class Decoder::THaEpics


   THaEpics
   Hall A EPICS data.

   EPICS data come in two forms
     (tag, value)   e.g. (IPM1H04B.XPOS,  0.204)
   and
     (tag, value, units)  e.g. (HELG0TSETTLEs, 500, usec)

   All data are received as characters and are parsed.
   'tags' remain characters, 'values' are either character
   or double, and 'units' are characters.
   Data are stored in an STL map and retrievable by
   'tag' (e.g. IPM1H04B.XPOS) and by proximity to
   a physics event number (closest one is picked).

   Replaces THaEpicsStack (obsolete)

   author  Robert Michaels (rom@jlab.org)

Function Members (Methods)

public:

virtual	~THaEpics()
static TClass*	Class()
Double_t	GetData(const char* tag, int event = 0) const
string	GetString(const char* tag, int event = 0) const
Double_t	GetTimeStamp(const char* tag, int event = 0) const
virtual TClass*	IsA() const
Bool_t	IsLoaded(const char* tag) const
int	LoadData(const UInt_t* evbuffer, int event = 0)
Decoder::THaEpics&	operator=(const Decoder::THaEpics&)
void	Print()
virtual void	ShowMembers(TMemberInspector&)
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
Decoder::THaEpics	THaEpics()
Decoder::THaEpics	THaEpics(const Decoder::THaEpics&)

private:

Int_t	FindEvent(const vector<Decoder::EpicsChan,allocator<Decoder::EpicsChan> >& ep, int event) const
vector<Decoder::EpicsChan,allocator<Decoder::EpicsChan> >	GetChan(const char* tag) const

Data Members

private:

map<std::string,std::vector<EpicsChan> >	epicsData

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

void Print()

Bool_t IsLoaded(const char* tag) const

Double_t GetData(const char* tag, int event = 0) const

string GetString(const char* tag, int event = 0) const

Double_t GetTimeStamp(const char* tag, int event = 0) const

vector<EpicsChan> GetChan(const char* tag) const

 Return the vector of Epics data for 'tag'
 where 'tag' is the name of the Epics variable.

Int_t FindEvent(const vector<Decoder::EpicsChan,allocator<Decoder::EpicsChan> >& ep, int event) const

 Return the index in the vector of Epics data
 nearest in event number to event 'event'.

int LoadData(const UInt_t* evbuffer, int event = 0)

 load data from the event buffer 'evbuffer'
 for event nearest 'evnum'.

THaEpics()

{ }

virtual ~THaEpics()

 Get tagged value nearest 'event'

{}