[5566] | 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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[5601] | 12 | main-programmer: claudio |
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[5800] | 13 | co-programmer: |
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[5566] | 14 | */ |
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| 15 | |
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| 16 | |
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| 17 | /* this is for debug output. It just says, that all calls to PRINT() belong to the DEBUG_MODULE_NETWORK module |
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| 18 | For more information refere to https://www.orxonox.net/cgi-bin/trac.cgi/wiki/DebugOutput |
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| 19 | */ |
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| 20 | #define DEBUG_MODULE_NETWORK |
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| 21 | |
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[5747] | 22 | |
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[5647] | 23 | #include "base_object.h" |
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[5731] | 24 | #include "network_protocol.h" |
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[5647] | 25 | #include "network_socket.h" |
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| 26 | #include "connection_monitor.h" |
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| 27 | #include "synchronizeable.h" |
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[6139] | 28 | #include "network_manager.h" |
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[6341] | 29 | #include "network_game_manager.h" |
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| 30 | |
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[5649] | 31 | #include "debug.h" |
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[6139] | 32 | #include "class_list.h" |
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[6144] | 33 | #include <algorithm> |
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[5647] | 34 | |
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[5566] | 35 | /* include your own header */ |
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| 36 | #include "network_stream.h" |
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| 37 | |
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[5595] | 38 | /* probably unnecessary */ |
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[5594] | 39 | using namespace std; |
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| 40 | |
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[5595] | 41 | |
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[5747] | 42 | #define PACKAGE_SIZE 256 |
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[5647] | 43 | |
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[5747] | 44 | |
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[5800] | 45 | NetworkStream::NetworkStream() |
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[5996] | 46 | : DataStream() |
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[5647] | 47 | { |
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| 48 | this->init(); |
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[5648] | 49 | /* initialize the references */ |
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[5996] | 50 | this->type = NET_CLIENT; |
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[5741] | 51 | this->networkProtocol = new NetworkProtocol(); |
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[5648] | 52 | this->connectionMonitor = new ConnectionMonitor(); |
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[5647] | 53 | } |
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| 54 | |
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[6139] | 55 | NetworkStream::NetworkStream(IPaddress& address) |
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[5996] | 56 | { |
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[6139] | 57 | this->type = NET_CLIENT; |
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[5996] | 58 | this->init(); |
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[6139] | 59 | this->networkSockets.push_back(new NetworkSocket(address)); |
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[5996] | 60 | this->networkProtocol = new NetworkProtocol(); |
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| 61 | this->connectionMonitor = new ConnectionMonitor(); |
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[5647] | 62 | |
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[6139] | 63 | Handshake* hs = new Handshake(false); |
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| 64 | hs->setUniqueID( 0 ); |
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| 65 | this->handshakes.push_back(hs); |
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| 66 | this->connectSynchronizeable(*hs); |
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| 67 | PRINTF(0)("NetworkStream: %s\n", hs->getName()); |
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[6341] | 68 | this->maxConnections = 1; |
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[5996] | 69 | } |
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| 70 | |
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| 71 | |
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[6139] | 72 | NetworkStream::NetworkStream(unsigned int port) |
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[5647] | 73 | { |
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[6139] | 74 | this->type = NET_SERVER; |
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[5647] | 75 | this->init(); |
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[6139] | 76 | this->serverSocket = new ServerSocket(port); |
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[5741] | 77 | this->networkProtocol = new NetworkProtocol(); |
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| 78 | this->connectionMonitor = new ConnectionMonitor(); |
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[6139] | 79 | this->networkSockets.push_back( NULL ); |
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| 80 | this->handshakes.push_back( NULL ); |
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[5996] | 81 | this->bActive = true; |
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[6341] | 82 | this->networkGameManager = NetworkGameManager::getInstance(); |
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| 83 | // setUniqueID( maxCon+2 ) because we need one id for every handshake |
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| 84 | // and one for handshake to reject client maxCon+1 |
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| 85 | this->networkGameManager->setUniqueID( this->maxConnections+2 ); |
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| 86 | this->connectSynchronizeable( *(this->networkGameManager) ); |
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[5607] | 87 | |
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[6139] | 88 | this->setMaxConnections( 10 ); |
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[5649] | 89 | } |
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| 90 | |
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| 91 | |
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[5647] | 92 | void NetworkStream::init() |
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| 93 | { |
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| 94 | /* set the class id for the base object */ |
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| 95 | this->setClassID(CL_NETWORK_STREAM, "NetworkStream"); |
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[5996] | 96 | this->bActive = false; |
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[6139] | 97 | this->serverSocket = NULL; |
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[6341] | 98 | this->networkGameManager = NULL; |
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[6139] | 99 | myHostId = 0; |
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[5594] | 100 | } |
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| 101 | |
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[5647] | 102 | |
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[5566] | 103 | NetworkStream::~NetworkStream() |
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[5598] | 104 | { |
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[6139] | 105 | if ( this->serverSocket ) |
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| 106 | { |
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| 107 | serverSocket->close(); |
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| 108 | delete serverSocket; |
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| 109 | } |
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[5723] | 110 | |
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[6139] | 111 | for (NetworkSocketVector::iterator i = networkSockets.begin(); i!=networkSockets.end(); i++) |
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| 112 | { |
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| 113 | if ( *i ) |
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| 114 | { |
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| 115 | (*i)->disconnectServer(); |
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| 116 | (*i)->destroy(); |
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| 117 | } |
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| 118 | } |
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[5723] | 119 | |
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[6139] | 120 | for (HandshakeVector::iterator i = handshakes.begin(); i!=handshakes.end(); i++) |
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| 121 | { |
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| 122 | if ( *i ) |
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| 123 | { |
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| 124 | delete (*i); |
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| 125 | } |
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| 126 | } |
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[5805] | 127 | |
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[5996] | 128 | delete connectionMonitor; |
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| 129 | delete networkProtocol; |
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[5598] | 130 | } |
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| 131 | |
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[5996] | 132 | |
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| 133 | void NetworkStream::connectSynchronizeable(Synchronizeable& sync) |
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| 134 | { |
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[6139] | 135 | this->synchronizeables.push_back(&sync); |
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| 136 | sync.setNetworkStream( this ); |
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| 137 | |
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| 138 | if( this->networkSockets.size()>0 ) |
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[5996] | 139 | this->bActive = true; |
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| 140 | } |
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| 141 | |
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[6139] | 142 | void NetworkStream::disconnectSynchronizeable(Synchronizeable& sync) |
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| 143 | { |
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[6144] | 144 | // removing the Synchronizeable from the List. |
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| 145 | std::list<Synchronizeable*>::iterator disconnectSynchro = std::find(this->synchronizeables.begin(), this->synchronizeables.end(), &sync); |
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| 146 | if (disconnectSynchro != this->synchronizeables.end()) |
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| 147 | this->synchronizeables.erase(disconnectSynchro); |
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[5996] | 148 | |
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[6139] | 149 | if( this->networkSockets.size()<=0 ) |
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| 150 | this->bActive = false; |
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| 151 | } |
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| 152 | |
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| 153 | |
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[5604] | 154 | void NetworkStream::processData() |
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| 155 | { |
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[6139] | 156 | if ( this->type == NET_SERVER ) |
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| 157 | this->updateConnectionList(); |
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| 158 | else |
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| 159 | { |
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| 160 | if ( networkSockets[0] && !networkSockets[0]->isOk() ) |
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| 161 | { |
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| 162 | PRINTF(1)("lost connection to server\n"); |
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[5741] | 163 | |
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[6139] | 164 | //delete networkSockets[i]; |
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| 165 | networkSockets[0]->disconnectServer(); |
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| 166 | networkSockets[0]->destroy(); |
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| 167 | networkSockets[0] = NULL; |
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[6483] | 168 | |
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[6139] | 169 | if ( handshakes[0] ) |
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| 170 | delete handshakes[0]; |
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| 171 | handshakes[0] = NULL; |
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| 172 | } |
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| 173 | } |
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| 174 | |
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| 175 | for (int i = 0; i<handshakes.size(); i++) |
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| 176 | { |
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| 177 | if ( handshakes[i] ) |
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| 178 | { |
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| 179 | if ( handshakes[i]->completed() ) |
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| 180 | { |
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| 181 | if ( handshakes[i]->ok() ) |
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| 182 | { |
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| 183 | if ( type != NET_SERVER ) |
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| 184 | { |
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| 185 | NetworkManager::getInstance()->setHostID( handshakes[i]->getHostId() ); |
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| 186 | myHostId = NetworkManager::getInstance()->getHostID(); |
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[6341] | 187 | |
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| 188 | this->networkGameManager = NetworkGameManager::getInstance(); |
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| 189 | this->networkGameManager->setUniqueID( handshakes[i]->getNetworkGameManagerId() ); |
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| 190 | this->connectSynchronizeable( *(this->networkGameManager) ); |
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[6139] | 191 | } |
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[6341] | 192 | else |
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| 193 | { |
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| 194 | //this->networkGameManager->sendEntityList( i ); |
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| 195 | } |
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| 196 | PRINT(0)("handshake finished id=%d\n", handshakes[i]->getNetworkGameManagerId()); |
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| 197 | |
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| 198 | |
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[6139] | 199 | delete handshakes[i]; |
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| 200 | handshakes[i] = NULL; |
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| 201 | } |
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| 202 | else |
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| 203 | { |
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| 204 | PRINT(1)("handshake failed!\n"); |
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| 205 | networkSockets[i]->disconnectServer(); |
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| 206 | delete handshakes[i]; |
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| 207 | handshakes[i] = NULL; |
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| 208 | //TODO: handle error |
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| 209 | } |
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| 210 | } |
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| 211 | } |
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| 212 | } |
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| 213 | |
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| 214 | |
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[5650] | 215 | /* DOWNSTREAM */ |
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[5800] | 216 | |
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[6139] | 217 | int dataLength; |
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| 218 | int reciever; |
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| 219 | Header header; |
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| 220 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
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[5996] | 221 | { |
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[6341] | 222 | if ( (*it)!=NULL /*&& (*it)->getOwner() == myHostId*/ ) |
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[6139] | 223 | { |
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| 224 | do { |
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| 225 | reciever = 0; |
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| 226 | dataLength = (*it)->readBytes(downBuffer, DATA_STREAM_BUFFER_SIZE, &reciever); |
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[5730] | 227 | |
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[5800] | 228 | |
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[6139] | 229 | if ( dataLength<=0 ){ |
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| 230 | reciever = 0; |
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| 231 | continue; |
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| 232 | } |
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| 233 | |
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| 234 | dataLength = networkProtocol->createHeader((byte*)downBuffer, dataLength, DATA_STREAM_BUFFER_SIZE, static_cast<const Synchronizeable&>(*(*it))); |
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| 235 | |
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| 236 | Header* header = (Header*)downBuffer; |
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[6341] | 237 | if ( header->synchronizeableID < this->maxConnections+2 ) |
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| 238 | { |
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| 239 | //if ( !isServer() ) PRINTF(0)("RESET UNIQUEID FROM %d TO 0 maxCon=%d\n", header->synchronizeableID, this->maxConnections); |
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[6139] | 240 | header->synchronizeableID = 0; |
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[6341] | 241 | } |
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| 242 | else |
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| 243 | { |
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| 244 | //if ( !isServer() ) PRINTF(0)("UNIQUEID=%d\n", header->synchronizeableID); |
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| 245 | } |
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[6139] | 246 | |
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| 247 | if ( dataLength<=0 ) |
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| 248 | continue; |
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| 249 | |
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| 250 | if ( reciever!=0 ) |
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| 251 | { |
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| 252 | if ( networkSockets[reciever] != NULL ) |
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| 253 | { |
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[6483] | 254 | PRINTF(5)("write %d bytes to socket %d\n", dataLength, reciever); |
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[6139] | 255 | networkSockets[reciever]->writePacket(downBuffer, dataLength); |
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| 256 | } |
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| 257 | else |
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| 258 | { |
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| 259 | PRINTF(1)("networkSockets[reciever] == NULL\n"); |
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| 260 | } |
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| 261 | } |
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| 262 | else |
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| 263 | { |
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| 264 | for ( int i = 0; i<networkSockets.size(); i++) |
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| 265 | { |
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| 266 | if ( networkSockets[i] != NULL ) |
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| 267 | { |
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[6483] | 268 | PRINTF(5)("write %d bytes to socket %d\n", dataLength, reciever); |
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[6139] | 269 | networkSockets[i]->writePacket(downBuffer, dataLength); |
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| 270 | } |
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| 271 | } |
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| 272 | } |
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| 273 | |
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| 274 | } while( reciever!=0 ); |
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| 275 | } |
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[5996] | 276 | } |
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[5741] | 277 | |
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| 278 | /* UPSTREAM */ |
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[5809] | 279 | |
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[6139] | 280 | for ( int i = 0; i<networkSockets.size(); i++) |
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[5802] | 281 | { |
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[6139] | 282 | if ( networkSockets[i] ) |
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[5810] | 283 | { |
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[6139] | 284 | do { |
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| 285 | dataLength = networkSockets[i]->readPacket(upBuffer, DATA_STREAM_BUFFER_SIZE); |
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[5730] | 286 | |
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[6139] | 287 | if ( dataLength<=0 ) |
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| 288 | continue; |
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| 289 | |
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| 290 | header = networkProtocol->extractHeader(upBuffer, dataLength); |
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| 291 | dataLength -= sizeof(header); |
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| 292 | |
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[6469] | 293 | PRINTF(5)("read %d bytes from socket uniqueID = %d\n", dataLength, header.synchronizeableID); |
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[6341] | 294 | |
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[6139] | 295 | if ( dataLength != header.length ) |
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| 296 | { |
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| 297 | PRINTF(1)("packetsize in header and real packetsize do not match! %d:%d\n", dataLength, header.length); |
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| 298 | continue; |
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| 299 | } |
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| 300 | |
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| 301 | if ( header.synchronizeableID == 0 ) |
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| 302 | { |
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| 303 | header.synchronizeableID = i; |
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| 304 | } |
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| 305 | |
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| 306 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
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| 307 | { |
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| 308 | if ( *it && (*it)->getUniqueID()==header.synchronizeableID ) |
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[6341] | 309 | { |
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| 310 | if ( (*it)->writeBytes(upBuffer+sizeof(header), dataLength, i) != header.length ) |
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| 311 | { |
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| 312 | PRINTF(1)("%s did not read all the data!\n", (*it)->getClassName()); |
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| 313 | break; |
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| 314 | } |
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| 315 | continue; |
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| 316 | } |
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[6139] | 317 | } |
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| 318 | |
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| 319 | } while ( dataLength>0 ); |
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[5810] | 320 | } |
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| 321 | } |
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[6139] | 322 | } |
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| 323 | |
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| 324 | void NetworkStream::updateConnectionList( ) |
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| 325 | { |
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| 326 | //check for new connections |
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| 327 | |
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| 328 | NetworkSocket* tempNetworkSocket = serverSocket->getNewSocket(); |
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| 329 | |
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| 330 | if ( tempNetworkSocket ) |
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[5810] | 331 | { |
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[6139] | 332 | int clientId; |
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| 333 | if ( freeSocketSlots.size() >0 ) |
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[5810] | 334 | { |
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[6139] | 335 | clientId = freeSocketSlots.back(); |
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| 336 | freeSocketSlots.pop_back(); |
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| 337 | networkSockets[clientId] = tempNetworkSocket; |
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[6341] | 338 | handshakes[clientId] = new Handshake(true, clientId, this->networkGameManager->getUniqueID()); |
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[6139] | 339 | handshakes[clientId]->setUniqueID(clientId); |
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| 340 | } else |
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| 341 | { |
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| 342 | clientId = networkSockets.size(); |
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| 343 | networkSockets.push_back(tempNetworkSocket); |
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[6341] | 344 | Handshake* tHs = new Handshake(true, clientId, this->networkGameManager->getUniqueID()); |
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[6139] | 345 | tHs->setUniqueID(clientId); |
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| 346 | handshakes.push_back(tHs); |
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| 347 | } |
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[5730] | 348 | |
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[6139] | 349 | if ( clientId > this->maxConnections ) |
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| 350 | { |
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| 351 | handshakes[clientId]->doReject(); |
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| 352 | PRINTF(0)("Will reject client %d because there are to many connections!\n", clientId); |
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[5810] | 353 | } |
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[6139] | 354 | else |
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| 355 | |
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| 356 | PRINTF(0)("New Client: %d\n", clientId); |
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| 357 | |
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| 358 | this->connectSynchronizeable(*handshakes[clientId]); |
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[5802] | 359 | } |
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[5800] | 360 | |
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[5809] | 361 | |
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[6139] | 362 | //check if connections are ok else remove them |
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| 363 | for ( int i = 1; i<networkSockets.size(); i++) |
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| 364 | { |
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| 365 | if ( networkSockets[i] && !networkSockets[i]->isOk() ) |
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| 366 | { |
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| 367 | //TODO: tell EntityManager that this player left the game |
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| 368 | PRINTF(0)("Client is gone: %d\n", i); |
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| 369 | |
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| 370 | //delete networkSockets[i]; |
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| 371 | networkSockets[i]->disconnectServer(); |
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| 372 | networkSockets[i]->destroy(); |
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| 373 | networkSockets[i] = NULL; |
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[6483] | 374 | |
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[6139] | 375 | if ( handshakes[i] ) |
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| 376 | delete handshakes[i]; |
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| 377 | handshakes[i] = NULL; |
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| 378 | |
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| 379 | if ( i == networkSockets.size()-1 ) |
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| 380 | { |
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| 381 | networkSockets.pop_back(); |
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| 382 | handshakes.pop_back(); |
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| 383 | } |
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| 384 | else |
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| 385 | { |
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| 386 | freeSocketSlots.push_back(i); |
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| 387 | } |
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| 388 | } |
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| 389 | } |
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| 390 | |
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| 391 | |
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[5604] | 392 | } |
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[6139] | 393 | |
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| 394 | void NetworkStream::setMaxConnections( int n ) |
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| 395 | { |
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| 396 | if ( !this->isServer() ) |
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| 397 | { |
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| 398 | PRINTF(1)("Cannot set maxConnections because I am no server.\n"); |
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| 399 | } |
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| 400 | if ( this->networkSockets.size() > 1 ) |
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| 401 | { |
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| 402 | PRINTF(1)("Cannot set maxConnections because there are already %d connections.\n", this->networkSockets.size()); |
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| 403 | return; |
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| 404 | } |
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[6341] | 405 | |
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| 406 | if ( n > MAX_CONNECTIONS ) |
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| 407 | { |
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| 408 | PRINTF(1)("Cannot set maxConnectiosn to %d because of hardcoded limit %d\n", n, MAX_CONNECTIONS); |
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| 409 | return; |
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| 410 | } |
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| 411 | |
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[6139] | 412 | this->maxConnections = n; |
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[6341] | 413 | this->networkGameManager->setUniqueID( n+2 ); |
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[6139] | 414 | } |
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| 415 | |
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| 416 | |
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