[7631] | 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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| 12 | main-programmer: Christoph Renner |
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| 13 | co-programmer: ... |
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| 14 | */ |
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| 15 | |
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| 16 | //#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_ |
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| 17 | |
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| 18 | #include "message_manager.h" |
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| 19 | |
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[8228] | 20 | #include "network_stream.h" |
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[8708] | 21 | #include "shared_network_data.h" |
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[9406] | 22 | #include "converter.h" |
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| 23 | #include <cassert> |
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[8228] | 24 | |
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[7631] | 25 | |
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[9406] | 26 | |
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[7671] | 27 | MessageManager* MessageManager::singletonRef = NULL; |
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[7631] | 28 | |
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[7671] | 29 | |
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[7631] | 30 | /** |
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| 31 | * standard constructor |
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| 32 | */ |
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| 33 | MessageManager::MessageManager () |
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| 34 | { |
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| 35 | this->setClassID( CL_MESSAGE_MANAGER, "MessageManager" ); |
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[7681] | 36 | newNumber = 1; |
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| 37 | setSynchronized( true ); |
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[7631] | 38 | } |
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| 39 | |
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| 40 | |
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| 41 | /** |
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| 42 | * standard deconstructor |
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| 43 | */ |
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| 44 | MessageManager::~MessageManager () |
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| 45 | { |
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[9508] | 46 | for ( MessageQueue::iterator it = outgoingMessageQueue.begin(); it != outgoingMessageQueue.end(); it++ ) |
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[7671] | 47 | { |
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| 48 | for ( std::list<NetworkMessage>::iterator it2 = it->second.messages.begin(); it2 != it->second.messages.end(); it2++ ) |
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| 49 | { |
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| 50 | if ( it2->data ) |
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| 51 | { |
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[8623] | 52 | delete [] it2->data; |
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[7671] | 53 | it2->data = NULL; |
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| 54 | } |
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| 55 | } |
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[9406] | 56 | |
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[7671] | 57 | it->second.messages.clear(); |
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| 58 | it->second.toAck.clear(); |
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| 59 | } |
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[9406] | 60 | |
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[9508] | 61 | outgoingMessageQueue.clear(); |
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[9406] | 62 | |
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[9059] | 63 | this->messageHandlerMap.clear(); |
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[9406] | 64 | |
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[9059] | 65 | MessageManager::singletonRef = NULL; |
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[7631] | 66 | } |
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| 67 | |
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| 68 | /** |
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| 69 | * get the diff to last acked state of userId |
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| 70 | * |
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[7671] | 71 | * this class does not use the normal SynchronizeableVars for zynchronisation. instead |
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| 72 | * it defines its own protocol |
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[7631] | 73 | * |
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| 74 | * @param userId user to create diff for |
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| 75 | * @param data buffer to copy diff in |
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| 76 | * @param maxLength max bytes to copy into data |
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| 77 | * @param stateId id of current state |
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| 78 | * @param fromStateId the reference state for the delta state |
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| 79 | * @param priorityTH tells getStateDiff to not send element with priority \< priorityTH |
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| 80 | * @return n bytes copied into data |
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| 81 | */ |
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| 82 | int MessageManager::getStateDiff( int userId, byte * data, int maxLength, int stateId, int fromStateId, int priorityTH ) |
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| 83 | { |
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[7671] | 84 | int i = 0; |
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| 85 | int n; |
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[9406] | 86 | |
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[9508] | 87 | n = Converter::intToByteArray( outgoingMessageQueue[userId].toAck.size(), data + i, maxLength ); |
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[7671] | 88 | i += n; |
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| 89 | assert( n == INTSIZE ); |
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[9406] | 90 | |
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[9508] | 91 | for ( std::list<int>::iterator it = outgoingMessageQueue[userId].toAck.begin(); it != outgoingMessageQueue[userId].toAck.end(); it++) |
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[7671] | 92 | { |
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| 93 | n = Converter::intToByteArray( *it, data + i, maxLength ); |
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| 94 | i += n; |
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| 95 | assert( n == INTSIZE ); |
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| 96 | } |
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[9406] | 97 | |
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[9508] | 98 | outgoingMessageQueue[userId].toAck.clear(); |
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[9406] | 99 | |
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[9508] | 100 | n = Converter::intToByteArray( outgoingMessageQueue[userId].messages.size(), data + i, maxLength ); |
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[7671] | 101 | i += n; |
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| 102 | assert( n == INTSIZE ); |
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[9406] | 103 | |
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[9520] | 104 | // write the message down, a message has this structure: |
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| 105 | // | data_length | serial_number | message_type | source_id | dest_id | ...data... | |
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| 106 | // 4byte 4byte 4byte 4byte 4byte data_length |
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[9508] | 107 | for ( std::list<NetworkMessage>::iterator it = outgoingMessageQueue[userId].messages.begin(); it != outgoingMessageQueue[userId].messages.end(); it++ ) |
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[7671] | 108 | { |
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[9524] | 109 | // send data length |
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[7671] | 110 | n = Converter::intToByteArray( it->length, data + i, maxLength ); |
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| 111 | i += n; |
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| 112 | assert( n == INTSIZE ); |
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[9406] | 113 | |
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[9524] | 114 | // send serial number |
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[7671] | 115 | n = Converter::intToByteArray( it->number, data + i, maxLength ); |
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| 116 | i += n; |
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| 117 | assert( n == INTSIZE ); |
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[9406] | 118 | |
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[9524] | 119 | // send message type |
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[9508] | 120 | n = Converter::intToByteArray( it->messageType, data + i, maxLength ); |
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[7671] | 121 | i += n; |
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| 122 | assert( n == INTSIZE ); |
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[9406] | 123 | |
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[9524] | 124 | // send sender id |
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[9520] | 125 | n = Converter::intToByteArray( it->senderId, data + i, maxLength ); |
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| 126 | i += n; |
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| 127 | assert( n == INTSIZE ); |
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| 128 | |
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[9524] | 129 | // send destination id |
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[9520] | 130 | n = Converter::intToByteArray( it->destinationId, data + i, maxLength ); |
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| 131 | i += n; |
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| 132 | assert( n == INTSIZE ); |
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| 133 | |
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[9524] | 134 | // send receiver type |
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| 135 | n = Converter::intToByteArray( it->recieverType, data + i, maxLength ); |
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| 136 | i += n; |
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| 137 | assert( n == INTSIZE ); |
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| 138 | |
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| 139 | // and copy the data |
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[7671] | 140 | assert( i + it->length <= maxLength ); |
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| 141 | memcpy( data + i, it->data, it->length ); |
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| 142 | i += it->length; |
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| 143 | } |
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[9406] | 144 | |
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[7671] | 145 | return i; |
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[7631] | 146 | } |
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| 147 | |
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| 148 | /** |
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| 149 | * sets a new state out of a diff created on another host |
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| 150 | * @param userId hostId of user who send me that diff |
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| 151 | * @param data pointer to diff |
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| 152 | * @param length length of diff |
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| 153 | * @param stateId id of current state |
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| 154 | * @param fromStateId id of the base state id |
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| 155 | * @return number bytes read |
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| 156 | * @todo check for permissions |
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| 157 | */ |
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| 158 | int MessageManager::setStateDiff( int userId, byte * data, int length, int stateId, int fromStateId ) |
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| 159 | { |
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[7671] | 160 | int i = 0; |
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| 161 | int n; |
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[9406] | 162 | |
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[7671] | 163 | int nAcks; |
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[9406] | 164 | |
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[9504] | 165 | |
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[7678] | 166 | assert( i + INTSIZE <= length ); |
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[7671] | 167 | n = Converter::byteArrayToInt( data + i, &nAcks ); |
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| 168 | assert( n == INTSIZE ); |
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| 169 | i += n; |
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[9406] | 170 | |
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[7671] | 171 | std::list<int> acks; |
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[9406] | 172 | |
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[7671] | 173 | int number; |
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[9406] | 174 | |
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[7671] | 175 | for ( int j = 0; j < nAcks; j++ ) |
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| 176 | { |
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[7678] | 177 | assert( i + INTSIZE <= length ); |
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[7671] | 178 | n = Converter::byteArrayToInt( data + i, &number ); |
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| 179 | assert( n == INTSIZE ); |
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| 180 | i += n; |
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[9406] | 181 | |
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[7671] | 182 | acks.push_back( number ); |
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| 183 | } |
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[9406] | 184 | |
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[7671] | 185 | int nMessages; |
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[9406] | 186 | |
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[7678] | 187 | assert( i + INTSIZE <= length ); |
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[7671] | 188 | n = Converter::byteArrayToInt( data + i, &nMessages ); |
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| 189 | assert( n == INTSIZE ); |
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| 190 | i += n; |
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[7678] | 191 | |
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[9508] | 192 | int messageLength, messageType; |
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[9524] | 193 | int senderId, destinationId, recieverType; |
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[9406] | 194 | |
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[9520] | 195 | // now go through all newly received messages and assemble them |
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[7671] | 196 | for ( int j = 0; j < nMessages; j++ ) |
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| 197 | { |
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[9520] | 198 | // read the length |
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[7678] | 199 | assert( i + INTSIZE <= length ); |
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| 200 | n = Converter::byteArrayToInt( data + i, &messageLength ); |
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| 201 | assert( n == INTSIZE ); |
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| 202 | i += n; |
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[9406] | 203 | |
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[9520] | 204 | // read the serial number |
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[7678] | 205 | assert( i + INTSIZE <= length ); |
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| 206 | n = Converter::byteArrayToInt( data + i, &number ); |
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| 207 | assert( n == INTSIZE ); |
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| 208 | i += n; |
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[9406] | 209 | |
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[9520] | 210 | // read the message type |
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[7678] | 211 | assert( i + INTSIZE <= length ); |
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[9508] | 212 | n = Converter::byteArrayToInt( data + i, &messageType ); |
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[7678] | 213 | assert( n == INTSIZE ); |
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| 214 | i += n; |
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[9406] | 215 | |
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[9520] | 216 | // read the sender id |
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| 217 | assert( i + INTSIZE <= length ); |
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| 218 | n = Converter::byteArrayToInt( data + i, &senderId ); |
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| 219 | assert( n == INTSIZE ); |
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| 220 | i += n; |
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| 221 | |
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| 222 | //read the destination id |
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| 223 | assert( i + INTSIZE <= length ); |
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| 224 | n = Converter::byteArrayToInt( data + i, &destinationId); |
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| 225 | assert( n == INTSIZE ); |
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| 226 | i += n; |
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| 227 | |
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[9524] | 228 | // read the receiver type |
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| 229 | assert( i + INTSIZE <= length ); |
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| 230 | n = Converter::byteArrayToInt( data + i, &recieverType); |
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| 231 | assert( n == INTSIZE ); |
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| 232 | i += n; |
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[9520] | 233 | |
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[7678] | 234 | if ( number > 0 ) |
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[9508] | 235 | outgoingMessageQueue[userId].toAck.push_back( number ); |
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[9406] | 236 | |
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[7678] | 237 | assert( i + messageLength <= length ); |
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[9508] | 238 | // make sure there is a message handler for this message type |
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| 239 | assert( messageHandlerMap.find( (MessageType)messageType ) != messageHandlerMap.end() ); |
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| 240 | |
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| 241 | |
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| 242 | if ( std::find( outgoingMessageQueue[userId].recievedMessages.begin(), outgoingMessageQueue[userId].recievedMessages.end(), number ) == |
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| 243 | outgoingMessageQueue[userId].recievedMessages.end() ) |
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[7681] | 244 | { |
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[9522] | 245 | |
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| 246 | // find out if this message is addressed for this client too |
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| 247 | if( messageType == RT_ALL_BUT_ME || |
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| 248 | messageType == RT_ALL_ME || |
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[9523] | 249 | messageType == RT_NOT_USER && SharedNetworkData::getInstance()->getHostID() != destinationId || |
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[9522] | 250 | messageType == RT_USER && SharedNetworkData::getInstance()->getHostID() == destinationId || |
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| 251 | messageType == RT_SERVER && SharedNetworkData::getInstance()->isMasterServer()) |
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| 252 | { |
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| 253 | |
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[9519] | 254 | // call the handler function and handle errors |
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[9522] | 255 | if ( !(*(messageHandlerMap[(MessageType)messageType].cb))( (MessageType)messageType, data + i, messageLength, |
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| 256 | messageHandlerMap[(MessageType)messageType].someData, senderId, destinationId ) ) |
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| 257 | { |
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| 258 | // if the message is not handled correctly, bush it back to the incoming packets |
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| 259 | NetworkMessage msg; |
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| 260 | |
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| 261 | msg.data = new byte[messageLength]; |
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| 262 | memcpy( msg.data, data + i, messageLength ); |
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| 263 | msg.length = messageLength; |
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| 264 | msg.messageType = (MessageType)messageType; |
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| 265 | msg.number = userId; |
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| 266 | msg.senderId = senderId; |
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[9524] | 267 | msg.recieverType = (RecieverType)recieverType; |
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[9522] | 268 | msg.destinationId = destinationId; |
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| 269 | |
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| 270 | incomingMessageQueue.push_back( msg ); |
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| 271 | } |
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| 272 | PRINTF(0)("<<< MessageManager: got msg with type: %i, from sender %i, to rec: %i\n", messageType, senderId, destinationId); |
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| 273 | } |
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| 274 | // or else forward the message to the other servers |
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| 275 | else |
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[7693] | 276 | { |
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[9523] | 277 | // forwarding the messages but only if its not a client |
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| 278 | if( !SharedNetworkData::getInstance()->isClient()) |
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| 279 | { |
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[9526] | 280 | PRINTF(0)("===========>> Forwarding Message msg with type: %i, from sender %i, to rec: %i\n", messageType, senderId, destinationId); |
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[9523] | 281 | NetworkMessage msg; |
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[9406] | 282 | |
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[9523] | 283 | msg.data = new byte[messageLength]; |
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| 284 | memcpy( msg.data, data + i, messageLength ); |
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| 285 | msg.length = messageLength; |
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| 286 | msg.messageType = (MessageType)messageType; |
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| 287 | msg.number = userId; |
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| 288 | msg.senderId = senderId; |
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| 289 | msg.destinationId = destinationId; |
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[9524] | 290 | msg.recieverType = (RecieverType)recieverType; |
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[9406] | 291 | |
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[9525] | 292 | // this->sendMessage(msg.messageType, msg.data, msg.length, msg.recieverType, msg.destinationId, MP_HIGHBANDWIDTH); |
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[9523] | 293 | } |
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[7693] | 294 | } |
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[9527] | 295 | |
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| 296 | // save the serial number for ack signaling |
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| 297 | outgoingMessageQueue[userId].recievedMessages.push_back( number ); |
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[7681] | 298 | } |
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[9522] | 299 | |
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[7678] | 300 | i += messageLength; |
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[7671] | 301 | } |
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[9406] | 302 | |
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[9514] | 303 | // now call the message handlers with the new message |
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[8708] | 304 | //TODO maybe handle incomingMessage in tick function. else local messages will not be handled if no clients are connected |
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[9508] | 305 | for ( std::list<NetworkMessage>::iterator it = incomingMessageQueue.begin(); it != incomingMessageQueue.end(); ) |
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[7693] | 306 | { |
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[9521] | 307 | if ( (*(messageHandlerMap[it->messageType].cb))( it->messageType, it->data, it->length, messageHandlerMap[it->messageType].someData, |
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| 308 | /*it->number, */it->senderId, it->destinationId ) ) |
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[7693] | 309 | { |
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| 310 | std::list<NetworkMessage>::iterator delIt = it; |
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[7697] | 311 | if ( it->data ) |
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| 312 | delete it->data; |
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[7693] | 313 | it++; |
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[9508] | 314 | incomingMessageQueue.erase( delIt ); |
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[7693] | 315 | continue; |
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| 316 | } |
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| 317 | it++; |
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| 318 | } |
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[9406] | 319 | |
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[7681] | 320 | //walk throu message queue and remove acked messages |
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[9508] | 321 | for ( std::list<NetworkMessage>::iterator it = outgoingMessageQueue[userId].messages.begin(); it != outgoingMessageQueue[userId].messages.end(); ) |
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[7681] | 322 | { |
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| 323 | if ( std::find( acks.begin(), acks.end(), it->number) != acks.end() ) |
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| 324 | { |
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| 325 | std::list<NetworkMessage>::iterator delIt = it; |
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| 326 | it++; |
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[9508] | 327 | outgoingMessageQueue[userId].messages.erase( delIt ); |
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[7681] | 328 | continue; |
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| 329 | } |
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| 330 | it++; |
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| 331 | } |
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[9406] | 332 | |
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[7681] | 333 | //TODO find bether way. maybe with timestamp |
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[9508] | 334 | if ( outgoingMessageQueue[userId].recievedMessages.size() > 1000 ) |
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[7681] | 335 | { |
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[9508] | 336 | for ( int j = 0; j < outgoingMessageQueue[userId].recievedMessages.size() - 1000; j++ ) |
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| 337 | outgoingMessageQueue[userId].recievedMessages.erase( outgoingMessageQueue[userId].recievedMessages.begin() ); |
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[7681] | 338 | } |
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[7678] | 339 | |
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| 340 | return i; |
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[7631] | 341 | } |
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| 342 | |
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[9504] | 343 | |
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| 344 | |
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[7631] | 345 | /** |
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| 346 | * clean up memory reserved for user |
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| 347 | * @param userId userid |
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| 348 | */ |
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| 349 | void MessageManager::cleanUpUser( int userId ) |
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| 350 | { |
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[9508] | 351 | if ( outgoingMessageQueue.find( userId ) == outgoingMessageQueue.end() ) |
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[7678] | 352 | return; |
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[9406] | 353 | |
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[9508] | 354 | for ( std::list<NetworkMessage>::iterator it = outgoingMessageQueue[userId].messages.begin(); it != outgoingMessageQueue[userId].messages.end(); it++ ) |
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[7678] | 355 | { |
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| 356 | if ( it->data ) |
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| 357 | delete it->data; |
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| 358 | it->data = NULL; |
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| 359 | } |
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[9406] | 360 | |
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[9508] | 361 | outgoingMessageQueue[userId].toAck.clear(); |
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[9406] | 362 | |
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[9508] | 363 | outgoingMessageQueue.erase( userId ); |
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[7631] | 364 | } |
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[7671] | 365 | |
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| 366 | /** |
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[9508] | 367 | * registers function to handle messages with id messageType. someData is passed to callbackfuntion |
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| 368 | * @param messageType message id to handle |
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[7671] | 369 | * @param cb function pointer to callback function |
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| 370 | * @param someData this pointer is passed to callback function without modification |
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| 371 | * @return true on success |
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| 372 | */ |
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[9508] | 373 | bool MessageManager::registerMessageHandler( MessageType messageType, MessageCallback cb, void * someData ) |
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[7671] | 374 | { |
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[7678] | 375 | MessageHandler messageHandler; |
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[9406] | 376 | |
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[7678] | 377 | messageHandler.cb = cb; |
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[9508] | 378 | messageHandler.messageType = messageType; |
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[7678] | 379 | messageHandler.someData = someData; |
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[9406] | 380 | |
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[9508] | 381 | messageHandlerMap[messageType] = messageHandler; |
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[9406] | 382 | |
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[7678] | 383 | return true; |
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[7671] | 384 | } |
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| 385 | |
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| 386 | /** |
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| 387 | * initializes buffers for user |
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| 388 | * @param userId userId |
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| 389 | */ |
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| 390 | void MessageManager::initUser( int userId ) |
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| 391 | { |
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[7678] | 392 | // just do something so map creates a new entry |
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[9508] | 393 | outgoingMessageQueue[userId].toAck.clear(); |
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| 394 | //assert( outgoingMessageQueue[userId].messages.size() == 0 ); |
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[7671] | 395 | } |
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[7681] | 396 | |
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| 397 | /** |
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| 398 | * send a message to one or more clients |
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| 399 | * recieverType: |
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| 400 | * RT_ALL send to all users. reciever is ignored |
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| 401 | * RT_USER send only to reciever |
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| 402 | * RT_NOT_USER send to all but reciever |
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| 403 | * |
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[9508] | 404 | * @param messageType message id |
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[7681] | 405 | * @param data pointer to data |
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| 406 | * @param dataLength length of data |
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[9508] | 407 | * @param recieverType type of the receiver |
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| 408 | * @param reciever the userId of the receiver if needed (depends on the ReceiverType) |
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[7681] | 409 | */ |
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[9508] | 410 | void MessageManager::sendMessage( MessageType messageType, byte * data, int dataLength, RecieverType recieverType, int reciever, MessagePriority messagePriority ) |
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[7681] | 411 | { |
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[9515] | 412 | PRINTF(0)(" >>> MessageManager: sending msg with type: %i, recieverType: %i, reciever %i\n", messageType, recieverType, reciever); |
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| 413 | |
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[9509] | 414 | // go through all outgoing message queues and add the message if its appropriate |
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[9508] | 415 | for ( MessageQueue::iterator it = this->outgoingMessageQueue.begin(); it != this->outgoingMessageQueue.end(); it++ ) |
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[7681] | 416 | { |
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[9511] | 417 | |
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[9512] | 418 | // relay server special handling |
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[9511] | 419 | if( SharedNetworkData::getInstance()->isMasterServer() && SharedNetworkData::getInstance()->isUserProxyServerActive(it->first)) |
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[7681] | 420 | { |
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| 421 | NetworkMessage msg; |
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[8623] | 422 | |
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[7681] | 423 | msg.data = new byte[dataLength]; |
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| 424 | memcpy( msg.data, data, dataLength ); |
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| 425 | msg.length = dataLength; |
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[9508] | 426 | msg.messageType = messageType; |
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[9509] | 427 | msg.number = this->newNumber++; |
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[9519] | 428 | msg.senderId = SharedNetworkData::getInstance()->getHostID(); |
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| 429 | msg.destinationId = reciever; |
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[9524] | 430 | msg.recieverType = recieverType; |
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[7681] | 431 | msg.priority = messagePriority; |
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[8623] | 432 | |
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[7681] | 433 | it->second.messages.push_back( msg ); |
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| 434 | } |
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[9512] | 435 | // proxy server to master server |
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| 436 | else if( SharedNetworkData::getInstance()->isProxyServerActive() && SharedNetworkData::getInstance()->isUserMasterServer(it->first)) |
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| 437 | { |
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| 438 | NetworkMessage msg; |
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| 439 | |
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| 440 | msg.data = new byte[dataLength]; |
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| 441 | memcpy( msg.data, data, dataLength ); |
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| 442 | msg.length = dataLength; |
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| 443 | msg.messageType = messageType; |
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| 444 | msg.number = this->newNumber++; |
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[9519] | 445 | msg.senderId = SharedNetworkData::getInstance()->getHostID(); |
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| 446 | msg.destinationId = reciever; |
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[9524] | 447 | msg.recieverType = recieverType; |
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[9512] | 448 | msg.priority = messagePriority; |
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| 449 | |
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| 450 | it->second.messages.push_back( msg ); |
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| 451 | } |
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[9511] | 452 | // check for every node if the message is for it also |
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| 453 | else if ( |
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| 454 | recieverType == RT_ALL_ME || |
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| 455 | recieverType == RT_ALL_BUT_ME || |
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| 456 | recieverType == RT_USER && it->first == reciever || |
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| 457 | recieverType == RT_NOT_USER && it->first != reciever || |
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| 458 | recieverType == RT_SERVER && getNetworkStream()->isUserMasterServer( it->first ) || |
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| 459 | recieverType == RT_SERVER && getNetworkStream()->isUserProxyServerActive( it->first ) |
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| 460 | ) |
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[9509] | 461 | { |
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| 462 | NetworkMessage msg; |
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| 463 | |
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| 464 | msg.data = new byte[dataLength]; |
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| 465 | memcpy( msg.data, data, dataLength ); |
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| 466 | msg.length = dataLength; |
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| 467 | msg.messageType = messageType; |
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| 468 | msg.number = this->newNumber++; |
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[9519] | 469 | msg.senderId = SharedNetworkData::getInstance()->getHostID(); |
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| 470 | msg.destinationId = reciever; |
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[9524] | 471 | msg.recieverType = recieverType; |
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[9509] | 472 | msg.priority = messagePriority; |
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| 473 | |
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| 474 | it->second.messages.push_back( msg ); |
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| 475 | } |
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[9511] | 476 | |
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| 477 | |
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[7681] | 478 | } |
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[9406] | 479 | |
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[9509] | 480 | |
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| 481 | // if the message is also for myself, handle it here |
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[8623] | 482 | if ( recieverType == RT_ALL_ME ) |
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| 483 | { |
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| 484 | NetworkMessage msg; |
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| 485 | |
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| 486 | msg.data = new byte[dataLength]; |
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| 487 | memcpy( msg.data, data, dataLength ); |
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| 488 | msg.length = dataLength; |
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[9508] | 489 | msg.messageType = messageType; |
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[8708] | 490 | msg.number = SharedNetworkData::getInstance()->getHostID(); |
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[9519] | 491 | msg.senderId = SharedNetworkData::getInstance()->getHostID(); |
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| 492 | msg.destinationId = reciever; |
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[9524] | 493 | msg.recieverType = recieverType; |
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[8623] | 494 | msg.priority = messagePriority; |
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| 495 | |
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[9508] | 496 | incomingMessageQueue.push_back( msg ); |
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[8623] | 497 | } |
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[7681] | 498 | } |
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| 499 | |
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| 500 | |
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