/[PAMELA software]/yoda/techmodel/EventReader.cpp
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revision 2.7 by kusanagi, Wed Dec 22 11:38:35 2004 UTC revision 6.7 by kusanagi, Wed Aug 16 13:15:23 2006 UTC
# Line 1  Line 1 
1  /** @file  /** @file
2   * $Author: kusanagi $   * $Author: kusanagi $
3   * $Date: 2004/12/16 17:32:57 $   * $Date: 2006/05/30 19:58:25 $
4   * $Revision: 2.6 $   * $Revision: 6.6 $
5   *   *
6   * Implementation of the functions of a sample Algorithm class.   * Implementation of the functions of a sample Algorithm class.
7   * This file can be used as a templace to develop your own algorithm.   * This file can be used as a templace to develop your own algorithm.
8   */   */
9    
10  #include <log4cxx/logger.h>  #include <log4cxx/logger.h>
 #include <fstream>  
11  #include "EventReader.h"  #include "EventReader.h"
12  #include "ReaderAlgorithms.h"  #include "ReaderAlgorithms.h"
13    
   
14  extern "C" {  extern "C" {
15      #include "CRC.h"      #include "CRC.h"
16  }  }
# Line 43  EventReader::EventReader(int packetsLimi Line 41  EventReader::EventReader(int packetsLimi
41    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth,    new CalibTrkBothReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth,    new CalibTrkBothReader));
42    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1,       new CalibTrk1Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1,       new CalibTrk1Reader));
43    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2,       new CalibTrk2Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2,       new CalibTrk2Reader));
   TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrd,        new CalibTrdReader));  
44    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof,        new CalibTofReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof,        new CalibTofReader));
45    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4,         new CalibS4Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4,         new CalibS4Reader));
46    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed,     new CalibCalPedReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed,     new CalibCalPedReader));
# Line 51  EventReader::EventReader(int packetsLimi Line 48  EventReader::EventReader(int packetsLimi
48    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac1,      new Calib2_Ac1Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac1,      new Calib2_Ac1Reader));
49    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac2,      new Calib1_Ac2Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac2,      new Calib1_Ac2Reader));
50    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2,      new Calib2_Ac2Reader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2,      new Calib2_Ac2Reader));
51      TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCal,        new CalibCalReader));
52    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader,       new RunHeaderReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader,       new RunHeaderReader));
53    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer,      new RunTrailerReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer,      new RunTrailerReader));
54    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader,     new CalibHeaderReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader,     new CalibHeaderReader));
# Line 58  EventReader::EventReader(int packetsLimi Line 56  EventReader::EventReader(int packetsLimi
56    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader,      new InitHeaderReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader,      new InitHeaderReader));
57    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer,     new InitTrailerReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer,     new InitTrailerReader));
58    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk,        new EventTrkReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk,        new EventTrkReader));
   TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTrk,         new TestTrkReader));  
   TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTof,         new TestTofReader));  
59    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log,             new LogReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log,             new LogReader));
60    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump,         new VarDumpReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump,         new VarDumpReader));
61    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump,         new ArrDumpReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump,         new ArrDumpReader));
# Line 76  EventReader::EventReader(int packetsLimi Line 72  EventReader::EventReader(int packetsLimi
72    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Init,          new S4InitReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Init,          new S4InitReader));
73    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Init,         new Ac2InitReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Init,         new Ac2InitReader));
74    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm,        new CalAlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm,        new CalAlarmReader));
75    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcAlarm,         new AcAlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac1Alarm,        new Ac1AlarmReader));
76    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm,        new TrkAlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm,        new TrkAlarmReader));
77    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm,        new TrgAlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm,        new TrgAlarmReader));
78    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm,        new TofAlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm,        new TofAlarmReader));
79    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Alarm,         new S4AlarmReader));    TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Alarm,         new S4AlarmReader));
80      TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Alarm,        new Ac2AlarmReader));  
81      TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbT,            new TsbTReader));
82      TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbB,            new TsbBReader));
83  }  }
84    
85  /**  /**
# Line 88  EventReader::EventReader(int packetsLimi Line 87  EventReader::EventReader(int packetsLimi
87   */   */
88  std::string EventReader::GetVersionInfo(void) const {  std::string EventReader::GetVersionInfo(void) const {
89    return    return
90      "$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 2.6 2004/12/16 17:32:57 kusanagi Exp $\n";      "$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 6.6 2006/05/30 19:58:25 kusanagi Exp $\n";
91  }  }
92    
93  /**  /**
# Line 97  std::string EventReader::GetVersionInfo( Line 96  std::string EventReader::GetVersionInfo(
96   */   */
97  void EventReader::Init(PamelaRun *run) {  void EventReader::Init(PamelaRun *run) {
98      SetInputStream(run);      SetInputStream(run);
       
99      //Create the structure of directories and create xxx.Header.root files      //Create the structure of directories and create xxx.Header.root files
100      run->WriteHeaders(this, &Header);      run->WriteHeaders(this, &Header);
101    
# Line 118  static void SkipToNextHeader(ifstream *) Line 116  static void SkipToNextHeader(ifstream *)
116   * Read the next event header, call the reader algorithms that   * Read the next event header, call the reader algorithms that
117   * correspond to its packet type, and read the event trailer.   * correspond to its packet type, and read the event trailer.
118   */   */
   
 // 15 June 2004 ---note------------------  
 // A nice refacoring would require to not read again the packet data (which is  
 // read in the UnpackPscuHeader() and put directly in  the  
 // EventAlgorithm->RunEvent(....) directly the data inside the packet.... will see later....  
 // 15 June 2004 ---note------------------  
119  void EventReader::RunEvent(int EventNumber) {  void EventReader::RunEvent(int EventNumber) {
   //for now i'll suppose that the raw file starts immediately with the right bytes  
   //to insert a GetPacketStart()  
120    stringstream oss;    stringstream oss;
121    int step = 0;    int step = 0;
122    const PacketType* type;    const PacketType* type;
123      unsigned char *header;
124    while (!InputFile->eof() && ((step++ < maxPackets) || (maxPackets == 0))){    while (!InputFile->eof() && ((step++ < maxPackets) || (maxPackets == 0))){
125      try {      try {
126        if (FindStart()) {        if (FindStart(*&header, 16)) {
127              UnpackPscuHeader();              UnpackPscuHeader(*&header);
128              type = Header->GetPscuHeader()->GetPacketType();              type = Header->GetPscuHeader()->GetPacketType();
129              AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);              AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);
130              if (i != TechmodelAlgorithmMap.end()) {              if (i != TechmodelAlgorithmMap.end()) {
# Line 143  void EventReader::RunEvent(int EventNumb Line 134  void EventReader::RunEvent(int EventNumb
134                  Header->GetCounter()->Increment(type);                  Header->GetCounter()->Increment(type);
135                  logger->info(Header->GetPscuHeader()->Print());                  logger->info(Header->GetPscuHeader()->Print());
136              } else {              } else {
137                  throw NotExistingAlgorithmException(type->GetName().c_str()); //to exctract to an higher level and delete the logger!                  oss.str("");
138                    oss << "\n No way to read events of type  " << type->GetName().c_str() << Header->GetPscuHeader()->Print();
139                    throw NotExistingAlgorithmException(oss.str().c_str()); //to exctract to an higher level and delete the logger!
140              }              }
141        }        }
142      // In case of exception have to save the packet in a specific root file??      // In case of exception have to save the packet in a specific root file??
# Line 153  void EventReader::RunEvent(int EventNumb Line 146  void EventReader::RunEvent(int EventNumb
146        logger->error(oss.str().c_str());        logger->error(oss.str().c_str());
147      } catch (WrongCRCHeaderException exc) {      } catch (WrongCRCHeaderException exc) {
148        oss.str("");        oss.str("");
149        oss << exc.print() << " " << Header->GetPscuHeader()->Print();        oss << exc.print();
150        logger->error(oss.str().c_str());        logger->error(oss.str().c_str());
151      } catch (WrongCRCException exc) {      } catch (WrongCRCException exc) {
152        oss.str("");        oss.str("");
153        oss << exc.print() << " " << Header->GetPscuHeader()->Print();        oss << exc.print() << " " << Header->GetPscuHeader()->Print();
154        logger->error(oss.str().c_str());        logger->error(oss.str().c_str());
155          archiveCorruptedPacket(Header->GetPscuHeader()->FileOffset, Header->GetPscuHeader()->PacketLenght);
156      } catch (UnidentifiedPacketException exc) {      } catch (UnidentifiedPacketException exc) {
157        oss.str("");        oss.str("");
158        oss << exc.print() << " " << Header->GetPscuHeader()->Print();        oss << exc.print() << " " << Header->GetPscuHeader()->Print();
# Line 171  void EventReader::RunEvent(int EventNumb Line 165  void EventReader::RunEvent(int EventNumb
165        oss.str("");        oss.str("");
166        oss << exc.print() << " " << Header->GetPscuHeader()->Print();        oss << exc.print() << " " << Header->GetPscuHeader()->Print();
167        logger->error(oss.str().c_str());        logger->error(oss.str().c_str());
168        } catch (BackwardCounterException exc) {
169          oss.str("");
170          oss << exc.print() << " " << Header->GetPscuHeader()->Print();
171          logger->error(oss.str().c_str());
172      } catch (...) {      } catch (...) {
173        logger->error("Couldn't read the event. Skipping to the next header. \n");        logger->error("Couldn't read the event. Skipping to the next header. \n");
174      }      }
175      if ((step%1000) == 0) std::cout << step/1000 << "K \n";      if ((step%1000) == 0) std::cout << step/1000 << "K \n";
176        oss.str("");
177        oss << "----endPck " << Header->GetPscuHeader()->GetCounter() << "\n";
178        logger->info(oss.str().c_str());
179    }    }
180      Header->GetCounter()->PrintCounters();      Header->GetCounter()->PrintCounters();
181        //if (corruptedPacketFile.is_open()) corruptedPacketFile.close();
182  }  }
183    
 static void SkipToNextHeader(ifstream* TechmodelFile) {  
   //  yeah.  
 }  
   
   
   
184  /**  /**
185   * Unpack the PSCU header from a file into the structure.   * Unpack the PSCU header from a file into the structure.
186   */   */
187  void EventReader::UnpackPscuHeader(void) throw (WrongCRCException, LengthException) {  void EventReader::UnpackPscuHeader(unsigned char *header) throw (WrongCRCHeaderException, LengthException, BackwardCounterException) {
188      if (header == NULL) throw LengthException("errore di lunghezza");
189    stringstream oss;    stringstream oss;
190    int response = false;    int response = 0;
191    char buff[16];  
192    InputFile->read(buff, sizeof(buff));    unsigned char PacketId1    = header[3];
193        unsigned char PacketId2    = header[4];
194        unsigned int  Counter      = (((UINT32)header[5]<<16)&0x00FF0000) + (((UINT32)header[6]<<8)&0x0000FF00) + (((UINT32)header[7])&0x000000FF);
195    unsigned char PacketId1    = buff[3];    unsigned int  OrbitalTime  = (((UINT32)header[8]<<24)&0xFF000000) + (((UINT32)header[9]<<16)&0x00FF0000) +  (((UINT32)header[10]<<8)&0x0000FF00) + (((UINT32)header[11])&0x000000FF);
196    unsigned char PacketId2    = buff[4];    unsigned int  PacketLenght = (((UINT32)header[12]<<16)&0x00FF0000) +  (((UINT32)header[13]<<8)&0x0000FF00) + (((UINT32)header[14])&0x000000FF);
197    unsigned int  Counter      = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);    unsigned char CRC          = header[15];
198    unsigned int  OrbitalTime  = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) +  (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);    unsigned char FileOffset   = header[15];
199    unsigned int  PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) +  (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);  
200    unsigned char CRC          = buff[15];    long int initPos = InputFile->tellg();
201    unsigned char FileOffset   = buff[15];    // Check parameters anomalies. If initPos < 16 it is the first packet
202      // (supposing a correct starting packet!)
203      if ((Counter < prevPckCounter) && (initPos > 16)){
204        response = prevPckCounter - Counter;
205        //oss.str("");
206        //oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
207        //throw BackwardCounterException(oss.str().c_str());
208        //logger->error(oss.str().c_str());
209      }
210    
211    if (Counter < prevPckCounter){    if ((Counter > prevPckCounter + 1) && (initPos > 16)){
212        oss.str("");
213        oss << "Packet counter is greater than before of " << (Counter - prevPckCounter);
214        logger->error(oss.str().c_str());
215      }
216      
217      if ((OrbitalTime == prevPckOBT) && (PacketId1 == 0x10) && (initPos > 16)) {
218      oss.str("");      oss.str("");
219      oss << "Packet counter is less than before of " << (prevPckCounter - Counter);      oss << "Onboard Time of this packet is equal to the previous packet OBT";
220      logger->warn(oss.str().c_str());      logger->error(oss.str().c_str());
221        logger->error(Header->GetPscuHeader()->Print());
222    }    }
223    
224    if (OrbitalTime < prevPckOBT){    if ((OrbitalTime < prevPckOBT) && (initPos > 16)) {
225      oss.str("");      oss.str("");
226      oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);      oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);
227      logger->warn(oss.str().c_str());      logger->error(oss.str().c_str());
228    }    }
229    
230    if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){    if ( ((BYTE)CM_Compute_CRC16(0, (BYTE*)header, 15) == (BYTE)header[15]) && (PacketId1 == PacketId2)){
231      prevPckCounter = Counter;      prevPckCounter = Counter;
232      prevPckOBT     = OrbitalTime;      prevPckOBT     = OrbitalTime;
     long int initPos = InputFile->tellg();  
233      long int finalPos;      long int finalPos;
234      Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);      Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
235      Header->GetPscuHeader()->SetCounter(Counter);      Header->GetPscuHeader()->SetCounter(Counter);
# Line 228  void EventReader::UnpackPscuHeader(void) Line 239  void EventReader::UnpackPscuHeader(void)
239      Header->GetPscuHeader()->SetPacketLenght(PacketLenght);      Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
240      Header->GetPscuHeader()->SetCRC(CRC);      Header->GetPscuHeader()->SetCRC(CRC);
241      Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));      Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
       
     //commented out because of the above test code  
     InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);  
     if (FindStart()) {  
         finalPos =  (long int)InputFile->tellg() - (initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));  
         if(finalPos == 0){  
             logger->debug(_T(" Correct packet length"));  
             }  
         if (finalPos > 0 && finalPos < 64) {  
             oss.str("");  
             oss << " Correct packet length: Padded of " << finalPos << " bytes";  
             logger->debug(oss.str().c_str());  
         }  
         if (finalPos > 64){  
             oss.str("");  
             oss << " The begin of the next packet is far more than 64 byte from the end of the previous."  
                 << Header->GetPscuHeader()->Print();  
             logger->error(oss.str().c_str());  
             //throw LengthException("The begin of the next packet is far more than 64 byte from the end of the previous.");  
         }  
     }  
     else {  
         logger->debug(_T(" END OF FILE"));          
     }  
           
         InputFile->seekg(initPos, std::ios::beg);  
242    } else {    } else {
243         //Here i should extract the block of Data for later analysis
244      InputFile->seekg(-(13), std::ios::cur);      InputFile->seekg(-(13), std::ios::cur);
245      throw WrongCRCHeaderException();      oss.str("");
246        oss << "CRC Header Error on packet:" << PscuHeader::Print((char*)header);
247        throw WrongCRCHeaderException(oss.str().c_str());
248    }    }
249    
250  /*    char tmpId1[4];    if (response > 0){
251      char tmpId2[4];      oss.str("");
252      char tmpLength[12];      oss << "Packet counter is less than before of " << response;
253      char tmpStart[100];      throw BackwardCounterException(oss.str().c_str());
254      char tmpCRC[4];    }
     sprintf(tmpId1, "%02X", PacketId1);  
     sprintf(tmpId2, "%02X", PacketId2);  
     sprintf(tmpLength, "%06X", Header->GetPscuHeader()->GetPacketLenght());  
     sprintf(tmpStart, "%X", Header->GetPscuHeader()->GetFileOffset());  
     sprintf(tmpCRC, "%02X", CRC);  
     oss.flush();  
     oss << "\n Packet Counter (decimal) : "  <<  Counter  
         <<  "\n Id1 - Id2                : "  <<  tmpId1 <<  " - " <<  tmpId2  
         <<  "\n Orbital Time (decimal)   : "  <<  OrbitalTime  
         <<  "\n Lenght                   : "  <<  tmpLength  
         <<  "\n CRC                      : "  <<  tmpCRC  
         <<  "\n Header Start Position    : "  <<  tmpStart;  
     logger->info(oss.str().c_str());  
 */  
255  }  }
256    
257    
258  /**  /**
259   * Unpack the trailer of a PSCU event into the structure.   * Unpack the trailer of a PSCU event into the structure.
260   */   */
# Line 287  void EventReader::UnpackPscuTrailer(void Line 262  void EventReader::UnpackPscuTrailer(void
262    
263  }  }
264    
265    int EventReader::archiveCorruptedPacket(long int offset, long int length) {
266            if (!corruptedPacketFile.is_open()) {
267                    oss.str("");
268                    oss << Run->GetUnpackPath().c_str() << "Corrupted.dat";
269                    cout << oss.str().c_str() << "\n";
270                    cout << dec << offset << "\n";
271                    cout << dec << length << "\n";
272                    corruptedPacketFile.open(oss.str().c_str(), ios::out);
273            }
274            char *buffer = new char[length];
275            InputFile->seekg(offset, ios_base::beg );
276            InputFile->read(buffer, length);
277            corruptedPacketFile.write(buffer, length);
278            InputFile->seekg(offset + 1, ios_base::beg );
279    }
280    
281  /**  /**
282   * Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence   * Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
283   */   */
284  bool EventReader::FindStart(void) throw (std::exception) {  bool EventReader::FindStart(unsigned char *header, long lenght) throw (std::exception) {
285  //search an hexadecimal sequence in a file  //search an hexadecimal sequence in a file
286  //subSign    ------> pointer to the sequence buffer  //subSign    ------> pointer to the sequence buffer
287  //subSignDim ------> dimension of the buffer  //subSignDim ------> dimension of the buffer
# Line 303  bool EventReader::FindStart(void) throw Line 294  bool EventReader::FindStart(void) throw
294  //------------------------------------------  //------------------------------------------
295    int subIndex = 0;    int subIndex = 0;
296    char dataByte;    char dataByte;
297    
298    int  buffSize = 100;    int  buffSize = 64;
299    int  index = 0;    int  index = 0;
   int  loop = -1;  
300    char buffer[buffSize];    char buffer[buffSize];
301      char *offset;
302      bool flagOverPad = false;
303    
304    while (!InputFile->eof()) {    while (!InputFile->eof()) {
305      InputFile->read(buffer, sizeof(buffer));      InputFile->read(buffer, buffSize);
306      index = 0;      index = 0;
307      loop++;      offset = &buffer[0];
308      while (index < buffSize){      while (index < buffSize - 3){
309          dataByte = buffer[index++];          if (!(memcmp(offset, subSign, 3))){
310          if (dataByte == (char)(*(subSign+subIndex))){                  InputFile->seekg(index - buffSize + 16, std::ios::cur);
311              if (subIndex++ == (subSignDim-1)) {                  if (flagOverPad){
312                  InputFile->seekg( (index - (subIndex + buffSize)), std::ios::cur);                          oss.str("");
313                  return true;                          oss << "\n This packet beginning is farther than 64 byte from the end of the previous."
314              }                          << "\n Below the is the last already unpacked packet";
315          } else {                          logger->error(oss.str().c_str());
316              index = index - (subIndex);                          logger->error(Header->GetPscuHeader()->Print());
317              subIndex = 0;                  }
318                    memcpy(header, offset, lenght);
319                    return true;
320          }          }
321            index++;
322            offset++;
323      }      }
324      //Needs to guarantee the overap of the buffer(s) in several loop      //Needs to guarantee the overap of the buffer(s) in several loop
325      InputFile->seekg( (-1)*(subSignDim + 1) , std::ios::cur);      flagOverPad = true;
326        InputFile->seekg( -3 , std::ios::cur);
327    }    }
328    return false;    return false;
329  }  }
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