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source: code/archive/tutorial4/src/libraries/network/packet/ClassID.cc @ 11486

Last change on this file since 11486 was 9667, checked in by landauf, 11 years ago

merged core6 back to trunk

  • Property svn:eol-style set to native
File size: 4.9 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  unsigned int nrOfClasses=0;
51  unsigned int packetSize=2*sizeof(uint32_t); //space for the packetID and for the nrofclasses
52  uint32_t network_id;
53  flags_ = flags_ | PACKET_FLAGS_CLASSID;
54  std::queue<std::pair<uint32_t, std::string> > tempQueue;
55
56  //calculate total needed size (for all strings and integers)
57  std::map<std::string, Identifier*>::const_iterator it = IdentifierManager::getInstance().getIdentifierByStringMap().begin();
58  for(;it != IdentifierManager::getInstance().getIdentifierByStringMap().end();++it){
59    id = it->second;
60    if(id == NULL || !id->hasFactory())
61      continue;
62    const std::string& classname = id->getName();
63    network_id = id->getNetworkID();
64    // now push the network id and the classname to the stack
65    tempQueue.push( std::pair<unsigned int, std::string>(network_id, classname) );
66    ++nrOfClasses;
67    packetSize += (classname.size()+1)+sizeof(network_id)+sizeof(uint32_t);
68  }
69
70  this->data_=new uint8_t[ packetSize ];
71  //set the appropriate packet id
72  assert(this->data_);
73  *(Type::Value *)(this->data_ + _PACKETID ) = Type::ClassID;
74
75  uint8_t *temp=data_+sizeof(uint32_t);
76  // save the number of all classes
77  *(uint32_t*)temp = nrOfClasses;
78  temp += sizeof(uint32_t);
79
80  // now save all classids and classnames
81  std::pair<uint32_t, std::string> tempPair;
82  uint32_t tempsize = 2*sizeof(uint32_t); // packetid and nrOfClasses
83  while( !tempQueue.empty() ){
84    tempPair = tempQueue.front();
85    tempQueue.pop();
86    *(uint32_t*)temp = tempPair.first;
87    *(uint32_t*)(temp+sizeof(uint32_t)) = tempPair.second.size()+1;
88    memcpy(temp+2*sizeof(uint32_t), tempPair.second.c_str(), tempPair.second.size()+1);
89    temp+=2*sizeof(uint32_t)+tempPair.second.size()+1;
90    tempsize+=2*sizeof(uint32_t)+tempPair.second.size()+1;
91  }
92  assert(tempsize==packetSize);
93
94  orxout(verbose_more, context::packets) << "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    temp += 2*sizeof(uint32_t) + *(uint32_t*)(temp + sizeof(uint32_t));
117  }
118  return totalsize;
119}
120
121
122bool ClassID::process(orxonox::Host* host){
123  int nrOfClasses;
124  uint8_t *temp = data_+sizeof(uint32_t); //skip the packetid
125  uint32_t networkID;
126  uint32_t stringsize;
127  unsigned char *classname;
128
129
130  //clear the map of network ids
131  IdentifierManager::getInstance().clearNetworkIDs();
132
133  orxout(verbose, context::packets) << "=== processing classids: " << endl;
134  std::pair<uint32_t, std::string> tempPair;
135  Identifier *id;
136  // read the total number of classes
137  nrOfClasses = *(uint32_t*)temp;
138  temp += sizeof(uint32_t);
139
140  for( int i=0; i<nrOfClasses; i++){
141    networkID = *(uint32_t*)temp;
142    stringsize = *(uint32_t*)(temp+sizeof(uint32_t));
143    classname = temp+2*sizeof(uint32_t);
144    id=ClassByString( std::string((const char*)classname) );
145    orxout(internal_info, context::packets) << "processing classid: " << networkID << " name: " << classname << " id: " << id << endl;
146    if(id==NULL){
147      orxout(user_error, context::packets) << "Received a bad classname" << endl;
148      abort();
149    }
150    id->setNetworkID( networkID );
151    temp += 2*sizeof(uint32_t) + stringsize;
152  }
153  delete this;
154  return true;
155}
156
157
158} //namespace packet
159}//namespace orxonox
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