/* * ORXONOX - the hottest 3D action shooter ever to exist * > www.orxonox.net < * * * License notice: * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Author: * Oliver Scheuss * Co-authors: * ... * */ #include "ClientConnection.h" #include #define WIN32_LEAN_AND_MEAN #include #include "util/Output.h" namespace orxonox { const unsigned int NETWORK_CLIENT_WAIT_TIME = 1; const unsigned int NETWORK_CLIENT_CONNECTION_TIMEOUT = 3000; //millisecs const unsigned int NETWORK_CLIENT_MAX_CONNECTIONS = 1; ClientConnection::ClientConnection(): Connection(NETWORK_PEER_ID_SERVER), established_(false), server_(nullptr) { this->serverAddress_ = new ENetAddress(); //set standard address and port enet_address_set_host(this->serverAddress_, "127.0.0.1"); // TODO: check for IPv6 and connect to ::1 instead serverAddress_->port = NETWORK_PORT; } ClientConnection::~ClientConnection(){ if(this->established_) closeConnection(); delete this->serverAddress_; // surely was created } void ClientConnection::setServerAddress( const std::string& serverAddress ) { if (enet_address_set_host (this->serverAddress_, serverAddress.c_str()) < 0) orxout(internal_error, context::network) << "Could not resolve \"" << serverAddress << "\"." << endl; } void ClientConnection::setPort( unsigned int port ) { this->serverAddress_->port = port; } bool ClientConnection::establishConnection() { ENetEvent event; // create host this->host_ = enet_host_create(nullptr, NETWORK_CLIENT_MAX_CONNECTIONS, NETWORK_CHANNEL_COUNT, 0, 0); if ( this->host_ == nullptr ) { orxout(internal_error, context::network) << "ClientConnection: host_ == nullptr" << endl; // error handling return false; } // enable compression this->enableCompression(); assert( this->host_->socket4 != ENET_SOCKET_NULL || this->host_->socket6 != ENET_SOCKET_NULL ); if (this->host_->socket4 == ENET_SOCKET_NULL) orxout(internal_warning, context::network) << "IPv4 Socket failed." << endl; else if (this->host_->socket6 == ENET_SOCKET_NULL) orxout(internal_warning, context::network) << "IPv6 Socket failed." << endl; else orxout(internal_info, context::network) << "Using IPv4 and IPv6 Sockets." << endl; this->server_ = enet_host_connect(this->host_, serverAddress_, NETWORK_CHANNEL_COUNT, 0); if ( this->server_==nullptr ) { orxout(internal_error, context::network) << "ClientConnection: server_ == nullptr" << endl; // error handling return false; } // handshake for( unsigned int i=0; ihost_, &event, NETWORK_CLIENT_WAIT_TIME)>=0 && event.type == ENET_EVENT_TYPE_CONNECT ) { // manually add server to list of peers Connection::preprocessConnectEvent(event); // start communication thread this->established_=true; Connection::startCommunicationThread(); return true; } } orxout(user_error, context::network) << "Could not connect to server" << endl; return false; } bool ClientConnection::closeConnection() { ENetEvent event; if ( !this->established_ ) return true; this->established_ = false; // stop communication thread and disconnect server Connection::stopCommunicationThread(); enet_peer_disconnect(this->server_, 0); for( unsigned int i=0; ihost_, &event, NETWORK_CLIENT_WAIT_TIME) >= 0 ) { switch (event.type) { case ENET_EVENT_TYPE_NONE: case ENET_EVENT_TYPE_CONNECT: break; case ENET_EVENT_TYPE_RECEIVE: enet_packet_destroy(event.packet); break; case ENET_EVENT_TYPE_DISCONNECT: orxout(verbose, context::network) << "received disconnect confirmation from server" << endl; this->connectionClosed(); return true; } } } enet_peer_reset( this->server_ ); this->connectionClosed(); return false; } void ClientConnection::addPacket(ENetPacket *packet, uint8_t channelID) { assert( this->server_ ); assert( packet ); // HACK: actually there should be a way to do this using addPacket and the correct peerID return Connection::broadcastPacket(packet, channelID); } void ClientConnection::addPeer(uint32_t peerID) { assert(0); } void ClientConnection::removePeer(uint32_t peerID) { this->established_=false; orxout(internal_error, context::network) << "Received disconnect Packet from Server!" << endl; // server closed the connection this->stopCommunicationThread(); this->connectionClosed(); } uint32_t ClientConnection::getRTT() { if (server_) return server_->roundTripTime; else return 0; } }