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source: code/branches/network/src/network/packet/Packet.cc @ 1890

Last change on this file since 1890 was 1890, checked in by scheusso, 16 years ago

first efforts to make the network module 64bit compatible
gamestates are still missing

  • Property svn:eol-style set to native
File size: 4.5 KB
RevLine 
[1711]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, (C) 2008
24 *   Co-authors:
25 *      ...
26 *
27 */
[1701]28
[1711]29
[1760]30#include "Packet.h"
31
32#include <cassert>
[1701]33#include <enet/enet.h>
[1711]34#include <boost/bind.hpp>
[1701]35
36#include "network/ConnectionManager.h"
37#include "network/ClientInformation.h"
38
39#include "Acknowledgement.h"
40#include "Chat.h"
41#include "ClassID.h"
[1709]42#include "Gamestate.h"
[1711]43#include "Welcome.h"
[1775]44#include "DeleteObjects.h"
[1701]45#include "network/Host.h"
[1705]46#include "core/CoreIncludes.h"
[1701]47
48namespace network{
49
50namespace packet{
51 
[1711]52#define PACKET_FLAG_DEFAULT ENET_PACKET_FLAG_NO_ALLOCATE
[1701]53#define _PACKETID           0
54 
[1711]55std::map<ENetPacket *, Packet *> Packet::packetMap_;
[1701]56 
57Packet::Packet(){
[1711]58  flags_ = PACKET_FLAG_DEFAULT;
[1701]59  packetDirection_ = ENUM::Outgoing;
60  clientID_=0;
[1711]61  data_=0;
[1701]62  enetPacket_=0;
63}
64
[1712]65void blub(ENetPacket *packet){
[1713]66  COUT(4) << "blubb" << std::endl;
[1712]67}
68
[1890]69Packet::Packet(uint8_t *data, unsigned int clientID){
[1711]70  flags_ = PACKET_FLAG_DEFAULT;
[1713]71  packetDirection_ = ENUM::Incoming;
[1711]72  clientID_=clientID;
73  data_=data;
[1701]74  enetPacket_=0;
75}
76
77
[1711]78Packet::Packet(const Packet &p){
[1712]79  enetPacket_=p.enetPacket_;
[1711]80  flags_=p.flags_;
[1730]81  packetDirection_ = p.packetDirection_;
82  clientID_ = p.clientID_;
[1711]83  if(p.data_){
[1890]84    data_ = new uint8_t[p.getSize()];
[1711]85    memcpy(data_, p.data_, p.getSize());
86  }else
87    data_=0;
[1701]88}
89
[1711]90Packet::~Packet(){
[1751]91  if(enetPacket_){
92    assert(enetPacket_->freeCallback==0);
[1705]93    enet_packet_destroy(enetPacket_);
[1751]94  }
[1711]95  if(data_)
96    delete[] data_;
[1705]97}
[1701]98
99bool Packet::send(){
[1730]100  if(packetDirection_ != ENUM::Outgoing && packetDirection_ != ENUM::Bidirectional ){
[1712]101    assert(0);
[1701]102    return false;
[1730]103  }
[1701]104  if(!enetPacket_){
[1712]105    if(!data_){
106      assert(0);
[1701]107      return false;
[1712]108    }
[1711]109    enetPacket_ = enet_packet_create(getData(), getSize(), getFlags());
[1751]110    enetPacket_->freeCallback = &Packet::deletePacket;
111//     enetPacket_->freeCallback = &blub;
[1711]112    packetMap_[enetPacket_] = this;
[1701]113  }
[1751]114#ifndef NDEBUG
115  switch( *(ENUM::Type *)(data_ + _PACKETID) )
[1715]116  {
117    case ENUM::Acknowledgement:
118    case ENUM::Chat:
119    case ENUM::ClassID:
120    case ENUM::Gamestate:
121    case ENUM::Welcome:
[1751]122      break;
[1715]123    default:
[1751]124      assert(0); //there was some error, if this is the case
[1715]125      break;
[1751]126  }
127#endif
128  ENetPacket *temp = enetPacket_;
[1705]129  enetPacket_ = 0; // otherwise we have a double free because enet already handles the deallocation of the packet
[1751]130  network::Host::addPacket( temp, clientID_);
[1701]131  return true;
132}
133
[1711]134Packet *Packet::createPacket(ENetPacket *packet, ENetPeer *peer){
[1890]135  uint8_t *data = packet->data;
[1711]136  unsigned int clientID = ClientInformation::findClient(&peer->address)->getID();
137  Packet *p;
[1775]138  COUT(5) << "packet type: " << *(ENUM::Type *)&data[_PACKETID] << std::endl;
[1715]139  switch( *(ENUM::Type *)(data + _PACKETID) )
[1701]140  {
141    case ENUM::Acknowledgement:
[1775]142      COUT(4) << "ack" << std::endl;
[1711]143      p = new Acknowledgement( data, clientID );
[1701]144      break;
145    case ENUM::Chat:
[1775]146      COUT(4) << "chat" << std::endl;
[1711]147      p = new Chat( data, clientID );
[1701]148      break;
149    case ENUM::ClassID:
[1775]150      COUT(4) << "classid" << std::endl;
[1711]151      p = new ClassID( data, clientID );
[1701]152      break;
153    case ENUM::Gamestate:
[1775]154      COUT(4) << "gamestate" << std::endl;
[1701]155      // TODO: remove brackets
[1715]156      p = new Gamestate( data, clientID );
[1701]157      break;
[1711]158    case ENUM::Welcome:
[1775]159      COUT(4) << "welcome" << std::endl;
[1711]160      p = new Welcome( data, clientID );
[1715]161      break;
[1775]162    case ENUM::DeleteObjects:
163      COUT(4) << "deleteobjects" << std::endl;
164      p = new DeleteObjects( data, clientID );
165      break;
[1701]166    default:
[1710]167      assert(0); //TODO: repair this
168      break;
[1701]169  }
[1711]170  return p;
[1701]171}
172
[1711]173void Packet::deletePacket(ENetPacket *packet){
174  assert(packetMap_[packet]);
[1751]175  assert(packetMap_[packet]->enetPacket_==0);
[1711]176  delete packetMap_[packet];
177}
178
[1701]179} // namespace packet
180
181} // namespace network
182
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