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16048fcf | 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 | ||
16048fcf | 18 | /////////////////////////////////////////////////////////////////////////////// |
bea6b2a4 | 19 | /// |
20 | /// This is a class for reading raw data from a date file or event. | |
21 | /// | |
22 | /// The AliRawReaderDate is constructed either with a pointer to a | |
23 | /// date event or with a file name and an event number. | |
24 | /// | |
16048fcf | 25 | /////////////////////////////////////////////////////////////////////////////// |
26 | ||
27 | #include "AliRawReaderDate.h" | |
28 | #ifdef ALI_DATE | |
29 | #include "event.h" | |
30 | #endif | |
31 | ||
32 | ClassImp(AliRawReaderDate) | |
33 | ||
34 | ||
35 | AliRawReaderDate::AliRawReaderDate( | |
36 | #ifdef ALI_DATE | |
37 | void* event | |
38 | #else | |
39 | void* /* event */ | |
40 | #endif | |
c946ab02 | 41 | ) : |
39f9963f | 42 | fRequireHeader(kTRUE), |
dd9a70fe | 43 | fFile(NULL), |
c946ab02 | 44 | fEvent(NULL), |
45 | fSubEvent(NULL), | |
46 | fEquipment(NULL), | |
c946ab02 | 47 | fPosition(NULL), |
48 | fEnd(NULL) | |
16048fcf | 49 | { |
50 | // create an object to read digits from the given date event | |
51 | ||
52 | #ifdef ALI_DATE | |
53 | fEvent = (eventHeaderStruct*) event; | |
c946ab02 | 54 | #else |
55 | Fatal("AliRawReaderDate", "this class was compiled without DATE"); | |
56 | #endif | |
57 | } | |
58 | ||
59 | AliRawReaderDate::AliRawReaderDate( | |
60 | #ifdef ALI_DATE | |
61 | const char* fileName, Int_t eventNumber | |
62 | #else | |
63 | const char* /*fileName*/, | |
64 | Int_t /*eventNumber*/ | |
65 | #endif | |
66 | ) : | |
39f9963f | 67 | fRequireHeader(kTRUE), |
dd9a70fe | 68 | fFile(NULL), |
c946ab02 | 69 | fEvent(NULL), |
70 | fSubEvent(NULL), | |
71 | fEquipment(NULL), | |
c946ab02 | 72 | fPosition(NULL), |
73 | fEnd(NULL) | |
74 | { | |
75 | // create an object to read digits from the given date event | |
76 | ||
77 | #ifdef ALI_DATE | |
dd9a70fe | 78 | fFile = fopen(fileName, "rb"); |
79 | if (!fFile) { | |
c946ab02 | 80 | Error("AliRawReaderDate", "could not open file %s", fileName); |
81 | return; | |
82 | } | |
dd9a70fe | 83 | if (eventNumber < 0) return; |
84 | ||
c946ab02 | 85 | eventHeaderStruct header; |
86 | UInt_t headerSize = sizeof(eventHeaderStruct); | |
dd9a70fe | 87 | while (fread(&header, 1, headerSize, fFile) == headerSize) { |
c946ab02 | 88 | if (eventNumber == 0) { |
89 | UChar_t* buffer = new UChar_t[header.eventSize]; | |
dd9a70fe | 90 | fseek(fFile, -headerSize, SEEK_CUR); |
91 | if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) break; | |
c946ab02 | 92 | fEvent = (eventHeaderStruct*) buffer; |
c946ab02 | 93 | break; |
94 | } | |
dd9a70fe | 95 | fseek(fFile, header.eventSize-headerSize, SEEK_CUR); |
c946ab02 | 96 | eventNumber--; |
97 | } | |
c946ab02 | 98 | |
16048fcf | 99 | #else |
100 | Fatal("AliRawReaderDate", "this class was compiled without DATE"); | |
101 | #endif | |
102 | } | |
103 | ||
104 | AliRawReaderDate::AliRawReaderDate(const AliRawReaderDate& rawReader) : | |
c946ab02 | 105 | AliRawReader(rawReader), |
39f9963f | 106 | fRequireHeader(rawReader.fRequireHeader), |
dd9a70fe | 107 | fFile(rawReader.fFile), |
c946ab02 | 108 | fEvent(rawReader.fEvent), |
109 | fSubEvent(rawReader.fSubEvent), | |
110 | fEquipment(rawReader.fEquipment), | |
c946ab02 | 111 | fPosition(rawReader.fPosition), |
112 | fEnd(rawReader.fEnd) | |
113 | ||
16048fcf | 114 | { |
115 | // copy constructor | |
116 | ||
dd9a70fe | 117 | Fatal("AliRawReaderDate", "copy constructor not implemented"); |
16048fcf | 118 | } |
119 | ||
120 | AliRawReaderDate& AliRawReaderDate::operator = (const AliRawReaderDate& | |
dd9a70fe | 121 | /*rawReader*/) |
16048fcf | 122 | { |
123 | // assignment operator | |
124 | ||
dd9a70fe | 125 | Fatal("operator =", "assignment operator not implemented"); |
16048fcf | 126 | return *this; |
127 | } | |
128 | ||
c946ab02 | 129 | AliRawReaderDate::~AliRawReaderDate() |
130 | { | |
131 | // destructor | |
132 | ||
133 | #ifdef ALI_DATE | |
dd9a70fe | 134 | if (fFile) { |
135 | delete[] fEvent; | |
136 | fclose(fFile); | |
137 | } | |
c946ab02 | 138 | #endif |
139 | } | |
140 | ||
16048fcf | 141 | |
142 | UInt_t AliRawReaderDate::GetType() const | |
143 | { | |
144 | // get the type from the event header | |
145 | ||
146 | #ifdef ALI_DATE | |
147 | if (!fEvent) return 0; | |
148 | return fEvent->eventType; | |
149 | #else | |
150 | return 0; | |
151 | #endif | |
152 | } | |
153 | ||
154 | UInt_t AliRawReaderDate::GetRunNumber() const | |
155 | { | |
156 | // get the run number from the event header | |
157 | ||
158 | #ifdef ALI_DATE | |
159 | if (!fEvent) return 0; | |
160 | return fEvent->eventRunNb; | |
161 | #else | |
162 | return 0; | |
163 | #endif | |
164 | } | |
165 | ||
166 | const UInt_t* AliRawReaderDate::GetEventId() const | |
167 | { | |
168 | // get the event id from the event header | |
169 | ||
170 | #ifdef ALI_DATE | |
171 | if (!fEvent) return NULL; | |
172 | return fEvent->eventId; | |
173 | #else | |
174 | return NULL; | |
175 | #endif | |
176 | } | |
177 | ||
178 | const UInt_t* AliRawReaderDate::GetTriggerPattern() const | |
179 | { | |
180 | // get the trigger pattern from the event header | |
181 | ||
182 | #ifdef ALI_DATE | |
183 | if (!fEvent) return NULL; | |
184 | return fEvent->eventTriggerPattern; | |
185 | #else | |
186 | return NULL; | |
187 | #endif | |
188 | } | |
189 | ||
190 | const UInt_t* AliRawReaderDate::GetDetectorPattern() const | |
191 | { | |
192 | // get the detector pattern from the event header | |
193 | ||
194 | #ifdef ALI_DATE | |
195 | if (!fEvent) return NULL; | |
196 | return fEvent->eventDetectorPattern; | |
197 | #else | |
198 | return NULL; | |
199 | #endif | |
200 | } | |
201 | ||
202 | const UInt_t* AliRawReaderDate::GetAttributes() const | |
203 | { | |
204 | // get the type attributes from the event header | |
205 | ||
206 | #ifdef ALI_DATE | |
207 | if (!fEvent) return NULL; | |
208 | return fEvent->eventTypeAttribute; | |
209 | #else | |
210 | return NULL; | |
211 | #endif | |
212 | } | |
213 | ||
c946ab02 | 214 | UInt_t AliRawReaderDate::GetLDCId() const |
215 | { | |
216 | // get the LDC Id from the event header | |
217 | ||
218 | #ifdef ALI_DATE | |
219 | if (!fSubEvent) return 0; | |
220 | return fSubEvent->eventLdcId; | |
221 | #else | |
222 | return 0; | |
223 | #endif | |
224 | } | |
225 | ||
16048fcf | 226 | UInt_t AliRawReaderDate::GetGDCId() const |
227 | { | |
228 | // get the GDC Id from the event header | |
229 | ||
230 | #ifdef ALI_DATE | |
231 | if (!fEvent) return 0; | |
232 | return fEvent->eventGdcId; | |
233 | #else | |
234 | return 0; | |
235 | #endif | |
236 | } | |
237 | ||
238 | ||
c946ab02 | 239 | Int_t AliRawReaderDate::GetEquipmentSize() const |
240 | { | |
241 | // get the size of the equipment | |
242 | ||
243 | #ifdef ALI_DATE | |
244 | if (!fEquipment) return 0; | |
245 | return fEquipment->equipmentSize; | |
246 | #else | |
247 | return 0; | |
248 | #endif | |
249 | } | |
250 | ||
251 | Int_t AliRawReaderDate::GetEquipmentType() const | |
252 | { | |
253 | // get the type from the equipment header | |
254 | ||
255 | #ifdef ALI_DATE | |
256 | if (!fEquipment) return -1; | |
257 | return fEquipment->equipmentType; | |
258 | #else | |
259 | return 0; | |
260 | #endif | |
261 | } | |
262 | ||
263 | Int_t AliRawReaderDate::GetEquipmentId() const | |
264 | { | |
265 | // get the ID from the equipment header | |
266 | ||
267 | #ifdef ALI_DATE | |
268 | if (!fEquipment) return -1; | |
269 | return fEquipment->equipmentId; | |
270 | #else | |
271 | return 0; | |
272 | #endif | |
273 | } | |
274 | ||
275 | const UInt_t* AliRawReaderDate::GetEquipmentAttributes() const | |
276 | { | |
277 | // get the attributes from the equipment header | |
278 | ||
279 | #ifdef ALI_DATE | |
280 | if (!fEquipment) return NULL; | |
281 | return fEquipment->equipmentTypeAttribute; | |
282 | #else | |
283 | return 0; | |
284 | #endif | |
285 | } | |
286 | ||
287 | Int_t AliRawReaderDate::GetEquipmentElementSize() const | |
288 | { | |
289 | // get the basic element size from the equipment header | |
290 | ||
291 | #ifdef ALI_DATE | |
292 | if (!fEquipment) return 0; | |
293 | return fEquipment->equipmentBasicElementSize; | |
294 | #else | |
295 | return 0; | |
296 | #endif | |
297 | } | |
298 | ||
299 | ||
300 | Bool_t AliRawReaderDate::ReadHeader() | |
16048fcf | 301 | { |
39f9963f | 302 | // read a data header at the current position |
303 | // returns kFALSE if the data header could not be read | |
16048fcf | 304 | |
b4857df7 | 305 | fErrorCode = 0; |
306 | ||
16048fcf | 307 | #ifdef ALI_DATE |
921a8308 | 308 | fHeader = NULL; |
16048fcf | 309 | if (!fEvent) return kFALSE; |
b4857df7 | 310 | // check whether there are sub events |
311 | if (fEvent->eventSize <= fEvent->eventHeadSize) return kFALSE; | |
312 | ||
16048fcf | 313 | do { |
b4857df7 | 314 | // skip payload (if event was not selected) |
315 | if (fCount > 0) fPosition += fCount; | |
316 | ||
c946ab02 | 317 | // get the first or the next equipment if at the end of an equipment |
318 | if (!fEquipment || (fPosition >= fEnd)) { | |
921a8308 | 319 | fEquipment = NULL; |
c946ab02 | 320 | |
321 | // get the first or the next sub event if at the end of a sub event | |
322 | if (!fSubEvent || | |
323 | (fPosition >= ((UChar_t*)fSubEvent) + fSubEvent->eventSize)) { | |
324 | ||
325 | // check for end of event data | |
326 | if (fPosition >= ((UChar_t*)fEvent)+fEvent->eventSize) return kFALSE; | |
327 | if (fSubEvent) { | |
328 | fSubEvent = (eventHeaderStruct*) (((UChar_t*)fSubEvent) + | |
329 | fSubEvent->eventSize); | |
330 | } else { | |
331 | fSubEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + | |
332 | fEvent->eventHeadSize); | |
333 | } | |
334 | ||
335 | // check the magic word of the sub event | |
336 | if (fSubEvent->eventMagic != EVENT_MAGIC_NUMBER) { | |
337 | Error("ReadHeader", "wrong magic number in sub event!\n" | |
338 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
339 | fSubEvent->eventRunNb, | |
340 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
341 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
342 | fErrorCode = kErrMagic; | |
343 | return kFALSE; | |
344 | } | |
345 | ||
921a8308 | 346 | // continue if no data in the subevent |
347 | if (fSubEvent->eventSize == fSubEvent->eventHeadSize) { | |
348 | fPosition = fEnd = ((UChar_t*)fSubEvent) + fSubEvent->eventSize; | |
349 | fCount = 0; | |
350 | continue; | |
351 | } | |
352 | ||
c946ab02 | 353 | fEquipment = (equipmentHeaderStruct*) |
354 | (((UChar_t*)fSubEvent) + fSubEvent->eventHeadSize); | |
b4857df7 | 355 | |
16048fcf | 356 | } else { |
c946ab02 | 357 | fEquipment = (equipmentHeaderStruct*) fEnd; |
b4857df7 | 358 | } |
359 | ||
16048fcf | 360 | fCount = 0; |
c946ab02 | 361 | fPosition = ((UChar_t*)fEquipment) + sizeof(equipmentHeaderStruct); |
921a8308 | 362 | if (fSubEvent->eventVersion <= 0x00030002) { |
363 | fEnd = fPosition + fEquipment->equipmentSize; | |
364 | } else { | |
365 | fEnd = ((UChar_t*)fEquipment) + fEquipment->equipmentSize; | |
366 | } | |
16048fcf | 367 | } |
b4857df7 | 368 | |
369 | // continue with the next sub event if no data left in the payload | |
370 | if (fPosition >= fEnd) continue; | |
371 | ||
39f9963f | 372 | if (fRequireHeader) { |
373 | // check that there are enough bytes left for the data header | |
374 | if (fPosition + sizeof(AliRawDataHeader) > fEnd) { | |
375 | Error("ReadHeader", "could not read data header data!"); | |
c946ab02 | 376 | Warning("ReadHeader", "skipping %d bytes\n" |
377 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
378 | fEnd - fPosition, fSubEvent->eventRunNb, | |
379 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
380 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
381 | fCount = 0; | |
382 | fPosition = fEnd; | |
39f9963f | 383 | fErrorCode = kErrNoDataHeader; |
c946ab02 | 384 | continue; |
385 | } | |
b4857df7 | 386 | |
39f9963f | 387 | // "read" the data header |
388 | fHeader = (AliRawDataHeader*) fPosition; | |
389 | fPosition += sizeof(AliRawDataHeader); | |
72dd1d4f | 390 | } |
c946ab02 | 391 | |
39f9963f | 392 | if (fHeader && (fHeader->fSize != 0xFFFFFFFF)) { |
393 | fCount = fHeader->fSize - sizeof(AliRawDataHeader); | |
c946ab02 | 394 | |
39f9963f | 395 | // check consistency of data size in the header and in the sub event |
c946ab02 | 396 | if (fPosition + fCount > fEnd) { |
39f9963f | 397 | Error("ReadHeader", "size in data header exceeds event size!"); |
c946ab02 | 398 | Warning("ReadHeader", "skipping %d bytes\n" |
399 | " run: %d event: %d %d LDC: %d GDC: %d\n", | |
400 | fEnd - fPosition, fSubEvent->eventRunNb, | |
401 | fSubEvent->eventId[0], fSubEvent->eventId[1], | |
402 | fSubEvent->eventLdcId, fSubEvent->eventGdcId); | |
403 | fCount = 0; | |
404 | fPosition = fEnd; | |
405 | fErrorCode = kErrSize; | |
406 | continue; | |
407 | } | |
408 | ||
409 | } else { | |
410 | fCount = fEnd - fPosition; | |
16048fcf | 411 | } |
b4857df7 | 412 | |
921a8308 | 413 | } while (!fEquipment || !IsSelected()); |
b4857df7 | 414 | |
16048fcf | 415 | return kTRUE; |
416 | #else | |
417 | return kFALSE; | |
418 | #endif | |
419 | } | |
420 | ||
421 | Bool_t AliRawReaderDate::ReadNextData(UChar_t*& data) | |
422 | { | |
423 | // reads the next payload at the current position | |
424 | // returns kFALSE if the data could not be read | |
425 | ||
b4857df7 | 426 | fErrorCode = 0; |
16048fcf | 427 | while (fCount == 0) { |
c946ab02 | 428 | if (!ReadHeader()) return kFALSE; |
16048fcf | 429 | } |
430 | data = fPosition; | |
431 | fPosition += fCount; | |
432 | fCount = 0; | |
433 | return kTRUE; | |
434 | } | |
435 | ||
436 | Bool_t AliRawReaderDate::ReadNext(UChar_t* data, Int_t size) | |
437 | { | |
438 | // reads the next block of data at the current position | |
439 | // returns kFALSE if the data could not be read | |
440 | ||
b4857df7 | 441 | fErrorCode = 0; |
16048fcf | 442 | if (fPosition + size > fEnd) { |
443 | Error("ReadNext", "could not read data!"); | |
b4857df7 | 444 | fErrorCode = kErrOutOfBounds; |
16048fcf | 445 | return kFALSE; |
446 | } | |
447 | memcpy(data, fPosition, size); | |
448 | fPosition += size; | |
449 | fCount -= size; | |
450 | return kTRUE; | |
451 | } | |
452 | ||
453 | ||
454 | Bool_t AliRawReaderDate::Reset() | |
455 | { | |
456 | // reset the current position to the beginning of the event | |
457 | ||
458 | #ifdef ALI_DATE | |
459 | fSubEvent = NULL; | |
460 | #endif | |
461 | fCount = 0; | |
462 | fPosition = fEnd = NULL; | |
463 | return kTRUE; | |
464 | } | |
b4857df7 | 465 | |
466 | ||
dd9a70fe | 467 | Bool_t AliRawReaderDate::NextEvent() |
468 | { | |
469 | // go to the next event in the date file | |
470 | ||
5bec8712 | 471 | #ifdef ALI_DATE |
dd9a70fe | 472 | if (!fFile) return kFALSE; |
473 | ||
474 | eventHeaderStruct header; | |
475 | UInt_t headerSize = sizeof(eventHeaderStruct); | |
476 | if (fEvent) delete[] fEvent; | |
477 | fEvent = &header; | |
478 | ||
479 | while (fread(&header, 1, headerSize, fFile) == headerSize) { | |
480 | if (!IsEventSelected()) { | |
481 | fseek(fFile, header.eventSize-headerSize, SEEK_CUR); | |
482 | continue; | |
483 | } | |
484 | UChar_t* buffer = new UChar_t[header.eventSize]; | |
485 | fseek(fFile, -headerSize, SEEK_CUR); | |
486 | if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) { | |
487 | Error("NextEvent", "could not read event from file"); | |
488 | delete[] buffer; | |
489 | break; | |
490 | } | |
491 | fEvent = (eventHeaderStruct*) buffer; | |
492 | return kTRUE; | |
493 | }; | |
494 | ||
495 | fEvent = NULL; | |
bba5b21b | 496 | #endif |
5bec8712 | 497 | |
dd9a70fe | 498 | return kFALSE; |
499 | } | |
500 | ||
501 | Bool_t AliRawReaderDate::RewindEvents() | |
502 | { | |
503 | // go back to the beginning of the date file | |
504 | ||
505 | if (!fFile) return kFALSE; | |
506 | ||
507 | fseek(fFile, 0, SEEK_SET); | |
508 | return Reset(); | |
509 | } | |
510 | ||
511 | ||
b4857df7 | 512 | Int_t AliRawReaderDate::CheckData() const |
513 | { | |
514 | // check the consistency of the data | |
515 | ||
516 | #ifdef ALI_DATE | |
517 | if (!fEvent) return 0; | |
518 | // check whether there are sub events | |
519 | if (fEvent->eventSize <= fEvent->eventHeadSize) return 0; | |
520 | ||
521 | eventHeaderStruct* subEvent = NULL; | |
522 | UChar_t* position = 0; | |
523 | UChar_t* end = 0; | |
be50fca2 | 524 | Int_t result = 0; |
b4857df7 | 525 | |
526 | while (kTRUE) { | |
527 | // get the first or the next sub event if at the end of a sub event | |
528 | if (!subEvent || (position >= end)) { | |
529 | ||
530 | // check for end of event data | |
be50fca2 | 531 | if (position >= ((UChar_t*)fEvent)+fEvent->eventSize) return result; |
b4857df7 | 532 | if (subEvent) { |
533 | subEvent = (eventHeaderStruct*) (((UChar_t*)subEvent) + | |
534 | subEvent->eventSize); | |
535 | } else { | |
536 | subEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + | |
537 | fEvent->eventHeadSize); | |
538 | } | |
539 | ||
540 | // check the magic word of the sub event | |
be50fca2 | 541 | if (subEvent->eventMagic != EVENT_MAGIC_NUMBER) { |
542 | result |= kErrMagic; | |
543 | return result; | |
544 | } | |
b4857df7 | 545 | |
546 | position = ((UChar_t*)subEvent) + subEvent->eventHeadSize + | |
547 | sizeof(equipmentHeaderStruct); | |
548 | end = ((UChar_t*)subEvent) + subEvent->eventSize; | |
549 | } | |
550 | ||
551 | // continue with the next sub event if no data left in the payload | |
552 | if (position >= end) continue; | |
553 | ||
39f9963f | 554 | // check that there are enough bytes left for the data header |
555 | if (position + sizeof(AliRawDataHeader) > end) { | |
556 | result |= kErrNoDataHeader; | |
be50fca2 | 557 | position = end; |
558 | continue; | |
559 | } | |
b4857df7 | 560 | |
39f9963f | 561 | // check consistency of data size in the data header and in the sub event |
562 | AliRawDataHeader* header = (AliRawDataHeader*) position; | |
086fa880 | 563 | if (header->fSize != 0xFFFFFFFF) { |
39f9963f | 564 | if (position + header->fSize > end) { |
565 | result |= kErrSize; | |
566 | position = end; | |
567 | } else { | |
568 | position += header->fSize; | |
569 | } | |
570 | } else { | |
be50fca2 | 571 | position = end; |
be50fca2 | 572 | } |
b4857df7 | 573 | }; |
574 | ||
575 | #endif | |
576 | return 0; | |
577 | } |