/data/refman/pasoursint/CMSSW_5_3_1/src/EventFilter/ShmBuffer/bin/FUShmServer.cc

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//
// FUShmServer
// -----------
//
//            17/11/2006 Philipp Schieferdecker <philipp.schieferdecker@cern.ch>


#include "EventFilter/ShmBuffer/bin/FUShmServer.h"


#include <iostream>


using namespace std;
using namespace evf;


// construction/destruction

//______________________________________________________________________________
FUShmServer::FUShmServer(FUShmBuffer* buffer)
  : buffer_(buffer)
{
  
}


//______________________________________________________________________________
FUShmServer::~FUShmServer()
{
  
}


// implementation of member functions

//______________________________________________________________________________
unsigned int FUShmServer::writeNext(unsigned char *data,
                                    unsigned int   nFed,
                                    unsigned int  *fedSize)
{
  FUShmRawCell* cell =buffer_->rawCellToWrite();
  buffer_->printEvtState(cell->index());
  
  // write data
  cell->clear();
  unsigned int dataSize(0);
  for (unsigned int i=0;i<nFed;i++) dataSize+=fedSize[i];
  unsigned int   iCell         =cell->index();
  unsigned char *cellBufferAddr=cell->writeData(data,dataSize);
  
  if (0!=cellBufferAddr) {
    // mark feds
    unsigned int fedOffset(0);
    for (unsigned int i=0;i<nFed;i++) {
      unsigned char* fedAddr=cellBufferAddr+fedOffset;
      cell->markFed(i,fedSize[i],fedAddr);
      fedOffset+=fedSize[i];
    }
    
    buffer_->finishWritingRawCell(cell);
  }
  
  return iCell;
}