[1282] | 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) 2007 |
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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 | // |
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| 30 | // C++ Interface: ConnectionManager |
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| 31 | // |
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| 32 | // Description: The Class ConnectionManager manages the servers conenctions to the clients. |
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| 33 | // each connection is provided by a new process. communication between master process and |
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| 34 | // connection processes is provided by ... |
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| 35 | // |
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| 36 | // |
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| 37 | // Author: Oliver Scheuss |
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| 38 | // |
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| 39 | |
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| 40 | #include <iostream> |
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| 41 | // boost.thread library for multithreading support |
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| 42 | #include <boost/bind.hpp> |
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| 43 | |
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| 44 | #include "core/CoreIncludes.h" |
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| 45 | #include "core/BaseObject.h" |
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[1409] | 46 | #include "objects/SpaceShip.h" |
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[1282] | 47 | #include "util/Math.h" |
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| 48 | #include "ClientInformation.h" |
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| 49 | #include "ConnectionManager.h" |
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| 50 | #include "Synchronisable.h" |
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| 51 | |
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| 52 | namespace std |
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| 53 | { |
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| 54 | bool operator< (ENetAddress a, ENetAddress b) { |
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| 55 | if(a.host <= b.host) |
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| 56 | return true; |
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| 57 | else |
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| 58 | return false; |
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| 59 | } |
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| 60 | } |
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| 61 | |
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| 62 | namespace network |
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| 63 | { |
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| 64 | //boost::thread_group network_threads; |
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| 65 | |
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| 66 | ConnectionManager::ConnectionManager():receiverThread_(0){} |
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[1491] | 67 | boost::recursive_mutex ConnectionManager::enet_mutex_; |
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[1282] | 68 | |
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| 69 | ConnectionManager::ConnectionManager(ClientInformation *head) : receiverThread_(0) { |
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| 70 | quit=false; |
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| 71 | bindAddress.host = ENET_HOST_ANY; |
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| 72 | bindAddress.port = NETWORK_PORT; |
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| 73 | head_ = head; |
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| 74 | } |
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[1379] | 75 | |
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| 76 | ConnectionManager::ConnectionManager(ClientInformation *head, int port){ |
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| 77 | quit=false; |
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| 78 | bindAddress.host = ENET_HOST_ANY; |
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| 79 | bindAddress.port = port; |
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| 80 | head_ = head; |
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| 81 | } |
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[1282] | 82 | |
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| 83 | ConnectionManager::ConnectionManager(int port, std::string address, ClientInformation *head) :receiverThread_(0) { |
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| 84 | quit=false; |
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| 85 | enet_address_set_host (& bindAddress, address.c_str()); |
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| 86 | bindAddress.port = NETWORK_PORT; |
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| 87 | head_ = head; |
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| 88 | } |
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| 89 | |
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| 90 | ConnectionManager::ConnectionManager(int port, const char *address, ClientInformation *head) : receiverThread_(0) { |
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| 91 | quit=false; |
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| 92 | enet_address_set_host (& bindAddress, address); |
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| 93 | bindAddress.port = NETWORK_PORT; |
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| 94 | head_ = head; |
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| 95 | } |
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| 96 | |
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[1409] | 97 | /*ENetPacket *ConnectionManager::getPacket(ENetAddress &address) { |
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[1282] | 98 | if(!buffer.isEmpty()) |
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| 99 | return buffer.pop(address); |
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| 100 | else |
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| 101 | return NULL; |
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[1409] | 102 | }*/ |
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[1282] | 103 | /** |
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| 104 | This function only pops the first element in PacketBuffer (first in first out) |
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| 105 | used by processQueue in Server.cc |
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| 106 | */ |
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[1409] | 107 | /*ENetPacket *ConnectionManager::getPacket(int &clientID) { |
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[1282] | 108 | ENetAddress address; |
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| 109 | ENetPacket *packet=getPacket(address); |
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| 110 | ClientInformation *temp =head_->findClient(&address); |
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[1360] | 111 | if(!temp) |
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| 112 | return NULL; |
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[1282] | 113 | clientID=temp->getID(); |
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| 114 | return packet; |
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[1409] | 115 | }*/ |
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| 116 | |
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| 117 | ENetEvent *ConnectionManager::getEvent(){ |
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| 118 | if(!buffer.isEmpty()) |
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| 119 | return buffer.pop(); |
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| 120 | else |
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| 121 | return NULL; |
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[1282] | 122 | } |
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| 123 | |
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| 124 | bool ConnectionManager::queueEmpty() { |
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| 125 | return buffer.isEmpty(); |
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| 126 | } |
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| 127 | |
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| 128 | void ConnectionManager::createListener() { |
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| 129 | receiverThread_ = new boost::thread(boost::bind(&ConnectionManager::receiverThread, this)); |
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| 130 | //network_threads.create_thread(boost::bind(boost::mem_fn(&ConnectionManager::receiverThread), this)); |
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| 131 | //boost::thread thr(boost::bind(boost::mem_fn(&ConnectionManager::receiverThread), this)); |
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| 132 | return; |
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| 133 | } |
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| 134 | |
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| 135 | bool ConnectionManager::quitListener() { |
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| 136 | quit=true; |
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| 137 | //network_threads.join_all(); |
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| 138 | receiverThread_->join(); |
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| 139 | return true; |
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| 140 | } |
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| 141 | |
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| 142 | bool ConnectionManager::addPacket(ENetPacket *packet, ENetPeer *peer) { |
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[1360] | 143 | ClientInformation *temp = head_->findClient(&(peer->address)); |
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| 144 | if(!temp) |
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[1282] | 145 | return false; |
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[1491] | 146 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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[1360] | 147 | if(enet_peer_send(peer, (enet_uint8)temp->getID() , packet)!=0) |
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| 148 | return false; |
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[1282] | 149 | return true; |
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| 150 | } |
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| 151 | |
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| 152 | bool ConnectionManager::addPacket(ENetPacket *packet, int clientID) { |
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[1360] | 153 | ClientInformation *temp = head_->findClient(clientID); |
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| 154 | if(!temp) |
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[1282] | 155 | return false; |
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[1491] | 156 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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[1360] | 157 | if(enet_peer_send(temp->getPeer(), (enet_uint8)clientID, packet)!=0) |
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| 158 | return false; |
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[1282] | 159 | return true; |
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| 160 | } |
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| 161 | |
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| 162 | bool ConnectionManager::addPacketAll(ENetPacket *packet) { |
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[1491] | 163 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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[1282] | 164 | for(ClientInformation *i=head_->next(); i!=0; i=i->next()){ |
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| 165 | if(enet_peer_send(i->getPeer(), (enet_uint8)i->getID(), packet)!=0) |
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| 166 | return false; |
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| 167 | } |
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| 168 | return true; |
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| 169 | } |
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| 170 | |
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| 171 | bool ConnectionManager::sendPackets() { |
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| 172 | if(server==NULL) |
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| 173 | return false; |
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[1491] | 174 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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[1378] | 175 | enet_host_flush(server); |
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[1492] | 176 | lock.unlock(); |
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[1378] | 177 | return true; |
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[1282] | 178 | } |
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| 179 | |
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| 180 | void ConnectionManager::receiverThread() { |
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| 181 | // what about some error-handling here ? |
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[1409] | 182 | ENetEvent *event; |
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[1282] | 183 | atexit(enet_deinitialize); |
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[1491] | 184 | { //scope of the mutex |
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| 185 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 186 | enet_initialize(); |
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| 187 | server = enet_host_create(&bindAddress, NETWORK_MAX_CONNECTIONS, 0, 0); |
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[1492] | 188 | lock.unlock(); |
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[1491] | 189 | } |
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[1282] | 190 | if(server==NULL){ |
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| 191 | // add some error handling here ========================== |
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| 192 | quit=true; |
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| 193 | return; |
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| 194 | } |
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| 195 | |
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| 196 | while(!quit){ |
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[1409] | 197 | event = new ENetEvent; |
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[1491] | 198 | { //mutex scope |
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| 199 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 200 | if(enet_host_service(server, event, NETWORK_WAIT_TIMEOUT)<0){ |
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| 201 | // we should never reach this point |
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| 202 | quit=true; |
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| 203 | continue; |
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| 204 | // add some error handling here ======================== |
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| 205 | } |
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[1492] | 206 | lock.unlock(); |
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[1282] | 207 | } |
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| 208 | switch(event->type){ |
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| 209 | // log handling ================ |
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| 210 | case ENET_EVENT_TYPE_CONNECT: |
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[1409] | 211 | COUT(3) << "adding event_type_connect to queue" << std::endl; |
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| 212 | case ENET_EVENT_TYPE_DISCONNECT: |
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| 213 | //addClient(event); |
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[1282] | 214 | //this is a workaround to ensure thread safety |
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[1409] | 215 | //COUT(5) << "Con.Man: connection event has occured" << std::endl; |
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| 216 | //break; |
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[1282] | 217 | case ENET_EVENT_TYPE_RECEIVE: |
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| 218 | //std::cout << "received data" << std::endl; |
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| 219 | COUT(5) << "Con.Man: receive event has occured" << std::endl; |
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| 220 | // only add, if client has connected yet and not been disconnected |
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[1409] | 221 | //if(head_->findClient(&event->peer->address)) |
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[1282] | 222 | processData(event); |
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[1409] | 223 | // else |
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| 224 | // COUT(3) << "received a packet from a client we don't know" << std::endl; |
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[1282] | 225 | break; |
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[1409] | 226 | //case ENET_EVENT_TYPE_DISCONNECT: |
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| 227 | //clientDisconnect(event->peer); |
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| 228 | //break; |
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[1282] | 229 | case ENET_EVENT_TYPE_NONE: |
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[1409] | 230 | delete event; |
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[1492] | 231 | receiverThread_->yield(); |
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[1282] | 232 | break; |
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| 233 | } |
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| 234 | // usleep(100); |
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[1378] | 235 | //receiverThread_->yield(); //TODO: find apropriate |
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[1282] | 236 | } |
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| 237 | disconnectClients(); |
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| 238 | // if we're finishied, destroy server |
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[1491] | 239 | { |
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| 240 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 241 | enet_host_destroy(server); |
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[1492] | 242 | lock.unlock(); |
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[1491] | 243 | } |
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[1282] | 244 | } |
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| 245 | |
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| 246 | //### added some bugfixes here, but we cannot test them because |
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| 247 | //### the server crashes everytime because of some gamestates |
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| 248 | //### (trying to resolve that now) |
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| 249 | void ConnectionManager::disconnectClients() { |
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| 250 | ENetEvent event; |
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| 251 | ClientInformation *temp = head_->next(); |
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| 252 | while(temp!=0){ |
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[1491] | 253 | { |
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| 254 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 255 | enet_peer_disconnect(temp->getPeer(), 0); |
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[1492] | 256 | lock.unlock(); |
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[1491] | 257 | } |
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[1282] | 258 | temp = temp->next(); |
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| 259 | } |
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| 260 | //bugfix: might be the reason why server crashes when clients disconnects |
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| 261 | temp = head_->next(); |
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[1491] | 262 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 263 | while( temp!=0 && enet_host_service(server, &event, NETWORK_WAIT_TIMEOUT) >= 0){ |
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[1282] | 264 | switch (event.type) |
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| 265 | { |
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| 266 | case ENET_EVENT_TYPE_NONE: break; |
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| 267 | case ENET_EVENT_TYPE_CONNECT: break; |
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| 268 | case ENET_EVENT_TYPE_RECEIVE: |
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| 269 | enet_packet_destroy(event.packet); |
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| 270 | break; |
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| 271 | case ENET_EVENT_TYPE_DISCONNECT: |
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| 272 | COUT(4) << "disconnecting all clients" << std::endl; |
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[1360] | 273 | if(head_->findClient(&(event.peer->address))) |
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| 274 | delete head_->findClient(&(event.peer->address)); |
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[1282] | 275 | //maybe needs bugfix: might also be a reason for the server to crash |
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| 276 | temp = temp->next(); |
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| 277 | break; |
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| 278 | } |
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| 279 | } |
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| 280 | return; |
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| 281 | } |
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| 282 | |
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| 283 | bool ConnectionManager::processData(ENetEvent *event) { |
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| 284 | // just add packet to the buffer |
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| 285 | // this can be extended with some preprocessing |
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| 286 | return buffer.push(event); |
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| 287 | } |
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| 288 | |
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| 289 | /** |
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| 290 | This function adds a client that connects to the clientlist of the server |
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| 291 | NOTE: if you change this, don't forget to change the test function |
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| 292 | addClientTest in diffTest.cc since addClient is not good for testing because of syncClassid |
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| 293 | */ |
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[1409] | 294 | /*bool ConnectionManager::addClient(ENetEvent *event) { |
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[1282] | 295 | ClientInformation *temp = head_->insertBack(new ClientInformation); |
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[1360] | 296 | if(!temp){ |
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| 297 | COUT(2) << "Conn.Man. could not add client" << std::endl; |
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| 298 | return false; |
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| 299 | } |
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| 300 | if(temp->prev()->getHead()) { //not good if you use anything else than insertBack |
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[1282] | 301 | temp->prev()->setID(0); //bugfix: not necessary but usefull |
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| 302 | temp->setID(1); |
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| 303 | } |
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| 304 | else |
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| 305 | temp->setID(temp->prev()->getID()+1); |
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| 306 | temp->setPeer(event->peer); |
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[1360] | 307 | COUT(3) << "Con.Man: added client id: " << temp->getID() << std::endl; |
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[1282] | 308 | return true; |
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[1409] | 309 | }*/ |
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[1282] | 310 | |
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| 311 | int ConnectionManager::getClientID(ENetPeer peer) { |
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| 312 | return getClientID(peer.address); |
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| 313 | } |
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| 314 | |
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| 315 | int ConnectionManager::getClientID(ENetAddress address) { |
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| 316 | return head_->findClient(&address)->getID(); |
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| 317 | } |
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| 318 | |
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| 319 | ENetPeer *ConnectionManager::getClientPeer(int clientID) { |
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| 320 | return head_->findClient(clientID)->getPeer(); |
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| 321 | } |
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| 322 | |
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| 323 | void ConnectionManager::syncClassid(int clientID) { |
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[1360] | 324 | unsigned int network_id=0, failures=0; |
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[1282] | 325 | std::string classname; |
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| 326 | orxonox::Identifier *id; |
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| 327 | std::map<std::string, orxonox::Identifier*>::const_iterator it = orxonox::Factory::getFactoryBegin(); |
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| 328 | while(it != orxonox::Factory::getFactoryEnd()){ |
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| 329 | id = (*it).second; |
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| 330 | if(id == NULL) |
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| 331 | continue; |
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| 332 | classname = id->getName(); |
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| 333 | network_id = id->getNetworkID(); |
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[1360] | 334 | if(network_id==0) |
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| 335 | COUT(3) << "we got a null class id: " << id->getName() << std::endl; |
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[1282] | 336 | COUT(4) << "Con.Man:syncClassid:\tnetwork_id: " << network_id << ", classname: " << classname << std::endl; |
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| 337 | |
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[1360] | 338 | while(!addPacket(packet_gen.clid( (int)network_id, classname ), clientID) && failures < 10){ |
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| 339 | failures++; |
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| 340 | } |
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[1282] | 341 | ++it; |
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| 342 | } |
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| 343 | sendPackets(); |
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| 344 | COUT(4) << "syncClassid:\tall synchClassID packets have been sent" << std::endl; |
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| 345 | } |
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| 346 | |
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[1409] | 347 | /*bool ConnectionManager::createClient(int clientID){ |
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[1282] | 348 | ClientInformation *temp = head_->findClient(clientID); |
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[1360] | 349 | if(!temp){ |
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| 350 | COUT(2) << "Conn.Man. could not create client with id: " << clientID << std::endl; |
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| 351 | return false; |
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| 352 | } |
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[1282] | 353 | COUT(4) << "Con.Man: creating client id: " << temp->getID() << std::endl; |
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| 354 | syncClassid(temp->getID()); |
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| 355 | COUT(4) << "creating spaceship for clientid: " << temp->getID() << std::endl; |
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[1497] | 356 | // TODO: this is only a hack, until we have a possibility to define default player-join actions |
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[1360] | 357 | if(!createShip(temp)) |
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| 358 | COUT(2) << "Con.Man. could not create ship for clientid: " << clientID << std::endl; |
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| 359 | else |
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| 360 | COUT(3) << "created spaceship" << std::endl; |
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[1282] | 361 | temp->setSynched(true); |
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[1360] | 362 | COUT(3) << "sending welcome" << std::endl; |
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[1282] | 363 | sendWelcome(temp->getID(), temp->getShipID(), true); |
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| 364 | return true; |
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[1409] | 365 | }*/ |
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[1282] | 366 | |
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[1409] | 367 | /*bool ConnectionManager::removeClient(int clientID){ |
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[1389] | 368 | boost::recursive_mutex::scoped_lock lock(head_->mutex_); |
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[1282] | 369 | orxonox::Iterator<orxonox::SpaceShip> it = orxonox::ObjectList<orxonox::SpaceShip>::start(); |
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[1360] | 370 | ClientInformation *client = head_->findClient(clientID); |
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| 371 | if(!client) |
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| 372 | return false; |
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[1282] | 373 | while(it){ |
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[1360] | 374 | if(it->objectID!=client->getShipID()){ |
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[1282] | 375 | ++it; |
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| 376 | continue; |
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| 377 | } |
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| 378 | orxonox::Iterator<orxonox::SpaceShip> temp=it; |
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| 379 | ++it; |
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| 380 | delete *temp; |
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| 381 | return head_->removeClient(clientID); |
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| 382 | } |
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| 383 | return false; |
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[1409] | 384 | }*/ |
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[1282] | 385 | |
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[1409] | 386 | /* bool ConnectionManager::createShip(ClientInformation *client){ |
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[1360] | 387 | if(!client) |
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| 388 | return false; |
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[1282] | 389 | orxonox::Identifier* id = ID("SpaceShip"); |
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| 390 | if(!id){ |
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| 391 | COUT(4) << "We could not create the SpaceShip for client: " << client->getID() << std::endl; |
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| 392 | return false; |
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| 393 | } |
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| 394 | orxonox::SpaceShip *no = dynamic_cast<orxonox::SpaceShip *>(id->fabricate()); |
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[1389] | 395 | no->setPosition(orxonox::Vector3(0,0,80)); |
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[1282] | 396 | no->setScale(10); |
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[1389] | 397 | //no->setYawPitchRoll(orxonox::Degree(-90),orxonox::Degree(-90),orxonox::Degree(0)); |
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[1282] | 398 | no->setMesh("assff.mesh"); |
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| 399 | no->setMaxSpeed(500); |
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| 400 | no->setMaxSideAndBackSpeed(50); |
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| 401 | no->setMaxRotation(1.0); |
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| 402 | no->setTransAcc(200); |
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| 403 | no->setRotAcc(3.0); |
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| 404 | no->setTransDamp(75); |
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| 405 | no->setRotDamp(1.0); |
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| 406 | no->setCamera("cam_"+client->getID()); |
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[1360] | 407 | no->classID = id->getNetworkID(); |
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[1282] | 408 | no->create(); |
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| 409 | |
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| 410 | client->setShipID(no->objectID); |
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| 411 | return true; |
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[1409] | 412 | }*/ |
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[1282] | 413 | |
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| 414 | bool ConnectionManager::removeShip(ClientInformation *client){ |
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| 415 | int id=client->getShipID(); |
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| 416 | orxonox::Iterator<orxonox::SpaceShip> it; |
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| 417 | for(it = orxonox::ObjectList<orxonox::SpaceShip>::start(); it; ++it){ |
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| 418 | if(it->objectID!=id) |
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| 419 | continue; |
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| 420 | delete *it; |
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| 421 | } |
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| 422 | return true; |
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| 423 | } |
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| 424 | |
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| 425 | bool ConnectionManager::sendWelcome(int clientID, int shipID, bool allowed){ |
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[1360] | 426 | if(addPacket(packet_gen.generateWelcome(clientID, shipID, allowed),clientID)){ |
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| 427 | sendPackets(); |
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| 428 | return true; |
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| 429 | }else |
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| 430 | return false; |
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[1282] | 431 | } |
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| 432 | |
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| 433 | void ConnectionManager::disconnectClient(ClientInformation *client){ |
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[1491] | 434 | { |
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| 435 | boost::recursive_mutex::scoped_lock lock(enet_mutex_); |
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| 436 | enet_peer_disconnect(client->getPeer(), 0); |
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[1492] | 437 | lock.unlock(); |
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[1491] | 438 | } |
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[1282] | 439 | removeShip(client); |
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| 440 | } |
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| 441 | |
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| 442 | bool ConnectionManager::addFakeConnectRequest(ENetEvent *ev){ |
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| 443 | ENetEvent event; |
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| 444 | event.peer=ev->peer; |
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| 445 | event.packet = packet_gen.generateConnectRequest(); |
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| 446 | return buffer.push(&event); |
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| 447 | } |
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| 448 | |
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| 449 | |
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| 450 | // int ConnectionManager::getNumberOfClients() { |
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| 451 | // |
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| 452 | // return clientsShip.size(); |
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| 453 | // } |
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| 454 | |
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| 455 | /*void ConnectionManager::addClientsObjectID( int clientID, int objectID ) { |
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| 456 | COUT(4) << "ship of client: " << clientID << ": " << objectID << " mapped" << std::endl; |
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| 457 | clientsShip.insert( std::make_pair( clientID, objectID ) ); |
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| 458 | } |
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| 459 | |
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| 460 | int ConnectionManager::getClientsShipID( int clientID ) { |
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| 461 | return clientsShip[clientID]; |
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| 462 | } |
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| 463 | |
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| 464 | int ConnectionManager::getObjectsClientID( int objectID ) { |
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| 465 | std::map<int, int>::iterator iter; |
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| 466 | for( iter = clientsShip.begin(); iter != clientsShip.end(); iter++ ) { |
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| 467 | if( iter->second == objectID ) return iter->first; |
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| 468 | } |
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| 469 | return -99; |
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| 470 | } |
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| 471 | |
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| 472 | void ConnectionManager::deleteClientIDReg( int clientID ) { |
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| 473 | clientsShip.erase( clientID ); |
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| 474 | } |
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| 475 | |
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| 476 | void ConnectionManager::deleteObjectIDReg( int objectID ) { |
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| 477 | std::map<int, int>::iterator iter = clientsShip.begin(); |
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| 478 | for( iter = clientsShip.begin(); iter != clientsShip.end(); iter++ ) { |
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| 479 | if( iter->second == objectID ) break; |
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| 480 | } |
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| 481 | clientsShip.erase( iter->first ); |
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| 482 | }*/ |
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| 483 | } |
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