[12175] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Oliver Scheuss, (C) 2008 |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "ClassID.h" |
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| 30 | |
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| 31 | #include <cassert> |
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| 32 | #include <cstdlib> |
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| 33 | #include <cstring> |
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| 34 | #include <map> |
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| 35 | #include <queue> |
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| 36 | #include <string> |
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| 37 | |
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| 38 | #include "core/CoreIncludes.h" |
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| 39 | |
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| 40 | namespace orxonox { |
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| 41 | namespace packet { |
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| 42 | |
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| 43 | |
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| 44 | #define PACKET_FLAGS_CLASSID PacketFlag::Reliable |
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| 45 | #define _PACKETID 0 |
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| 46 | |
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| 47 | |
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| 48 | ClassID::ClassID() : Packet() { |
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| 49 | Identifier *id; |
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| 50 | unsigned int nrOfClasses = 0; |
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| 51 | unsigned int packetSize = 2 * sizeof(uint32_t); //space for the packetID and for the nrofclasses |
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| 52 | uint32_t network_id; |
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| 53 | this->flags_ |= PACKET_FLAGS_CLASSID; |
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| 54 | std::queue<std::pair<uint32_t, std::string>> tempQueue; |
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| 55 | |
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| 56 | // calculate total needed size (for all strings and integers) |
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| 57 | for(const auto& mapEntry : IdentifierManager::getInstance().getIdentifierByStringMap()) { |
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| 58 | id = mapEntry.second; |
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| 59 | if(id == nullptr || !id->hasFactory()) |
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| 60 | continue; |
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| 61 | const std::string& classname = id->getName(); |
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| 62 | network_id = id->getNetworkID(); |
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| 63 | // now push the network id and the classname to the stack |
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| 64 | tempQueue.push( std::pair<unsigned int, std::string>(network_id, classname) ); |
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| 65 | ++nrOfClasses; |
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| 66 | packetSize += (classname.size() + 1) + sizeof(network_id) + sizeof(uint32_t); |
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| 67 | } |
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| 68 | |
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| 69 | this->data_ = new uint8_t[ packetSize ]; |
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| 70 | //set the appropriate packet id |
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| 71 | assert(this->data_); |
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| 72 | *(Type *)(this->data_ + _PACKETID ) = Type::ClassID; |
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| 73 | |
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| 74 | uint8_t *temp = this->data_ + sizeof(uint32_t); |
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| 75 | // save the number of all classes |
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| 76 | *(uint32_t*) temp = nrOfClasses; |
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| 77 | temp += sizeof(uint32_t); |
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| 78 | |
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| 79 | // now save all classids and classnames |
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| 80 | std::pair<uint32_t, std::string> tempPair; |
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| 81 | uint32_t tempsize = 2 * sizeof(uint32_t); // packetid and nrOfClasses |
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| 82 | while( !tempQueue.empty() ){ |
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| 83 | tempPair = tempQueue.front(); |
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| 84 | tempQueue.pop(); |
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| 85 | *(uint32_t*) temp = tempPair.first; |
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| 86 | *(uint32_t*) (temp+sizeof(uint32_t)) = tempPair.second.size() + 1; |
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| 87 | memcpy(temp + 2 * sizeof(uint32_t), tempPair.second.c_str(), tempPair.second.size() + 1); |
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| 88 | temp += 2 * sizeof(uint32_t) + tempPair.second.size() + 1; |
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| 89 | tempsize += 2 * sizeof(uint32_t) + tempPair.second.size() + 1; |
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| 90 | } |
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| 91 | assert(tempsize == packetSize); |
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| 92 | |
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| 93 | orxout(verbose_more, context::packets) << "classid packetSize is " << packetSize << endl; |
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| 94 | |
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| 95 | } |
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| 96 | |
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| 97 | ClassID::ClassID( uint8_t* data, unsigned int clientID ) |
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| 98 | : Packet(data, clientID) |
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| 99 | { |
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| 100 | } |
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| 101 | |
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| 102 | ClassID::~ClassID() |
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| 103 | { |
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| 104 | } |
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| 105 | |
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| 106 | uint32_t ClassID::getSize() const { |
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| 107 | uint8_t *temp = this->data_ + sizeof(uint32_t); // packet identification |
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| 108 | uint32_t totalsize = sizeof(uint32_t); // packet identification |
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| 109 | uint32_t nrOfClasses = *(uint32_t*) temp; |
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| 110 | temp += sizeof(uint32_t); |
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| 111 | totalsize += sizeof(uint32_t); // storage size for nr of all classes |
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| 112 | |
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| 113 | for(unsigned int i=0; i < nrOfClasses; i++) { |
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| 114 | totalsize += 2 * sizeof(uint32_t) + *(uint32_t*) (temp + sizeof(uint32_t)); |
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| 115 | temp += 2 * sizeof(uint32_t) + *(uint32_t*)(temp + sizeof(uint32_t)); |
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| 116 | } |
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| 117 | return totalsize; |
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| 118 | } |
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| 119 | |
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| 120 | bool ClassID::process(orxonox::Host* host) { |
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| 121 | int nrOfClasses; |
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| 122 | uint8_t *temp = this->data_ + sizeof(uint32_t); //skip the packetid |
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| 123 | uint32_t networkID; |
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| 124 | uint32_t stringsize; |
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| 125 | unsigned char *classname; |
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| 126 | |
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| 127 | //clear the map of network ids |
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| 128 | IdentifierManager::getInstance().clearNetworkIDs(); |
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| 129 | |
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| 130 | orxout(verbose, context::packets) << "=== processing classids: " << endl; |
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| 131 | std::pair<uint32_t, std::string> tempPair; |
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| 132 | Identifier *id; |
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| 133 | // read the total number of classes |
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| 134 | nrOfClasses = *(uint32_t*) temp; |
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| 135 | temp += sizeof(uint32_t); |
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| 136 | |
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| 137 | for( int i = 0; i < nrOfClasses; i++) { |
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| 138 | networkID = *(uint32_t*) temp; |
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| 139 | stringsize = *(uint32_t*) (temp + sizeof(uint32_t)); |
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| 140 | classname = temp + 2 * sizeof(uint32_t); |
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| 141 | id = ClassByString( std::string((const char*) classname) ); |
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| 142 | orxout(internal_info, context::packets) << "processing classid: " << networkID << " name: " << classname << " id: " << id << endl; |
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| 143 | if(id == nullptr) { |
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| 144 | orxout(user_error, context::packets) << "Received a bad classname" << endl; |
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| 145 | abort(); |
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| 146 | } |
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| 147 | id->setNetworkID( networkID ); |
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| 148 | temp += 2 * sizeof(uint32_t) + stringsize; |
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| 149 | } |
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| 150 | delete this; |
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| 151 | return true; |
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| 152 | } |
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| 153 | |
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| 154 | |
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| 155 | } //namespace packet |
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| 156 | }//namespace orxonox |
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