#include <CSCChamberDataItr.h>

Public Member Functions
	CSCChamberDataItr (const char *buf)
bool	next ()
const CSCEventData &	operator* ()
	~CSCChamberDataItr ()
Private Member Functions
void	constructFromDCC (const CSCDCCEventData &)
	for DCC data.
void	constructFromDDU (const CSCDDUEventData &)
	for DDU-only data
void	initDDU ()
	sets theDDU & theNumberOfCSCs
Private Attributes
unsigned	theCurrentDDU
const CSCDCCEventData *	theDCCData
	make a new vector of DDUs (length 1).
CSCDDUDataItr *	theDDUItr
unsigned	theNumberOfDDUs

Detailed Description

Definition at line 15 of file CSCChamberDataItr.h.

Constructor & Destructor Documentation

CSCChamberDataItr::CSCChamberDataItr ( const char * buf )

construct from data buffer. Will figure out whether it's DCC or DDU

Definition at line 4 of file CSCChamberDataItr.cc.

References CSCDCCHeader::check(), CSCDCCEventData::dduData(), theCurrentDDU, theDCCData, theDDUItr, and theNumberOfDDUs.

                                                     :
  theDCCData(0),
  theCurrentDDU(0)
{
  // first try if it's DCC data.
  const CSCDCCHeader * dccHeader 
    = reinterpret_cast<const CSCDCCHeader *>(buf);
  if(dccHeader->check())
    {
      theDCCData = new CSCDCCEventData((unsigned short *)buf);
      theNumberOfDDUs = theDCCData->dduData().size();
      theDDUItr = new CSCDDUDataItr( &(theDCCData->dduData()[theCurrentDDU]) );
    }
  else 
    {
      // it's DDU data, with only one DDU
      theDDUItr = new CSCDDUDataItr(buf);
      theNumberOfDDUs = 1;
    }
}

CSCChamberDataItr::~CSCChamberDataItr ( )

Definition at line 26 of file CSCChamberDataItr.cc.

References theDCCData.

{
   // safe, even if it's zero
   delete theDCCData;
}

Member Function Documentation

void CSCChamberDataItr::constructFromDCC ( const CSCDCCEventData & ) [private]

for DCC data.

void CSCChamberDataItr::constructFromDDU ( const CSCDDUEventData & ) [private]

for DDU-only data

void CSCChamberDataItr::initDDU ( ) [private]

sets theDDU & theNumberOfCSCs

bool CSCChamberDataItr::next ( void )

Definition at line 33 of file CSCChamberDataItr.cc.

References CSCDCCEventData::dduData(), CSCDDUDataItr::next(), query::result, theCurrentDDU, theDCCData, theDDUItr, and theNumberOfDDUs.

{
  bool result = true;
  if(!theDDUItr->next()) 
    {
      if(++theCurrentDDU >= theNumberOfDDUs)
        {
          result = false;
        }
      else
        {
          // the next DDU exists, so initialize an itr
          assert(theDCCData != 0);
          delete theDDUItr;
          theDDUItr = new CSCDDUDataItr( &(theDCCData->dduData()[theCurrentDDU]) );
        }
    }
  return result;
}