Digitizer: improved access to CDB for multievent jobs. Memory leak fixed in AliITSDet...
[u/mrichter/AliRoot.git] / RAW / AliAltroBuffer.h
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3ea47630 1/* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
2 * See cxx source for full Copyright notice */
3
4/////////////////////////////////////////////////////
5// Class used for read-write the ALTRO data format //
6/////////////////////////////////////////////////////
7
8/*This class is an interface between the altro format file and the
9 user, and can be used in write or read mode
10 In the write mode a new altro file is created and filled using the method FillBuffer().
11 The name of the file is specified as parameter in the constructor as well as the type mode.
12 In the Read mode the specified file is open and the values can be read using the
13 methods GetNext() and GetNextBackWord().
14 The first method is used to read the file forward while the second is used to read backward
15*/
16
17#ifndef AliALTROBUFFER_H
18#define AliALTROBUFFER_H
19
20#include <TObject.h>
21#ifdef __CINT__
22class fstream;
23#else
24#include "Riostream.h"
25#endif
26
5802cf2d 27class AliAltroMapping;
3ea47630 28
29class AliAltroBuffer: public TObject {
30 public:
5802cf2d 31 AliAltroBuffer(const char* fileName, Int_t flag, const AliAltroMapping *mapping = NULL);
3ea47630 32 virtual ~AliAltroBuffer();
33
34 void FillBuffer(Int_t val);
35 //this method stores a word into the buffer
36 Int_t GetFreeCellNumber()const {return fFreeCellBuffer;}
37 //this method returns the number of free cells of the internal buffer
38 Int_t GetNextBackWord();
39 //this method returns the next word of 10 bit (reading the file backward) if it exists -1 otherwise
40 Int_t GetNext();
41 //this method returns the next word of 10 bit (reading the file forward) if it exists -1 otherwise
42
43 void WriteTrailer(Int_t wordsNumber, Int_t padNumber,
44 Int_t rowNumber, Int_t secNumber);
45 //this method is used to write the trailer
20daa34d 46 void WriteTrailer(Int_t wordsNumber, Short_t hwAdress);
47 //this method is used to write the trailer
5802cf2d 48 void WriteDummyTrailer(Int_t wordsNumber, Int_t padNumber,
49 Int_t rowNumber, Int_t secNumber);
50 //this method is used to write a dummy trailer
3ea47630 51 Bool_t ReadTrailer(Int_t& wordsNumber, Int_t& padNumber,
52 Int_t& rowNumber, Int_t &secNumber);
53 //this method is used to read the trailer when the file is read forward
20daa34d 54 Bool_t ReadTrailer(Int_t& wordsNumber, Short_t& hwAdress);
55 //this method is used to read the trailer when the file is read forward
16e29964 56 Bool_t ReadDummyTrailer(Int_t& wordsNumber, Int_t& padNumber,
57 Int_t& rowNumber, Int_t &secNumber);
58 //this method is used to read the trailer when the file is read forward
3ea47630 59 Bool_t ReadTrailerBackward(Int_t& wordsNumber, Int_t& padNumber,
60 Int_t& rowNumber, Int_t& secNumber);
61 //this method is used to read the trailer when the file is read backward
20daa34d 62 Bool_t ReadTrailerBackward(Int_t& wordsNumber, Short_t& hwAdress);
63 //this method is used to read the trailer when the file is read backward
64 Bool_t ReadDummyTrailerBackward(Int_t& wordsNumber, Int_t& padNumber,
65 Int_t& rowNumber, Int_t& secNumber);
66 //this method is used to read the trailer when the file is read backward
3ea47630 67
68 void WriteChannel(Int_t padNumber, Int_t rowNumber, Int_t secNumber,
69 Int_t nTimeBins, const Int_t* adcValues,
70 Int_t threshold = 0);
71 //this method is used to write all ADC values and the trailer of a channel
20daa34d 72 void ReadChannel(Int_t padNumber, Int_t rowNumber, Int_t secNumber,
73 Int_t& nTimeBins, Int_t* adcValues);
74 //this method is used to read all ADC values and the trailer of a channel
3ea47630 75
76 void WriteDataHeader(Bool_t dummy, Bool_t compressed);
77 //this method is used to write the data header
b0aef454 78 Bool_t ReadDataHeader();
79 //this method is used to read the data header
3ea47630 80 void SetVerbose(Int_t val) {fVerbose = val;}
81 //this method is used to set the verbose level
82 //level 0 no output messages
83 //level !=0 some messages are displayed during the run
84 void Flush();
85 //this method is used to fill the buffer with 2AA hexadecimal value and save it into the output file
86 Int_t GetFillWordsNum() const {return fEndingFillWords;}
87
16e29964 88 void SetMapping(AliAltroMapping *mapping) { fMapping = mapping; }
89
20daa34d 90 protected:
3ea47630 91 AliAltroBuffer(const AliAltroBuffer& source);
92 AliAltroBuffer& operator = (const AliAltroBuffer& source);
93
94 UInt_t fBuffer[5]; //Buffer dimension is 32*5=160 bits and it contains 16 values
95 //A value is never splitted in two Buffer
96
97
98 Int_t fShift; //This variable contains the number of free bits in the current cell of
99 //the Buffer after that the value Val is been inserted.
100 //size of Int_t is 32 bit that is the same size of a cell of Buffer so
101 //the shift operation are performed only on value Val.
102 Int_t fCurrentCell; //This variable contains the cell number of the cell currently used
103 Int_t fFreeCellBuffer;//number of free cells of the buffer
104 Int_t fFlag; //0 read 1 write
105 Int_t fVerbose; //verbose level
106 fstream* fFile; //logical name of the I/O file
107 Int_t fMaskBackward; //bit mask for backward reading of a file
108 UInt_t fFilePosition;//'pointer' to the actual position in the file
109 UInt_t fFileEnd; //position of the last element of the file (File dimension)
110 UInt_t fDataHeaderPos;//Data header position
111 Int_t fEndingFillWords;//Few words at the end of the stream
112
5802cf2d 113 // Now the parameters for the mapping
114 const AliAltroMapping* fMapping; // Pointer to the mapping handler
115
3ea47630 116 ClassDef(AliAltroBuffer,0) // Interface to the Altro format
117};
118
119#endif