DTROS25FileReader Class Reference

#include <DTROS25FileReader.h>

Inheritance diagram for DTROS25FileReader:

Public Member Functions
virtual bool	checkEndOfFile ()
	DTROS25FileReader (const edm::ParameterSet &pset)
	Constructor. More...
virtual int	fillRawData (edm::EventID &eID, edm::Timestamp &tstamp, FEDRawDataCollection *&data)
	Generate and fill FED raw data for a full event. More...
bool	isHeader (uint32_t word)
	check for a 32 bits word to be a ROS25 header More...
bool	isTrailer (uint32_t word)
	check for a 32 bits word to be a ROS25 trailer More...
void	swap (uint32_t &word)
	swapping the lsBits with the msBits More...
virtual	~DTROS25FileReader ()
	Destructor. More...
Public Member Functions inherited from DaqBaseReader
	DaqBaseReader ()
virtual void	setRunNumber (edm::RunNumber_t runNumber)
	set the run number More...
virtual	~DaqBaseReader ()

Private Attributes
edm::EventNumber_t	eventNumber
RawFile	inputFile
edm::RunNumber_t	runNumber

Static Private Attributes
static const int	rosWordLenght = 4

Detailed Description

Read DT ROS8 raw data files

Date:

2010/02/03 16:58:24

Revision:

1.6

Author

M. Zanetti - INFN Padova

Definition at line 20 of file DTROS25FileReader.h.

Constructor & Destructor Documentation

DTROS25FileReader::DTROS25FileReader

(

const edm::ParameterSet &

pset

)

Constructor.

Definition at line 32 of file DTROS25FileReader.cc.

References edm::hlt::Exception, RawFile::fail(), lut2db_cfg::filename, edm::ParameterSet::getUntrackedParameter(), inputFile, and RawFile::open().

                                                                : 
  runNumber(1), eventNumber(0) {
      
  const string & filename = pset.getUntrackedParameter<string>("fileName");

  inputFile.open(filename.c_str());
  if( inputFile.fail() ) {
    throw cms::Exception("InputFileMissing") 
      << "DTROS25FileReader: the input file: " << filename <<" is not present";
  }
}

DTROS25FileReader::~DTROS25FileReader ( )

virtual

Destructor.

Definition at line 45 of file DTROS25FileReader.cc.

References RawFile::close(), and inputFile.

                                     {
  inputFile.close();
}

Member Function Documentation

bool DTROS25FileReader::checkEndOfFile ( )

virtual

Definition at line 162 of file DTROS25FileReader.cc.

References RawFile::eof(), and inputFile.

                                      {

  bool retval=false;
  if ( inputFile.eof() ) retval=true;
  return retval;

}

int DTROS25FileReader::fillRawData ( edm::EventID &  eID, edm::Timestamp &  tstamp, FEDRawDataCollection *&  data  )

virtual

Generate and fill FED raw data for a full event.

Implements DaqBaseReader.

Definition at line 50 of file DTROS25FileReader.cc.

References filterCSVwithJSON::copy, gather_cfg::cout, FEDRawData::data(), data, eventNumber, FEDRawDataCollection::FEDData(), i, inputFile, isHeader(), isTrailer(), FEDNumbering::MINDTFEDID, RawFile::read(), FEDRawData::resize(), rosWordLenght, runNumber, and swap().

                                               {
  data = new FEDRawDataCollection();

  vector<uint32_t> eventData;
  size_t estimatedEventDimension = 102400; // dimensione hardcoded
  eventData.reserve(estimatedEventDimension); 
  uint32_t word = 0;
  

  try {   

    bool marked = false;

    // getting the data word by word from the file
    // do it until you get the ROS25 trailer
    while ( !isTrailer(word) ) { 
      
      // get the first word
      int nread = inputFile.read(dataPointer<uint32_t>( &word ), rosWordLenght);
      
      // WARNING!!! ||swapping it|| (Check whether it is necessary) 
      swap(word);

      if ( nread<=0 ) throw 1;

      // get the ROS25 header
      if (isHeader(word)) marked=true;

      // from now on fill the eventData with the ROS data
      if (marked) {
    eventData.push_back(word);

      }
    } 

    // next event reading will start with meaningless trailer+header from DTLocalDAQ
    // those will be skipped automatically when seeking for the ROS25 header

    //if (eventData.size() > estimatedEventDimension) throw 2;
    
    // Setting the Event ID
    eID = EventID( runNumber, 1U, eventNumber);

    // eventDataSize = (Number Of Words)* (Word Size)
    int eventDataSize = eventData.size()*rosWordLenght;
    // It has to be a multiple of 8 bytes. if not, adjust the size of the FED payload
    int adjustment = (eventDataSize/4)%2 == 1 ? 4 : 0; 

    // The FED ID is always the first in the DT range
    FEDRawData& fedRawData = data->FEDData( FEDNumbering::MINDTFEDID );
    fedRawData.resize(eventDataSize+adjustment);
    
    copy(reinterpret_cast<unsigned char*>(&eventData[0]),
     reinterpret_cast<unsigned char*>(&eventData[0]) + eventDataSize, fedRawData.data());

    return true;
  }

  catch( int i ) {

    if ( i == 1 ){
      cout<<"[DTROS25FileReader]: ERROR! failed to get the trailer"<<endl;
      delete data; data=0;
      return false;
    }    
    else {
      cout<<"[DTROS25FileReader]:"
      <<" ERROR! ROS data exceeding estimated event dimension. Event size = "
      <<eventData.size()<<endl;
      delete data; data=0;
      return false;
    }
    
  }

}

bool DTROS25FileReader::isHeader

(

uint32_t

word

)

check for a 32 bits word to be a ROS25 header

Definition at line 139 of file DTROS25FileReader.cc.

References eventNumber.

Referenced by fillRawData().

                                              {

  bool it_is = false;
  if ( (word >> 24 ) == 31 ) {
    it_is = true;
    ++eventNumber;
  }
 
  return it_is;
}

bool DTROS25FileReader::isTrailer

(

uint32_t

word

)

check for a 32 bits word to be a ROS25 trailer

Definition at line 151 of file DTROS25FileReader.cc.

Referenced by fillRawData().

                                               {
 
  bool it_is = false;
  if ( (word >> 24 ) == 63 ) {
    it_is = true;
  }
 
  return it_is;
}

void DTROS25FileReader::swap

(

uint32_t &

word

)

swapping the lsBits with the msBits

Definition at line 129 of file DTROS25FileReader.cc.

References twoNibble::lsBits, and twoNibble::msBits.

Referenced by fillRawData().

                                            {
  
  twoNibble* newWorld = reinterpret_cast<twoNibble*>(&word);

  uint16_t msBits_tmp = newWorld->msBits;
  newWorld->msBits = newWorld->lsBits;
  newWorld->lsBits = msBits_tmp;
}

Member Data Documentation

edm::EventNumber_t DTROS25FileReader::eventNumber

private

Definition at line 52 of file DTROS25FileReader.h.

Referenced by fillRawData(), isHeader(), and Vispa.Plugins.EdmBrowser.EdmDataAccessor.EdmDataAccessor::setFilterBranches().

RawFile DTROS25FileReader::inputFile

private

Definition at line 49 of file DTROS25FileReader.h.

Referenced by checkEndOfFile(), DTROS25FileReader(), fillRawData(), and ~DTROS25FileReader().

const int DTROS25FileReader::rosWordLenght = 4

staticprivate

Definition at line 54 of file DTROS25FileReader.h.

Referenced by fillRawData().

edm::RunNumber_t DTROS25FileReader::runNumber

private

Definition at line 51 of file DTROS25FileReader.h.

Referenced by fillRawData().