
---|
| 615 | void NetworkStream::handleNewClient( int userId ) |
---|
| 616 | { |
---|
| 617 | MessageManager::getInstance()->initUser( userId ); |
---|
[7693] | 618 | |
---|
| 619 | networkGameManager->signalNewPlayer( userId ); |
---|
[7671] | 620 | } |
---|
[7565] | 621 | |
---|
[7767] | 622 | /** |
---|
| 623 | * removes old items from oldSynchronizeables |
---|
| 624 | */ |
---|
| 625 | void NetworkStream::cleanUpOldSyncList( ) |
---|
| 626 | { |
---|
| 627 | int now = SDL_GetTicks(); |
---|
| 628 | |
---|
| 629 | for ( std::map<int,int>::iterator it = oldSynchronizeables.begin(); it != oldSynchronizeables.end(); ) |
---|
| 630 | { |
---|
| 631 | if ( it->second < now - 10*1000 ) |
---|
| 632 | { |
---|
| 633 | std::map<int,int>::iterator delIt = it; |
---|
| 634 | it++; |
---|
| 635 | oldSynchronizeables.erase( delIt ); |
---|
| 636 | continue; |
---|
| 637 | } |
---|
| 638 | it++; |
---|
| 639 | } |
---|
| 640 | } |
---|
[7565] | 641 | |
---|
| 642 | |
---|
| 643 | |
---|
| 644 | |
---|
[7671] | 645 | |
---|
[7767] | 646 | |
---|