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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 from a root file. | |
21 | /// | |
22 | /// The root file is expected to contain a tree of name "RAW" with | |
23 | /// a branch of name "rawevent" which contains objects of type | |
24 | /// AliRawEvent. | |
25 | /// | |
26 | /// The file name and the event number are arguments of the constructor | |
27 | /// of AliRawReaderRoot. | |
28 | /// | |
04fa961a | 29 | /////////////////////////////////////////////////////////////////////////////// |
30 | ||
a197a4ce | 31 | #include <TFile.h> |
32 | #include <TTree.h> | |
04fa961a | 33 | #include "AliRawReaderRoot.h" |
42d20574 | 34 | #include "AliRawEvent.h" |
f2dc6b20 | 35 | #include "AliRawEventHeaderBase.h" |
94d918a7 | 36 | #include "AliRawEquipment.h" |
a197a4ce | 37 | #include "AliRawEquipmentHeader.h" |
38 | #include "AliRawData.h" | |
04fa961a | 39 | |
40 | ||
41 | ClassImp(AliRawReaderRoot) | |
42 | ||
6923e953 | 43 | AliRawReaderRoot::AliRawReaderRoot() : |
44 | fFile(NULL), | |
45 | fBranch(NULL), | |
46 | fEventIndex(-1), | |
47 | fEvent(NULL), | |
48 | fSubEventIndex(0), | |
49 | fSubEvent(NULL), | |
50 | fEquipmentIndex(0), | |
51 | fEquipment(NULL), | |
52 | fRawData(NULL), | |
53 | fPosition(NULL), | |
54 | fEnd(NULL) | |
55 | { | |
56 | // default constructor | |
57 | ||
58 | } | |
04fa961a | 59 | |
dd9a70fe | 60 | AliRawReaderRoot::AliRawReaderRoot(const char* fileName, Int_t eventNumber) : |
61 | fFile(NULL), | |
62 | fBranch(NULL), | |
63 | fEventIndex(eventNumber), | |
64 | fEvent(NULL), | |
65 | fSubEventIndex(0), | |
66 | fSubEvent(NULL), | |
94d918a7 | 67 | fEquipmentIndex(0), |
68 | fEquipment(NULL), | |
dd9a70fe | 69 | fRawData(NULL), |
70 | fPosition(NULL), | |
71 | fEnd(NULL) | |
04fa961a | 72 | { |
73 | // create an object to read digits from the given input file for the | |
74 | // event with the given number | |
75 | ||
03c6d9a3 | 76 | TDirectory* dir = gDirectory; |
04fa961a | 77 | fFile = TFile::Open(fileName); |
03c6d9a3 | 78 | dir->cd(); |
04fa961a | 79 | if (!fFile || !fFile->IsOpen()) { |
80 | Error("AliRawReaderRoot", "could not open file %s", fileName); | |
81 | return; | |
82 | } | |
83 | TTree* tree = (TTree*) fFile->Get("RAW"); | |
84 | if (!tree) { | |
85 | Error("AliRawReaderRoot", "no raw data tree found"); | |
86 | return; | |
87 | } | |
dd9a70fe | 88 | fBranch = tree->GetBranch("rawevent"); |
89 | if (!fBranch) { | |
04fa961a | 90 | Error("AliRawReaderRoot", "no raw data branch found"); |
91 | return; | |
92 | } | |
93 | ||
94 | fEvent = new AliRawEvent; | |
dd9a70fe | 95 | fBranch->SetAddress(&fEvent); |
96 | if (fEventIndex >= 0) { | |
97 | if (fBranch->GetEntry(fEventIndex) <= 0) { | |
98 | Error("AliRawReaderRoot", "no event with number %d found", fEventIndex); | |
99 | return; | |
100 | } | |
04fa961a | 101 | } |
04fa961a | 102 | } |
103 | ||
dd9a70fe | 104 | AliRawReaderRoot::AliRawReaderRoot(AliRawEvent* event) : |
105 | fFile(NULL), | |
106 | fBranch(NULL), | |
107 | fEventIndex(-1), | |
108 | fEvent(event), | |
109 | fSubEventIndex(0), | |
110 | fSubEvent(NULL), | |
94d918a7 | 111 | fEquipmentIndex(0), |
112 | fEquipment(NULL), | |
dd9a70fe | 113 | fRawData(NULL), |
114 | fPosition(NULL), | |
115 | fEnd(NULL) | |
04fa961a | 116 | { |
117 | // create an object to read digits from the given raw event | |
118 | ||
04fa961a | 119 | } |
120 | ||
42d20574 | 121 | AliRawReaderRoot::AliRawReaderRoot(const AliRawReaderRoot& rawReader) : |
dd9a70fe | 122 | AliRawReader(rawReader), |
123 | fFile(NULL), | |
124 | fBranch(NULL), | |
125 | fEventIndex(rawReader.fEventIndex), | |
126 | fEvent(NULL), | |
127 | fSubEventIndex(rawReader.fSubEventIndex), | |
128 | fSubEvent(NULL), | |
94d918a7 | 129 | fEquipmentIndex(rawReader.fEquipmentIndex), |
130 | fEquipment(NULL), | |
dd9a70fe | 131 | fRawData(NULL), |
132 | fPosition(NULL), | |
133 | fEnd(NULL) | |
42d20574 | 134 | { |
135 | // copy constructor | |
136 | ||
dd9a70fe | 137 | if (rawReader.fFile) { |
138 | TDirectory* dir = gDirectory; | |
139 | fFile = TFile::Open(rawReader.fFile->GetName()); | |
140 | dir->cd(); | |
141 | if (!fFile || !fFile->IsOpen()) { | |
142 | Error("AliRawReaderRoot", "could not open file %s", | |
143 | rawReader.fFile->GetName()); | |
144 | return; | |
145 | } | |
146 | TTree* tree = (TTree*) fFile->Get("RAW"); | |
147 | if (!tree) { | |
148 | Error("AliRawReaderRoot", "no raw data tree found"); | |
149 | return; | |
150 | } | |
151 | fBranch = tree->GetBranch("rawevent"); | |
152 | if (!fBranch) { | |
153 | Error("AliRawReaderRoot", "no raw data branch found"); | |
154 | return; | |
155 | } | |
156 | ||
157 | fEvent = new AliRawEvent; | |
158 | fBranch->SetAddress(&fEvent); | |
159 | if (fEventIndex >= 0) { | |
160 | if (fBranch->GetEntry(fEventIndex) <= 0) { | |
161 | Error("AliRawReaderRoot", "no event with number %d found", | |
162 | fEventIndex); | |
163 | return; | |
164 | } | |
165 | } | |
166 | } else { | |
167 | fEvent = rawReader.fEvent; | |
168 | } | |
169 | ||
170 | if (fSubEventIndex > 0) { | |
171 | fSubEvent = fEvent->GetSubEvent(fSubEventIndex-1); | |
94d918a7 | 172 | fEquipment = fSubEvent->GetEquipment(fEquipmentIndex); |
173 | fRawData = fEquipment->GetRawData(); | |
dd9a70fe | 174 | fCount = 0; |
175 | fHeader = (AliRawDataHeader*) ((UChar_t*) fRawData->GetBuffer() + | |
176 | ((UChar_t*) rawReader.fHeader - | |
177 | (UChar_t*) rawReader.fRawData->GetBuffer())); | |
178 | fPosition = (UChar_t*) fRawData->GetBuffer() + | |
179 | (rawReader.fPosition - (UChar_t*) rawReader.fRawData->GetBuffer()); | |
180 | fEnd = ((UChar_t*) fRawData->GetBuffer()) + fRawData->GetSize(); | |
181 | } | |
42d20574 | 182 | } |
183 | ||
184 | AliRawReaderRoot& AliRawReaderRoot::operator = (const AliRawReaderRoot& | |
185 | rawReader) | |
186 | { | |
187 | // assignment operator | |
188 | ||
189 | this->~AliRawReaderRoot(); | |
190 | new(this) AliRawReaderRoot(rawReader); | |
191 | return *this; | |
192 | } | |
193 | ||
04fa961a | 194 | AliRawReaderRoot::~AliRawReaderRoot() |
195 | { | |
196 | // delete objects and close root file | |
197 | ||
198 | if (fFile) { | |
199 | if (fEvent) delete fEvent; | |
200 | fFile->Close(); | |
201 | delete fFile; | |
202 | } | |
203 | } | |
204 | ||
1fb5b4a8 | 205 | const AliRawEventHeaderBase* AliRawReaderRoot::GetEventHeader() const |
206 | { | |
207 | // Get the even header | |
208 | // Return NULL in case of failure | |
209 | if (!fEvent) return NULL; | |
210 | return fEvent->GetHeader(); | |
211 | } | |
04fa961a | 212 | |
42d20574 | 213 | UInt_t AliRawReaderRoot::GetType() const |
04fa961a | 214 | { |
215 | // get the type from the event header | |
216 | ||
217 | if (!fEvent) return 0; | |
f2dc6b20 | 218 | return fEvent->GetHeader()->Get("Type"); |
04fa961a | 219 | } |
220 | ||
42d20574 | 221 | UInt_t AliRawReaderRoot::GetRunNumber() const |
04fa961a | 222 | { |
223 | // get the run number from the event header | |
224 | ||
225 | if (!fEvent) return 0; | |
f2dc6b20 | 226 | return fEvent->GetHeader()->Get("RunNb"); |
04fa961a | 227 | } |
228 | ||
42d20574 | 229 | const UInt_t* AliRawReaderRoot::GetEventId() const |
04fa961a | 230 | { |
231 | // get the event id from the event header | |
232 | ||
233 | if (!fEvent) return NULL; | |
f2dc6b20 | 234 | return fEvent->GetHeader()->GetP("Id"); |
04fa961a | 235 | } |
236 | ||
42d20574 | 237 | const UInt_t* AliRawReaderRoot::GetTriggerPattern() const |
04fa961a | 238 | { |
239 | // get the trigger pattern from the event header | |
240 | ||
241 | if (!fEvent) return NULL; | |
f2dc6b20 | 242 | return fEvent->GetHeader()->GetP("TriggerPattern"); |
04fa961a | 243 | } |
244 | ||
42d20574 | 245 | const UInt_t* AliRawReaderRoot::GetDetectorPattern() const |
04fa961a | 246 | { |
247 | // get the detector pattern from the event header | |
248 | ||
249 | if (!fEvent) return NULL; | |
f2dc6b20 | 250 | return fEvent->GetHeader()->GetP("DetectorPattern"); |
04fa961a | 251 | } |
252 | ||
42d20574 | 253 | const UInt_t* AliRawReaderRoot::GetAttributes() const |
04fa961a | 254 | { |
255 | // get the type attributes from the event header | |
256 | ||
257 | if (!fEvent) return NULL; | |
f2dc6b20 | 258 | return fEvent->GetHeader()->GetP("TypeAttribute"); |
04fa961a | 259 | } |
260 | ||
e94ad92c | 261 | const UInt_t* AliRawReaderRoot::GetSubEventAttributes() const |
262 | { | |
263 | // get the type attributes from the sub event header | |
264 | ||
265 | if (!fSubEvent) return NULL; | |
f2dc6b20 | 266 | return fSubEvent->GetHeader()->GetP("TypeAttribute"); |
e94ad92c | 267 | } |
268 | ||
c946ab02 | 269 | UInt_t AliRawReaderRoot::GetLDCId() const |
270 | { | |
271 | // get the LDC Id from the event header | |
272 | ||
94d918a7 | 273 | if (!fEvent || !fSubEvent) return 0; |
f2dc6b20 | 274 | return fSubEvent->GetHeader()->Get("LdcId"); |
c946ab02 | 275 | } |
276 | ||
42d20574 | 277 | UInt_t AliRawReaderRoot::GetGDCId() const |
04fa961a | 278 | { |
279 | // get the GDC Id from the event header | |
280 | ||
281 | if (!fEvent) return 0; | |
f2dc6b20 | 282 | return fEvent->GetHeader()->Get("GdcId"); |
04fa961a | 283 | } |
284 | ||
741c154c | 285 | UInt_t AliRawReaderRoot::GetTimestamp() const |
286 | { | |
287 | if (!fEvent) return 0; | |
288 | return fEvent->GetHeader()->Get("Timestamp"); | |
289 | } | |
04fa961a | 290 | |
c946ab02 | 291 | Int_t AliRawReaderRoot::GetEquipmentSize() const |
292 | { | |
293 | // get the size of the equipment | |
294 | ||
94d918a7 | 295 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return 0; |
296 | return fEquipment->GetEquipmentHeader()->GetEquipmentSize(); | |
c946ab02 | 297 | } |
298 | ||
299 | Int_t AliRawReaderRoot::GetEquipmentType() const | |
300 | { | |
301 | // get the type from the equipment header | |
302 | ||
94d918a7 | 303 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return -1; |
304 | return fEquipment->GetEquipmentHeader()->GetEquipmentType(); | |
c946ab02 | 305 | } |
306 | ||
307 | Int_t AliRawReaderRoot::GetEquipmentId() const | |
308 | { | |
309 | // get the ID from the equipment header | |
310 | ||
94d918a7 | 311 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return -1; |
312 | return fEquipment->GetEquipmentHeader()->GetId(); | |
c946ab02 | 313 | } |
314 | ||
315 | const UInt_t* AliRawReaderRoot::GetEquipmentAttributes() const | |
316 | { | |
317 | // get the attributes from the equipment header | |
318 | ||
94d918a7 | 319 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return NULL; |
320 | return fEquipment->GetEquipmentHeader()->GetTypeAttribute(); | |
c946ab02 | 321 | } |
322 | ||
323 | Int_t AliRawReaderRoot::GetEquipmentElementSize() const | |
324 | { | |
325 | // get the basic element size from the equipment header | |
326 | ||
94d918a7 | 327 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return 0; |
328 | return fEquipment->GetEquipmentHeader()->GetBasicSizeType(); | |
c946ab02 | 329 | } |
330 | ||
299738b9 | 331 | Int_t AliRawReaderRoot::GetEquipmentHeaderSize() const |
332 | { | |
333 | // get the size of the equipment header (28 bytes by default) | |
334 | ||
335 | if (!fEvent || !fEquipment || !fEquipment->GetEquipmentHeader()) return 0; | |
336 | return fEquipment->GetEquipmentHeader()->HeaderSize(); | |
337 | } | |
338 | ||
edd06192 | 339 | // _________________________________________________________________________ |
edd06192 | 340 | void AliRawReaderRoot::SwapData(const void* inbuf, const void* outbuf, UInt_t size) { |
341 | // The method swaps the contents of the | |
342 | // raw-data event header | |
91f76e9b | 343 | UInt_t intCount = (size+3)/sizeof(UInt_t); |
edd06192 | 344 | |
345 | UInt_t* buf = (UInt_t*) inbuf; // temporary integers buffer | |
346 | for (UInt_t i=0; i<intCount; i++, buf++) { | |
347 | UInt_t value = SwapWord(*buf); | |
dae3f0d9 | 348 | if (i==(intCount-1)) |
349 | memcpy((UInt_t*)outbuf+i, &value, size%sizeof(UInt_t)); | |
350 | else | |
351 | memcpy((UInt_t*)outbuf+i, &value, sizeof(UInt_t)); | |
edd06192 | 352 | } |
353 | } | |
354 | // _________________________________________________________________________ | |
c946ab02 | 355 | |
356 | Bool_t AliRawReaderRoot::ReadHeader() | |
04fa961a | 357 | { |
39f9963f | 358 | // read a data header at the current position |
359 | // returns kFALSE if the data header could not be read | |
04fa961a | 360 | |
b4857df7 | 361 | fErrorCode = 0; |
04fa961a | 362 | if (!fEvent) return kFALSE; |
b4857df7 | 363 | |
04fa961a | 364 | do { |
b4857df7 | 365 | // skip payload (if event was not selected) |
366 | if (fCount > 0) fPosition += fCount; | |
367 | ||
94d918a7 | 368 | // get the first or the next equipment if at the end of an equipment |
369 | if (!fEquipment || (fPosition >= fEnd)) { | |
b4857df7 | 370 | |
94d918a7 | 371 | // get the first or the next sub event if at the end of a sub event |
372 | if (!fSubEvent || (fEquipmentIndex >= fSubEvent->GetNEquipments())) { | |
b4857df7 | 373 | |
94d918a7 | 374 | // check for end of event data |
375 | if (fSubEventIndex >= fEvent->GetNSubEvents()) return kFALSE; | |
376 | fSubEvent = fEvent->GetSubEvent(fSubEventIndex++); | |
377 | ||
378 | // check the magic word of the sub event | |
379 | if (!fSubEvent->GetHeader()->IsValid()) { | |
380 | Error("ReadHeader", "wrong magic number in sub event!"); | |
381 | fSubEvent->GetHeader()->Dump(); | |
382 | fErrorCode = kErrMagic; | |
383 | return kFALSE; | |
384 | } | |
385 | ||
386 | fEquipmentIndex = 0; | |
387 | fEquipment = NULL; | |
388 | fRawData = NULL; | |
b4857df7 | 389 | } |
390 | ||
94d918a7 | 391 | // get the next equipment and raw data |
04fa961a | 392 | fCount = 0; |
94d918a7 | 393 | fEquipment = fSubEvent->GetEquipment(fEquipmentIndex++); |
394 | if (!fEquipment) continue; | |
3d65cc80 | 395 | if (!IsSelected()) { |
396 | fPosition = fEnd; | |
397 | continue; | |
398 | } | |
94d918a7 | 399 | fRawData = fEquipment->GetRawData(); |
400 | if (!fRawData) { | |
401 | fPosition = fEnd; | |
402 | continue; | |
403 | } | |
04fa961a | 404 | fPosition = (UChar_t*) fRawData->GetBuffer(); |
405 | fEnd = ((UChar_t*) fRawData->GetBuffer()) + fRawData->GetSize(); | |
406 | } | |
b4857df7 | 407 | |
94d918a7 | 408 | // continue with the next equipment if no data left in the payload |
b4857df7 | 409 | if (fPosition >= fEnd) continue; |
410 | ||
18882b3b | 411 | if (fRequireHeader) { |
412 | // check that there are enough bytes left for the data header | |
413 | if (fPosition + sizeof(AliRawDataHeader) > fEnd) { | |
414 | Error("ReadHeader", "could not read data header!"); | |
415 | Warning("ReadHeader", "skipping %d bytes", fEnd - fPosition); | |
416 | fEquipment->GetEquipmentHeader()->Dump(); | |
417 | fCount = 0; | |
418 | fPosition = fEnd; | |
419 | fErrorCode = kErrNoDataHeader; | |
420 | continue; | |
421 | } | |
422 | ||
423 | // "read" the data header | |
424 | fHeader = (AliRawDataHeader*) fPosition; | |
edd06192 | 425 | #ifndef R__BYTESWAP |
426 | SwapData((void*) fHeader, (void*) fHeaderSwapped, sizeof(AliRawDataHeader)); | |
427 | fHeader=fHeaderSwapped; | |
428 | #endif | |
299738b9 | 429 | if ((fPosition + fHeader->fSize) != fEnd) { |
806e573c | 430 | if (fHeader->fSize != 0xFFFFFFFF) |
431 | Warning("ReadHeader", | |
432 | "Equipment %d : raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !", | |
433 | fEquipment->GetEquipmentHeader()->GetId(),fHeader->fSize, fEnd - fPosition); | |
299738b9 | 434 | fHeader->fSize = fEnd - fPosition; |
435 | } | |
18882b3b | 436 | fPosition += sizeof(AliRawDataHeader); |
04fa961a | 437 | } |
b4857df7 | 438 | |
7c726b91 | 439 | if (fHeader && (fHeader->fSize != 0xFFFFFFFF)) { |
39f9963f | 440 | fCount = fHeader->fSize - sizeof(AliRawDataHeader); |
7c726b91 | 441 | |
442 | // check consistency of data size in the header and in the sub event | |
443 | if (fPosition + fCount > fEnd) { | |
444 | Error("ReadHeader", "size in data header exceeds event size!"); | |
445 | Warning("ReadHeader", "skipping %d bytes", fEnd - fPosition); | |
446 | fEquipment->GetEquipmentHeader()->Dump(); | |
447 | fCount = 0; | |
448 | fPosition = fEnd; | |
449 | fErrorCode = kErrSize; | |
450 | continue; | |
451 | } | |
452 | ||
39f9963f | 453 | } else { |
454 | fCount = fEnd - fPosition; | |
72dd1d4f | 455 | } |
b4857df7 | 456 | |
04fa961a | 457 | } while (!IsSelected()); |
b4857df7 | 458 | |
04fa961a | 459 | return kTRUE; |
460 | } | |
461 | ||
462 | Bool_t AliRawReaderRoot::ReadNextData(UChar_t*& data) | |
463 | { | |
464 | // reads the next payload at the current position | |
465 | // returns kFALSE if the data could not be read | |
466 | ||
b4857df7 | 467 | fErrorCode = 0; |
04fa961a | 468 | while (fCount == 0) { |
c946ab02 | 469 | if (!ReadHeader()) return kFALSE; |
04fa961a | 470 | } |
471 | data = fPosition; | |
472 | fPosition += fCount; | |
473 | fCount = 0; | |
474 | return kTRUE; | |
475 | } | |
476 | ||
477 | Bool_t AliRawReaderRoot::ReadNext(UChar_t* data, Int_t size) | |
478 | { | |
479 | // reads the next block of data at the current position | |
480 | // returns kFALSE if the data could not be read | |
481 | ||
b4857df7 | 482 | fErrorCode = 0; |
04fa961a | 483 | if (fPosition + size > fEnd) { |
484 | Error("ReadNext", "could not read data!"); | |
b4857df7 | 485 | fErrorCode = kErrOutOfBounds; |
04fa961a | 486 | return kFALSE; |
487 | } | |
488 | memcpy(data, fPosition, size); | |
dae3f0d9 | 489 | |
04fa961a | 490 | fPosition += size; |
491 | fCount -= size; | |
492 | return kTRUE; | |
493 | } | |
494 | ||
495 | ||
496 | Bool_t AliRawReaderRoot::Reset() | |
497 | { | |
498 | // reset the current position to the beginning of the event | |
499 | ||
500 | fSubEventIndex = 0; | |
501 | fSubEvent = NULL; | |
94d918a7 | 502 | fEquipmentIndex = 0; |
503 | fEquipment = NULL; | |
04fa961a | 504 | fRawData = NULL; |
39f9963f | 505 | fHeader = NULL; |
04fa961a | 506 | |
507 | fCount = 0; | |
508 | fPosition = fEnd = NULL; | |
509 | return kTRUE; | |
510 | } | |
511 | ||
b4857df7 | 512 | |
dd9a70fe | 513 | Bool_t AliRawReaderRoot::NextEvent() |
514 | { | |
515 | // go to the next event in the root file | |
516 | ||
2da4ef20 | 517 | if (!fBranch) return kFALSE; |
dd9a70fe | 518 | |
519 | do { | |
d41ecdd0 | 520 | delete fEvent; |
521 | fEvent = new AliRawEvent; | |
522 | fBranch->SetAddress(&fEvent); | |
523 | if (fBranch->GetEntry(fEventIndex+1) <= 0) | |
dd9a70fe | 524 | return kFALSE; |
dd9a70fe | 525 | fEventIndex++; |
526 | } while (!IsEventSelected()); | |
38cf12f3 | 527 | fEventNumber++; |
dd9a70fe | 528 | return Reset(); |
529 | } | |
530 | ||
531 | Bool_t AliRawReaderRoot::RewindEvents() | |
532 | { | |
533 | // go back to the beginning of the root file | |
534 | ||
2da4ef20 | 535 | if (!fBranch) return kFALSE; |
dd9a70fe | 536 | |
537 | fEventIndex = -1; | |
538 | delete fEvent; | |
539 | fEvent = new AliRawEvent; | |
540 | fBranch->SetAddress(&fEvent); | |
38cf12f3 | 541 | fEventNumber = -1; |
dd9a70fe | 542 | return Reset(); |
543 | } | |
544 | ||
636c1780 | 545 | Bool_t AliRawReaderRoot::GotoEvent(Int_t event) |
546 | { | |
547 | // go to a particular event | |
548 | // Uses the absolute event index inside the | |
549 | // raw-data file | |
550 | ||
551 | if (!fBranch) return kFALSE; | |
552 | ||
553 | delete fEvent; | |
554 | fEvent = new AliRawEvent; | |
555 | fBranch->SetAddress(&fEvent); | |
556 | if (fBranch->GetEntry(event) <= 0) | |
557 | return kFALSE; | |
558 | fEventIndex = event; | |
559 | fEventNumber++; | |
560 | return Reset(); | |
561 | } | |
dd9a70fe | 562 | |
b4857df7 | 563 | Int_t AliRawReaderRoot::CheckData() const |
564 | { | |
565 | // check the consistency of the data | |
566 | ||
567 | if (!fEvent) return 0; | |
568 | ||
569 | AliRawEvent* subEvent = NULL; | |
570 | Int_t subEventIndex = 0; | |
94d918a7 | 571 | AliRawEquipment* equipment = NULL; |
572 | Int_t equipmentIndex = 0; | |
b4857df7 | 573 | UChar_t* position = 0; |
574 | UChar_t* end = 0; | |
be50fca2 | 575 | Int_t result = 0; |
b4857df7 | 576 | |
577 | while (kTRUE) { | |
94d918a7 | 578 | // get the first or the next sub event if at the end of an equipment |
579 | if (!subEvent || (equipmentIndex >= subEvent->GetNEquipments())) { | |
b4857df7 | 580 | |
581 | // check for end of event data | |
be50fca2 | 582 | if (subEventIndex >= fEvent->GetNSubEvents()) return result; |
b4857df7 | 583 | subEvent = fEvent->GetSubEvent(subEventIndex++); |
584 | ||
585 | // check the magic word of the sub event | |
be50fca2 | 586 | if (!fSubEvent->GetHeader()->IsValid()) { |
587 | result |= kErrMagic; | |
588 | return result; | |
589 | } | |
b4857df7 | 590 | |
94d918a7 | 591 | equipmentIndex = 0; |
b4857df7 | 592 | } |
593 | ||
94d918a7 | 594 | // get the next equipment and raw data |
595 | equipment = subEvent->GetEquipment(equipmentIndex++); | |
596 | if (!equipment) continue; | |
597 | AliRawData* rawData = equipment->GetRawData(); | |
598 | if (!rawData) continue; | |
599 | position = (UChar_t*) rawData->GetBuffer(); | |
600 | end = ((UChar_t*) rawData->GetBuffer()) + rawData->GetSize(); | |
601 | ||
b4857df7 | 602 | // continue with the next sub event if no data left in the payload |
603 | if (position >= end) continue; | |
604 | ||
18882b3b | 605 | if (fRequireHeader) { |
39f9963f | 606 | // check that there are enough bytes left for the data header |
18882b3b | 607 | if (position + sizeof(AliRawDataHeader) > end) { |
608 | result |= kErrNoDataHeader; | |
609 | continue; | |
610 | } | |
b4857df7 | 611 | |
18882b3b | 612 | // check consistency of data size in the header and in the equipment |
613 | AliRawDataHeader* header = (AliRawDataHeader*) position; | |
299738b9 | 614 | if ((position + header->fSize) != end) { |
806e573c | 615 | if (header->fSize != 0xFFFFFFFF) |
616 | Warning("ReadHeader", | |
617 | "Equipment %d : raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !", | |
618 | equipment->GetEquipmentHeader()->GetId(),header->fSize, end - position); | |
299738b9 | 619 | header->fSize = end - position; |
620 | result |= kErrSize; | |
39f9963f | 621 | } |
be50fca2 | 622 | } |
299738b9 | 623 | position = end; |
b4857df7 | 624 | }; |
fd0de2e2 | 625 | |
626 | return result; | |
b4857df7 | 627 | } |