yoda/techmodel/EventReader.cpp

/** @file
 * $Author: kusanagi $
 * $Date: 2004/09/21 20:24:33 $
 * $Revision: 1.10 $
 * 
 * Implementation of the functions of a sample Algorithm class.
 * This file can be used as a templace to develop your own algorithm.
 */

#include <log4cxx/logger.h>
#include <fstream>
#include "TechmodelAlgorithm.h"
#include "EventReader.h"
#include "ReaderAlgorithms.h"
#include "Exception.h"
#include "stdio.h"
extern "C" {
#include "CRC.h"
}

#define BYTE unsigned char

using namespace pamela;
using namespace pamela::techmodel;

static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.EventReader"));

unsigned int EventReader::maxPackets     = 0;
unsigned int EventReader::prevPckCounter = 0;
unsigned int EventReader::prevPckOBT     = 0;


/**
 * Constructor. 
 */
EventReader::EventReader(int packetsLimit = -1): 
  TechmodelAlgorithm(0, "TechmodelEventReader"){ 
//EventReader::EventReader(void): 
//  TechmodelAlgorithm(0, "TechmodelEventReader") { 
  EventReader::maxPackets = packetsLimit;
  logger->debug(_T("Constructor"));
  Header = new EventHeader();

  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun,      new PhysEndRunReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1,  new CalibCalPulse1Reader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2,  new CalibCalPulse2Reader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics,         new PhysicsReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth,    new CalibTrkBothReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1,       new CalibTrk1Reader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2,       new CalibTrk2Reader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrd,        new CalibTrdReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof,        new CalibTofReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4,         new CalibS4Reader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed,     new CalibCalPedReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibAc,         new CalibAcReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader,       new RunHeaderReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer,      new RunTrailerReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader,     new CalibHeaderReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer,    new CalibTrailerReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader,      new InitHeaderReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer,     new InitTrailerReader()));
  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()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log,             new LogReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump,         new VarDumpReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump,         new ArrDumpReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump,         new TabDumpReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc,            new TmtcReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd,            new McmdReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd,     new ForcedFECmdReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcInit,          new AcInitReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit,         new CalInitReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit,         new TrkInitReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit,         new TofInitReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit,         new TrgInitReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm,        new CalAlarmReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcAlarm,         new AcAlarmReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm,        new TrkAlarmReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm,        new TrgAlarmReader()));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm,        new TofAlarmReader()));
}

/**
 * Get a string with the version info of the algorithm.
 */
std::string EventReader::GetVersionInfo(void) const {
  return 
    "$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 1.10 2004/09/21 20:24:33 kusanagi Exp $\n";
}

/**
 * Initialize the algorithm with a special run. This will initialize the
 * event reader routines for all packet types.
 */
void EventReader::Init(PamelaRun *run) {
    std::stringstream oss;
    logger->debug(_T("Initialize"));
    SetInputStream(run);
    
    //Create the structure of directories and create xxx.Header.root files
    run->WriteHeaders(this, &Header); 

    //Create the xxx.root in it's specific directory
    for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin(); 
       i != TechmodelAlgorithmMap.end(); i++) {
       oss.flush();
       oss << "Initializing algo " << i->second->GetAlgorithmName();
       //cout << "Initializing algo " << i->second->GetAlgorithmName();
       logger->debug(oss.str().c_str());
       i->second->Init(run);
    }
    Run = dynamic_cast<TechmodelPamelaRun*>(run);
}

static void SkipToNextHeader(ifstream *);

/**
 * Read the next event header, call the reader algorithms that
 * correspond to its packet type, and read the event trailer.
 */

// 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------------------
void EventReader::RunEvent(int EventNumber) {
  //for now i'll suppose that the raw file starts immediately with the right bytes
  //to insert a GetPacketStart()
  stringstream oss;
  int step = 0;
  while (!InputFile->eof() && ((step++ < maxPackets) || (maxPackets == 0))){
    try {
      if (FindStart()) {
        if(UnpackPscuHeader()){
            const PacketType* type = Header->GetPscuHeader()->GetPacketType();
            AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type); 
            if (i != TechmodelAlgorithmMap.end()) {
                TechmodelAlgorithm *EventAlgorithm = i->second;
                EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
                Run->FillTrees(type);
                Header->GetCounter()->Increment(type);
            } else {
                oss.flush();
                oss << "No way to read events of type" << type->GetName();
                logger->info(oss.str().c_str());
            throw Exception("No way to read events of type " + type->GetName());
        }
      } //else {
        //**TO BE DONE**   <<WRONG CRC l --- LOST PACKET>>//
        //Have to be defined a "WrongCRC" packet::Type?
        //}
     }
    } catch (...) {
      //This have to be more detailed. More exceptions type are needed.
      logger->error("Couldn't read the event. Skipping to the next header.");
    }
    if ((step%1000) == 0) std::cout << step << "K \n";
  }
    Header->GetCounter()->PrintCounters();
}

static void SkipToNextHeader(ifstream* TechmodelFile) {
  //  yeah.
}


/**
 * Unpack the PSCU header from a file into the structure.
 */
int EventReader::UnpackPscuHeader(void) throw (std::exception) {
  stringstream oss;
  int response;
  char buff[16];
  InputFile->read(buff, sizeof(buff));
  
  
  unsigned char PacketId1    = buff[3];
  unsigned char PacketId2    = buff[4];
  unsigned int  Counter      = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
  unsigned int  OrbitalTime  = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) +  (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
  unsigned int  PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) +  (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
  unsigned char CRC          = buff[15];
  unsigned char FileOffset   = buff[15];

  if (Counter < prevPckCounter){
    oss.flush();
    oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
    logger->info(oss.str().c_str());
  }

  if (OrbitalTime < prevPckOBT){
    oss.flush();
    oss << " Orbital Time is less than before of " << (prevPckOBT - OrbitalTime);
    logger->info(oss.str().c_str());
  }

 
  if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
    prevPckCounter = Counter;
    prevPckOBT     = OrbitalTime;
    long int initPos = InputFile->tellg();
    long int finalPos;
    Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
    Header->GetPscuHeader()->SetCounter(Counter);
    Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
    //PacketLength is the length of the whole DATApacket starting from the first byte after the header
    //plus the CRC legth (which varies for each type of packet)
    Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
    Header->GetPscuHeader()->SetCRC(CRC);
    Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
    
    //commented out because of the above test code
    InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);
    FindStart();
    finalPos =  (long int)InputFile->tellg() - (1 + initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));
        if(finalPos == 0){
            logger->debug(_T("Correct packet length"));
            } 
        if (finalPos > 0 && finalPos < 64) {
            oss.flush();
            oss << " Correct packet length: Padded of " << finalPos << " bytes";
            logger->warn(oss.str().c_str());
        } 
        if (finalPos > 64){
            logger->warn(_T(" Wrong packet length? (because of wrong padding?)"));
        }
        InputFile->seekg(initPos, std::ios::beg);
        response =  true;
  } else {
    logger->warn(_T(" WRONG CRC FOR HEADER "));
    InputFile->seekg(-(13), std::ios::cur);
    response =  false; 
  }
    char tmpId1[4];
    char tmpId2[4];
    char tmpLength[12];
    char tmpStart[100];
    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());
  return response;
}

/**
 * Unpack the trailer of a PSCU event into the structure.
 */
void EventReader::UnpackPscuTrailer(void) throw (std::exception) {

}

/**
 * Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
 */
int EventReader::FindStart(void) throw (std::exception) {
//search an hexadecimal sequence in a file
//subSign    ------> pointer to the sequence buffer
//subSignDim ------> dimension of the buffer
// at exit
// return true if founds a match (else false)
// subF point rigth after the match, if found. Else EOF.
//Maurizio 15/11/2002-----------------------
  const unsigned char subSign[3]={0xFA, 0xFE, 0xDE};
  int subSignDim = 3;
//------------------------------------------
  int subIndex = 0;
  char dataByte;

  int  buffSize = 100;
  int  index = 0;
  int  loop = 0;
  char buffer[buffSize];

  /* original version
  while (!InputFile->eof()) {
    InputFile->get(dataByte);
    if (dataByte == (char)(*(subSign+subIndex))){
      if (subIndex++ == (subSignDim-1)) {
         InputFile->seekg(-(subIndex), std::ios::cur);
        return 1;
       }
    } else {
      if (InputFile->eof()) {
        throw Exception("Extra bytes over the last packets");
      } else {
        subIndex = 0;
      }
    } 
  } */
  while (!InputFile->eof()) {
    InputFile->read(buffer, sizeof(buffer));
    index = 0;
    ++loop;
    while (index < buffSize){
        dataByte = buffer[index++];
        if (dataByte == (char)(*(subSign+subIndex))){
            if (subIndex++ == (subSignDim-1)) {
                InputFile->seekg( (index - subIndex - (buffSize*loop)), std::ios::cur);
            return 1;
            }
        } else {
            subIndex = 0;
        }
    }
  } 
  return 0;
} 

ClassImp(EventReader)
1	kusanagi	1.1	/** @file
2	kusanagi	1.2	* $Author: kusanagi $
3	kusanagi	2.0	* $Date: 2004/09/21 20:24:33 $
4			* $Revision: 1.10 $
5	kusanagi	1.1	*
6			* Implementation of the functions of a sample Algorithm class.
7			* This file can be used as a templace to develop your own algorithm.
8			*/
9
10	kusanagi	1.10	#include <log4cxx/logger.h>
11	kusanagi	1.1	#include <fstream>
12			#include "TechmodelAlgorithm.h"
13			#include "EventReader.h"
14			#include "ReaderAlgorithms.h"
15			#include "Exception.h"
16			#include "stdio.h"
17			extern "C" {
18			#include "CRC.h"
19			}
20
21			#define BYTE unsigned char
22
23			using namespace pamela;
24			using namespace pamela::techmodel;
25
26	kusanagi	1.10	static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.EventReader"));
27
28			unsigned int EventReader::maxPackets = 0;
29	kusanagi	1.7	unsigned int EventReader::prevPckCounter = 0;
30			unsigned int EventReader::prevPckOBT = 0;
31	kusanagi	1.10
32
33	kusanagi	1.1	/**
34			* Constructor.
35			*/
36	kusanagi	1.10	EventReader::EventReader(int packetsLimit = -1):
37			TechmodelAlgorithm(0, "TechmodelEventReader"){
38			//EventReader::EventReader(void):
39			// TechmodelAlgorithm(0, "TechmodelEventReader") {
40			EventReader::maxPackets = packetsLimit;
41			logger->debug(_T("Constructor"));
42	kusanagi	1.1	Header = new EventHeader();
43	kusanagi	1.5
44	kusanagi	1.6	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun, new PhysEndRunReader()));
45			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1, new CalibCalPulse1Reader()));
46			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2, new CalibCalPulse2Reader()));
47			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics, new PhysicsReader()));
48			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth, new CalibTrkBothReader()));
49			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1, new CalibTrk1Reader()));
50			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2, new CalibTrk2Reader()));
51			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrd, new CalibTrdReader()));
52			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof, new CalibTofReader()));
53			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4, new CalibS4Reader()));
54			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed, new CalibCalPedReader()));
55			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibAc, new CalibAcReader()));
56			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader, new RunHeaderReader()));
57			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer, new RunTrailerReader()));
58			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader, new CalibHeaderReader()));
59			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer, new CalibTrailerReader()));
60			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader, new InitHeaderReader()));
61			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer, new InitTrailerReader()));
62			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk, new EventTrkReader()));
63			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTrk, new TestTrkReader()));
64	kusanagi	1.10	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTof, new TestTofReader()));
65	kusanagi	1.6	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log, new LogReader()));
66			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump, new VarDumpReader()));
67			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump, new ArrDumpReader()));
68			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump, new TabDumpReader()));
69			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc, new TmtcReader()));
70			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd, new McmdReader()));
71			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd, new ForcedFECmdReader()));
72			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcInit, new AcInitReader()));
73			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit, new CalInitReader()));
74			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit, new TrkInitReader()));
75			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit, new TofInitReader()));
76			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit, new TrgInitReader()));
77	kusanagi	1.10	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm, new CalAlarmReader()));
78			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcAlarm, new AcAlarmReader()));
79			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm, new TrkAlarmReader()));
80			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm, new TrgAlarmReader()));
81			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm, new TofAlarmReader()));
82	kusanagi	1.1	}
83
84			/**
85			* Get a string with the version info of the algorithm.
86			*/
87			std::string EventReader::GetVersionInfo(void) const {
88			return
89	kusanagi	2.0	"$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 1.10 2004/09/21 20:24:33 kusanagi Exp $\n";
90	kusanagi	1.1	}
91
92			/**
93			* Initialize the algorithm with a special run. This will initialize the
94			* event reader routines for all packet types.
95			*/
96			void EventReader::Init(PamelaRun *run) {
97	kusanagi	1.10	std::stringstream oss;
98			logger->debug(_T("Initialize"));
99	kusanagi	1.1	SetInputStream(run);
100
101			//Create the structure of directories and create xxx.Header.root files
102			run->WriteHeaders(this, &Header);
103
104			//Create the xxx.root in it's specific directory
105			for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin();
106			i != TechmodelAlgorithmMap.end(); i++) {
107	kusanagi	1.10	oss.flush();
108			oss << "Initializing algo " << i->second->GetAlgorithmName();
109			//cout << "Initializing algo " << i->second->GetAlgorithmName();
110			logger->debug(oss.str().c_str());
111	kusanagi	1.1	i->second->Init(run);
112			}
113			Run = dynamic_cast<TechmodelPamelaRun*>(run);
114			}
115
116			static void SkipToNextHeader(ifstream *);
117
118			/**
119			* Read the next event header, call the reader algorithms that
120			* correspond to its packet type, and read the event trailer.
121			*/
122
123			// 15 June 2004 ---note------------------
124			// A nice refacoring would require to not read again the packet data (which is
125			// read in the UnpackPscuHeader() and put directly in the
126			// EventAlgorithm->RunEvent(....) directly the data inside the packet.... will see later....
127			// 15 June 2004 ---note------------------
128			void EventReader::RunEvent(int EventNumber) {
129			//for now i'll suppose that the raw file starts immediately with the right bytes
130			//to insert a GetPacketStart()
131	kusanagi	1.10	stringstream oss;
132			int step = 0;
133			while (!InputFile->eof() && ((step++ < maxPackets) \|\| (maxPackets == 0))){
134	kusanagi	1.1	try {
135			if (FindStart()) {
136			if(UnpackPscuHeader()){
137			const PacketType* type = Header->GetPscuHeader()->GetPacketType();
138			AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);
139			if (i != TechmodelAlgorithmMap.end()) {
140			TechmodelAlgorithm *EventAlgorithm = i->second;
141			EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
142			Run->FillTrees(type);
143			Header->GetCounter()->Increment(type);
144			} else {
145	kusanagi	1.10	oss.flush();
146			oss << "No way to read events of type" << type->GetName();
147			logger->info(oss.str().c_str());
148	kusanagi	1.1	throw Exception("No way to read events of type " + type->GetName());
149			}
150			} //else {
151			//TO BE DONE <<WRONG CRC l --- LOST PACKET>>//
152			//Have to be defined a "WrongCRC" packet::Type?
153			//}
154	kusanagi	1.7	}
155	kusanagi	1.1	} catch (...) {
156			//This have to be more detailed. More exceptions type are needed.
157	kusanagi	1.10	logger->error("Couldn't read the event. Skipping to the next header.");
158	kusanagi	1.1	}
159	kusanagi	1.10	if ((step%1000) == 0) std::cout << step << "K \n";
160	kusanagi	1.1	}
161	kusanagi	1.10	Header->GetCounter()->PrintCounters();
162	kusanagi	1.1	}
163
164			static void SkipToNextHeader(ifstream* TechmodelFile) {
165			// yeah.
166			}
167
168
169
170			/**
171			* Unpack the PSCU header from a file into the structure.
172			*/
173			int EventReader::UnpackPscuHeader(void) throw (std::exception) {
174	kusanagi	1.10	stringstream oss;
175	kusanagi	1.1	int response;
176			char buff[16];
177			InputFile->read(buff, sizeof(buff));
178
179
180			unsigned char PacketId1 = buff[3];
181			unsigned char PacketId2 = buff[4];
182			unsigned int Counter = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
183			unsigned int OrbitalTime = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) + (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
184			unsigned int PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) + (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
185			unsigned char CRC = buff[15];
186	kusanagi	1.9	unsigned char FileOffset = buff[15];
187	kusanagi	1.1
188			if (Counter < prevPckCounter){
189	kusanagi	1.10	oss.flush();
190			oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
191			logger->info(oss.str().c_str());
192	kusanagi	1.1	}
193
194			if (OrbitalTime < prevPckOBT){
195	kusanagi	1.10	oss.flush();
196			oss << " Orbital Time is less than before of " << (prevPckOBT - OrbitalTime);
197			logger->info(oss.str().c_str());
198	kusanagi	1.1	}
199
200
201	kusanagi	1.7	if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
202			prevPckCounter = Counter;
203			prevPckOBT = OrbitalTime;
204	kusanagi	1.1	long int initPos = InputFile->tellg();
205			long int finalPos;
206			Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
207			Header->GetPscuHeader()->SetCounter(Counter);
208			Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
209			//PacketLength is the length of the whole DATApacket starting from the first byte after the header
210			//plus the CRC legth (which varies for each type of packet)
211			Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
212			Header->GetPscuHeader()->SetCRC(CRC);
213	kusanagi	1.9	Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
214	kusanagi	1.1
215			//commented out because of the above test code
216			InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);
217			FindStart();
218			finalPos = (long int)InputFile->tellg() - (1 + initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));
219			if(finalPos == 0){
220	kusanagi	1.10	logger->debug(_T("Correct packet length"));
221	kusanagi	1.1	}
222			if (finalPos > 0 && finalPos < 64) {
223	kusanagi	1.10	oss.flush();
224			oss << " Correct packet length: Padded of " << finalPos << " bytes";
225			logger->warn(oss.str().c_str());
226	kusanagi	1.1	}
227			if (finalPos > 64){
228	kusanagi	1.10	logger->warn(_T(" Wrong packet length? (because of wrong padding?)"));
229	kusanagi	1.1	}
230			InputFile->seekg(initPos, std::ios::beg);
231			response = true;
232			} else {
233	kusanagi	1.10	logger->warn(_T(" WRONG CRC FOR HEADER "));
234	kusanagi	1.8	InputFile->seekg(-(13), std::ios::cur);
235	kusanagi	1.1	response = false;
236			}
237			char tmpId1[4];
238			char tmpId2[4];
239			char tmpLength[12];
240			char tmpStart[100];
241			char tmpCRC[4];
242			sprintf(tmpId1, "%02X", PacketId1);
243			sprintf(tmpId2, "%02X", PacketId2);
244	kusanagi	1.4	sprintf(tmpLength, "%06X", Header->GetPscuHeader()->GetPacketLenght());
245	kusanagi	1.9	sprintf(tmpStart, "%X", Header->GetPscuHeader()->GetFileOffset());
246	kusanagi	1.1	sprintf(tmpCRC, "%02X", CRC);
247	kusanagi	1.10	oss.flush();
248			oss << "\n Packet Counter (decimal) : " << Counter
249	kusanagi	1.1	<< "\n Id1 - Id2 : " << tmpId1 << " - " << tmpId2
250			<< "\n Orbital Time (decimal) : " << OrbitalTime
251			<< "\n Lenght : " << tmpLength
252			<< "\n CRC : " << tmpCRC
253	kusanagi	1.10	<< "\n Header Start Position : " << tmpStart;
254			logger->info(oss.str().c_str());
255	kusanagi	1.1	return response;
256			}
257
258			/**
259			* Unpack the trailer of a PSCU event into the structure.
260			*/
261			void EventReader::UnpackPscuTrailer(void) throw (std::exception) {
262
263			}
264
265			/**
266			* Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
267			*/
268			int EventReader::FindStart(void) throw (std::exception) {
269			//search an hexadecimal sequence in a file
270			//subSign ------> pointer to the sequence buffer
271			//subSignDim ------> dimension of the buffer
272			// at exit
273			// return true if founds a match (else false)
274			// subF point rigth after the match, if found. Else EOF.
275			//Maurizio 15/11/2002-----------------------
276			const unsigned char subSign[3]={0xFA, 0xFE, 0xDE};
277			int subSignDim = 3;
278			//------------------------------------------
279			int subIndex = 0;
280			char dataByte;
281	kusanagi	1.10
282			int buffSize = 100;
283			int index = 0;
284			int loop = 0;
285			char buffer[buffSize];
286
287			/* original version
288	kusanagi	1.1	while (!InputFile->eof()) {
289			InputFile->get(dataByte);
290			if (dataByte == (char)(*(subSign+subIndex))){
291			if (subIndex++ == (subSignDim-1)) {
292			InputFile->seekg(-(subIndex), std::ios::cur);
293			return 1;
294			}
295			} else {
296			if (InputFile->eof()) {
297			throw Exception("Extra bytes over the last packets");
298			} else {
299	kusanagi	1.8	subIndex = 0;
300	kusanagi	1.1	}
301			}
302	kusanagi	1.10	} */
303			while (!InputFile->eof()) {
304			InputFile->read(buffer, sizeof(buffer));
305			index = 0;
306			++loop;
307			while (index < buffSize){
308			dataByte = buffer[index++];
309			if (dataByte == (char)(*(subSign+subIndex))){
310			if (subIndex++ == (subSignDim-1)) {
311			InputFile->seekg( (index - subIndex - (buffSize*loop)), std::ios::cur);
312			return 1;
313			}
314			} else {
315			subIndex = 0;
316			}
317			}
318			}
319	kusanagi	1.1	return 0;
320			}
321
322			ClassImp(EventReader)