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FileReaderSP Class Reference

#include <IORawData/CSCTFCommissioning/src/FileReaderSP.h>

Inheritance diagram for FileReaderSP:

List of all members.

Public Member Functions
virtual void	Configure ()
virtual int	disableBlock ()
virtual int	enableBlock ()
virtual int	endBlockRead ()
	FileReaderSP ()
virtual int	readSP (unsigned short **buf, const bool debug=false)
	assumes fd_schar has been set
virtual int	reset ()
virtual	~FileReaderSP ()
Protected Member Functions
virtual int	chunkSize ()
	How many bytes to read at a time.
int	fillMiniBuf ()
bool	isHeader ()
Protected Attributes
unsigned short	key [3]
queue< unsigned short >	miniBuf
int	pointer
unsigned short	refBuf [MAXBUFSIZE]
Static Protected Attributes
static const int	MAXBUFSIZE = 6

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Detailed Description

Definition at line 8 of file FileReaderSP.h.

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Constructor & Destructor Documentation

FileReaderSP::FileReaderSP

(

)

Definition at line 10 of file FileReaderSP.cc.

References key, and pointer.

{
  pointer = 0;
  key[0] = 0xf000;
  key[1] = 0x7fff;
  key[2] = 0x7fff;
}

virtual FileReaderSP::~FileReaderSP

(

)

[inline, virtual]

Definition at line 12 of file FileReaderSP.h.

{}

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Member Function Documentation

int FileReaderSP::chunkSize

(

)

[protected, virtual]

How many bytes to read at a time.

Implements SPReader.

Definition at line 22 of file FileReaderSP.cc.

                            {
  /*int cnt[2];
  read(fd_schar,cnt,4);
  return cnt[0];*/
  return 0;
}

void FileReaderSP::Configure

(

)

[virtual]

Reimplemented from SPReader.

Definition at line 18 of file FileReaderSP.cc.

                             {
}

virtual int FileReaderSP::disableBlock

(

)

[inline, virtual]

Implements SPReader.

Definition at line 17 of file FileReaderSP.h.

{return 0;}

virtual int FileReaderSP::enableBlock

(

)

[inline, virtual]

Implements SPReader.

Definition at line 16 of file FileReaderSP.h.

{return 0;}

virtual int FileReaderSP::endBlockRead

(

)

[inline, virtual]

Implements SPReader.

Definition at line 18 of file FileReaderSP.h.

{return 0;}

int FileReaderSP::fillMiniBuf

(

)

[protected]

Definition at line 92 of file FileReaderSP.cc.

References count, SPReader::fd_schar, miniBuf, SiStripLorentzAngle_cfi::read, and pyDBSRunClass::temp.

Referenced by readSP().

{
  int count=0;
  unsigned short temp[1];
  while(miniBuf.size() < 6)
    {
      if(read(fd_schar,temp,2)==2)
        {
          miniBuf.push(temp[0]);
          count++;
        }
      else
        {
          return -1;
        }
    }
  return count;
}

bool FileReaderSP::isHeader

(

)

[protected]

Definition at line 111 of file FileReaderSP.cc.

References edm::holder, i, key, MAXBUFSIZE, miniBuf, and refBuf.

Referenced by readSP().

{
  int holder = 0;
  for(int i=0;i<MAXBUFSIZE;i++)
    {
      holder = miniBuf.front();
      refBuf[i] = holder;
      miniBuf.pop();
      miniBuf.push(refBuf[i]);
    }    

  return ((refBuf[0]&key[0])==key[0] && (refBuf[1]&key[0])==key[0] && (refBuf[2]&key[0])==key[0]
          && (refBuf[3]&key[0])==key[0] && (refBuf[4]|key[1])==key[1] && (refBuf[5]|key[2])==key[2]);
}

int FileReaderSP::readSP	(	unsigned short **	buf,
		const bool	debug = false
	)			[virtual]

assumes fd_schar has been set

Implements SPReader.

Definition at line 30 of file FileReaderSP.cc.

References a, counter(), GenMuonPlsPt100GeV_cfg::cout, event(), SPReader::fd_schar, fillMiniBuf(), edm::holder, isHeader(), prof2calltree::last, miniBuf, pointer, SiStripLorentzAngle_cfi::read, and tmp.

                                                               {
 
  int counter=0;
  unsigned short tmp[1];
  unsigned short holder =0;
  unsigned short a[6000];
  int bytes_read=0;

  do{
    if(pointer == 0)
      {
        bytes_read = read(fd_schar,tmp,2);  //read only 1 line == 2 bytes of data
        if(bytes_read != 2)
          {
            cout<<"FileReaderSP :: Reached end of file!!!\n";
            return 0;
          }
        a[counter]=tmp[0];
      }
    else
      {
        holder = miniBuf.front();
        a[counter] = holder;
        miniBuf.pop();
        holder = 0;
      }

    counter++;
    if((bytes_read = fillMiniBuf())== -1)
      {
        while(miniBuf.size()>0)
          {
            holder = miniBuf.front();
            a[counter] = holder;
            miniBuf.pop();
            holder = 0;
            counter++;    
          }
        void * last = malloc((counter-1)*sizeof(unsigned short));
        memset(last,0,(counter-1)*sizeof(unsigned short));
        memcpy(last,a,(counter-1)*sizeof(unsigned short));
        *buf=reinterpret_cast<unsigned short*>(last);
        pointer = 0;
        return (counter-1)*sizeof(unsigned short);
      }
    pointer += bytes_read;

  }while(!isHeader());

  void * event = malloc(counter*sizeof(unsigned short));
  memset(event,0,counter*sizeof(unsigned short));
  memcpy(event,a,counter*sizeof(unsigned short));
  *buf=reinterpret_cast<unsigned short*>(event);

  
  
  //printf("\n\n\n  returning %d: \n\n\n",(count*8));

  return counter*sizeof(unsigned short);  //Total number of bytes read

} //readSP

virtual int FileReaderSP::reset

(

void

)

[inline, virtual]

Implements SPReader.

Definition at line 15 of file FileReaderSP.h.

{return 0;}

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Member Data Documentation

unsigned short FileReaderSP::key[3] [protected]

Definition at line 29 of file FileReaderSP.h.

Referenced by FileReaderSP(), and isHeader().

const int FileReaderSP::MAXBUFSIZE = 6 [static, protected]

Definition at line 26 of file FileReaderSP.h.

Referenced by isHeader().

queue<unsigned short> FileReaderSP::miniBuf [protected]

Definition at line 30 of file FileReaderSP.h.

Referenced by fillMiniBuf(), isHeader(), and readSP().

int FileReaderSP::pointer [protected]

Definition at line 27 of file FileReaderSP.h.

Referenced by FileReaderSP(), and readSP().

unsigned short FileReaderSP::refBuf[MAXBUFSIZE] [protected]

Definition at line 28 of file FileReaderSP.h.

Referenced by isHeader().

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The documentation for this class was generated from the following files:

• IORawData/CSCTFCommissioning/src/FileReaderSP.h
• IORawData/CSCTFCommissioning/src/FileReaderSP.cc

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