1 #ifndef ALIMULTIEVENTINPUTHANDLER_H
2 #define ALIMULTIEVENTINPUTHANDLER_H
3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //----------------------------------------------------------------------------
9 // Multi VEvent Input Handler realisation of the AliVEventHandler interface.
10 // This class handles multiple events for mixing.
11 // Author: Andreas Morsch, CERN
12 //----------------------------------------------------------------------------
14 #include "AliInputEventHandler.h"
18 class AliMultiEventInputHandler : public AliInputEventHandler {
21 AliMultiEventInputHandler();
22 AliMultiEventInputHandler(Int_t size, Int_t format = 1);
23 AliMultiEventInputHandler(const char* name, const char* title, Int_t size, Int_t format = 1);
24 virtual ~AliMultiEventInputHandler();
25 void SetBufferSize(Int_t size) {fBufferSize = size;}
26 void SetEventPool(AliVEventPool* pool) {fEventPool = pool;}
27 Int_t GetBufferSize() const {return fBufferSize;}
28 Int_t GetNBuffered() const {return fNBuffered;}
29 Bool_t IsBufferReady() const {return (fNBuffered >= (fBufferSize -1));}
30 Bool_t IsFreshBuffer() const {return (fIndex == (fBufferSize - 1));}
31 AliVEventPool *GetEventPool() const {return fEventPool;}
32 virtual AliVEvent *GetEvent() const {return GetLatestEvent();}
33 virtual AliVEvent *GetEvent(Int_t iev) const;
34 AliVEvent *GetLatestEvent() const {return fEventBuffer[fIndex];}
35 Int_t GetFormat() { return fFormat ;}
36 void EventSkipped() {fEventSkipped = kTRUE;}
38 virtual Bool_t Init(Option_t* /*opt*/) {return kTRUE;}
39 virtual Bool_t Init(TTree* tree, Option_t* /*opt*/);
40 virtual Bool_t FinishEvent();
41 virtual Bool_t BeginEvent(Long64_t /*entry*/);
42 virtual Bool_t Notify() { return AliInputEventHandler::Notify();}
43 virtual Bool_t Notify(const char */*path*/);
45 AliMultiEventInputHandler(const AliMultiEventInputHandler& handler);
46 AliMultiEventInputHandler& operator=(const AliMultiEventInputHandler& handler);
48 Int_t fBufferSize; // Size of the buffer
49 Int_t fFormat; // 0: ESD 1: AOD
50 Int_t fNBuffered; // Number of events actually buffered
51 Int_t fIndex; // Pointer to most recent event
52 Int_t fCurrentBin; // Current bin from the pool
53 Int_t fCurrentEvt; // Current event
54 Bool_t fInit; // Current event
55 AliVEventPool* fEventPool; // Pointer to the pool
56 AliVEvent** fEventBuffer; //! The event buffer
57 Bool_t fEventSkipped; // User requires event to be skip
58 ClassDef(AliMultiEventInputHandler, 1);