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source: code/branches/ipv6/src/libraries/network/ClientConnection.cc @ 7414

Last change on this file since 7414 was 7402, checked in by adrfried, 14 years ago

add some error messages in orxonox network code

  • Property svn:eol-style set to native
File size: 4.9 KB
RevLine 
[1502]1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
[3084]23 *      Oliver Scheuss
[1502]24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "ClientConnection.h"
30
[3214]31#include <cassert>
[5749]32#define WIN32_LEAN_AND_MEAN
[2773]33#include <enet/enet.h>
[1747]34#include "util/Debug.h"
[1502]35
[2171]36namespace orxonox
[1502]37{
[3214]38  const unsigned int NETWORK_CLIENT_WAIT_TIME = 1;
39  const unsigned int NETWORK_CLIENT_CONNECTION_TIMEOUT = 3000; //millisecs
[5965]40  const unsigned int NETWORK_CLIENT_MAX_CONNECTIONS = 1;
41  const unsigned int NETWORK_CLIENT_CHANNELS = 1;
[1502]42
43
[3214]44  ClientConnection::ClientConnection():
45    established_(false),
46    server_(NULL)
47  {
48    this->serverAddress_ = new ENetAddress();
49    //set standard address and port
[7402]50    enet_address_set_host(this->serverAddress_, "127.0.0.1"); // TODO: check for IPv6 and connect to ::1 instead
[3214]51    serverAddress_->port = NETWORK_PORT;
[1502]52  }
53
[1907]54  ClientConnection::~ClientConnection(){
[3214]55    if(this->established_)
[1907]56      closeConnection();
[3214]57    delete this->serverAddress_; // surely was created
[1502]58  }
59
[3214]60  void ClientConnection::setServerAddress( const std::string& serverAddress ) {
[7402]61    if (enet_address_set_host (this->serverAddress_, serverAddress.c_str()) < 0)
62        COUT(1) << "Error: Could not resolve \"" << serverAddress << "\"." << std::endl;
[1502]63  }
64
[3214]65  void ClientConnection::setPort( unsigned int port ) {
66    this->serverAddress_->port = port;
[1502]67  }
68
[3214]69  bool ClientConnection::establishConnection()
70  {
71    ENetEvent event;
[6417]72
[7294]73    this->host_ = enet_host_create(NULL, NETWORK_CLIENT_MAX_CONNECTIONS, 0, 0, 0);
[3214]74    if ( this->host_ == NULL )
75    {
[7402]76      COUT(1) << "ClientConnection: host_ == NULL" << std::endl;
[3214]77      // error handling
[1502]78      return false;
[3214]79    }
[7402]80    assert( this->host_->socket4 != ENET_SOCKET_NULL || this->host_->socket6 != ENET_SOCKET_NULL );
81    if (this->host_->socket4 == ENET_SOCKET_NULL)
82        COUT(2) << "Warning: IPv4 Socket failed." << std::endl;
83    else if (this->host_->socket6 == ENET_SOCKET_NULL)
84        COUT(2) << "Warning: IPv6 Socket failed." << std::endl;
85    else
86        COUT(3) << "Info: Using IPv4 and IPv6 Sockets." << std::endl;
87
[7294]88    this->server_ = enet_host_connect(this->host_, serverAddress_, NETWORK_CLIENT_CHANNELS, 0);
[3214]89    if ( this->server_==NULL )
90    {
[7402]91      COUT(1) << "ClientConnection: server_ == NULL" << std::endl;
[3214]92      // error handling
[1502]93      return false;
94    }
[3214]95    // handshake
96    for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++ )
[1502]97    {
[3214]98      if( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME)>=0 && event.type == ENET_EVENT_TYPE_CONNECT )
[1502]99      {
[3214]100        this->established_=true;
101        return true;
[1502]102      }
103    }
[3214]104    COUT(1) << "Could not connect to server" << endl;
105    return false;
[1502]106  }
107
[3214]108  bool ClientConnection::closeConnection() {
[1502]109    ENetEvent event;
[6417]110
[3214]111    if ( !this->established_ )
[3084]112      return true;
[3214]113    this->established_ = false;
114    enet_peer_disconnect(this->server_, 0);
115    for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++)
116    {
117      if ( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME) >= 0 )
[1502]118      {
[3214]119        switch (event.type)
120        {
121          case ENET_EVENT_TYPE_NONE:
122          case ENET_EVENT_TYPE_CONNECT:
123            break;
124          case ENET_EVENT_TYPE_RECEIVE:
125            enet_packet_destroy(event.packet);
126            break;
127          case ENET_EVENT_TYPE_DISCONNECT:
128            COUT(4) << "received disconnect confirmation from server" << endl;
[5929]129            this->connectionClosed();
[3214]130            return true;
131        }
[1502]132      }
133    }
[3214]134    enet_peer_reset( this->server_ );
[5929]135    this->connectionClosed();
[1502]136    return false;
137  }
138
[3214]139
140  bool ClientConnection::addPacket(ENetPacket *packet) {
141    assert( this->server_ );
142    assert( packet );
143    return Connection::addPacket( packet, this->server_ );
[1502]144  }
145
[5929]146  void ClientConnection::addPeer(ENetEvent* event)
[3214]147  {
148    assert(0);
[1502]149  }
[5929]150  void ClientConnection::removePeer(ENetEvent* event)
[3214]151  {
152    this->established_=false;
153    COUT(1) << "Received disconnect Packet from Server!" << endl;
154        // server closed the connection
[5929]155    this->connectionClosed();
[3214]156  }
[6417]157
[5961]158  uint32_t ClientConnection::getRTT()
[6417]159  {
[7284]160    if (server_)
161        return server_->roundTripTime;
162    else
163        return 0;
[5961]164  }
[1502]165
166}
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