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source: code/branches/ggz2/src/libraries/network/packet/ClassID.cc @ 8061

Last change on this file since 8061 was 5738, checked in by landauf, 15 years ago

merged libraries2 back to trunk

  • Property svn:eol-style set to native
File size: 4.6 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, (C) 2008
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29#include "ClassID.h"
30
31#include <cassert>
32#include <cstdlib>
33#include <cstring>
34#include <map>
35#include <queue>
36#include <string>
37
38#include "core/CoreIncludes.h"
39
40namespace orxonox {
41namespace packet {
42
43
44#define PACKET_FLAGS_CLASSID  PacketFlag::Reliable
45#define _PACKETID             0
46
47
48ClassID::ClassID( ) : Packet(){
49  Identifier *id;
50  std::string classname;
51  unsigned int nrOfClasses=0; 
52  unsigned int packetSize=2*sizeof(uint32_t); //space for the packetID and for the nrofclasses
53  uint32_t network_id;
54  flags_ = flags_ | PACKET_FLAGS_CLASSID;
55  std::queue<std::pair<uint32_t, std::string> > tempQueue;
56 
57  //calculate total needed size (for all strings and integers)
58  std::map<std::string, Identifier*>::const_iterator it = Factory::getFactoryMapBegin();
59  for(;it != Factory::getFactoryMapEnd();++it){
60    id = (*it).second;
61    if(id == NULL)
62      continue;
63    classname = id->getName();
64    network_id = id->getNetworkID();
65    if(network_id==0)
66      COUT(3) << "we got a null class id: " << id->getName() << std::endl;
67    // now push the network id and the classname to the stack
68    tempQueue.push( std::pair<unsigned int, std::string>(network_id, classname) );
69    ++nrOfClasses;
70    packetSize += (classname.size()+1)+sizeof(uint32_t)+sizeof(uint32_t);
71  }
72 
73  this->data_=new uint8_t[ packetSize ];
74  //set the appropriate packet id
75  assert(this->data_);
76  *(Type::Value *)(this->data_ + _PACKETID ) = Type::ClassID;
77 
78  uint8_t *temp=data_+sizeof(uint32_t);
79  // save the number of all classes
80  *(uint32_t*)temp = nrOfClasses;
81  temp += sizeof(uint32_t);
82 
83  // now save all classids and classnames
84  std::pair<uint32_t, std::string> tempPair;
85  while( !tempQueue.empty() ){
86    tempPair = tempQueue.front();
87    tempQueue.pop();
88    *(uint32_t*)temp = tempPair.first;
89    *(uint32_t*)(temp+sizeof(uint32_t)) = tempPair.second.size()+1;
90    memcpy(temp+2*sizeof(uint32_t), tempPair.second.c_str(), tempPair.second.size()+1);
91    temp+=2*sizeof(uint32_t)+tempPair.second.size()+1;
92  }
93 
94  COUT(5) << "classid packetSize is " << packetSize << endl;
95 
96}
97
98ClassID::ClassID( uint8_t* data, unsigned int clientID )
99  : Packet(data, clientID)
100{
101}
102
103ClassID::~ClassID()
104{
105}
106
107uint32_t ClassID::getSize() const{
108  uint8_t *temp = data_+sizeof(uint32_t); // packet identification
109  uint32_t totalsize = sizeof(uint32_t); // packet identification
110  uint32_t nrOfClasses = *(uint32_t*)temp;
111  temp += sizeof(uint32_t);
112  totalsize += sizeof(uint32_t); // storage size for nr of all classes
113 
114  for(unsigned int i=0; i<nrOfClasses; i++){
115    totalsize += 2*sizeof(uint32_t) + *(uint32_t*)(temp + sizeof(uint32_t));
116  }
117  return totalsize;
118}
119
120
121bool ClassID::process(){
122  int nrOfClasses;
123  uint8_t *temp = data_+sizeof(uint32_t); //skip the packetid
124  uint32_t networkID;
125  uint32_t stringsize;
126  unsigned char *classname;
127 
128 
129  //clean the map of network ids
130  Factory::cleanNetworkIDs();
131 
132  COUT(4) << "=== processing classids: " << endl;
133  std::pair<uint32_t, std::string> tempPair;
134  Identifier *id;
135  // read the total number of classes
136  nrOfClasses = *(uint32_t*)temp;
137  temp += sizeof(uint32_t);
138 
139  for( int i=0; i<nrOfClasses; i++){
140    networkID = *(uint32_t*)temp;
141    stringsize = *(uint32_t*)(temp+sizeof(uint32_t));
142    classname = temp+2*sizeof(uint32_t);
143    id=ClassByString( std::string((const char*)classname) );
144    COUT(3) << "processing classid: " << networkID << " name: " << classname << " id: " << id << std::endl;
145    if(id==NULL){
146      COUT(0) << "Recieved a bad classname" << endl;
147      abort();
148    }
149    id->setNetworkID( networkID );
150    temp += 2*sizeof(uint32_t) + stringsize;
151  }
152  delete this;
153  return true;
154}
155
156
157} //namespace packet
158}//namespace orxonox
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