[1502] | 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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[3084] | 23 | * Oliver Scheuss |
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[1502] | 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 "ClientConnection.h" |
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| 30 | |
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[3214] | 31 | #include <cassert> |
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[5749] | 32 | #define WIN32_LEAN_AND_MEAN |
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[2773] | 33 | #include <enet/enet.h> |
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[1747] | 34 | #include "util/Debug.h" |
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[1502] | 35 | |
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[2171] | 36 | namespace orxonox |
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[1502] | 37 | { |
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[3214] | 38 | const unsigned int NETWORK_CLIENT_WAIT_TIME = 1; |
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| 39 | const unsigned int NETWORK_CLIENT_CONNECTION_TIMEOUT = 3000; //millisecs |
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[5965] | 40 | const unsigned int NETWORK_CLIENT_MAX_CONNECTIONS = 1; |
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| 41 | const unsigned int NETWORK_CLIENT_CHANNELS = 1; |
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[1502] | 42 | |
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| 43 | |
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[3214] | 44 | ClientConnection::ClientConnection(): |
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| 45 | established_(false), |
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| 46 | server_(NULL) |
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| 47 | { |
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| 48 | this->serverAddress_ = new ENetAddress(); |
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| 49 | //set standard address and port |
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[7402] | 50 | enet_address_set_host(this->serverAddress_, "127.0.0.1"); // TODO: check for IPv6 and connect to ::1 instead |
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[3214] | 51 | serverAddress_->port = NETWORK_PORT; |
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[1502] | 52 | } |
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| 53 | |
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[1907] | 54 | ClientConnection::~ClientConnection(){ |
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[3214] | 55 | if(this->established_) |
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[1907] | 56 | closeConnection(); |
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[3214] | 57 | delete this->serverAddress_; // surely was created |
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[1502] | 58 | } |
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| 59 | |
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[3214] | 60 | void ClientConnection::setServerAddress( const std::string& serverAddress ) { |
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[7402] | 61 | if (enet_address_set_host (this->serverAddress_, serverAddress.c_str()) < 0) |
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| 62 | COUT(1) << "Error: Could not resolve \"" << serverAddress << "\"." << std::endl; |
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[1502] | 63 | } |
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| 64 | |
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[3214] | 65 | void ClientConnection::setPort( unsigned int port ) { |
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| 66 | this->serverAddress_->port = port; |
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[1502] | 67 | } |
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| 68 | |
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[3214] | 69 | bool ClientConnection::establishConnection() |
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| 70 | { |
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| 71 | ENetEvent event; |
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[6417] | 72 | |
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[7294] | 73 | this->host_ = enet_host_create(NULL, NETWORK_CLIENT_MAX_CONNECTIONS, 0, 0, 0); |
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[3214] | 74 | if ( this->host_ == NULL ) |
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| 75 | { |
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[7402] | 76 | COUT(1) << "ClientConnection: host_ == NULL" << std::endl; |
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[3214] | 77 | // error handling |
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[1502] | 78 | return false; |
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[3214] | 79 | } |
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[7402] | 80 | assert( this->host_->socket4 != ENET_SOCKET_NULL || this->host_->socket6 != ENET_SOCKET_NULL ); |
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| 81 | if (this->host_->socket4 == ENET_SOCKET_NULL) |
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| 82 | COUT(2) << "Warning: IPv4 Socket failed." << std::endl; |
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| 83 | else if (this->host_->socket6 == ENET_SOCKET_NULL) |
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| 84 | COUT(2) << "Warning: IPv6 Socket failed." << std::endl; |
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| 85 | else |
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| 86 | COUT(3) << "Info: Using IPv4 and IPv6 Sockets." << std::endl; |
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| 87 | |
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[7294] | 88 | this->server_ = enet_host_connect(this->host_, serverAddress_, NETWORK_CLIENT_CHANNELS, 0); |
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[3214] | 89 | if ( this->server_==NULL ) |
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| 90 | { |
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[7402] | 91 | COUT(1) << "ClientConnection: server_ == NULL" << std::endl; |
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[3214] | 92 | // error handling |
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[1502] | 93 | return false; |
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| 94 | } |
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[3214] | 95 | // handshake |
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| 96 | for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++ ) |
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[1502] | 97 | { |
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[3214] | 98 | if( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME)>=0 && event.type == ENET_EVENT_TYPE_CONNECT ) |
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[1502] | 99 | { |
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[3214] | 100 | this->established_=true; |
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| 101 | return true; |
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[1502] | 102 | } |
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| 103 | } |
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[3214] | 104 | COUT(1) << "Could not connect to server" << endl; |
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| 105 | return false; |
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[1502] | 106 | } |
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| 107 | |
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[3214] | 108 | bool ClientConnection::closeConnection() { |
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[1502] | 109 | ENetEvent event; |
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[6417] | 110 | |
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[3214] | 111 | if ( !this->established_ ) |
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[3084] | 112 | return true; |
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[3214] | 113 | this->established_ = false; |
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| 114 | enet_peer_disconnect(this->server_, 0); |
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| 115 | for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++) |
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| 116 | { |
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| 117 | if ( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME) >= 0 ) |
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[1502] | 118 | { |
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[3214] | 119 | switch (event.type) |
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| 120 | { |
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| 121 | case ENET_EVENT_TYPE_NONE: |
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| 122 | case ENET_EVENT_TYPE_CONNECT: |
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| 123 | break; |
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| 124 | case ENET_EVENT_TYPE_RECEIVE: |
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| 125 | enet_packet_destroy(event.packet); |
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| 126 | break; |
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| 127 | case ENET_EVENT_TYPE_DISCONNECT: |
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| 128 | COUT(4) << "received disconnect confirmation from server" << endl; |
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[5929] | 129 | this->connectionClosed(); |
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[3214] | 130 | return true; |
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| 131 | } |
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[1502] | 132 | } |
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| 133 | } |
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[3214] | 134 | enet_peer_reset( this->server_ ); |
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[5929] | 135 | this->connectionClosed(); |
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[1502] | 136 | return false; |
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| 137 | } |
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| 138 | |
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[3214] | 139 | |
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| 140 | bool ClientConnection::addPacket(ENetPacket *packet) { |
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| 141 | assert( this->server_ ); |
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| 142 | assert( packet ); |
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| 143 | return Connection::addPacket( packet, this->server_ ); |
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[1502] | 144 | } |
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| 145 | |
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[5929] | 146 | void ClientConnection::addPeer(ENetEvent* event) |
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[3214] | 147 | { |
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| 148 | assert(0); |
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[1502] | 149 | } |
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[5929] | 150 | void ClientConnection::removePeer(ENetEvent* event) |
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[3214] | 151 | { |
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| 152 | this->established_=false; |
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| 153 | COUT(1) << "Received disconnect Packet from Server!" << endl; |
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| 154 | // server closed the connection |
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[5929] | 155 | this->connectionClosed(); |
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[3214] | 156 | } |
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[6417] | 157 | |
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[5961] | 158 | uint32_t ClientConnection::getRTT() |
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[6417] | 159 | { |
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[7284] | 160 | if (server_) |
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| 161 | return server_->roundTripTime; |
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| 162 | else |
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| 163 | return 0; |
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[5961] | 164 | } |
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[1502] | 165 | |
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| 166 | } |
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