yoda/techmodel/EventReader.cpp

/** @file
 * $Author: kusanagi $
 * $Date: 2004/08/24 13:19:59 $
 * $Revision: 1.8 $
 * 
 * Implementation of the functions of a sample Algorithm class.
 * This file can be used as a templace to develop your own algorithm.
 */

#include <log4cpp/Category.hh>
#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 log4cpp::Category& cat = log4cpp::Category::getInstance("pamela.techmodel.EventReader");
unsigned int EventReader::prevPckCounter = 0;
unsigned int EventReader::prevPckOBT     = 0;
/**
 * Constructor. 
 */
EventReader::EventReader(void): 
  TechmodelAlgorithm(0, "TechmodelEventReader") { 
  cat <<  log4cpp::Priority::DEBUG
      <<  "Constructor "
      <<  "\n " << log4cpp::CategoryStream::ENDLINE;
  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::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()));
}

/**
 * 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 1.8 2004/08/24 13:19:59 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) {
    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++) {
       cat  <<  log4cpp::Priority::DEBUG 
            <<  " Initializing algo " << i->second->GetAlgorithmName()
            <<  "\n " << log4cpp::CategoryStream::ENDLINE;
       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) {
  
  cat <<  log4cpp::Priority::INFO <<  "Start Unpacking........"
      <<  "\n " << log4cpp::CategoryStream::ENDLINE;
  //for now i'll suppose that the raw file starts immediately with the right bytes
  //to insert a GetPacketStart()
  while (!InputFile->eof()){
    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 {
            cat <<  log4cpp::Priority::ERROR 
                <<  "No way to read events of type" << type->GetName()
                <<  "\n " << log4cpp::CategoryStream::ENDLINE;
            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.
      cat <<  log4cpp::Priority::ERROR <<  "Couldn't read the event. Skipping to the next header."
          <<  "\n " << log4cpp::CategoryStream::ENDLINE;
    }
  }
  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) {
  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){
    cat <<  log4cpp::Priority::WARN
        <<  " Packet counter is less than before of " << (prevPckCounter - Counter)
        <<  " " << log4cpp::CategoryStream::ENDLINE;
  }

  if (OrbitalTime < prevPckOBT){
      cat <<  log4cpp::Priority::WARN
          <<  " Orbital Time is less than before of " << (prevPckOBT - OrbitalTime)
          <<  " " << log4cpp::CategoryStream::ENDLINE;
  }

 
  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){
            cat <<  log4cpp::Priority::DEBUG <<  " Correct packet length" 
                <<  " " << log4cpp::CategoryStream::ENDLINE;
            } 
        if (finalPos > 0 && finalPos < 64) {
            cat <<  log4cpp::Priority::WARN
                <<  " Correct packet length: Padded of " << finalPos << " bytes"
                <<  " " << log4cpp::CategoryStream::ENDLINE;
        } 
        if (finalPos > 64){
            cat <<  log4cpp::Priority::ERROR <<  " Wrong packet length? (because of wrong padding?) "
                <<  " " << log4cpp::CategoryStream::ENDLINE;
        }
        InputFile->seekg(initPos, std::ios::beg);
        response =  true;
  } else {
    cat <<  log4cpp::Priority::ERROR <<  " WRONG CRC FOR HEADER "
        <<  " " << log4cpp::CategoryStream::ENDLINE;
    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);
    cat <<  log4cpp::Priority::INFO  
        <<  "\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
        <<  "\n " << log4cpp::CategoryStream::ENDLINE;
  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;
  /*InputFile->read(fileByte, 1); 
    if ( *fileByte ==  *(subSign+subIndex)){
       if (subIndex++ == (subSignDim-1)) {
        InputFile->seekg(-(subIndex), std::ios::cur);
        return 1;
      }
      }*/
  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;
        //return 0;
      }
      //InputFile->seekg(-(subIndex+1), std::ios::cur);
      //subIndex = 0;
    } 
  }
  return 0;
} 

ClassImp(EventReader)
1	kusanagi	1.1	/** @file
2	kusanagi	1.2	* $Author: kusanagi $
3	kusanagi	1.9	* $Date: 2004/08/24 13:19:59 $
4			* $Revision: 1.8 $
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			#include <log4cpp/Category.hh>
11			#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			static log4cpp::Category& cat = log4cpp::Category::getInstance("pamela.techmodel.EventReader");
27	kusanagi	1.7	unsigned int EventReader::prevPckCounter = 0;
28			unsigned int EventReader::prevPckOBT = 0;
29	kusanagi	1.1	/**
30			* Constructor.
31			*/
32			EventReader::EventReader(void):
33			TechmodelAlgorithm(0, "TechmodelEventReader") {
34			cat << log4cpp::Priority::DEBUG
35			<< "Constructor "
36			<< "\n " << log4cpp::CategoryStream::ENDLINE;
37			Header = new EventHeader();
38	kusanagi	1.5
39	kusanagi	1.6	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun, new PhysEndRunReader()));
40			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1, new CalibCalPulse1Reader()));
41			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2, new CalibCalPulse2Reader()));
42			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics, new PhysicsReader()));
43			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth, new CalibTrkBothReader()));
44			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1, new CalibTrk1Reader()));
45			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2, new CalibTrk2Reader()));
46			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrd, new CalibTrdReader()));
47			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof, new CalibTofReader()));
48			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4, new CalibS4Reader()));
49			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed, new CalibCalPedReader()));
50			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibAc, new CalibAcReader()));
51			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader, new RunHeaderReader()));
52			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer, new RunTrailerReader()));
53			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader, new CalibHeaderReader()));
54			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer, new CalibTrailerReader()));
55			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader, new InitHeaderReader()));
56			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer, new InitTrailerReader()));
57			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk, new EventTrkReader()));
58			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTrk, new TestTrkReader()));
59			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log, new LogReader()));
60			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump, new VarDumpReader()));
61			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump, new ArrDumpReader()));
62			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump, new TabDumpReader()));
63			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc, new TmtcReader()));
64			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd, new McmdReader()));
65			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd, new ForcedFECmdReader()));
66			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcInit, new AcInitReader()));
67			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit, new CalInitReader()));
68			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit, new TrkInitReader()));
69			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit, new TofInitReader()));
70			TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit, new TrgInitReader()));
71	kusanagi	1.1	}
72
73			/**
74			* Get a string with the version info of the algorithm.
75			*/
76			std::string EventReader::GetVersionInfo(void) const {
77			return
78	kusanagi	1.9	"$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 1.8 2004/08/24 13:19:59 kusanagi Exp $\n";
79	kusanagi	1.1	}
80
81			/**
82			* Initialize the algorithm with a special run. This will initialize the
83			* event reader routines for all packet types.
84			*/
85			void EventReader::Init(PamelaRun *run) {
86			SetInputStream(run);
87
88			//Create the structure of directories and create xxx.Header.root files
89			run->WriteHeaders(this, &Header);
90
91			//Create the xxx.root in it's specific directory
92			for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin();
93			i != TechmodelAlgorithmMap.end(); i++) {
94			cat << log4cpp::Priority::DEBUG
95			<< " Initializing algo " << i->second->GetAlgorithmName()
96			<< "\n " << log4cpp::CategoryStream::ENDLINE;
97			i->second->Init(run);
98			}
99			Run = dynamic_cast<TechmodelPamelaRun*>(run);
100			}
101
102			static void SkipToNextHeader(ifstream *);
103
104			/**
105			* Read the next event header, call the reader algorithms that
106			* correspond to its packet type, and read the event trailer.
107			*/
108
109			// 15 June 2004 ---note------------------
110			// A nice refacoring would require to not read again the packet data (which is
111			// read in the UnpackPscuHeader() and put directly in the
112			// EventAlgorithm->RunEvent(....) directly the data inside the packet.... will see later....
113			// 15 June 2004 ---note------------------
114			void EventReader::RunEvent(int EventNumber) {
115
116	kusanagi	1.6	cat << log4cpp::Priority::INFO << "Start Unpacking........"
117	kusanagi	1.1	<< "\n " << log4cpp::CategoryStream::ENDLINE;
118			//for now i'll suppose that the raw file starts immediately with the right bytes
119			//to insert a GetPacketStart()
120			while (!InputFile->eof()){
121			try {
122			if (FindStart()) {
123			if(UnpackPscuHeader()){
124			const PacketType* type = Header->GetPscuHeader()->GetPacketType();
125			AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);
126			if (i != TechmodelAlgorithmMap.end()) {
127			TechmodelAlgorithm *EventAlgorithm = i->second;
128			EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
129			Run->FillTrees(type);
130			Header->GetCounter()->Increment(type);
131			} else {
132			cat << log4cpp::Priority::ERROR
133			<< "No way to read events of type" << type->GetName()
134			<< "\n " << log4cpp::CategoryStream::ENDLINE;
135			throw Exception("No way to read events of type " + type->GetName());
136			}
137			} //else {
138			//TO BE DONE <<WRONG CRC l --- LOST PACKET>>//
139			//Have to be defined a "WrongCRC" packet::Type?
140			//}
141	kusanagi	1.7	}
142	kusanagi	1.1	} catch (...) {
143			//This have to be more detailed. More exceptions type are needed.
144			cat << log4cpp::Priority::ERROR << "Couldn't read the event. Skipping to the next header."
145			<< "\n " << log4cpp::CategoryStream::ENDLINE;
146			}
147			}
148			Header->GetCounter()->PrintCounters();
149			}
150
151			static void SkipToNextHeader(ifstream* TechmodelFile) {
152			// yeah.
153			}
154
155
156
157			/**
158			* Unpack the PSCU header from a file into the structure.
159			*/
160			int EventReader::UnpackPscuHeader(void) throw (std::exception) {
161			int response;
162			char buff[16];
163			InputFile->read(buff, sizeof(buff));
164
165
166			unsigned char PacketId1 = buff[3];
167			unsigned char PacketId2 = buff[4];
168			unsigned int Counter = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
169			unsigned int OrbitalTime = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) + (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
170			unsigned int PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) + (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
171			unsigned char CRC = buff[15];
172	kusanagi	1.9	unsigned char FileOffset = buff[15];
173	kusanagi	1.1
174			if (Counter < prevPckCounter){
175	kusanagi	1.6	cat << log4cpp::Priority::WARN
176	kusanagi	1.1	<< " Packet counter is less than before of " << (prevPckCounter - Counter)
177	kusanagi	1.7	<< " " << log4cpp::CategoryStream::ENDLINE;
178	kusanagi	1.1	}
179
180			if (OrbitalTime < prevPckOBT){
181			cat << log4cpp::Priority::WARN
182			<< " Orbital Time is less than before of " << (prevPckOBT - OrbitalTime)
183	kusanagi	1.7	<< " " << log4cpp::CategoryStream::ENDLINE;
184	kusanagi	1.1	}
185
186
187	kusanagi	1.7	if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
188			prevPckCounter = Counter;
189			prevPckOBT = OrbitalTime;
190	kusanagi	1.1	long int initPos = InputFile->tellg();
191			long int finalPos;
192			Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
193			Header->GetPscuHeader()->SetCounter(Counter);
194			Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
195			//PacketLength is the length of the whole DATApacket starting from the first byte after the header
196			//plus the CRC legth (which varies for each type of packet)
197			Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
198			Header->GetPscuHeader()->SetCRC(CRC);
199	kusanagi	1.9	Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
200	kusanagi	1.1
201			//commented out because of the above test code
202			InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);
203			FindStart();
204			finalPos = (long int)InputFile->tellg() - (1 + initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));
205			if(finalPos == 0){
206	kusanagi	1.7	cat << log4cpp::Priority::DEBUG << " Correct packet length"
207			<< " " << log4cpp::CategoryStream::ENDLINE;
208	kusanagi	1.1	}
209			if (finalPos > 0 && finalPos < 64) {
210			cat << log4cpp::Priority::WARN
211	kusanagi	1.7	<< " Correct packet length: Padded of " << finalPos << " bytes"
212			<< " " << log4cpp::CategoryStream::ENDLINE;
213	kusanagi	1.1	}
214			if (finalPos > 64){
215	kusanagi	1.7	cat << log4cpp::Priority::ERROR << " Wrong packet length? (because of wrong padding?) "
216			<< " " << log4cpp::CategoryStream::ENDLINE;
217	kusanagi	1.1	}
218			InputFile->seekg(initPos, std::ios::beg);
219			response = true;
220			} else {
221			cat << log4cpp::Priority::ERROR << " WRONG CRC FOR HEADER "
222	kusanagi	1.7	<< " " << log4cpp::CategoryStream::ENDLINE;
223	kusanagi	1.8	InputFile->seekg(-(13), std::ios::cur);
224	kusanagi	1.1	response = false;
225			}
226			char tmpId1[4];
227			char tmpId2[4];
228			char tmpLength[12];
229			char tmpStart[100];
230			char tmpCRC[4];
231			sprintf(tmpId1, "%02X", PacketId1);
232			sprintf(tmpId2, "%02X", PacketId2);
233	kusanagi	1.4	sprintf(tmpLength, "%06X", Header->GetPscuHeader()->GetPacketLenght());
234	kusanagi	1.9	sprintf(tmpStart, "%X", Header->GetPscuHeader()->GetFileOffset());
235	kusanagi	1.1	sprintf(tmpCRC, "%02X", CRC);
236			cat << log4cpp::Priority::INFO
237			<< "\n Packet Counter (decimal) : " << Counter
238			<< "\n Id1 - Id2 : " << tmpId1 << " - " << tmpId2
239			<< "\n Orbital Time (decimal) : " << OrbitalTime
240			<< "\n Lenght : " << tmpLength
241			<< "\n CRC : " << tmpCRC
242			<< "\n Header Start Position : " << tmpStart
243			<< "\n " << log4cpp::CategoryStream::ENDLINE;
244			return response;
245			}
246
247			/**
248			* Unpack the trailer of a PSCU event into the structure.
249			*/
250			void EventReader::UnpackPscuTrailer(void) throw (std::exception) {
251
252			}
253
254			/**
255			* Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
256			*/
257			int EventReader::FindStart(void) throw (std::exception) {
258			//search an hexadecimal sequence in a file
259			//subSign ------> pointer to the sequence buffer
260			//subSignDim ------> dimension of the buffer
261			// at exit
262			// return true if founds a match (else false)
263			// subF point rigth after the match, if found. Else EOF.
264			//Maurizio 15/11/2002-----------------------
265			const unsigned char subSign[3]={0xFA, 0xFE, 0xDE};
266			int subSignDim = 3;
267			//------------------------------------------
268			int subIndex = 0;
269			char dataByte;
270			/*InputFile->read(fileByte, 1);
271			if ( fileByte == (subSign+subIndex)){
272			if (subIndex++ == (subSignDim-1)) {
273			InputFile->seekg(-(subIndex), std::ios::cur);
274			return 1;
275			}
276			}*/
277			while (!InputFile->eof()) {
278			InputFile->get(dataByte);
279			if (dataByte == (char)(*(subSign+subIndex))){
280			if (subIndex++ == (subSignDim-1)) {
281			InputFile->seekg(-(subIndex), std::ios::cur);
282			return 1;
283			}
284			} else {
285			if (InputFile->eof()) {
286			throw Exception("Extra bytes over the last packets");
287			} else {
288	kusanagi	1.8	subIndex = 0;
289			//return 0;
290	kusanagi	1.1	}
291			//InputFile->seekg(-(subIndex+1), std::ios::cur);
292			//subIndex = 0;
293			}
294			}
295			return 0;
296			}
297
298			ClassImp(EventReader)