class THaCodaFile: public THaCodaData


  THaCodaFile
  File of CODA data

  CODA data file, and facilities to open, close, read,
  write, filter CODA data to disk files, etc.
  A lot of this relies on the "evio.cpp" code from
  DAQ group which is a C++ rendition of evio.c that
  we have used for years, but here are some useful
  added features.

  author  Robert Michaels (rom@jlab.org)

Function Members (Methods)

public:

	THaCodaFile()
	THaCodaFile(const char* filename, const char* rw = "r")
virtual	~THaCodaFile()
void	addEvListFilt(int event_to_filt)
void	addEvTypeFilt(int evtype_to_filt)
static TClass*	Class()
virtual int	codaClose()
virtual int	codaOpen(const char* filename, int mode = 1)
virtual int	codaOpen(const char* filename, const char* rw, int mode = 1)
virtual int	codaRead()
int	codaWrite(const int* evbuffer)
int	filterToFile(const char* output_file)
virtual int	THaCodaData::getBuffSize() const
virtual int*	getEvBuffer()
virtual TClass*	IsA() const
virtual bool	isOpen() const
void	setMaxEvFilt(int max_event)
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)

private:

	THaCodaFile(const THaCodaFile& fn)
void	init(const char* fname = "")
void	initFilter()
THaCodaFile&	operator=(const THaCodaFile& fn)
void	staterr(const char* tried_to, int status)

Data Members

protected:

int*	THaCodaData::evbuffer	Raw data
TString	THaCodaData::filename

private:

TArrayI	evlist
TArrayI	evtypes
int	ffirst
void*	handle
int	max_to_filt
int	maxflist
int	maxftype

Class Charts

Inheritance Chart:

THaCodaData

←

THaCodaFile

Function documentation

THaCodaFile(const THaCodaFile& fn)

 Default constructor. Do nothing (must open file separately).

THaCodaFile(const char* filename, const char* rw = "r")

 Standard constructor

~THaCodaFile()

Destructor

int codaOpen(const char* filename, int mode = 1)

int codaOpen(const char* filename, const char* rw, int mode = 1)

int codaClose()

 Close the file. Do nothing if file not opened.

int codaRead()

 codaRead: Reads data from file, stored in evbuffer.
 Must be called once per event.

int codaWrite(const int* evbuffer)

 codaWrite: Writes data from 'evbuf' to file

int* getEvBuffer()

 Here's how to get raw event buffer, evbuffer, after codaRead call

bool isOpen()

int filterToFile(const char* output_file)

 A call to filterToFile filters from present file to output_file
 using filter criteria defined by evtypes, evlist, and max_to_filt
 which are loaded by public methods of this class.  If no conditions
 were loaded, it makes a copy of the input file (i.e. no filtering).

void addEvTypeFilt(int evtype_to_filt)

 Function to set up filtering by event type

void addEvListFilt(int event_to_filt)

 Function to set up filtering by list of event numbers

void setMaxEvFilt(int max_event)

 Function to set up the max number of events to filter

void staterr(const char* tried_to, int status)

 staterr gives the non-expert user a reasonable clue
 of what the status returns from evio mean.
 Note: severe errors can cause job to exit(0)
 and the user has to pay attention to why.

void init(const char* fname = "")

void initFilter()

THaCodaFile(const THaCodaFile& fn)

THaCodaFile& operator=(const THaCodaFile& fn)

Last change: Sat Nov 7 21:26:43 2009
Last generated: 2009-11-07 21:26

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