ADC 400F Manual descarregar pdf (Página 64)

Chapter 5. Complete program listings.

CTreeVariable& w2;

CTreeVariableArray& unused;

} MyParameters;

// Similarly, having declared the structure, we must define

// it and construct its elements

MyParameters vars = {

*(new CTreeVariable("vars.w1", 1.0, "arb/chan")),

*(new CTreeVariable("vars.w2", 1.0, "arb/chan")),

*(new CTreeVariableArray("vars.unused", 0.0, "furl/fort", 10, 0))

};

// CFixedEventUnpacker - Unpacks a fixed format event into

// a sequential set of parameters.

class CFixedEventUnpacker : public CEventProcessor

{

public:

virtual Bool_t operator()(const Address_t pEvent,

CEvent& rEvent,

CAnalyzer& rAnalyzer,

CBufferDecoder& rDecoder);

};

Bool_t

CFixedEventUnpacker::operator()(const Address_t pEvent,

CEvent& rEvent,

CAnalyzer& rAnalyzer,

CBufferDecoder& rDecoder)

{

// This sample unpacker unpacks a fixed length event which is

// preceded by a word count.

TranslatorPointer<UShort_t> p(*(rDecoder.getBufferTranslator()), pEvent);

CTclAnalyzer& rAna((CTclAnalyzer&)rAnalyzer);

UShort_t nWords = *p++;

Int_t i = 1;

// At least one member of the pipeline must tell the analyzer how

// many bytes were in the raw event so it knows where to find the

// next event.

rAna.SetEventSize(nWords*sizeof(UShort_t)); // Set event size.

nWords--; // The word count is self inclusive.

int param = 0; // No more than 10 parameters.

while(nWords && (param < 10)) { // Put parameters in the event starting at 1.

event.raw[param] = *p++;

nWords--;

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ADC 400F Manual Página 64