In This Package:

RRawTree Class Reference

#include <RRawTree.h>

List of all members.

Public Member Functions
	RRawTree ()
	~RRawTree ()
int	open (const char *filename)
	1. open a new file
int	fill (Int32 *buffer, Int32 size)
	2. fill an entry
int	close ()
	3. close the file
Private Attributes
TFile *	m_file
TTree *	m_tree
Int32	m_buffer [50000]
Int32	m_size

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Detailed Description

Definition at line 17 of file RRawTree.h.

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Constructor & Destructor Documentation

RRawTree::RRawTree

(

)

Definition at line 7 of file RRawTree.cc.

  : m_file(0)
  , m_tree(0)
  , m_size(0)
{
  if( sizeof(Int32) != 4 ) {
    cout<<"Error: Need a 32-bits type to hold each line of raw data"<<endl;
  }
}

RRawTree::~RRawTree

(

)

Definition at line 17 of file RRawTree.cc.

{
}

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Member Function Documentation

int RRawTree::open

(

const char *

filename

)

1. open a new file

open a new file

Definition at line 23 of file RRawTree.cc.

{
  m_file = TFile::Open(filename,"recreate");
  if (!m_file) {
    return 0;
  }
  if (m_file->IsZombie()) {
    delete m_file;
    m_file = 0;
    return 0;
  }
  m_tree = new TTree("RRawTree","Root Raw Tree");

  m_tree->Branch("size",&m_size,"size/I");
  m_tree->Branch("buffer",m_buffer,"buffer[size]/I");

  return 1;
}

int RRawTree::fill	(	Int32 *	buffer,
		Int32	size
	)

2. fill an entry

Definition at line 43 of file RRawTree.cc.

{
  memcpy(m_buffer, buffer, size*4);
  m_size=size;

  //  cout<<m_buffer<<" "<<m_size<<endl;
  m_tree->Fill();

  return 1;
}

int RRawTree::close

(

)

3. close the file

Definition at line 55 of file RRawTree.cc.

{
  m_file->Write();
  m_file->Close();

  return 1;
}

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Member Data Documentation

TFile* RRawTree::m_file [private]

Definition at line 33 of file RRawTree.h.

TTree* RRawTree::m_tree [private]

Definition at line 34 of file RRawTree.h.

Int32 RRawTree::m_buffer[50000] [private]

Definition at line 36 of file RRawTree.h.

Int32 RRawTree::m_size [private]

Definition at line 37 of file RRawTree.h.

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

• /home/dayabay/installs/trunk_2011_04_11_opt/NuWa-trunk/dybgaudi/RawData/RootRawWriter/RootRawWriter/RRawTree.h
• /home/dayabay/installs/trunk_2011_04_11_opt/NuWa-trunk/dybgaudi/RawData/RootRawWriter/src/RRawTree.cc

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