[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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[9246] | 12 | main-programmer: Christoph Renner rennerc@ee.ethz.ch |
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| 13 | co-programmer: Patrick Boenzli boenzlip@orxonox.ethz.ch |
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[9252] | 14 | |
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| 15 | June 2006: finishing work on the network stream for pps presentation (rennerc@ee.ethz.ch) |
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| 16 | July 2006: some code rearangement and integration of the proxy server mechanism (boenzlip@ee.ethz.ch) |
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[5566] | 17 | */ |
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| 18 | |
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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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[7954] | 25 | #include "udp_socket.h" |
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| 26 | #include "udp_server_socket.h" |
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[9275] | 27 | #include "monitor/connection_monitor.h" |
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| 28 | #include "monitor/network_monitor.h" |
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[5647] | 29 | #include "synchronizeable.h" |
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[6341] | 30 | #include "network_game_manager.h" |
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[6959] | 31 | #include "shared_network_data.h" |
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[7954] | 32 | #include "message_manager.h" |
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| 33 | #include "preferences.h" |
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| 34 | #include "zip.h" |
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[6341] | 35 | |
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[7954] | 36 | #include "src/lib/util/loading/resource_manager.h" |
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| 37 | |
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| 38 | #include "network_log.h" |
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| 39 | |
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[9235] | 40 | #include "player_stats.h" |
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[7954] | 41 | |
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| 42 | #include "lib/util/loading/factory.h" |
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| 43 | |
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[5649] | 44 | #include "debug.h" |
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[6139] | 45 | #include "class_list.h" |
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[6144] | 46 | #include <algorithm> |
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[5647] | 47 | |
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[9268] | 48 | |
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[5566] | 49 | #include "network_stream.h" |
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| 50 | |
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[9268] | 51 | |
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[5594] | 52 | using namespace std; |
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| 53 | |
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[5595] | 54 | |
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[5747] | 55 | #define PACKAGE_SIZE 256 |
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[5647] | 56 | |
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[5747] | 57 | |
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[9248] | 58 | /** |
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| 59 | * empty constructor |
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| 60 | */ |
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[5800] | 61 | NetworkStream::NetworkStream() |
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[5996] | 62 | : DataStream() |
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[5647] | 63 | { |
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| 64 | this->init(); |
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[5648] | 65 | /* initialize the references */ |
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[9285] | 66 | this->pInfo->nodeType = NET_CLIENT; |
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[5647] | 67 | } |
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| 68 | |
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[6695] | 69 | |
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[9246] | 70 | /** |
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[9248] | 71 | * start as a client, connect to a server |
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[9246] | 72 | * @param host: host name (address) |
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| 73 | * @param port: port number |
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| 74 | */ |
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[7954] | 75 | NetworkStream::NetworkStream( std::string host, int port ) |
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[5996] | 76 | { |
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| 77 | this->init(); |
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[9285] | 78 | // init the peers[0] the server to ceonnect to |
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[7954] | 79 | this->peers[0].socket = new UdpSocket( host, port ); |
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| 80 | this->peers[0].userId = 0; |
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[9282] | 81 | this->peers[0].nodeType = NET_MASTER_SERVER; |
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[7954] | 82 | this->peers[0].connectionMonitor = new ConnectionMonitor( 0 ); |
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[9285] | 83 | // and set also the localhost |
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| 84 | this->pInfo->nodeType = NET_CLIENT; |
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[5996] | 85 | } |
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| 86 | |
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| 87 | |
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[9246] | 88 | /** |
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| 89 | * start as a server |
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| 90 | * @param port: at this port |
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| 91 | */ |
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[7954] | 92 | NetworkStream::NetworkStream( int port ) |
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[5647] | 93 | { |
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| 94 | this->init(); |
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[7954] | 95 | this->serverSocket = new UdpServerSocket(port); |
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[9285] | 96 | this->pInfo->nodeType = NET_MASTER_SERVER; |
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[5649] | 97 | } |
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| 98 | |
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| 99 | |
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[9246] | 100 | /** |
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| 101 | * generic init functions |
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| 102 | */ |
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[5647] | 103 | void NetworkStream::init() |
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| 104 | { |
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| 105 | /* set the class id for the base object */ |
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| 106 | this->setClassID(CL_NETWORK_STREAM, "NetworkStream"); |
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[6139] | 107 | this->serverSocket = NULL; |
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[6341] | 108 | this->networkGameManager = NULL; |
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[9281] | 109 | this->networkMonitor = NULL; |
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[9279] | 110 | |
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[9284] | 111 | this->pInfo = new PeerInfo(); |
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| 112 | this->pInfo->userId = 0; |
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| 113 | this->pInfo->lastAckedState = 0; |
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| 114 | this->pInfo->lastRecvedState = 0; |
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| 115 | |
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[9285] | 116 | |
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[9248] | 117 | this->currentState = 0; |
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[9246] | 118 | |
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[7954] | 119 | remainingBytesToWriteToDict = Preferences::getInstance()->getInt( "compression", "writedict", 0 ); |
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[9246] | 120 | |
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[8623] | 121 | assert( Zip::getInstance()->loadDictionary( "testdict" ) >= 0 ); |
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| 122 | this->dictClient = Zip::getInstance()->loadDictionary( "dict2pl_client" ); |
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| 123 | assert( this->dictClient >= 0 ); |
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| 124 | this->dictServer = Zip::getInstance()->loadDictionary( "dict2p_server" ); |
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| 125 | assert( this->dictServer >= 0 ); |
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[5594] | 126 | } |
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| 127 | |
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[5647] | 128 | |
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[9246] | 129 | /** |
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| 130 | * deconstructor |
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| 131 | */ |
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[5566] | 132 | NetworkStream::~NetworkStream() |
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[5598] | 133 | { |
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[6139] | 134 | if ( this->serverSocket ) |
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| 135 | { |
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| 136 | serverSocket->close(); |
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| 137 | delete serverSocket; |
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[8228] | 138 | serverSocket = NULL; |
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[6139] | 139 | } |
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[7954] | 140 | for ( PeerList::iterator i = peers.begin(); i!=peers.end(); i++) |
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[6139] | 141 | { |
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[7954] | 142 | if ( i->second.socket ) |
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[6139] | 143 | { |
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[7954] | 144 | i->second.socket->disconnectServer(); |
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| 145 | delete i->second.socket; |
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| 146 | i->second.socket = NULL; |
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[6139] | 147 | } |
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[9246] | 148 | |
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[7954] | 149 | if ( i->second.handshake ) |
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[6139] | 150 | { |
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[7954] | 151 | delete i->second.handshake; |
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| 152 | i->second.handshake = NULL; |
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[6139] | 153 | } |
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[9246] | 154 | |
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[8623] | 155 | if ( i->second.connectionMonitor ) |
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| 156 | { |
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| 157 | delete i->second.connectionMonitor; |
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| 158 | i->second.connectionMonitor = NULL; |
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| 159 | } |
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[6139] | 160 | } |
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[8228] | 161 | for ( SynchronizeableList::const_iterator it = getSyncBegin(); it != getSyncEnd(); it ++ ) |
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| 162 | (*it)->setNetworkStream( NULL ); |
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[9284] | 163 | |
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| 164 | if( this->pInfo) |
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| 165 | delete this->pInfo; |
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[5598] | 166 | } |
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| 167 | |
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[5996] | 168 | |
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[9246] | 169 | /** |
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| 170 | * creates a new instance of the network game manager |
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| 171 | */ |
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[6695] | 172 | void NetworkStream::createNetworkGameManager() |
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| 173 | { |
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| 174 | this->networkGameManager = NetworkGameManager::getInstance(); |
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| 175 | // setUniqueID( maxCon+2 ) because we need one id for every handshake |
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| 176 | // and one for handshake to reject client maxCon+1 |
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[7954] | 177 | this->networkGameManager->setUniqueID( SharedNetworkData::getInstance()->getNewUniqueID() ); |
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| 178 | MessageManager::getInstance()->setUniqueID( SharedNetworkData::getInstance()->getNewUniqueID() ); |
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[6695] | 179 | } |
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| 180 | |
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| 181 | |
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[9246] | 182 | /** |
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| 183 | * starts the network handshake |
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| 184 | */ |
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[6695] | 185 | void NetworkStream::startHandshake() |
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| 186 | { |
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[9285] | 187 | Handshake* hs = new Handshake(this->pInfo->nodeType); |
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[6695] | 188 | hs->setUniqueID( 0 ); |
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[7954] | 189 | assert( peers[0].handshake == NULL ); |
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| 190 | peers[0].handshake = hs; |
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[9246] | 191 | |
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[9235] | 192 | hs->setPreferedNickName( Preferences::getInstance()->getString( "multiplayer", "nickname", "Player" ) ); |
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[9296] | 193 | //hs->set |
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[9246] | 194 | |
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[7954] | 195 | // peers[0].handshake->setSynchronized( true ); |
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[6695] | 196 | //this->connectSynchronizeable(*hs); |
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[7954] | 197 | //this->connectSynchronizeable(*hs); |
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| 198 | PRINTF(0)("NetworkStream: Handshake created: %s\n", hs->getName()); |
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[6695] | 199 | } |
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| 200 | |
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| 201 | |
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[9246] | 202 | /** |
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| 203 | * this functions connects a synchronizeable to the networkstream, therefore synchronizeing |
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| 204 | * it all over the network and creating it on the other platforms (if and only if it is a |
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| 205 | * server |
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| 206 | */ |
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[5996] | 207 | void NetworkStream::connectSynchronizeable(Synchronizeable& sync) |
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| 208 | { |
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[6139] | 209 | this->synchronizeables.push_back(&sync); |
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| 210 | sync.setNetworkStream( this ); |
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| 211 | |
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[9254] | 212 | // this->bActive = true; |
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[5996] | 213 | } |
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| 214 | |
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[6695] | 215 | |
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[9246] | 216 | /** |
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| 217 | * removes the synchronizeable from the list of synchronized entities |
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| 218 | */ |
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[6139] | 219 | void NetworkStream::disconnectSynchronizeable(Synchronizeable& sync) |
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| 220 | { |
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[6144] | 221 | // removing the Synchronizeable from the List. |
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| 222 | std::list<Synchronizeable*>::iterator disconnectSynchro = std::find(this->synchronizeables.begin(), this->synchronizeables.end(), &sync); |
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| 223 | if (disconnectSynchro != this->synchronizeables.end()) |
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| 224 | this->synchronizeables.erase(disconnectSynchro); |
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[9246] | 225 | |
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[7954] | 226 | oldSynchronizeables[sync.getUniqueID()] = SDL_GetTicks(); |
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[6139] | 227 | } |
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| 228 | |
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| 229 | |
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[9246] | 230 | /** |
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| 231 | * this is called to process data from the network socket to the synchronizeable and vice versa |
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| 232 | */ |
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[5604] | 233 | void NetworkStream::processData() |
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| 234 | { |
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[9281] | 235 | // create the network monitor after all the init work and before there is any connection handlings |
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| 236 | if( this->networkMonitor == NULL) |
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| 237 | this->networkMonitor = new NetworkMonitor(this); |
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| 238 | |
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| 239 | |
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[8068] | 240 | int tick = SDL_GetTicks(); |
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[9246] | 241 | |
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[9255] | 242 | this->currentState++; |
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| 243 | // there was a wrap around |
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| 244 | if( this->currentState < 0) |
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| 245 | { |
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| 246 | PRINTF(1)("A wrap around in the state variable as occured. The server was running so long? Pls restart server or write a mail to the supporters!\n"); |
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| 247 | } |
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[9246] | 248 | |
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[9285] | 249 | if ( this->pInfo->nodeType == NET_MASTER_SERVER ) |
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[7954] | 250 | { |
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[9255] | 251 | // execute everytthing the master server shoudl do |
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[7954] | 252 | if ( serverSocket ) |
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| 253 | serverSocket->update(); |
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[9246] | 254 | |
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[6139] | 255 | this->updateConnectionList(); |
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[7954] | 256 | } |
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[9285] | 257 | else if( this->pInfo->nodeType == NET_PROXY_SERVER) |
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[9255] | 258 | { |
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| 259 | // execute everything the proxy server should do |
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| 260 | } |
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[6139] | 261 | else |
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| 262 | { |
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[9246] | 263 | // check if the connection is ok else terminate and remove |
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[7954] | 264 | if ( peers[0].socket && ( !peers[0].socket->isOk() || peers[0].connectionMonitor->hasTimedOut() ) ) |
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[6139] | 265 | { |
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| 266 | PRINTF(1)("lost connection to server\n"); |
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[5741] | 267 | |
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[7954] | 268 | peers[0].socket->disconnectServer(); |
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| 269 | delete peers[0].socket; |
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| 270 | peers[0].socket = NULL; |
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[6498] | 271 | |
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[7954] | 272 | if ( peers[0].handshake ) |
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| 273 | delete peers[0].handshake; |
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| 274 | peers[0].handshake = NULL; |
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[9246] | 275 | |
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[8623] | 276 | if ( peers[0].connectionMonitor ) |
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| 277 | delete peers[0].connectionMonitor; |
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| 278 | peers[0].connectionMonitor = NULL; |
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[6139] | 279 | } |
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| 280 | } |
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| 281 | |
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[7954] | 282 | cleanUpOldSyncList(); |
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| 283 | handleHandshakes(); |
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[9246] | 284 | |
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[9280] | 285 | // update the network monitor |
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| 286 | this->networkMonitor->process(); |
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| 287 | |
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[7954] | 288 | // order of up/downstream is important!!!! |
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| 289 | // don't change it |
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[8068] | 290 | handleDownstream( tick ); |
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| 291 | handleUpstream( tick ); |
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[7954] | 292 | } |
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| 293 | |
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[9246] | 294 | |
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| 295 | /** |
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| 296 | * if we are a server update the connection list to accept new connections (clients) |
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| 297 | * also start the handsake for the new clients |
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| 298 | */ |
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[7954] | 299 | void NetworkStream::updateConnectionList( ) |
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| 300 | { |
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| 301 | //check for new connections |
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| 302 | |
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| 303 | NetworkSocket* tempNetworkSocket = serverSocket->getNewSocket(); |
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| 304 | |
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[9246] | 305 | // we got new network node |
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[7954] | 306 | if ( tempNetworkSocket ) |
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[6139] | 307 | { |
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[7954] | 308 | int clientId; |
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[9246] | 309 | // if there is a list of free client id slots, take these |
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| 310 | if ( freeSocketSlots.size() > 0 ) |
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[6139] | 311 | { |
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[7954] | 312 | clientId = freeSocketSlots.back(); |
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| 313 | freeSocketSlots.pop_back(); |
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| 314 | peers[clientId].socket = tempNetworkSocket; |
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[9285] | 315 | peers[clientId].handshake = new Handshake(this->pInfo->nodeType, clientId, this->networkGameManager->getUniqueID(), MessageManager::getInstance()->getUniqueID() ); |
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[7954] | 316 | peers[clientId].connectionMonitor = new ConnectionMonitor( clientId ); |
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| 317 | peers[clientId].handshake->setUniqueID(clientId); |
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| 318 | peers[clientId].userId = clientId; |
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[9282] | 319 | peers[clientId].nodeType = NET_CLIENT; |
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[9246] | 320 | } |
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| 321 | else |
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[7954] | 322 | { |
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| 323 | clientId = 1; |
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[9246] | 324 | |
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[7954] | 325 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); it++ ) |
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| 326 | if ( it->first >= clientId ) |
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| 327 | clientId = it->first + 1; |
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[9246] | 328 | |
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[7954] | 329 | peers[clientId].socket = tempNetworkSocket; |
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[9285] | 330 | peers[clientId].handshake = new Handshake(this->pInfo->nodeType, clientId, this->networkGameManager->getUniqueID(), MessageManager::getInstance()->getUniqueID()); |
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[7954] | 331 | peers[clientId].handshake->setUniqueID(clientId); |
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| 332 | peers[clientId].connectionMonitor = new ConnectionMonitor( clientId ); |
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| 333 | peers[clientId].userId = clientId; |
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[9282] | 334 | peers[clientId].nodeType = NET_CLIENT; |
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[9246] | 335 | |
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[7954] | 336 | PRINTF(0)("num sync: %d\n", synchronizeables.size()); |
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| 337 | } |
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[6341] | 338 | |
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[9246] | 339 | // check if there are too many clients connected |
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[9290] | 340 | if ( clientId > NET_MAX_CONNECTIONS ) |
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[7954] | 341 | { |
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| 342 | peers[clientId].handshake->doReject( "too many connections" ); |
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| 343 | PRINTF(0)("Will reject client %d because there are to many connections!\n", clientId); |
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| 344 | } |
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| 345 | else |
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[9246] | 346 | { |
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| 347 | PRINTF(0)("New Client: %d\n", clientId); |
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| 348 | } |
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[6498] | 349 | |
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[7954] | 350 | //this->connectSynchronizeable(*handshakes[clientId]); |
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| 351 | } |
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[6341] | 352 | |
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[9246] | 353 | |
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| 354 | |
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[7954] | 355 | //check if connections are ok else remove them |
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[8228] | 356 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); ) |
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[7954] | 357 | { |
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[9246] | 358 | if ( |
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[7954] | 359 | it->second.socket && |
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[9246] | 360 | ( |
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[7954] | 361 | !it->second.socket->isOk() || |
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| 362 | it->second.connectionMonitor->hasTimedOut() |
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| 363 | ) |
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| 364 | ) |
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| 365 | { |
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| 366 | std::string reason = "disconnected"; |
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| 367 | if ( it->second.connectionMonitor->hasTimedOut() ) |
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| 368 | reason = "timeout"; |
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| 369 | PRINTF(0)("Client is gone: %d (%s)\n", it->second.userId, reason.c_str()); |
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| 370 | |
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[9246] | 371 | |
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| 372 | // clean up the network data |
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[7954] | 373 | it->second.socket->disconnectServer(); |
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| 374 | delete it->second.socket; |
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| 375 | it->second.socket = NULL; |
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| 376 | |
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[8623] | 377 | if ( it->second.connectionMonitor ) |
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| 378 | delete it->second.connectionMonitor; |
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| 379 | it->second.connectionMonitor = NULL; |
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[9246] | 380 | |
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[7954] | 381 | if ( it->second.handshake ) |
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| 382 | delete it->second.handshake; |
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| 383 | it->second.handshake = NULL; |
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[9246] | 384 | |
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[7954] | 385 | for ( SynchronizeableList::iterator it2 = synchronizeables.begin(); it2 != synchronizeables.end(); it2++ ) |
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| 386 | { |
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| 387 | (*it2)->cleanUpUser( it->second.userId ); |
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[6139] | 388 | } |
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[7954] | 389 | |
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| 390 | NetworkGameManager::getInstance()->signalLeftPlayer(it->second.userId); |
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| 391 | |
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| 392 | freeSocketSlots.push_back( it->second.userId ); |
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[9246] | 393 | |
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[8228] | 394 | PeerList::iterator delit = it; |
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| 395 | it++; |
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[9246] | 396 | |
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[8228] | 397 | peers.erase( delit ); |
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[9246] | 398 | |
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[8228] | 399 | continue; |
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[6139] | 400 | } |
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[9246] | 401 | |
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[8228] | 402 | it++; |
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[6139] | 403 | } |
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| 404 | |
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| 405 | |
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[7954] | 406 | } |
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[5800] | 407 | |
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[9246] | 408 | |
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[7954] | 409 | void NetworkStream::debug() |
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| 410 | { |
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[9248] | 411 | if( this->isMasterServer()) |
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[9285] | 412 | PRINT(0)(" Host ist Server with ID: %i\n", this->pInfo->userId); |
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[7954] | 413 | else |
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[9285] | 414 | PRINT(0)(" Host ist Client with ID: %i\n", this->pInfo->userId); |
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[6695] | 415 | |
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[7954] | 416 | PRINT(0)(" Got %i connected Synchronizeables, showing active Syncs:\n", this->synchronizeables.size()); |
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[6139] | 417 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
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[5996] | 418 | { |
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[7954] | 419 | if( (*it)->beSynchronized() == true) |
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| 420 | PRINT(0)(" Synchronizeable of class: %s::%s, with unique ID: %i, Synchronize: %i\n", (*it)->getClassName(), (*it)->getName(), |
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| 421 | (*it)->getUniqueID(), (*it)->beSynchronized()); |
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| 422 | } |
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[9290] | 423 | PRINT(0)(" Maximal Connections: %i\n", NET_MAX_CONNECTIONS ); |
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[6959] | 424 | |
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[7954] | 425 | } |
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[6959] | 426 | |
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| 427 | |
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[9246] | 428 | /** |
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| 429 | * @returns the number of synchronizeables registered to this stream |
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| 430 | */ |
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[7954] | 431 | int NetworkStream::getSyncCount() |
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| 432 | { |
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| 433 | int n = 0; |
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| 434 | for (SynchronizeableList::iterator it = synchronizeables.begin(); it!=synchronizeables.end(); it++) |
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| 435 | if( (*it)->beSynchronized() == true) |
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| 436 | ++n; |
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[5730] | 437 | |
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[7954] | 438 | //return synchronizeables.size(); |
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| 439 | return n; |
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| 440 | } |
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[6139] | 441 | |
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[9246] | 442 | |
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[7954] | 443 | /** |
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[9246] | 444 | * check if handshakes completed. if so create the network game manager else remove it again |
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[7954] | 445 | */ |
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| 446 | void NetworkStream::handleHandshakes( ) |
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| 447 | { |
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| 448 | for ( PeerList::iterator it = peers.begin(); it != peers.end(); it++ ) |
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| 449 | { |
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| 450 | if ( it->second.handshake ) |
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| 451 | { |
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[9269] | 452 | // handshake finished |
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[7954] | 453 | if ( it->second.handshake->completed() ) |
---|
| 454 | { |
---|
[9269] | 455 | //handshake is correct |
---|
[7954] | 456 | if ( it->second.handshake->ok() ) |
---|
[6341] | 457 | { |
---|
[7954] | 458 | if ( !it->second.handshake->allowDel() ) |
---|
[6139] | 459 | { |
---|
[9285] | 460 | if ( this->pInfo->nodeType == NET_CLIENT ) |
---|
[6868] | 461 | { |
---|
[7954] | 462 | SharedNetworkData::getInstance()->setHostID( it->second.handshake->getHostId() ); |
---|
[9285] | 463 | this->pInfo->userId = SharedNetworkData::getInstance()->getHostID(); |
---|
[7954] | 464 | |
---|
[9271] | 465 | it->second.nodeType = it->second.handshake->getRemoteNodeType(); |
---|
[9291] | 466 | it->second.ip = it->second.socket->getDestAddress(); |
---|
[9282] | 467 | this->networkMonitor->addNode(&it->second); |
---|
[9270] | 468 | |
---|
[7954] | 469 | this->networkGameManager = NetworkGameManager::getInstance(); |
---|
| 470 | this->networkGameManager->setUniqueID( it->second.handshake->getNetworkGameManagerId() ); |
---|
| 471 | MessageManager::getInstance()->setUniqueID( it->second.handshake->getMessageManagerId() ); |
---|
[6868] | 472 | } |
---|
[7954] | 473 | |
---|
[9246] | 474 | |
---|
[7954] | 475 | PRINT(0)("handshake finished id=%d\n", it->second.handshake->getNetworkGameManagerId()); |
---|
| 476 | |
---|
| 477 | it->second.handshake->del(); |
---|
[6139] | 478 | } |
---|
| 479 | else |
---|
| 480 | { |
---|
[9269] | 481 | // handsheke finished registring new player |
---|
[7954] | 482 | if ( it->second.handshake->canDel() ) |
---|
[6868] | 483 | { |
---|
[9285] | 484 | if ( this->pInfo->nodeType == NET_MASTER_SERVER ) |
---|
[7954] | 485 | { |
---|
[9271] | 486 | it->second.nodeType = it->second.handshake->getRemoteNodeType(); |
---|
[9287] | 487 | this->networkMonitor->addNode(&it->second); |
---|
[9271] | 488 | |
---|
[7954] | 489 | handleNewClient( it->second.userId ); |
---|
[9246] | 490 | |
---|
[9235] | 491 | if ( PlayerStats::getStats( it->second.userId ) && it->second.handshake->getPreferedNickName() != "" ) |
---|
| 492 | { |
---|
| 493 | PlayerStats::getStats( it->second.userId )->setNickName( it->second.handshake->getPreferedNickName() ); |
---|
| 494 | } |
---|
[7954] | 495 | } |
---|
[9246] | 496 | |
---|
[7954] | 497 | PRINT(0)("handshake finished delete it\n"); |
---|
| 498 | delete it->second.handshake; |
---|
| 499 | it->second.handshake = NULL; |
---|
[6868] | 500 | } |
---|
[6139] | 501 | } |
---|
[7954] | 502 | |
---|
[6139] | 503 | } |
---|
| 504 | else |
---|
| 505 | { |
---|
[7954] | 506 | PRINT(1)("handshake failed!\n"); |
---|
| 507 | it->second.socket->disconnectServer(); |
---|
[6139] | 508 | } |
---|
[7954] | 509 | } |
---|
[6139] | 510 | } |
---|
[5996] | 511 | } |
---|
[7954] | 512 | } |
---|
[5741] | 513 | |
---|
[9246] | 514 | |
---|
[7954] | 515 | /** |
---|
| 516 | * handle upstream network traffic |
---|
| 517 | */ |
---|
[8068] | 518 | void NetworkStream::handleUpstream( int tick ) |
---|
[7954] | 519 | { |
---|
| 520 | int offset; |
---|
| 521 | int n; |
---|
[9246] | 522 | |
---|
[8068] | 523 | for ( PeerList::reverse_iterator peer = peers.rbegin(); peer != peers.rend(); peer++ ) |
---|
[5802] | 524 | { |
---|
[9246] | 525 | offset = INTSIZE; // reserve enough space for the packet length |
---|
| 526 | |
---|
| 527 | // continue with the next peer if this peer has no socket assigned (therefore no network) |
---|
[7954] | 528 | if ( !peer->second.socket ) |
---|
| 529 | continue; |
---|
[9246] | 530 | |
---|
| 531 | // header informations: current state |
---|
[7954] | 532 | n = Converter::intToByteArray( currentState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 533 | assert( n == INTSIZE ); |
---|
| 534 | offset += n; |
---|
[9246] | 535 | |
---|
| 536 | // header informations: last acked state |
---|
[7954] | 537 | n = Converter::intToByteArray( peer->second.lastAckedState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 538 | assert( n == INTSIZE ); |
---|
| 539 | offset += n; |
---|
[9246] | 540 | |
---|
| 541 | // header informations: last recved state |
---|
[7954] | 542 | n = Converter::intToByteArray( peer->second.lastRecvedState, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 543 | assert( n == INTSIZE ); |
---|
| 544 | offset += n; |
---|
[9246] | 545 | |
---|
| 546 | // now write all synchronizeables in the packet |
---|
[7954] | 547 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
[5810] | 548 | { |
---|
[7954] | 549 | int oldOffset = offset; |
---|
| 550 | Synchronizeable & sync = **it; |
---|
[9246] | 551 | |
---|
| 552 | // do not include synchronizeables with uninit id and syncs that don't want to be synchronized |
---|
[7954] | 553 | if ( !sync.beSynchronized() || sync.getUniqueID() < 0 ) |
---|
| 554 | continue; |
---|
[5730] | 555 | |
---|
[9246] | 556 | // if handshake not finished only sync handshake |
---|
[7954] | 557 | if ( peer->second.handshake && sync.getLeafClassID() != CL_HANDSHAKE ) |
---|
| 558 | continue; |
---|
[9246] | 559 | |
---|
| 560 | // if we are a server and this is not our handshake |
---|
[9249] | 561 | if ( isMasterServer() && sync.getLeafClassID() == CL_HANDSHAKE && sync.getUniqueID() != peer->second.userId ) |
---|
[7954] | 562 | continue; |
---|
[9246] | 563 | |
---|
| 564 | /* list of synchronizeables that will never be synchronized over the network: */ |
---|
| 565 | // do not sync null parent |
---|
[7954] | 566 | if ( sync.getLeafClassID() == CL_NULL_PARENT ) |
---|
| 567 | continue; |
---|
[6139] | 568 | |
---|
[7954] | 569 | assert( offset + INTSIZE <= UDP_PACKET_SIZE ); |
---|
[9246] | 570 | |
---|
| 571 | // server fakes uniqueid == 0 for handshake |
---|
[9290] | 572 | if ( this->isMasterServer() && sync.getUniqueID() < NET_MAX_CONNECTIONS - 1 ) |
---|
[7954] | 573 | n = Converter::intToByteArray( 0, buf + offset, UDP_PACKET_SIZE - offset ); |
---|
| 574 | else |
---|
| 575 | n = Converter::intToByteArray( sync.getUniqueID(), buf + offset, UDP_PACKET_SIZE - offset ); |
---|
[9246] | 576 | |
---|
[7954] | 577 | assert( n == INTSIZE ); |
---|
| 578 | offset += n; |
---|
[9246] | 579 | |
---|
| 580 | // make space for size |
---|
[7954] | 581 | offset += INTSIZE; |
---|
[6139] | 582 | |
---|
[7954] | 583 | n = sync.getStateDiff( peer->second.userId, buf + offset, UDP_PACKET_SIZE-offset, currentState, peer->second.lastAckedState, -1000 ); |
---|
| 584 | offset += n; |
---|
[9246] | 585 | |
---|
[7954] | 586 | assert( Converter::intToByteArray( n, buf + offset - n - INTSIZE, INTSIZE ) == INTSIZE ); |
---|
[6341] | 587 | |
---|
[9246] | 588 | // check if all data bytes == 0 -> remove data and the synchronizeable from the sync process since there is no update |
---|
| 589 | // TODO not all synchronizeables like this maybe add Synchronizeable::canRemoveZeroDiff() |
---|
| 590 | bool allZero = true; |
---|
| 591 | for ( int i = 0; i < n; i++ ) |
---|
| 592 | { |
---|
| 593 | if ( buf[i+oldOffset+2*INTSIZE] != 0 ) |
---|
| 594 | allZero = false; |
---|
| 595 | } |
---|
| 596 | // if there is no new data in this synchronizeable reset the data offset to the last state -> dont synchronizes |
---|
| 597 | // data that hast not changed |
---|
| 598 | if ( allZero ) |
---|
| 599 | { |
---|
| 600 | offset = oldOffset; |
---|
| 601 | } |
---|
| 602 | } // all synchronizeables written |
---|
[6139] | 603 | |
---|
[9246] | 604 | |
---|
| 605 | |
---|
[7954] | 606 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
| 607 | { |
---|
| 608 | Synchronizeable & sync = **it; |
---|
[9246] | 609 | |
---|
[7954] | 610 | if ( !sync.beSynchronized() || sync.getUniqueID() < 0 ) |
---|
| 611 | continue; |
---|
[9246] | 612 | |
---|
[7954] | 613 | sync.handleSentState( peer->second.userId, currentState, peer->second.lastAckedState ); |
---|
| 614 | } |
---|
[9246] | 615 | |
---|
| 616 | |
---|
[7954] | 617 | assert( Converter::intToByteArray( offset, buf, INTSIZE ) == INTSIZE ); |
---|
[9246] | 618 | |
---|
| 619 | // now compress the data with the zip library |
---|
[8623] | 620 | int compLength = 0; |
---|
[9249] | 621 | if ( this->isMasterServer() ) |
---|
[8623] | 622 | compLength = Zip::getInstance()->zip( buf, offset, compBuf, UDP_PACKET_SIZE, dictServer ); |
---|
| 623 | else |
---|
| 624 | compLength = Zip::getInstance()->zip( buf, offset, compBuf, UDP_PACKET_SIZE, dictClient ); |
---|
[9246] | 625 | |
---|
[8623] | 626 | if ( compLength <= 0 ) |
---|
[7954] | 627 | { |
---|
| 628 | PRINTF(1)("compression failed!\n"); |
---|
| 629 | continue; |
---|
| 630 | } |
---|
[9246] | 631 | |
---|
[7954] | 632 | assert( peer->second.socket->writePacket( compBuf, compLength ) ); |
---|
[9246] | 633 | |
---|
[7954] | 634 | if ( this->remainingBytesToWriteToDict > 0 ) |
---|
[8623] | 635 | writeToNewDict( buf, offset, true ); |
---|
[9246] | 636 | |
---|
[8068] | 637 | peer->second.connectionMonitor->processUnzippedOutgoingPacket( tick, buf, offset, currentState ); |
---|
| 638 | peer->second.connectionMonitor->processZippedOutgoingPacket( tick, compBuf, compLength, currentState ); |
---|
[9246] | 639 | |
---|
[5810] | 640 | } |
---|
[6139] | 641 | } |
---|
| 642 | |
---|
[7954] | 643 | /** |
---|
| 644 | * handle downstream network traffic |
---|
| 645 | */ |
---|
[8068] | 646 | void NetworkStream::handleDownstream( int tick ) |
---|
[6139] | 647 | { |
---|
[7954] | 648 | int offset = 0; |
---|
[9246] | 649 | |
---|
[7954] | 650 | int length = 0; |
---|
| 651 | int packetLength = 0; |
---|
| 652 | int compLength = 0; |
---|
| 653 | int uniqueId = 0; |
---|
| 654 | int state = 0; |
---|
| 655 | int ackedState = 0; |
---|
| 656 | int fromState = 0; |
---|
| 657 | int syncDataLength = 0; |
---|
[9246] | 658 | |
---|
[7954] | 659 | for ( PeerList::iterator peer = peers.begin(); peer != peers.end(); peer++ ) |
---|
[5810] | 660 | { |
---|
[9246] | 661 | |
---|
[7954] | 662 | if ( !peer->second.socket ) |
---|
| 663 | continue; |
---|
[5730] | 664 | |
---|
[7954] | 665 | while ( 0 < (compLength = peer->second.socket->readPacket( compBuf, UDP_PACKET_SIZE )) ) |
---|
[6139] | 666 | { |
---|
[8068] | 667 | peer->second.connectionMonitor->processZippedIncomingPacket( tick, compBuf, compLength ); |
---|
[9246] | 668 | |
---|
[7954] | 669 | packetLength = Zip::getInstance()->unZip( compBuf, compLength, buf, UDP_PACKET_SIZE ); |
---|
[8623] | 670 | |
---|
[7954] | 671 | if ( packetLength < 4*INTSIZE ) |
---|
| 672 | { |
---|
| 673 | if ( packetLength != 0 ) |
---|
| 674 | PRINTF(1)("got too small packet: %d\n", packetLength); |
---|
| 675 | continue; |
---|
| 676 | } |
---|
[9246] | 677 | |
---|
[7954] | 678 | if ( this->remainingBytesToWriteToDict > 0 ) |
---|
[8623] | 679 | writeToNewDict( buf, packetLength, false ); |
---|
[9246] | 680 | |
---|
[7954] | 681 | assert( Converter::byteArrayToInt( buf, &length ) == INTSIZE ); |
---|
| 682 | assert( Converter::byteArrayToInt( buf + INTSIZE, &state ) == INTSIZE ); |
---|
| 683 | assert( Converter::byteArrayToInt( buf + 2*INTSIZE, &fromState ) == INTSIZE ); |
---|
| 684 | assert( Converter::byteArrayToInt( buf + 3*INTSIZE, &ackedState ) == INTSIZE ); |
---|
| 685 | offset = 4*INTSIZE; |
---|
[9246] | 686 | |
---|
[8623] | 687 | peer->second.connectionMonitor->processUnzippedIncomingPacket( tick, buf, packetLength, state, ackedState ); |
---|
[6139] | 688 | |
---|
[9246] | 689 | |
---|
[9255] | 690 | //if this is an old state drop it |
---|
[7954] | 691 | if ( state <= peer->second.lastRecvedState ) |
---|
| 692 | continue; |
---|
[9246] | 693 | |
---|
[7954] | 694 | if ( packetLength != length ) |
---|
| 695 | { |
---|
| 696 | PRINTF(1)("real packet length (%d) and transmitted packet length (%d) do not match!\n", packetLength, length); |
---|
| 697 | peer->second.socket->disconnectServer(); |
---|
| 698 | continue; |
---|
| 699 | } |
---|
[9246] | 700 | |
---|
[7954] | 701 | while ( offset + 2*INTSIZE < length ) |
---|
| 702 | { |
---|
| 703 | assert( offset > 0 ); |
---|
| 704 | assert( Converter::byteArrayToInt( buf + offset, &uniqueId ) == INTSIZE ); |
---|
| 705 | offset += INTSIZE; |
---|
[9246] | 706 | |
---|
[7954] | 707 | assert( Converter::byteArrayToInt( buf + offset, &syncDataLength ) == INTSIZE ); |
---|
| 708 | offset += INTSIZE; |
---|
[9246] | 709 | |
---|
[7954] | 710 | assert( syncDataLength > 0 ); |
---|
| 711 | assert( syncDataLength < 10000 ); |
---|
[9246] | 712 | |
---|
[7954] | 713 | Synchronizeable * sync = NULL; |
---|
[9246] | 714 | |
---|
[7954] | 715 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
[9246] | 716 | { |
---|
[7954] | 717 | // client thinks his handshake has id 0!!!!! |
---|
| 718 | if ( (*it)->getUniqueID() == uniqueId || ( uniqueId == 0 && (*it)->getUniqueID() == peer->second.userId ) ) |
---|
| 719 | { |
---|
| 720 | sync = *it; |
---|
| 721 | break; |
---|
| 722 | } |
---|
| 723 | } |
---|
[9246] | 724 | |
---|
[7954] | 725 | if ( sync == NULL ) |
---|
| 726 | { |
---|
| 727 | PRINTF(0)("could not find sync with id %d. try to create it\n", uniqueId); |
---|
| 728 | if ( oldSynchronizeables.find( uniqueId ) != oldSynchronizeables.end() ) |
---|
| 729 | { |
---|
| 730 | offset += syncDataLength; |
---|
| 731 | continue; |
---|
| 732 | } |
---|
[9246] | 733 | |
---|
[9282] | 734 | if ( !peers[peer->second.userId].isMasterServer() ) |
---|
[7954] | 735 | { |
---|
| 736 | offset += syncDataLength; |
---|
| 737 | continue; |
---|
| 738 | } |
---|
[9246] | 739 | |
---|
[7954] | 740 | int leafClassId; |
---|
| 741 | if ( INTSIZE > length - offset ) |
---|
| 742 | { |
---|
| 743 | offset += syncDataLength; |
---|
| 744 | continue; |
---|
| 745 | } |
---|
[6139] | 746 | |
---|
[7954] | 747 | Converter::byteArrayToInt( buf + offset, &leafClassId ); |
---|
[9246] | 748 | |
---|
[7954] | 749 | assert( leafClassId != 0 ); |
---|
[9246] | 750 | |
---|
[7954] | 751 | BaseObject * b = NULL; |
---|
| 752 | /* These are some small exeptions in creation: Not all objects can/should be created via Factory */ |
---|
| 753 | /* Exception 1: NullParent */ |
---|
| 754 | if( leafClassId == CL_NULL_PARENT || leafClassId == CL_SYNCHRONIZEABLE || leafClassId == CL_NETWORK_GAME_MANAGER ) |
---|
| 755 | { |
---|
| 756 | PRINTF(1)("Can not create Class with ID %x!\n", (int)leafClassId); |
---|
| 757 | offset += syncDataLength; |
---|
| 758 | continue; |
---|
| 759 | } |
---|
| 760 | else |
---|
| 761 | b = Factory::fabricate( (ClassID)leafClassId ); |
---|
[5800] | 762 | |
---|
[7954] | 763 | if ( !b ) |
---|
| 764 | { |
---|
| 765 | PRINTF(1)("Could not fabricate Object with classID %x\n", leafClassId); |
---|
| 766 | offset += syncDataLength; |
---|
| 767 | continue; |
---|
| 768 | } |
---|
[5809] | 769 | |
---|
[7954] | 770 | if ( b->isA(CL_SYNCHRONIZEABLE) ) |
---|
| 771 | { |
---|
| 772 | sync = dynamic_cast<Synchronizeable*>(b); |
---|
| 773 | sync->setUniqueID( uniqueId ); |
---|
| 774 | sync->setSynchronized(true); |
---|
[9246] | 775 | |
---|
[7954] | 776 | PRINTF(0)("Fabricated %s with id %d\n", sync->getClassName(), sync->getUniqueID()); |
---|
| 777 | } |
---|
| 778 | else |
---|
| 779 | { |
---|
| 780 | PRINTF(1)("Class with ID %x is not a synchronizeable!\n", (int)leafClassId); |
---|
| 781 | delete b; |
---|
| 782 | offset += syncDataLength; |
---|
| 783 | continue; |
---|
| 784 | } |
---|
| 785 | } |
---|
[6139] | 786 | |
---|
[9246] | 787 | |
---|
| 788 | int n = sync->setStateDiff( peer->second.userId, buf+offset, syncDataLength, state, fromState ); |
---|
[7954] | 789 | offset += n; |
---|
| 790 | //NETPRINTF(0)("SSSSSEEEEETTTTT: %s %d\n",sync->getClassName(), n); |
---|
[6498] | 791 | |
---|
[7954] | 792 | } |
---|
[9246] | 793 | |
---|
[7954] | 794 | if ( offset != length ) |
---|
[6139] | 795 | { |
---|
[7954] | 796 | PRINTF(0)("offset (%d) != length (%d)\n", offset, length); |
---|
| 797 | peer->second.socket->disconnectServer(); |
---|
[6139] | 798 | } |
---|
[9246] | 799 | |
---|
| 800 | |
---|
[7954] | 801 | for ( SynchronizeableList::iterator it = synchronizeables.begin(); it != synchronizeables.end(); it++ ) |
---|
[6139] | 802 | { |
---|
[7954] | 803 | Synchronizeable & sync = **it; |
---|
[9246] | 804 | |
---|
[7954] | 805 | if ( !sync.beSynchronized() || sync.getUniqueID() < 0 ) |
---|
| 806 | continue; |
---|
[9246] | 807 | |
---|
[7954] | 808 | sync.handleRecvState( peer->second.userId, state, fromState ); |
---|
[6139] | 809 | } |
---|
[9246] | 810 | |
---|
[7954] | 811 | assert( peer->second.lastAckedState <= ackedState ); |
---|
| 812 | peer->second.lastAckedState = ackedState; |
---|
[9246] | 813 | |
---|
[7954] | 814 | assert( peer->second.lastRecvedState < state ); |
---|
| 815 | peer->second.lastRecvedState = state; |
---|
[8228] | 816 | |
---|
[6139] | 817 | } |
---|
[9246] | 818 | |
---|
[6139] | 819 | } |
---|
[9246] | 820 | |
---|
[7954] | 821 | } |
---|
[6139] | 822 | |
---|
[7954] | 823 | /** |
---|
| 824 | * is executed when a handshake has finished |
---|
| 825 | */ |
---|
| 826 | void NetworkStream::handleNewClient( int userId ) |
---|
| 827 | { |
---|
[9268] | 828 | // init and assign the message manager |
---|
[7954] | 829 | MessageManager::getInstance()->initUser( userId ); |
---|
[9268] | 830 | // do all game relevant stuff here |
---|
| 831 | networkGameManager->signalNewPlayer( userId ); |
---|
[9246] | 832 | |
---|
[9268] | 833 | // register the new client at the network monitor |
---|
| 834 | // this->networkMonitor->addClient(); |
---|
[5604] | 835 | } |
---|
[6139] | 836 | |
---|
[9268] | 837 | |
---|
[7954] | 838 | /** |
---|
| 839 | * removes old items from oldSynchronizeables |
---|
| 840 | */ |
---|
| 841 | void NetworkStream::cleanUpOldSyncList( ) |
---|
[6139] | 842 | { |
---|
[7954] | 843 | int now = SDL_GetTicks(); |
---|
[9246] | 844 | |
---|
[7954] | 845 | for ( std::map<int,int>::iterator it = oldSynchronizeables.begin(); it != oldSynchronizeables.end(); ) |
---|
[6139] | 846 | { |
---|
[7954] | 847 | if ( it->second < now - 10*1000 ) |
---|
| 848 | { |
---|
| 849 | std::map<int,int>::iterator delIt = it; |
---|
| 850 | it++; |
---|
| 851 | oldSynchronizeables.erase( delIt ); |
---|
| 852 | continue; |
---|
| 853 | } |
---|
| 854 | it++; |
---|
[6139] | 855 | } |
---|
[7954] | 856 | } |
---|
| 857 | |
---|
| 858 | /** |
---|
| 859 | * writes data to DATA/dicts/newdict |
---|
| 860 | * @param data pointer to data |
---|
| 861 | * @param length length |
---|
| 862 | */ |
---|
[8623] | 863 | void NetworkStream::writeToNewDict( byte * data, int length, bool upstream ) |
---|
[7954] | 864 | { |
---|
| 865 | if ( remainingBytesToWriteToDict <= 0 ) |
---|
| 866 | return; |
---|
[9246] | 867 | |
---|
[7954] | 868 | if ( length > remainingBytesToWriteToDict ) |
---|
| 869 | length = remainingBytesToWriteToDict; |
---|
[9246] | 870 | |
---|
[7954] | 871 | std::string fileName = ResourceManager::getInstance()->getDataDir(); |
---|
| 872 | fileName += "/dicts/newdict"; |
---|
[9246] | 873 | |
---|
[8623] | 874 | if ( upstream ) |
---|
| 875 | fileName += "_upstream"; |
---|
| 876 | else |
---|
| 877 | fileName += "_downstream"; |
---|
[9246] | 878 | |
---|
[7954] | 879 | FILE * f = fopen( fileName.c_str(), "a" ); |
---|
[9246] | 880 | |
---|
[7954] | 881 | if ( !f ) |
---|
[6139] | 882 | { |
---|
[7954] | 883 | PRINTF(2)("could not open %s\n", fileName.c_str()); |
---|
| 884 | remainingBytesToWriteToDict = 0; |
---|
[6139] | 885 | return; |
---|
| 886 | } |
---|
[9246] | 887 | |
---|
[7954] | 888 | if ( fwrite( data, 1, length, f ) != length ) |
---|
[6341] | 889 | { |
---|
[7954] | 890 | PRINTF(2)("could not write to file\n"); |
---|
| 891 | fclose( f ); |
---|
[6341] | 892 | return; |
---|
| 893 | } |
---|
[9246] | 894 | |
---|
[7954] | 895 | fclose( f ); |
---|
[9246] | 896 | |
---|
| 897 | remainingBytesToWriteToDict -= length; |
---|
[6139] | 898 | } |
---|
| 899 | |
---|
| 900 | |
---|
[6695] | 901 | |
---|
| 902 | |
---|
| 903 | |
---|
| 904 | |
---|