Line data Source code
1 : /**************************************************************************
2 : * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 : * *
4 : * Author: The ALICE Off-line Project. *
5 : * Contributors are mentioned in the code where appropriate. *
6 : * *
7 : * Permission to use, copy, modify and distribute this software and its *
8 : * documentation strictly for non-commercial purposes is hereby granted *
9 : * without fee, provided that the above copyright notice appears in all *
10 : * copies and that both the copyright notice and this permission notice *
11 : * appear in the supporting documentation. The authors make no claims *
12 : * about the suitability of this software for any purpose. It is *
13 : * provided "as is" without express or implied warranty. *
14 : **************************************************************************/
15 :
16 : ///////////////////////////////////////////////////////////////////////////////
17 : // //
18 : // Reads ACORDE DDL raw data from raw data stream //
19 : // //
20 : ///////////////////////////////////////////////////////////////////////////////
21 :
22 : #include "AliACORDERawStream.h"
23 : #include "AliRawReader.h"
24 : #include "AliLog.h"
25 : #include "AliDAQ.h"
26 : #include "AliRawReaderRoot.h"
27 :
28 12 : ClassImp(AliACORDERawStream)
29 :
30 : //_____________________________________________________________________________
31 4 : AliACORDERawStream::AliACORDERawStream(AliRawReader* rawReader) :
32 4 : fRawReader(rawReader),
33 4 : fPosition(-1),
34 4 : fData(NULL),
35 4 : fDataSize(0)
36 20 : {
37 : //
38 : // Create an object to read ACORDE raw data
39 : //
40 : // Created: 04 Feb 2008 Mario Sitta
41 : //
42 :
43 4 : fWord[0] = fWord[1] = fWord[2] = fWord[3] = 0;
44 :
45 : // Select the raw data corresponding to the ACORDE detector id
46 : // fRawReader->Reset();
47 20 : AliDebug(1,Form("Selecting raw data for detector %d",AliDAQ::DetectorID("ACORDE")));
48 4 : fRawReader->Select("ACORDE");
49 :
50 8 : }
51 :
52 : //_____________________________________________________________________________
53 : AliACORDERawStream::AliACORDERawStream(const AliACORDERawStream &r) :
54 0 : TObject(),
55 0 : fRawReader(r.fRawReader),
56 0 : fPosition(-1),
57 0 : fData(NULL),
58 0 : fDataSize(0)
59 0 : {
60 : // Simple copy constructor
61 0 : ((AliACORDERawStream &) r).Copy(*this);
62 0 : }
63 :
64 : //_____________________________________________________________________________
65 : AliACORDERawStream::~AliACORDERawStream()
66 8 : {
67 : // Default destructor
68 12 : }
69 :
70 : //_____________________________________________________________________________
71 : AliACORDERawStream &AliACORDERawStream::operator=(const AliACORDERawStream &r)
72 : {
73 : // Simple operator=
74 0 : if (this != &r) ((AliACORDERawStream &) r).Copy(*this);
75 0 : return *this;
76 : }
77 :
78 : //_____________________________________________________________________________
79 : void AliACORDERawStream::Reset()
80 : {
81 : //
82 : // Reset the raw stream parameters
83 : //
84 : // Input:
85 : //
86 : // Output:
87 : //
88 : // Created: 04 Feb 2008 Mario Sitta
89 : //
90 :
91 0 : fPosition = -1;
92 0 : fData = NULL;
93 :
94 0 : if (fRawReader) fRawReader->Reset();
95 0 : }
96 :
97 : //_____________________________________________________________________________
98 : Bool_t AliACORDERawStream::Next()
99 : {
100 : //
101 : // Read next digit from the ACORDE raw data stream;
102 : // return kFALSE in case of error or no digits left
103 : //
104 : // Input:
105 : //
106 : // Output:
107 : //
108 : // Created: 04 Feb 2008 Mario Sitta
109 : //
110 :
111 8 : if (fPosition >= 0) return kFALSE;
112 :
113 4 : if (!fRawReader->ReadNextData(fData)) return kFALSE;
114 4 : if (fRawReader->GetDataSize() == 0) return kFALSE;
115 :
116 4 : fDataSize = fRawReader->GetDataSize();
117 4 : if (fDataSize != 16) {
118 0 : fRawReader->AddFatalErrorLog(kRawDataSizeErr,Form("size %d != 16",fDataSize));
119 0 : AliWarning(Form("Wrong ACORDE raw data size: %d, expected 16 bytes!",fDataSize));
120 0 : return kFALSE;
121 : }
122 :
123 4 : fPosition = 0;
124 :
125 40 : for (Int_t i=0; i<4; i++)
126 16 : fWord[i] = GetNextWord();
127 :
128 4 : return kTRUE;
129 4 : }
130 :
131 : //_____________________________________________________________________________
132 : UInt_t AliACORDERawStream::GetWord(Int_t index) const
133 : {
134 : //
135 : // Returns the ``index'' word from ACORDE raw data.
136 : //
137 : // Input:
138 : // index : the index of the requested word
139 : // Output:
140 : // word : the 32 bit ``index'' word
141 : //
142 : // Created: 12 Feb 2008 Mario Sitta
143 : //
144 :
145 480 : if (index < 0 || index > 3) {
146 0 : AliWarning(Form("Wrong word index %d, returning 0",index));
147 0 : return 0;
148 : } else {
149 240 : return fWord[index];
150 : }
151 :
152 240 : }
153 :
154 : //_____________________________________________________________________________
155 : UInt_t AliACORDERawStream::GetNextWord()
156 : {
157 : //
158 : // Returns the next 32 bit word inside the raw data payload.
159 : // The method is supposed to be endian (platform) independent.
160 : //
161 : // Input:
162 : //
163 : // Output:
164 : // word : a 32 bit word containing the data
165 : //
166 : // Created: 04 Feb 2008 Mario Sitta
167 : //
168 :
169 48 : if (!fData || fPosition < 0)
170 0 : AliFatal("Raw data payload buffer is not yet initialized !");
171 :
172 : UInt_t word = 0;
173 16 : word |= fData[fPosition++];
174 16 : word |= fData[fPosition++] << 8;
175 16 : word |= fData[fPosition++] << 16;
176 16 : word |= fData[fPosition++] << 24;
177 :
178 16 : return word;
179 : }
180 :
181 : //_____________________________________________________________________________
182 :
183 : Int_t AliACORDERawStream::GetNEvents(char* fileName)
184 : {
185 : // Returns the Total Number of Events recorded by ACORDE
186 : // Note: it may be a better way to do it !!
187 : // Input: fileName to Analyze
188 : // Output: Number of Total Events (fNEvents) in fileName
189 : // Created: 25 March 2008
190 : // Author: Mario Rodriguez Cahuantzi <mrodrigu@mail.cern.ch>
191 :
192 0 : AliRawReader* rCount = new AliRawReaderRoot(fileName);
193 : Int_t DyM=0;
194 : Int_t fNEvents=0;
195 0 : while(DyM==0)
196 : {
197 0 : if (!rCount->NextEvent()) DyM=1;
198 0 : else fNEvents++;
199 : }
200 0 : delete rCount;
201 0 : return fNEvents;
202 0 : }
203 :
204 : //____________________________________________________________________________
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