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source: code/trunk/src/libraries/network/ClientConnection.cc @ 5857

Last change on this file since 5857 was 5781, checked in by rgrieder, 15 years ago

Reverted trunk again. We might want to find a way to delete these revisions again (x3n's changes are still available as diff in the commit mails).

  • Property svn:eol-style set to native
File size: 4.2 KB
Line 
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:
23 *      Oliver Scheuss
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "ClientConnection.h"
30
31#include <cassert>
32#define WIN32_LEAN_AND_MEAN
33#include <enet/enet.h>
34#include "util/Debug.h"
35
36namespace orxonox
37{
38  const unsigned int NETWORK_CLIENT_WAIT_TIME = 1;
39  const unsigned int NETWORK_CLIENT_CONNECTION_TIMEOUT = 3000; //millisecs
40  const unsigned int NETWORK_CLIENT_MAX_CONNECTIONS = 5;
41  const unsigned int NETWORK_CLIENT_CHANNELS = 2;
42
43
44  ClientConnection::ClientConnection():
45    established_(false),
46    server_(NULL)
47  {
48    this->serverAddress_ = new ENetAddress();
49    //set standard address and port
50    enet_address_set_host(this->serverAddress_, "127.0.0.1");
51    serverAddress_->port = NETWORK_PORT;
52  }
53
54  ClientConnection::~ClientConnection(){
55    if(this->established_)
56      closeConnection();
57    delete this->serverAddress_; // surely was created
58  }
59
60  void ClientConnection::setServerAddress( const std::string& serverAddress ) {
61    enet_address_set_host (this->serverAddress_, serverAddress.c_str());
62  }
63
64  void ClientConnection::setPort( unsigned int port ) {
65    this->serverAddress_->port = port;
66  }
67
68  bool ClientConnection::establishConnection()
69  {
70    ENetEvent event;
71   
72    this->host_ = enet_host_create(NULL, NETWORK_CLIENT_MAX_CONNECTIONS, 0, 0);
73    if ( this->host_ == NULL )
74    {
75      COUT(2) << "ClientConnection: host_ == NULL" << std::endl;
76      // error handling
77      return false;
78    }
79    this->server_ = enet_host_connect(this->host_, serverAddress_, NETWORK_CLIENT_CHANNELS);
80    if ( this->server_==NULL )
81    {
82      COUT(2) << "ClientConnection: server == NULL" << std::endl;
83      // error handling
84      return false;
85    }
86    // handshake
87    for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++ )
88    {
89      if( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME)>=0 && event.type == ENET_EVENT_TYPE_CONNECT )
90      {
91        this->established_=true;
92        return true;
93      }
94    }
95    COUT(1) << "Could not connect to server" << endl;
96    return false;
97  }
98
99  bool ClientConnection::closeConnection() {
100    ENetEvent event;
101   
102    if ( !this->established_ )
103      return true;
104    this->established_ = false;
105    enet_peer_disconnect(this->server_, 0);
106    for( unsigned int i=0; i<NETWORK_CLIENT_CONNECTION_TIMEOUT/NETWORK_CLIENT_WAIT_TIME; i++)
107    {
108      if ( enet_host_service(this->host_, &event, NETWORK_CLIENT_WAIT_TIME) >= 0 )
109      {
110        switch (event.type)
111        {
112          case ENET_EVENT_TYPE_NONE:
113          case ENET_EVENT_TYPE_CONNECT:
114            break;
115          case ENET_EVENT_TYPE_RECEIVE:
116            enet_packet_destroy(event.packet);
117            break;
118          case ENET_EVENT_TYPE_DISCONNECT:
119            COUT(4) << "received disconnect confirmation from server" << endl;
120            return true;
121        }
122      }
123    }
124    enet_peer_reset( this->server_ );
125    return false;
126  }
127
128
129  bool ClientConnection::addPacket(ENetPacket *packet) {
130    assert( this->server_ );
131    assert( packet );
132    return Connection::addPacket( packet, this->server_ );
133  }
134
135  void ClientConnection::addClient(ENetEvent* event)
136  {
137    assert(0);
138  }
139  void ClientConnection::disconnectPeer(ENetEvent* event)
140  {
141    this->established_=false;
142    COUT(1) << "Received disconnect Packet from Server!" << endl;
143        // server closed the connection
144  }
145
146}
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