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 | |
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12 | ### File Specific: |
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13 | main-programmer: Christoph Renner (rennerc@ee.ethz.ch) |
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14 | co-programmer: Patrick Boenzli (patrick@orxonox.ethz.ch) |
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15 | */ |
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16 | |
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17 | #define DEBUG_MODULE_NETWORK |
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18 | |
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19 | #include "shared_network_data.h" |
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20 | #include "network_stream.h" |
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21 | #include "netdefs.h" |
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22 | #include "network_log.h" |
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23 | #include "network_game_manager.h" |
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24 | |
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25 | #include "state.h" |
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26 | |
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27 | #include <cassert> |
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28 | |
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29 | #include "synchronizeable.h" |
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30 | |
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31 | #include "converter.h" |
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32 | |
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33 | |
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34 | |
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35 | /** |
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36 | * default constructor |
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37 | */ |
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38 | Synchronizeable::Synchronizeable() |
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39 | { |
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40 | this->setClassID(CL_SYNCHRONIZEABLE, "Synchronizeable"); |
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41 | this->owner = 0; |
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42 | // this->setIsServer(SharedNetworkData::getInstance()->getHostID() == 0); |
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43 | this->uniqueID = NET_UID_UNASSIGNED; |
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44 | this->networkStream = NULL; |
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45 | this->bSynchronize = false; |
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46 | |
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47 | if( State::isOnline()) |
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48 | { |
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49 | NetworkStream* nd = SharedNetworkData::getInstance()->getDefaultSyncStream(); |
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50 | assert(nd != NULL); |
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51 | nd->connectSynchronizeable(*this); |
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52 | this->setUniqueID(SharedNetworkData::getInstance()->getNewUniqueID()); |
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53 | } |
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54 | |
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55 | /* make sure loadClassId is first synced var because this is read by networkStream */ |
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56 | assert( syncVarList.size() == 0 ); |
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57 | mLeafClassId = this->registerVarId( new SynchronizeableInt( (int*)&this->getLeafClassID(), (int*)&this->getLeafClassID(), "leafClassId", PERMISSION_MASTER_SERVER) ); |
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58 | |
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59 | this->registerVar( new SynchronizeableInt( &this->owner, &this->owner, "owner", PERMISSION_MASTER_SERVER ) ); |
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60 | this->registerVar( new SynchronizeableString( &this->objectName, &this->objectName, "objectName", PERMISSION_MASTER_SERVER ) ); |
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61 | } |
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62 | |
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63 | |
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64 | |
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65 | /** |
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66 | * default destructor deletes all unneded stuff |
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67 | */ |
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68 | Synchronizeable::~Synchronizeable() |
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69 | { |
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70 | if ( this->networkStream ) |
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71 | { |
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72 | this->networkStream->disconnectSynchronizeable(*this); |
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73 | |
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74 | // remove the message manager only by the server |
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75 | if ( (SharedNetworkData::getInstance()->isMasterServer() ) |
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76 | && this->beSynchronized() && this->getUniqueID() > 0 && !this->isA( CL_MESSAGE_MANAGER ) ) |
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77 | NetworkGameManager::getInstance()->removeSynchronizeable( this->getUniqueID() ); |
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78 | } |
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79 | |
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80 | for ( SyncVarList::iterator it = syncVarList.begin(); it != syncVarList.end(); it++ ) |
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81 | { |
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82 | delete *it; |
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83 | } |
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84 | syncVarList.clear(); |
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85 | |
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86 | for ( UserStateHistory::iterator it = recvStates.begin(); it != recvStates.end(); it++ ) |
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87 | { |
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88 | for ( StateHistory::iterator it2 = it->begin(); it2 != it->end(); it2++ ) |
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89 | { |
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90 | if ( (*it2)->data ) |
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91 | { |
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92 | delete [] (*it2)->data; |
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93 | (*it2)->data = NULL; |
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94 | } |
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95 | delete *it2; |
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96 | } |
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97 | |
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98 | } |
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99 | |
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100 | for ( UserStateHistory::iterator it = sentStates.begin(); it != sentStates.end(); it++ ) |
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101 | { |
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102 | for ( StateHistory::iterator it2 = it->begin(); it2 != it->end(); it2++ ) |
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103 | { |
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104 | if ( (*it2)->data ) |
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105 | { |
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106 | delete [] (*it2)->data; |
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107 | (*it2)->data = NULL; |
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108 | } |
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109 | delete *it2; |
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110 | } |
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111 | } |
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112 | } |
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113 | |
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114 | |
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115 | |
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116 | /** |
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117 | * creates a diff image from two states |
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118 | * @param userId: the userid of the user where the image will be sent to |
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119 | * @param data: the binary data array to write to |
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120 | * @param maxLength: maximal length of the data written (length of available space in the array) |
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121 | * @param stateId: the state id that this diff will represent |
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122 | * @param priorityTH: the priority threshold: all syncs below this threshold won't be synchronized |
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123 | * |
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124 | * @todo check for permissions |
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125 | */ |
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126 | int Synchronizeable::getStateDiff( int userId, byte* data, int maxLength, int stateId, int fromStateId, int priorityTH ) |
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127 | { |
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128 | // make sure this user has his history or resize for new clients |
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129 | if ( (int)sentStates.size() <= userId ) |
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130 | sentStates.resize( userId+1 ); |
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131 | |
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132 | //calculate needed memory |
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133 | int neededSize = 0; |
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134 | |
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135 | // calculate the needed space for network packet by summing up |
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136 | for ( SyncVarList::iterator it = syncVarList.begin(); it != syncVarList.end(); it++ ) |
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137 | { |
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138 | //PRINTF(0)("SIZE = %d %s\n", (*it)->getSize(), (*it)->getName().c_str()); |
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139 | neededSize += (*it)->getSize(); |
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140 | } |
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141 | |
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142 | if ( !( neededSize <= maxLength ) ) |
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143 | { |
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144 | PRINTF(0)( "%d > %d\n", neededSize, maxLength ); |
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145 | assert(false); |
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146 | } |
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147 | |
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148 | //remove older states from history than fromStateId |
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149 | StateHistory::iterator it = sentStates[userId].begin(); |
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150 | |
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151 | while ( it != sentStates[userId].end() && (*it)->stateId < fromStateId ) |
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152 | it++; |
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153 | |
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154 | if ( it != sentStates[userId].begin() ) |
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155 | { |
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156 | for ( StateHistory::iterator it2 = sentStates[userId].begin(); it2 != it; it2++ ) |
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157 | { |
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158 | if ( (*it2)->data != NULL ) |
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159 | { |
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160 | delete [] (*it2)->data; |
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161 | (*it2)->data = NULL; |
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162 | } |
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163 | |
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164 | delete *it2; |
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165 | } |
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166 | sentStates[userId].erase( sentStates[userId].begin(), it ); |
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167 | } |
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168 | |
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169 | //find state to create diff from |
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170 | StateHistoryEntry * stateFrom = NULL; |
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171 | |
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172 | it = sentStates[userId].begin(); |
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173 | while ( it != sentStates[userId].end() && (*it)->stateId != fromStateId ) |
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174 | it++; |
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175 | |
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176 | if ( it == sentStates[userId].end() ) |
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177 | { |
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178 | StateHistoryEntry * initialEntry = new StateHistoryEntry(); |
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179 | |
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180 | initialEntry->stateId = fromStateId; |
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181 | initialEntry->dataLength = 0; |
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182 | initialEntry->data = NULL; |
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183 | |
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184 | stateFrom = initialEntry; |
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185 | |
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186 | sentStates[userId].push_back( stateFrom ); |
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187 | } |
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188 | else |
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189 | stateFrom = (*it); |
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190 | |
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191 | StateHistoryEntry * stateTo = new StateHistoryEntry; |
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192 | |
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193 | sentStates[userId].push_back( stateTo ); |
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194 | |
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195 | stateTo->stateId = stateId; |
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196 | stateTo->dataLength = neededSize; |
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197 | stateTo->data = new byte[ neededSize ]; |
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198 | |
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199 | std::list<int>::iterator sizeIter = stateFrom->sizeList.begin(); |
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200 | |
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201 | int i = 0; |
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202 | int n; |
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203 | |
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204 | bool sizeChanged = false; |
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205 | |
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206 | // now do the actual synchronization: kick all variables to write into a common buffer |
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207 | for ( SyncVarList::iterator it = syncVarList.begin(); it != syncVarList.end(); it++ ) |
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208 | { |
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209 | |
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210 | //////////////////////////////// |
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211 | // Data SENDING Permissions |
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212 | //////////////////////////////// |
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213 | bool hasPermission = false; |
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214 | bool b1, b2, b3, b4, b5, b6, b7, b8, b9; |
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215 | b1 = b2 = b3 = b4 = b5 = b6 = b7 = b8 = b9 = false; |
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216 | |
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217 | |
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218 | // Permission OWNER accept if: |
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219 | // I am the owner |
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220 | if( (*it)->checkPermission( PERMISSION_OWNER ) && this->owner == SharedNetworkData::getInstance()->getHostID()) { |
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221 | hasPermission = true; b1 = true; } |
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222 | // reciever != owner && owner is local |
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223 | else if( (*it)->checkPermission( PERMISSION_OWNER ) && userId != this->owner && |
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224 | (SharedNetworkData::getInstance()->isUserLocal(this->owner) || this->owner == SharedNetworkData::getInstance()->getHostID())) { |
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225 | hasPermission = true; b2 = true; } |
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226 | |
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227 | |
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228 | // Permission MASTER_SERVER accept if: |
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229 | // im MASTER_SERVER |
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230 | else if( (*it)->checkPermission( PERMISSION_MASTER_SERVER ) && SharedNetworkData::getInstance()->isMasterServer()) { |
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231 | hasPermission = true; b3 = true; } |
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232 | // im PROXY_SERVER && reciever == CLIENT |
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233 | else if( (*it)->checkPermission( PERMISSION_MASTER_SERVER ) && SharedNetworkData::getInstance()->isProxyServerActive() && |
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234 | SharedNetworkData::getInstance()->isUserClient( userId)) { |
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235 | hasPermission = true; b4 = true; } |
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236 | |
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237 | |
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238 | // Pemission SERVER accept if: |
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239 | // i am server && reciever == CLIENT |
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240 | else if( (*it)->checkPermission( PERMISSION_SERVER ) && !SharedNetworkData::getInstance()->isClient() && |
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241 | SharedNetworkData::getInstance()->isUserClient( userId)) { |
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242 | hasPermission = true; b5 = true; } |
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243 | // i am SERVER && reciever == SERVER && reciever != owner && ( owner is local || i am owner) |
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244 | else if( (*it)->checkPermission( PERMISSION_SERVER ) && !SharedNetworkData::getInstance()->isClient() && |
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245 | userId != this->owner && |
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246 | ( SharedNetworkData::getInstance()->isUserLocal( this->owner) || this->owner == SharedNetworkData::getInstance()->getHostID())) { |
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247 | hasPermission = true; b6 = true; } |
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248 | |
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249 | |
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250 | // Permission ALL accept if: |
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251 | else if( (*it)->checkPermission( PERMISSION_ALL )) { |
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252 | hasPermission = true; b7 = true; } |
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253 | // or else refuse sending data |
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254 | else |
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255 | hasPermission = false; |
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256 | |
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257 | |
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258 | |
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259 | if ( sizeIter == stateFrom->sizeList.end() || *sizeIter != (*it)->getSize() ) |
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260 | sizeChanged = true; |
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261 | |
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262 | if ( ( hasPermission && (*it)->getPriority() >= priorityTH ) || sizeChanged ) |
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263 | { |
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264 | n = (*it)->writeToBuf( stateTo->data+i, stateTo->dataLength - i ); |
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265 | //NETPRINTF(0)("getvar %s %d\n", (*it)->getName().c_str(), n); |
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266 | // PRINTF(0)("sending %s %d\n", (*it)->getName().c_str(), n); |
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267 | |
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268 | // if( this->isA(CL_PLAYABLE)) |
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269 | // { |
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270 | // PRINTF(0)("ms: %i, ps: %i, c: %i, sender: %i, reciever: %i, owner: %i, perm: (ow %i, ms %i, s %i, a %i)\n", |
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271 | // SharedNetworkData::getInstance()->isMasterServer(), SharedNetworkData::getInstance()->isProxyServerActive(), SharedNetworkData::getInstance()->isClient(), |
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272 | // SharedNetworkData::getInstance()->getHostID(), userId, this->owner, |
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273 | // (*it)->checkPermission( PERMISSION_OWNER ), (*it)->checkPermission( PERMISSION_MASTER_SERVER ), |
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274 | // (*it)->checkPermission( PERMISSION_SERVER ), (*it)->checkPermission( PERMISSION_ALL )); |
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275 | // PRINTF(0)("hasPermission: %i, sizeChanged: %i, eval: %i, %i, %i, %i, %i, %i, %i\n", hasPermission, sizeChanged, b1, b2, b3, b4, b5, b6, b7); |
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276 | // PRINTF(0)("sending %s %s %d\n", this->getClassCName(), (*it)->getName().c_str(), n); |
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277 | // } |
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278 | |
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279 | |
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280 | stateTo->sizeList.push_back( n ); |
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281 | // this is only for very hardcore debug sessions |
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282 | // (*it)->debug(); |
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283 | i += n; |
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284 | } |
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285 | else |
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286 | { |
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287 | for ( int j = 0; j<(*sizeIter); j++ ) |
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288 | { |
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289 | assert( i < stateFrom->dataLength ); |
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290 | stateTo->data[i] = stateFrom->data[i]; |
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291 | i++; |
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292 | } |
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293 | //NETPRINTF(0)("getvar %s %d\n", (*it)->getName().c_str(), *sizeIter); |
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294 | stateTo->sizeList.push_back( (*sizeIter) ); |
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295 | } |
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296 | |
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297 | if ( sizeIter != stateFrom->sizeList.end() ) |
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298 | sizeIter++; |
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299 | } |
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300 | |
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301 | if ( i != neededSize ) |
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302 | { |
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303 | PRINTF(0)("strange error: (%s) %d != %d\n", this->getClassCName(), i, neededSize); |
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304 | assert(false); |
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305 | } |
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306 | |
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307 | //write diff to data |
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308 | for ( i = 0; i<neededSize; i++ ) |
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309 | { |
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310 | if ( i < stateFrom->dataLength ) |
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311 | data[i] = stateTo->data[i] - stateFrom->data[i]; |
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312 | else |
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313 | data[i] = stateTo->data[i]; |
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314 | } |
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315 | |
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316 | return neededSize; |
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317 | } |
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318 | |
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319 | /** |
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320 | * sets a new state out of a diff created on another host (recieving data) |
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321 | * @param userId hostId of user who send me that diff |
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322 | * @param data pointer to diff |
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323 | * @param length length of diff |
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324 | * @param stateId id of current state |
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325 | * @param fromStateId id of the base state id |
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326 | * @return number bytes read |
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327 | * |
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328 | * @todo check for permissions |
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329 | */ |
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330 | int Synchronizeable::setStateDiff( int userId, byte* data, int length, int stateId, int fromStateId ) |
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331 | { |
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332 | //make sure this user has his history |
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333 | if ( (int)recvStates.size() <= userId ) |
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334 | recvStates.resize( userId+1 ); |
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335 | |
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336 | //create new state |
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337 | StateHistoryEntry * stateTo = new StateHistoryEntry(); |
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338 | stateTo->stateId = stateId; |
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339 | stateTo->dataLength = length; |
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340 | stateTo->data = new byte[ length ]; |
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341 | |
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342 | |
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343 | //find state to apply diff to |
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344 | StateHistoryEntry * stateFrom = NULL; |
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345 | |
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346 | // search the state from wich the diff is made of |
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347 | StateHistory::iterator it = recvStates[userId].begin(); |
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348 | while ( it != recvStates[userId].end() && (*it)->stateId != fromStateId ) |
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349 | it++; |
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350 | |
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351 | // if this is the first state to receive |
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352 | if ( it == recvStates[userId].end() ) |
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353 | { |
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354 | StateHistoryEntry * initialEntry = new StateHistoryEntry(); |
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355 | |
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356 | initialEntry->stateId = fromStateId; |
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357 | initialEntry->dataLength = 0; |
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358 | initialEntry->data = NULL; |
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359 | |
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360 | stateFrom = initialEntry; |
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361 | |
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362 | recvStates[userId].push_back( stateFrom ); |
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363 | } |
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364 | else |
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365 | stateFrom = (*it); |
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366 | |
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367 | |
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368 | // apply diff |
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369 | for ( int i = 0; i<length; i++ ) |
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370 | { |
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371 | if ( i < stateFrom->dataLength ) |
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372 | stateTo->data[i] = stateFrom->data[i] + data[i]; |
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373 | else |
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374 | stateTo->data[i] = data[i]; |
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375 | } |
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376 | |
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377 | //add state to state history |
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378 | recvStates[userId].push_back( stateTo ); |
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379 | |
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380 | int i = 0; |
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381 | int n = 0; |
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382 | std::list<int> changes; |
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383 | |
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384 | // extract the new state for every client |
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385 | for ( SyncVarList::iterator it = syncVarList.begin(); it != syncVarList.end(); it++ ) |
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386 | { |
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387 | // DATA PERMISSIONS |
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388 | // check if this synchronizeable has the permissions to write the data |
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389 | |
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390 | bool hasPermission = false; |
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391 | bool b1, b2, b3, b4, b5, b6, b7, b8, b9; |
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392 | b1 = b2 = b3 = b4 = b5 = b6 = b7 = b8 = b9 = false; |
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393 | |
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394 | //////////////////////////////// |
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395 | // Data RECIEVING Permissions |
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396 | //////////////////////////////// |
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397 | |
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398 | // i should never ever receive a state update from a synchronizeable, that belongs to me! If it does somethings wrong with the send rules |
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399 | // assert( !((*it)->checkPermission( PERMISSION_OWNER ) && this->owner == SharedNetworkData::getInstance()->getHostID())); |
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400 | |
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401 | |
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402 | // Permission OWNER accept if: |
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403 | // sender == owner |
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404 | if( (*it)->checkPermission( PERMISSION_OWNER ) && this->owner == userId) { |
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405 | hasPermission = true; b1 = true; } |
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406 | // sender == MASTER_SERVER |
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407 | else if( (*it)->checkPermission( PERMISSION_OWNER ) && SharedNetworkData::getInstance()->isUserMasterServer( userId) |
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408 | && this->owner != SharedNetworkData::getInstance()->getHostID()) { |
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409 | hasPermission = true; b2 = true; } |
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410 | // sender == PROXY_SERVER |
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411 | else if( (*it)->checkPermission( PERMISSION_OWNER ) && SharedNetworkData::getInstance()->isUserProxyServerActive( userId) && |
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412 | this->owner != SharedNetworkData::getInstance()->getHostID()) { |
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413 | hasPermission = true; b3 = true; } |
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414 | |
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415 | |
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416 | |
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417 | // Permission MASTER_SERVER accept if: |
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418 | // sender == MASTER_SERVER |
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419 | else if( (*it)->checkPermission( PERMISSION_MASTER_SERVER) && SharedNetworkData::getInstance()->isUserMasterServer( userId)) { |
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420 | hasPermission = true; b4 = true; } |
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421 | // sender == PROXY_SERVER && im not MASTER_SERVER && im not PROXY_SERVER |
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422 | else if( (*it)->checkPermission( PERMISSION_MASTER_SERVER) && SharedNetworkData::getInstance()->isClient() && |
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423 | SharedNetworkData::getInstance()->isUserProxyServerActive( userId)) { |
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424 | hasPermission = true; b5 = true; } |
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425 | |
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426 | // Permission SERVER accept if: |
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427 | // sender == SERVER |
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428 | else if( (*it)->checkPermission( PERMISSION_SERVER ) && !SharedNetworkData::getInstance()->isUserClient( userId) /*&& |
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429 | SharedNetworkData::getInstance()->isClient()*/) { |
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430 | hasPermission = true; b6 = true; } |
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431 | |
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432 | |
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433 | |
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434 | // Pemission ALL accept if: |
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435 | else if( (*it)->checkPermission( PERMISSION_ALL )) { |
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436 | hasPermission = true; b8 = true; } |
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437 | |
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438 | |
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439 | // no rights to over-write local data |
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440 | else |
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441 | hasPermission = false; |
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442 | |
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443 | |
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444 | |
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445 | // if it has the permission to write do it |
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446 | if( hasPermission) |
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447 | { |
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448 | n = (*it)->readFromBuf( stateTo->data + i, stateTo->dataLength - i ); |
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449 | i += n; |
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450 | //NETPRINTF(0)("%s::setvar %s %d\n", getClassCName(), (*it)->getName().c_str(), n); |
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451 | // PRINTF(0)("recieving: %s %d\n", (*it)->getName().c_str(), n); |
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452 | //(*it)->debug(); |
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453 | |
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454 | // if( this->isA(CL_PLAYABLE)) |
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455 | // { |
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456 | // PRINTF(0)("ms: %i, ps: %i, c: %i, sender: %i, reciever: %i, owner: %i, perm: (ow %i, ms %i, s %i, a %i)\n", |
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457 | // SharedNetworkData::getInstance()->isMasterServer(), SharedNetworkData::getInstance()->isProxyServerActive(), SharedNetworkData::getInstance()->isClient(), |
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458 | // userId, SharedNetworkData::getInstance()->getHostID(), this->owner, |
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459 | // (*it)->checkPermission( PERMISSION_OWNER ), (*it)->checkPermission( PERMISSION_MASTER_SERVER ), |
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460 | // (*it)->checkPermission( PERMISSION_SERVER ), (*it)->checkPermission( PERMISSION_ALL )); |
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461 | // PRINTF(0)("hasPermission: %i, eval: %i, %i, %i, %i, %i, %i, %i, %i\n", hasPermission, b1, b2, b3, b4, b5, b6, b7, b8); |
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462 | // PRINTF(0)("rec %s %s %d\n", this->getClassCName(), (*it)->getName().c_str(), n); |
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463 | // } |
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464 | |
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465 | |
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466 | if ( (*it)->getHasChanged() ) |
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467 | { |
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468 | changes.push_back( (*it)->getVarId() ); |
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469 | } |
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470 | } |
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471 | else |
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472 | { |
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473 | // PRINTF(0)("DONT SET VAR BECAUSE OF PERMISSION: %s perm: %d %d %d - %d %d %d\n", (*it)->getName().c_str(), (*it)->checkPermission( PERMISSION_MASTER_SERVER ), (*it)->checkPermission( PERMISSION_OWNER ), (*it)->checkPermission( PERMISSION_ALL ), networkStream->isUserMasterServer( userId ), this->owner, userId ); |
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474 | n = (*it)->getSizeFromBuf( stateTo->data + i, stateTo->dataLength - i ); |
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475 | //NETPRINTF(0)("%s::setvar %s %d\n", getClassCName(), (*it)->getName().c_str(), n); |
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476 | //(*it)->debug(); |
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477 | i += n; |
---|
478 | } |
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479 | } |
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480 | |
---|
481 | this->varChangeHandler( changes ); |
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482 | |
---|
483 | return i; |
---|
484 | } |
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485 | |
---|
486 | /** |
---|
487 | * override this function to be notified on change |
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488 | * of your registred variables. |
---|
489 | * @param id id's which have changed |
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490 | */ |
---|
491 | void Synchronizeable::varChangeHandler( std::list<int> & id ) |
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492 | { |
---|
493 | } |
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494 | |
---|
495 | /** |
---|
496 | * registers a varable to be synchronized over network |
---|
497 | * @param var see src/lib/network/synchronizeable_var/ for available classes |
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498 | */ |
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499 | void Synchronizeable::registerVar( SynchronizeableVar * var ) |
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500 | { |
---|
501 | syncVarList.push_back( var ); |
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502 | } |
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503 | |
---|
504 | /** |
---|
505 | * registers a varable to be synchronized over network |
---|
506 | * return value is passed to varChangeHandler on change |
---|
507 | * @param var see src/lib/network/synchronizeable_var/ for available classes |
---|
508 | * @return handle passed to varChangeHandler on changes |
---|
509 | */ |
---|
510 | int Synchronizeable::registerVarId( SynchronizeableVar * var ) |
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511 | { |
---|
512 | syncVarList.push_back( var ); |
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513 | var->setWatched( true ); |
---|
514 | var->setVarId( syncVarList.size()-1 ); |
---|
515 | return syncVarList.size()-1; |
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516 | } |
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517 | |
---|
518 | /** |
---|
519 | * removed user's states from memory |
---|
520 | * @param userId user to clean |
---|
521 | */ |
---|
522 | void Synchronizeable::cleanUpUser( int userId ) |
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523 | { |
---|
524 | if ( (int)recvStates.size() > userId ) |
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525 | { |
---|
526 | for ( std::list<StateHistoryEntry*>::iterator it = recvStates[userId].begin(); it != recvStates[userId].end(); it++ ) |
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527 | { |
---|
528 | if ( (*it)->data ) |
---|
529 | { |
---|
530 | delete [] (*it)->data; |
---|
531 | (*it)->data = NULL; |
---|
532 | } |
---|
533 | |
---|
534 | delete *it; |
---|
535 | } |
---|
536 | recvStates[userId].clear(); |
---|
537 | } |
---|
538 | |
---|
539 | if ( (int)sentStates.size() > userId ) |
---|
540 | { |
---|
541 | |
---|
542 | for ( std::list<StateHistoryEntry*>::iterator it = sentStates[userId].begin(); it != sentStates[userId].end(); it++ ) |
---|
543 | { |
---|
544 | if ( (*it)->data ) |
---|
545 | { |
---|
546 | delete [] (*it)->data; |
---|
547 | (*it)->data = NULL; |
---|
548 | } |
---|
549 | |
---|
550 | delete *it; |
---|
551 | } |
---|
552 | sentStates[userId].clear(); |
---|
553 | } |
---|
554 | } |
---|
555 | |
---|
556 | /** |
---|
557 | * this function is called after recieving a state. |
---|
558 | * @param userId |
---|
559 | * @param stateId |
---|
560 | * @param fromStateId |
---|
561 | */ |
---|
562 | void Synchronizeable::handleRecvState( int userId, int stateId, int fromStateId ) |
---|
563 | { |
---|
564 | //make sure this user has his history |
---|
565 | if ( (int)recvStates.size() <= userId ) |
---|
566 | recvStates.resize( userId+1 ); |
---|
567 | |
---|
568 | //remove old states |
---|
569 | StateHistory::iterator it = recvStates[userId].begin(); |
---|
570 | |
---|
571 | #if 0 |
---|
572 | while ( it != recvStates[userId].end() && (*it)->stateId < fromStateId ) |
---|
573 | it++; |
---|
574 | |
---|
575 | if ( it != recvStates[userId].begin() ) |
---|
576 | { |
---|
577 | for ( StateHistory::iterator it2 = recvStates[userId].begin(); it2 != it; it2++ ) |
---|
578 | { |
---|
579 | if ( (*it2)->data != NULL ) |
---|
580 | { |
---|
581 | delete [] (*it2)->data; |
---|
582 | (*it2)->data = NULL; |
---|
583 | } |
---|
584 | } |
---|
585 | recvStates[userId].erase( recvStates[userId].begin(), it ); |
---|
586 | } |
---|
587 | #endif |
---|
588 | |
---|
589 | for ( it = recvStates[userId].begin(); it != recvStates[userId].end(); ) |
---|
590 | { |
---|
591 | if ( (*it)->stateId < fromStateId ) |
---|
592 | { |
---|
593 | StateHistory::iterator delIt = it; |
---|
594 | it ++; |
---|
595 | |
---|
596 | if ( (*delIt)->data ) |
---|
597 | { |
---|
598 | delete [] (*delIt)->data; |
---|
599 | (*delIt)->data = NULL; |
---|
600 | } |
---|
601 | delete *delIt; |
---|
602 | recvStates[userId].erase( delIt ); |
---|
603 | |
---|
604 | continue; |
---|
605 | } |
---|
606 | it++; |
---|
607 | } |
---|
608 | |
---|
609 | StateHistory::iterator fromState = recvStates[userId].end(); |
---|
610 | StateHistory::iterator toState = recvStates[userId].end(); |
---|
611 | |
---|
612 | for ( it = recvStates[userId].begin(); it != recvStates[userId].end(); it++ ) |
---|
613 | { |
---|
614 | if ( (*it)->stateId == stateId ) |
---|
615 | toState = it; |
---|
616 | if ( (*it)->stateId == fromStateId ) |
---|
617 | fromState = it; |
---|
618 | |
---|
619 | if ( fromState != recvStates[userId].end() && toState != recvStates[userId].end() ) |
---|
620 | break; |
---|
621 | } |
---|
622 | |
---|
623 | // setStateDiff was not called and i know fromStateId |
---|
624 | if ( fromState != recvStates[userId].end() && toState == recvStates[userId].end() ) |
---|
625 | { |
---|
626 | StateHistoryEntry * entry = new StateHistoryEntry; |
---|
627 | |
---|
628 | entry->dataLength = (*fromState)->dataLength; |
---|
629 | if ( entry->dataLength > 0 ) |
---|
630 | { |
---|
631 | entry->data = new byte[entry->dataLength]; |
---|
632 | |
---|
633 | assert( (*fromState)->data ); |
---|
634 | memcpy( entry->data, (*fromState)->data, entry->dataLength ); |
---|
635 | } |
---|
636 | else |
---|
637 | entry->data = NULL; |
---|
638 | |
---|
639 | entry->sizeList = (*fromState)->sizeList; |
---|
640 | entry->stateId = stateId; |
---|
641 | |
---|
642 | recvStates[userId].push_back(entry); |
---|
643 | } |
---|
644 | } |
---|
645 | |
---|
646 | /** |
---|
647 | * this function is called after sending a state |
---|
648 | * @param userId |
---|
649 | * @param stateId |
---|
650 | * @param fromStateId |
---|
651 | */ |
---|
652 | void Synchronizeable::handleSentState( int userId, int stateId, int fromStateId ) |
---|
653 | { |
---|
654 | //make sure this user has his history |
---|
655 | if ( (int)sentStates.size() <= userId ) |
---|
656 | sentStates.resize( userId+1 ); |
---|
657 | |
---|
658 | //remove old states |
---|
659 | StateHistory::iterator it = sentStates[userId].begin(); |
---|
660 | |
---|
661 | for ( it = sentStates[userId].begin(); it != sentStates[userId].end(); ) |
---|
662 | { |
---|
663 | if ( (*it)->stateId < fromStateId ) |
---|
664 | { |
---|
665 | StateHistory::iterator delIt = it; |
---|
666 | it ++; |
---|
667 | |
---|
668 | if ( (*delIt)->data ) |
---|
669 | { |
---|
670 | delete [] (*delIt)->data; |
---|
671 | (*delIt)->data = NULL; |
---|
672 | } |
---|
673 | delete *delIt; |
---|
674 | sentStates[userId].erase( delIt ); |
---|
675 | |
---|
676 | continue; |
---|
677 | } |
---|
678 | it++; |
---|
679 | } |
---|
680 | |
---|
681 | |
---|
682 | StateHistory::iterator fromState = sentStates[userId].end(); |
---|
683 | StateHistory::iterator toState = sentStates[userId].end(); |
---|
684 | |
---|
685 | for ( it = sentStates[userId].begin(); it != sentStates[userId].end(); it++ ) |
---|
686 | { |
---|
687 | if ( (*it)->stateId == stateId ) |
---|
688 | toState = it; |
---|
689 | if ( (*it)->stateId == fromStateId ) |
---|
690 | fromState = it; |
---|
691 | |
---|
692 | if ( fromState != sentStates[userId].end() && toState != sentStates[userId].end() ) |
---|
693 | break; |
---|
694 | } |
---|
695 | |
---|
696 | |
---|
697 | // getStateDiff was not called and i know fromStateId |
---|
698 | if ( fromState != sentStates[userId].end() && toState == sentStates[userId].end() ) |
---|
699 | { |
---|
700 | StateHistoryEntry * entry = new StateHistoryEntry; |
---|
701 | |
---|
702 | entry->dataLength = (*fromState)->dataLength; |
---|
703 | if ( entry->dataLength > 0 ) |
---|
704 | { |
---|
705 | entry->data = new byte[entry->dataLength]; |
---|
706 | |
---|
707 | assert( (*fromState)->data ); |
---|
708 | memcpy( entry->data, (*fromState)->data, entry->dataLength ); |
---|
709 | } |
---|
710 | else |
---|
711 | entry->data = NULL; |
---|
712 | |
---|
713 | entry->sizeList = (*fromState)->sizeList; |
---|
714 | entry->stateId = stateId; |
---|
715 | |
---|
716 | sentStates[userId].push_back(entry); |
---|
717 | } |
---|
718 | |
---|
719 | } |
---|
720 | |
---|
721 | |
---|
722 | |
---|