Added run number to frame
[u/mrichter/AliRoot.git] / EVE / EveHLT / AliEveEventBuffer.h
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30e7579c 1//-*- Mode: C++ -*-
2
3// $Id$
4
5#ifndef ALIEVEEVENTBUFFER_H
6#define ALIEVEEVENTBUFFER_H
7
8/* This file is property of and copyright by the ALICE HLT Project *
9 * ALICE Experiment at CERN, All rights reserved. *
10 * See cxx source for full Copyright notice
11 */
12
13/** @file AliEveEventBuffer.h
14 @author Svein Lindal
15 @date
16 @brief Manager for HOMER in aliroot
17*/
18
19
20class TObjArray;
21class TObject;
22class TTimer;
23class TThread;
24
25#include "TTimer.h"
26
27class AliEveEventBuffer : public TObject{
28
29public:
30
31 /** default constructor */
32 AliEveEventBuffer();
33
34 /** destructor */
35 virtual ~AliEveEventBuffer();
36
37 void SetBufferSize(Int_t bs) { fBufferSize = bs;}
38 void SetBusy(Bool_t busy) { fBusy = busy;}
239fdf4e 39 Bool_t GetBusy() { return fBusy;}
40
30e7579c 41 //Navigate the event buffer
42 // TObject * NavigateFwd();
43 // TObject * NavigateBack();
44 TObject * NextEvent();
45 TObject * Back();
46 TObject * Fwd();
47
48 void StartBufferMonitor();
49 void StopBufferMonitor();
50 //Needed for Homer buffer
51 virtual void ConnectToSource() = 0;
52 //Check if more events are needed in buffer
53 void MonitorBuffer();
54
55 static void * BufferThread(void * buffer);
56 virtual void WriteToFile() {//Do nothing
57 ;
58 }
59
239fdf4e 60 void CreateBufferThread();
61
8676f4b1 62 ULong64_t GetEventId() const { return fEventId[fBIndex[kCurrent]]; }
239fdf4e 63
30e7579c 64protected:
65
66 enum fBufferIndex {
67 kCurrent,
68 kLast,
69 kTop,
70 kSize
71 };
72
73
74 Int_t fBufferSize;
75 Int_t fPreBuffer;
76 Bool_t fBusy;
77
78 //TClonesArray containing the stored events
79 TObjArray * fEventBuffer;
80
81 //Pointer to current event
82 TObject * fCurrentEvent;
83
84 //Event buffer indexes
85 Int_t fBIndex[kSize];
86
87
88 //Add event to buffer
89 virtual void AddToBuffer(TObject * event);
30e7579c 90 virtual TObject * GetEventFromSource() = 0;
8676f4b1 91 virtual ULong64_t GetEventIdFromSource() { return 0;}
92
30e7579c 93
94 void FetchEvent();
95
96
97 //Calculate buffer index stuff
98 Int_t CalculateDifference(Int_t top, Int_t low);
99 Int_t CalculatePrevious(Int_t current);
100 Int_t CalculateNext(Int_t current);
101
8676f4b1 102 void SetEventId(ULong64_t eventId) { fEventId[fBIndex[kCurrent]] = eventId;}
30e7579c 103
b088c0a1 104 void SetBufferMonStarted(Bool_t started) {fBufferMonStarted = started;}
105 Bool_t GetBufferMonStarted () const { return fBufferMonStarted;}
30e7579c 106
107private:
108
109 /** copy constructor prohibited */
110 AliEveEventBuffer(const AliEveEventBuffer&);
111
112 /** assignment operator prohibited */
113 AliEveEventBuffer& operator=(const AliEveEventBuffer&);
114
239fdf4e 115
30e7579c 116
117 TObject * GetNextUnSeen();
118
119 void PrintIndeces();
120 void PrintBuffer();
121
122 TTimer * fTimer;
123
30e7579c 124 //Current event id
8676f4b1 125 ULong64_t * fEventId;
30e7579c 126
b088c0a1 127 Bool_t fBufferMonStarted;
128
129
30e7579c 130
131 ClassDef(AliEveEventBuffer, 0); // Manage connections to HLT data-sources.
132};
133
134#endif