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04fa961a | 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 | ||
bea6b2a4 | 16 | /* $Id$ */ |
17 | ||
04fa961a | 18 | /////////////////////////////////////////////////////////////////////////////// |
bea6b2a4 | 19 | /// |
20 | /// This is a class for reading raw data files. | |
21 | /// | |
22 | /// The files of one event are expected to be in one directory. The name | |
23 | /// of the directory is "raw" + the event number. Each file contains | |
24 | /// the raw data (with data header) of one DDL. The convention for the | |
25 | /// file names is "DET_#DDL.ddl". "DET" is the name of the detector and | |
26 | /// "#DDL" is the unique equipment ID. | |
27 | /// | |
28 | /// The constructor of AliRawReaderFile takes the event number or the | |
29 | /// directory name as argument. | |
30 | /// | |
04fa961a | 31 | /////////////////////////////////////////////////////////////////////////////// |
32 | ||
b09247a2 | 33 | #include <cstdlib> |
04fa961a | 34 | #include "AliRawReaderFile.h" |
df3a33be | 35 | #include "AliDAQ.h" |
39f9963f | 36 | #include <TSystem.h> |
df3a33be | 37 | #include <TArrayC.h> |
04fa961a | 38 | |
39 | ||
40 | ClassImp(AliRawReaderFile) | |
41 | ||
42 | ||
39f9963f | 43 | AliRawReaderFile::AliRawReaderFile(Int_t eventNumber) : |
dd9a70fe | 44 | fEventIndex(eventNumber), |
45 | fDirName("."), | |
39f9963f | 46 | fDirectory(NULL), |
47 | fStream(NULL), | |
48 | fEquipmentId(-1), | |
49 | fBuffer(NULL), | |
1c10cde6 | 50 | fBufferSize(0), |
df3a33be | 51 | fEquipmentSize(0), |
52 | fDDLIndex(NULL), | |
be974aae | 53 | fDDLCurrent(-1), |
54 | fType(7), | |
55 | fRunNb(0), | |
56 | fDetectorPattern(0), | |
57 | fTimestamp(0) | |
04fa961a | 58 | { |
39f9963f | 59 | // create an object to read digits from the given event |
dd9a70fe | 60 | // in the current directory |
04fa961a | 61 | |
dd9a70fe | 62 | fDirectory = OpenDirectory(); |
39f9963f | 63 | OpenNextFile(); |
64 | fHeader = new AliRawDataHeader; | |
be974aae | 65 | |
66 | fId[0] = fId[1] = 0; | |
67 | fTriggerPattern[0] = fTriggerPattern[1] = 0; | |
39f9963f | 68 | } |
69 | ||
dd9a70fe | 70 | AliRawReaderFile::AliRawReaderFile(const char* dirName, Int_t eventNumber) : |
71 | fEventIndex(eventNumber), | |
39f9963f | 72 | fDirName(dirName), |
73 | fDirectory(NULL), | |
74 | fStream(NULL), | |
75 | fEquipmentId(-1), | |
76 | fBuffer(NULL), | |
1c10cde6 | 77 | fBufferSize(0), |
df3a33be | 78 | fEquipmentSize(0), |
79 | fDDLIndex(NULL), | |
be974aae | 80 | fDDLCurrent(-1), |
81 | fType(7), | |
82 | fRunNb(0), | |
83 | fDetectorPattern(0), | |
84 | fTimestamp(0) | |
39f9963f | 85 | { |
86 | // create an object to read digits from the given directory | |
87 | ||
dd9a70fe | 88 | fDirectory = OpenDirectory(); |
39f9963f | 89 | OpenNextFile(); |
90 | fHeader = new AliRawDataHeader; | |
be974aae | 91 | |
92 | fId[0] = fId[1] = 0; | |
93 | fTriggerPattern[0] = fTriggerPattern[1] = 0; | |
04fa961a | 94 | } |
95 | ||
96 | AliRawReaderFile::~AliRawReaderFile() | |
97 | { | |
98 | // close the input file | |
99 | ||
39f9963f | 100 | if (fDirectory) gSystem->FreeDirectory(fDirectory); |
04fa961a | 101 | if (fStream) { |
102 | #if defined(__HP_aCC) || defined(__DECCXX) | |
103 | if (fStream->rdbuf()->is_open()) fStream->close(); | |
104 | #else | |
105 | if (fStream->is_open()) fStream->close(); | |
106 | #endif | |
107 | delete fStream; | |
108 | } | |
1c10cde6 | 109 | if (fHeader) delete fHeader; |
04fa961a | 110 | if (fBuffer) delete[] fBuffer; |
df3a33be | 111 | if (fDDLIndex) delete fDDLIndex; fDDLIndex=NULL; |
04fa961a | 112 | } |
113 | ||
299738b9 | 114 | void AliRawReaderFile::RequireHeader(Bool_t required) |
115 | { | |
116 | // Reading of raw data in case of missing | |
117 | // raw data header is not implemented for | |
118 | // this class | |
1c10cde6 | 119 | if (!required) { |
839d0155 | 120 | Warning("AliRawReaderFile","Reading of raw data without raw data header!"); |
1c10cde6 | 121 | if (fHeader) delete fHeader; |
122 | fHeader = NULL; | |
123 | } | |
124 | else { | |
125 | if (!fHeader) fHeader = new AliRawDataHeader; | |
126 | } | |
299738b9 | 127 | |
128 | AliRawReader::RequireHeader(required); | |
129 | } | |
04fa961a | 130 | |
dd9a70fe | 131 | TString AliRawReaderFile::GetDirName() const |
132 | { | |
133 | // return the current directory name | |
134 | ||
135 | TString dirName(fDirName); | |
136 | if (fEventIndex >= 0) { | |
137 | dirName += "/raw"; | |
138 | dirName += fEventIndex; | |
139 | } | |
140 | return dirName; | |
141 | } | |
142 | ||
143 | void* AliRawReaderFile::OpenDirectory() | |
144 | { | |
145 | // open and return the directory | |
146 | ||
147 | TString dirName = GetDirName(); | |
148 | void* directory = gSystem->OpenDirectory(dirName); | |
149 | if (!directory) { | |
150 | Error("OpenDirectory", "could not open directory %s", dirName.Data()); | |
151 | } | |
152 | return directory; | |
153 | } | |
154 | ||
df3a33be | 155 | Bool_t AliRawReaderFile::CreateFileIndex() |
156 | { | |
157 | // scan the files of the directory and create index of all DDL files | |
158 | // returns kFALSE if no DDL files available | |
159 | Bool_t result=kFALSE; | |
160 | fDDLCurrent=-1; | |
161 | if (fDDLIndex) return fDDLIndex->GetSize()>0; | |
162 | if (!fDirectory) return kFALSE; | |
163 | fDDLIndex=new TArrayC(0); | |
164 | if (!fDDLIndex) return kFALSE; | |
165 | TString entry; | |
166 | while (entry = gSystem->GetDirEntry(fDirectory)) { | |
167 | const char* filename=entry.Data(); | |
168 | if (!filename || entry.IsNull()) break; | |
3fbd60fe | 169 | if (entry.BeginsWith("run")) { |
170 | entry.ReplaceAll("run",""); | |
171 | fRunNb = entry.Atoi(); | |
172 | continue; | |
173 | } | |
df3a33be | 174 | if (!entry.EndsWith(".ddl")) continue; |
175 | result=kTRUE; | |
176 | entry.Remove(0, entry.Last('_')+1); | |
177 | entry.Remove(entry.Length()-4); | |
178 | Int_t equipmentId = atoi(entry.Data()); | |
4ba28796 | 179 | Int_t ddlIndex = -1; |
180 | fDetectorPattern |= (1 << AliDAQ::DetectorIDFromDdlID(equipmentId,ddlIndex)); | |
df3a33be | 181 | if (fDDLIndex->GetSize()<=equipmentId) { |
182 | fDDLIndex->Set(equipmentId+1); | |
183 | } | |
184 | char* array=(char*)fDDLIndex->GetArray(); | |
185 | array[equipmentId]=1; | |
186 | } | |
187 | ||
188 | return result; | |
189 | } | |
190 | ||
04fa961a | 191 | Bool_t AliRawReaderFile::OpenNextFile() |
192 | { | |
42d20574 | 193 | // open the next file |
194 | // returns kFALSE if the current file is the last one | |
195 | ||
df3a33be | 196 | if (!fDDLIndex && !CreateFileIndex()) return kFALSE; |
197 | if (fSelectMinEquipmentId>=0 && fSelectMinEquipmentId>fEquipmentId) | |
198 | fDDLCurrent=fSelectMinEquipmentId-1; | |
199 | ||
04fa961a | 200 | if (fStream) { |
201 | #if defined(__HP_aCC) || defined(__DECCXX) | |
202 | if (fStream->rdbuf()->is_open()) fStream->close(); | |
203 | #else | |
204 | if (fStream->is_open()) fStream->close(); | |
205 | #endif | |
206 | delete fStream; | |
207 | fStream = NULL; | |
39f9963f | 208 | fEquipmentId = -1; |
1c10cde6 | 209 | fEquipmentSize = 0; |
04fa961a | 210 | } |
04fa961a | 211 | |
39f9963f | 212 | if (!fDirectory) return kFALSE; |
df3a33be | 213 | while (++fDDLCurrent<(fDDLIndex->GetSize()) && |
214 | (fDDLCurrent<=fSelectMaxEquipmentId || fSelectMaxEquipmentId<0)) { | |
215 | if (fDDLIndex->At(fDDLCurrent)==0) continue; | |
216 | Int_t dummy=0; | |
217 | TString entry; | |
218 | entry.Form("%s_%d.ddl", AliDAQ::DetectorNameFromDdlID(fDDLCurrent, dummy), fDDLCurrent); | |
dd9a70fe | 219 | char* fileName = gSystem->ConcatFileName(GetDirName(), entry); |
df3a33be | 220 | if (!fileName) continue; |
be974aae | 221 | // read the timestamp |
222 | FileStat_t buf; | |
223 | if (gSystem->GetPathInfo(fileName,buf) == 0) { | |
224 | fTimestamp = buf.fMtime; | |
225 | } | |
04fa961a | 226 | #ifndef __DECCXX |
39f9963f | 227 | fStream = new fstream(fileName, ios::binary|ios::in); |
04fa961a | 228 | #else |
39f9963f | 229 | fStream = new fstream(fileName, ios::in); |
04fa961a | 230 | #endif |
df3a33be | 231 | delete [] fileName; |
39f9963f | 232 | break; |
233 | } | |
234 | ||
235 | if (!fStream) return kFALSE; | |
df3a33be | 236 | fEquipmentId = fDDLCurrent; |
04fa961a | 237 | #if defined(__HP_aCC) || defined(__DECCXX) |
238 | return (fStream->rdbuf()->is_open()); | |
239 | #else | |
240 | return (fStream->is_open()); | |
241 | #endif | |
242 | } | |
243 | ||
244 | ||
39f9963f | 245 | Bool_t AliRawReaderFile::ReadHeader() |
04fa961a | 246 | { |
39f9963f | 247 | // read a data header at the current stream position |
04fa961a | 248 | // returns kFALSE if the mini header could not be read |
249 | ||
df3a33be | 250 | if (!fStream && !OpenNextFile()) return kFALSE; |
04fa961a | 251 | do { |
252 | if (fCount > 0) fStream->seekg(Int_t(fStream->tellg()) + fCount); | |
1c10cde6 | 253 | if (fHeader) { |
254 | while (!fStream->read((char*) fHeader, sizeof(AliRawDataHeader))) { | |
255 | if (!OpenNextFile()) return kFALSE; | |
256 | } | |
04fa961a | 257 | } |
cdd735d9 | 258 | else { |
259 | if (fStream->eof()) | |
260 | if (!OpenNextFile()) return kFALSE; | |
261 | } | |
1c10cde6 | 262 | if (fHeader && fHeader->fSize != 0xFFFFFFFF) { |
39f9963f | 263 | fCount = fHeader->fSize - sizeof(AliRawDataHeader); |
264 | } else { | |
265 | UInt_t currentPos = fStream->tellg(); | |
266 | fStream->seekg(0, ios::end); | |
267 | fCount = UInt_t(fStream->tellg()) - currentPos; | |
268 | fStream->seekg(currentPos); | |
269 | } | |
1c10cde6 | 270 | fEquipmentSize = fCount; |
271 | if (fHeader) fEquipmentSize += sizeof(AliRawDataHeader); | |
04fa961a | 272 | } while (!IsSelected()); |
273 | return kTRUE; | |
274 | } | |
275 | ||
276 | Bool_t AliRawReaderFile::ReadNextData(UChar_t*& data) | |
277 | { | |
278 | // reads the next payload at the current stream position | |
279 | // returns kFALSE if the data could not be read | |
280 | ||
281 | while (fCount == 0) { | |
39f9963f | 282 | if (!ReadHeader()) return kFALSE; |
04fa961a | 283 | } |
284 | if (fBufferSize < fCount) { | |
285 | if (fBuffer) delete[] fBuffer; | |
286 | fBufferSize = Int_t(fCount*1.2); | |
287 | fBuffer = new UChar_t[fBufferSize]; | |
288 | } | |
289 | if (!fStream->read((char*) fBuffer, fCount)) { | |
290 | Error("ReadNext", "could not read data!"); | |
291 | return kFALSE; | |
292 | } | |
293 | fCount = 0; | |
294 | ||
295 | data = fBuffer; | |
296 | return kTRUE; | |
297 | } | |
298 | ||
299 | Bool_t AliRawReaderFile::ReadNext(UChar_t* data, Int_t size) | |
300 | { | |
301 | // reads the next block of data at the current stream position | |
302 | // returns kFALSE if the data could not be read | |
303 | ||
304 | if (!fStream->read((char*) data, size)) { | |
305 | Error("ReadNext", "could not read data!"); | |
306 | return kFALSE; | |
307 | } | |
308 | fCount -= size; | |
309 | return kTRUE; | |
310 | } | |
311 | ||
312 | ||
313 | Bool_t AliRawReaderFile::Reset() | |
314 | { | |
dd9a70fe | 315 | // reset the current stream position to the first DDL file of the curevent |
04fa961a | 316 | |
dd9a70fe | 317 | void* directory = OpenDirectory(); |
318 | if (!directory) return kFALSE; | |
39f9963f | 319 | |
320 | if (fStream) { | |
04fa961a | 321 | #if defined(__HP_aCC) || defined(__DECCXX) |
322 | if (fStream->rdbuf()->is_open()) fStream->close(); | |
323 | #else | |
324 | if (fStream->is_open()) fStream->close(); | |
325 | #endif | |
326 | delete fStream; | |
327 | fStream = NULL; | |
04fa961a | 328 | } |
329 | ||
39f9963f | 330 | if (fDirectory) gSystem->FreeDirectory(fDirectory); |
331 | fDirectory = directory; | |
04fa961a | 332 | |
df3a33be | 333 | // Matthias 05.06.2008 |
334 | // do not open the next file. That might collide with a subsequent | |
335 | // SelectEquipment call as the 'file pointer' is already set. | |
336 | // This is important for the indexing of the DDL files. | |
337 | // --------------------------------------------------------- | |
338 | // All ReadNext functions first require the fCount member to be | |
339 | // non zero or call ReadHeader. That allows to postpone the call | |
340 | // to OpenNextFile to the next invocation of ReadHeader. | |
341 | // ReadHeader has been mofified according to that. | |
342 | /* | |
39f9963f | 343 | OpenNextFile(); |
df3a33be | 344 | */ |
345 | fEquipmentId=-1; | |
346 | fDDLCurrent=-1; | |
04fa961a | 347 | fCount = 0; |
348 | return kTRUE; | |
349 | } | |
350 | ||
dd9a70fe | 351 | Bool_t AliRawReaderFile::NextEvent() |
352 | { | |
353 | // go to the next event directory | |
354 | ||
df3a33be | 355 | if (fDDLIndex) delete fDDLIndex; |
356 | fDDLIndex=NULL; | |
4ba28796 | 357 | fDetectorPattern = 0; |
dd9a70fe | 358 | if (fEventIndex < -1) return kFALSE; |
359 | ||
360 | do { | |
361 | TString dirName = fDirName + "/raw"; | |
362 | dirName += (fEventIndex + 1); | |
363 | void* directory = gSystem->OpenDirectory(dirName); | |
364 | if (!directory) return kFALSE; | |
365 | gSystem->FreeDirectory(directory); | |
366 | ||
367 | fEventIndex++; | |
368 | Reset(); | |
369 | } while (!IsEventSelected()); | |
370 | ||
be974aae | 371 | // Read the header of the first payload |
372 | // in order to fill the 'fake' event header | |
373 | if (ReadHeader() && fHeader) { | |
374 | fId[0] = ((fHeader->GetEventID2() >> 20) & 0xf); | |
375 | fId[1] = (fHeader->GetEventID1() & 0xfff) | ((fHeader->GetEventID2() & 0xfffff) << 12); | |
376 | fTriggerPattern[0] = (fHeader->GetTriggerClasses() & 0xffffffff); | |
377 | fTriggerPattern[1] = ((fHeader->GetTriggerClasses() >> 32) & 0x3ffff); | |
378 | } | |
379 | else { | |
380 | Warning("AliRawReaderFile","Can not read CDH header! The event header fields will be empty!"); | |
381 | } | |
382 | Reset(); | |
383 | ||
38cf12f3 | 384 | fEventNumber++; |
385 | ||
dd9a70fe | 386 | return kTRUE; |
387 | } | |
388 | ||
389 | Bool_t AliRawReaderFile::RewindEvents() | |
390 | { | |
391 | // reset the event counter | |
392 | ||
393 | if (fEventIndex >= 0) fEventIndex = -1; | |
38cf12f3 | 394 | fEventNumber = -1; |
dd9a70fe | 395 | return Reset(); |
396 | } |