Fix in raw data headers processing in AliMDC. Removing wrong equipment size in versio...
[u/mrichter/AliRoot.git] / RAW / AliMDC.cxx
CommitLineData
a197a4ce 1// @(#)alimdc:$Name$:$Id$
2// Author: Fons Rademakers 26/11/99
3// Updated: Dario Favretto 15/04/2003
4
5/**************************************************************************
6 * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
7 * *
8 * Author: The ALICE Off-line Project. *
9 * Contributors are mentioned in the code where appropriate. *
10 * *
11 * Permission to use, copy, modify and distribute this software and its *
12 * documentation strictly for non-commercial purposes is hereby granted *
13 * without fee, provided that the above copyright notice appears in all *
14 * copies and that both the copyright notice and this permission notice *
15 * appear in the supporting documentation. The authors make no claims *
16 * about the suitability of this software for any purpose. It is *
17 * provided "as is" without express or implied warranty. *
18 **************************************************************************/
19
8c49c5a5 20/* $Id$ */
21
a197a4ce 22//////////////////////////////////////////////////////////////////////////
23// //
24// AliMDC //
25// //
26// Set of classes defining the ALICE RAW event format. The AliRawEvent //
27// class defines a RAW event. It consists of an AliEventHeader object //
28// an AliEquipmentHeader object, an AliRawData object and an array of //
29// sub-events, themselves also being AliRawEvents. The number of //
30// sub-events depends on the number of DATE LDC's. //
31// The AliRawEvent objects are written to a ROOT file using different //
32// technologies, i.e. to local disk via AliRawDB or via rfiod using //
33// AliRawRFIODB or via rootd using AliRawRootdDB or to CASTOR via //
34// rootd using AliRawCastorDB (and for performance testing there is //
35// also AliRawNullDB). //
36// The AliRunDB class provides the interface to the run and file //
37// catalogues (AliEn or plain MySQL). //
38// The AliStats class provides statics information that is added as //
39// a single keyed object to each raw file. //
40// The AliTagDB provides an interface to a TAG database. //
41// The AliMDC class is usid by the "alimdc" stand-alone program //
42// that reads data directly from DATE. //
43// //
44//////////////////////////////////////////////////////////////////////////
45
8c49c5a5 46#include <sys/types.h>
47#include <sys/stat.h>
48
a197a4ce 49#include <errno.h>
50
51#include <TSystem.h>
52#include <TError.h>
53#include <TStopwatch.h>
54
55#ifdef ALI_DATE
56#include "event.h"
57#endif
58#ifdef USE_EB
59#include "libDateEb.h"
60#endif
61
a109e73e 62#ifdef USE_HLT
63#include <AliL3StandardIncludes.h>
64#include "AliL3Logging.h"
65#include <AliL3Transform.h>
66#include "AliRawReaderRoot.h"
67#include <AliL3Hough.h>
68#include <AliESD.h>
69#endif
70
a197a4ce 71#include "AliRawEvent.h"
72#include "AliRawEventHeader.h"
94d918a7 73#include "AliRawEquipment.h"
a197a4ce 74#include "AliRawEquipmentHeader.h"
75#include "AliRawData.h"
76#include "AliStats.h"
77#include "AliRawDB.h"
78#include "AliRawRFIODB.h"
79#include "AliRawCastorDB.h"
80#include "AliRawRootdDB.h"
81#include "AliRawNullDB.h"
82#include "AliTagDB.h"
83
84#include "AliMDC.h"
85
86
87ClassImp(AliMDC)
88
89
90#define ALIDEBUG(level) \
91 if (AliMDC::Instance() && (AliMDC::Instance()->GetDebugLevel() >= (level)))
92
93
94// Fixed file system locations for the different DB's
95#ifdef USE_RDM
96const char* const AliMDC::fgkFifo = "/tmp/alimdc.fifo";
97const char* const AliMDC::fgkRawDBFS[2] = { "/tmp/mdc1", "/tmp/mdc2" };
98const char* const AliMDC::fgkTagDBFS = "/tmp/mdc1/tags";
99const char* const AliMDC::fgkRunDBFS = "/tmp/mdc1/meta";
100const char* const AliMDC::fgkRFIOFS = "rfio:/castor/cern.ch/user/r/rdm";
101const char* const AliMDC::fgkCastorFS = "castor:/castor/cern.ch/user/r/rdm";
102const char* const AliMDC::fgkRootdFS = "root://localhost//tmp/mdc1";
103const char* const AliMDC::fgkAlienHost = "alien://aliens7.cern.ch:15000/?direct";
104const char* const AliMDC::fgkAlienDir = "/alice_mdc/DC";
105#else
106const char* const AliMDC::fgkFifo = "/tmp/alimdc.fifo";
107const char* const AliMDC::fgkRawDBFS[2] = { "/data1/mdc", "/data2/mdc" };
108const char* const AliMDC::fgkTagDBFS = "/data1/mdc/tags";
109const char* const AliMDC::fgkRunDBFS = "/data1/mdc/meta";
110const char* const AliMDC::fgkRFIOFS = "rfio:/castor/cern.ch/lcg/dc5";
111const char* const AliMDC::fgkCastorFS = "castor:/castor/cern.ch/lcg/dc5";
112const char* const AliMDC::fgkRootdFS = "root://localhost//tmp/mdc1";
113const char* const AliMDC::fgkAlienHost = "alien://aliens7.cern.ch:15000/?direct";
114const char* const AliMDC::fgkAlienDir = "/alice_mdc/DC";
115#endif
116
117// Maximum size of tag db files
118const Double_t AliMDC::fgkMaxTagFileSize = 2.5e8; // 250MB
119
120Bool_t AliMDC::fgDeleteFiles = kFALSE;
121AliMDC* AliMDC::fgInstance = NULL;
122
123
124//______________________________________________________________________________
125AliMDC::AliMDC(Int_t fd, Int_t compress, Double_t maxFileSize, Bool_t useFilter,
126 EWriteMode mode, Bool_t useLoop, Bool_t delFiles)
127{
128 // Create MDC processor object.
129
130 fFd = fd;
131 fCompress = compress;
132 fMaxFileSize = maxFileSize;
133 fUseFilter = useFilter;
134 fWriteMode = mode;
135 fUseLoop = useLoop;
136 fUseFifo = kFALSE;
137 fUseEb = kFALSE;
138 fStopLoop = kFALSE;
139 fNumEvents = 0;
140 fDebugLevel = 0;
141 fgDeleteFiles = delFiles;
142
143 if (fFd == -1) {
144#ifdef USE_EB
145 if (!ebRegister()) {
146 Error("AliMDC", "cannot register with the event builder (%s)",
147 ebGetLastError());
148 return;
149 }
150 fUseEb = kTRUE;
151#else
152 if ((mkfifo(fgkFifo, 0644) < 0) && (errno != EEXIST)) {
153 Error("AliMDC", "cannot create fifo %s", fgkFifo);
154 return;
155 }
156 if ((chmod(fgkFifo, 0666) == -1) && (errno != EPERM)) {
157 Error("AliMDC", "cannot change permission of fifo %s", fgkFifo);
158 return;
159 }
160 if ((fFd = open(fgkFifo, O_RDONLY)) == -1) {
161 Error("AliMDC", "cannot open input file %s", fgkFifo);
162 return;
163 }
164 fUseFifo = kTRUE;
165#endif
166 fUseLoop = kFALSE;
167 }
168
169 printf("<AliMDC::AliMDC>: input = %s, rawdb size = %f, filter = %s, "
170 "looping = %s, compression = %d, delete files = %s",
171 fUseFifo ? "fifo" : (fUseEb ? "eb" : "file"), fMaxFileSize,
172 fUseFilter ? "on" : "off", fUseLoop ? "yes" : "no", fCompress,
173 fgDeleteFiles ? "yes" : "no");
174 if (fWriteMode == kRFIO)
175 printf(", use RFIO\n");
176 else if (fWriteMode == kROOTD)
177 printf(", use rootd\n");
178 else if (fWriteMode == kCASTOR)
179 printf(", use CASTOR/rootd\n");
180 else if (fWriteMode == kDEVNULL)
181 printf(", write raw data to /dev/null\n");
182 else
183 printf("\n");
184
185 // install SIGUSR1 handler to allow clean interrupts
186 gSystem->AddSignalHandler(new AliMDCInterruptHandler(this));
187
188 fgInstance = this;
189}
190
191//______________________________________________________________________________
192AliMDC::AliMDC(const AliMDC& mdc): TObject(mdc)
193{
194// copy constructor
195
196 Fatal("AliMDC", "copy constructor not implemented");
197}
198
199//______________________________________________________________________________
200AliMDC& AliMDC::operator = (const AliMDC& /*mdc*/)
201{
202// assignment operator
203
204 Fatal("operator =", "assignment operator not implemented");
205 return *this;
206}
207
208//______________________________________________________________________________
209Int_t AliMDC::Run()
210{
211 // Run the MDC processor. Read from the input stream and only return
212 // when the input gave and EOF or a fatal error occured. On success 0
213 // is returned, 1 in case of a fatality.
214
215 TStopwatch timer;
216 Int_t status;
217
218 // Make sure needed directories exist
219 const char *dirs[4];
220 dirs[0] = fgkRawDBFS[0];
221 dirs[1] = fgkRawDBFS[1];
222 dirs[2] = fgkTagDBFS;
223 dirs[3] = fgkRunDBFS;
224 for (int idir = 0; idir < 4; idir++) {
225 gSystem->ResetErrno();
226 gSystem->MakeDirectory(dirs[idir]);
227 if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
228 SysError("Run", "mkdir %s", dirs[idir]);
229 return 1;
230 }
231 }
232
233 // Used for statistics
234 timer.Start();
235 Double_t told = 0, tnew = 0;
236 Float_t chunkSize = fMaxFileSize/100, nextChunk = chunkSize;
237
238 // Event object used to store event data.
239 AliRawEvent *event = new AliRawEvent;
a109e73e 240#ifdef USE_HLT
241 //Init HLT
242 AliL3Log::fgLevel=AliL3Log::kError;
243 ALIDEBUG(1)
244 AliL3Log::fgLevel=AliL3Log::kWarning;
245 ALIDEBUG(2)
246 AliL3Log::fgLevel=AliL3Log::kWarning;
247 ALIDEBUG(3)
248 AliL3Log::fgLevel=AliL3Log::kNone;
249
250 if (!AliL3Transform::Init("./", kFALSE)) {
251 Error("Run","HLT initialization failed!");
252 return 1;
253 }
254
255 AliESD *esd = new AliESD;
256#endif
a197a4ce 257
258 // Create new raw DB.
259 AliRawDB *rawdb;
260 if (fWriteMode == kRFIO)
a109e73e 261 rawdb = new AliRawRFIODB(event, esd, fMaxFileSize, fCompress);
a197a4ce 262 else if (fWriteMode == kROOTD)
a109e73e 263 rawdb = new AliRawRootdDB(event, esd, fMaxFileSize, fCompress);
a197a4ce 264 else if (fWriteMode == kCASTOR)
a109e73e 265 rawdb = new AliRawCastorDB(event, esd, fMaxFileSize, fCompress);
a197a4ce 266 else if (fWriteMode == kDEVNULL)
a109e73e 267 rawdb = new AliRawNullDB(event, esd, fMaxFileSize, fCompress);
a197a4ce 268 else
a109e73e 269 rawdb = new AliRawDB(event, esd, fMaxFileSize, fCompress);
a197a4ce 270
271 if (rawdb->IsZombie()) return 1;
272 printf("Filling raw DB %s\n", rawdb->GetDBName());
273
274 // Create new tag DB.
275 AliTagDB *tagdb = 0;
276#if 0
277 // no tagdb for the time being to get maximum speed
278 if (fWriteMode == fgkDEVNULL)
279 tagdb = new AliTagNullDB(event->GetHeader(), fgkMaxTagFileSize);
280 else
281 tagdb = new AliTagDB(event->GetHeader(), fgkMaxTagFileSize);
282 if (tagdb->IsZombie())
283 tagdb = 0;
284 else
285 printf("Filling tag DB %s\n", tagdb->GetDBName());
286#endif
287
288 // Create AliStats object
289 AliStats *stats = new AliStats(rawdb->GetDBName(), fCompress, fUseFilter);
290
291 // Shortcut for easy header access
292 AliRawEventHeader &header = *event->GetHeader();
293
294 // Process input stream
295#ifdef USE_EB
296 Int_t eorFlag = 0;
297 while (!(eorFlag = ebEor())) {
298 struct iovec *ebvec;
299 if ((ebvec = ebGetNextEvent()) == (void *)-1) {
300 Error("Run", "error getting next event (%s)", ebGetLastError());
301 break;
302 }
303 if (ebvec == 0) {
304 // no event, sleep for 1 second and try again
305 gSystem->Sleep(1000);
306 continue;
307 }
308 char *ebdata = (char *) ebvec[0].iov_base;
309#else
310 while (1) {
311 char *ebdata = 0;
312#endif
313
314 // Read event header
315 if ((status = ReadHeader(header, ebdata)) != header.HeaderSize()) {
316 if (status == 0) {
317 if (fUseLoop) {
318#ifndef USE_EB
319 ::lseek(fFd, 0, SEEK_SET);
320#endif
321 continue;
322 }
323 printf("<AliMDC::Run>: EOF, processed %d events\n", fNumEvents);
324 break;
325 }
326 return 1;
327 }
328 ALIDEBUG(3)
329 header.Dump();
330
331 // If we were in looping mode stop directly after a SIGUSR1 signal
332 if (StopLoop()) {
333 Info("Run", "Stopping loop, processed %d events", fNumEvents);
334 break;
335 }
336
337 // Check if event has any hard track flagged
338 Bool_t callFilter = kFALSE;
a109e73e 339 if (fUseFilter)
340 callFilter = kTRUE;
a197a4ce 341
342 // Check event type and skip "Start of Run", "End of Run",
343 // "Start of Run Files" and "End of Run Files"
344 switch (header.GetType()) {
345 case AliRawEventHeader::kStartOfRun:
346 case AliRawEventHeader::kEndOfRun:
347 case AliRawEventHeader::kStartOfRunFiles:
348 case AliRawEventHeader::kEndOfRunFiles:
349 {
350 Int_t skip = header.GetEventSize() - header.HeaderSize();
351#ifndef USE_EB
352 ::lseek(fFd, skip, SEEK_CUR);
353#endif
354 ALIDEBUG(1)
355 Info("Run", "Skipping %s (%d bytes)", header.GetTypeName(), skip);
356 continue;
357 }
358 default:
359 ALIDEBUG(1) {
360 Int_t s = header.GetEventSize() - header.HeaderSize();
361 Info("Run", "Processing %s (%d bytes)", header.GetTypeName(), s);
362 }
363 }
364
365 // Amount of data left to read for this event
366 Int_t toRead = header.GetEventSize() - header.HeaderSize();
367
368 // If there is less data for this event than the next sub-event
369 // header, something is wrong. Skip to next event...
370 if (toRead < header.HeaderSize()) {
371 ALIDEBUG(1) {
372 Warning("Run",
373 "header size (%d) exceeds number of bytes to read (%d)\n",
374 header.HeaderSize(), toRead);
375 header.Dump();
376 }
377 if ((status = DumpEvent(toRead)) != toRead) {
378 if (status == 0)
379 break;
380 return 1;
381 }
382 Error("Run", "discarding event %d (too little data for header)", fNumEvents);
383 continue;
384 }
385
386 // Loop over all sub-events... (LDCs)
387 Int_t nsub = 1;
388 while (toRead > 0) {
389#ifdef USE_EB
390 ebdata = (char *)ebvec[nsub].iov_base;
391#endif
392
393 ALIDEBUG(1)
394 Info("Run", "reading LDC %d", nsub);
395
396 AliRawEvent *subEvent = event->NextSubEvent();
397
398 // Read sub-event header
399 AliRawEventHeader &subHeader = *subEvent->GetHeader();
400 if ((status = ReadHeader(subHeader, ebdata)) != subHeader.HeaderSize()) {
401 if (status == 0) {
402 Error("Run", "unexpected EOF reading sub-event header");
403 break;
404 }
405 return 1;
406 }
407
408 ALIDEBUG(3)
409 subHeader.Dump();
410
411 toRead -= subHeader.HeaderSize();
412
413#ifdef USE_EB
414 ebdata = (char *)(ebvec[nsub].iov_base) + subHeader.HeaderSize();
415#endif
416
417 Int_t rawSize = subHeader.GetEventSize() - subHeader.HeaderSize();
418
a197a4ce 419 // Make sure raw data less than left over bytes for current event
420 if (rawSize > toRead) {
421 ALIDEBUG(1) {
94d918a7 422 Warning("Run", "raw data size (%d) exceeds number of "
423 "bytes to read (%d)\n", rawSize, toRead);
424 subHeader.Dump();
a197a4ce 425 }
426 if ((status = DumpEvent(toRead)) != toRead) {
427 if (status == 0)
428 break;
429 return 1;
430 }
431 Error("Run", "discarding event %d (too much data)", fNumEvents);
432 continue;
433 }
434
94d918a7 435 // Read Equipment Headers (in case of physics or calibration event)
436 if (header.GetType() == AliRawEventHeader::kPhysicsEvent ||
437 header.GetType() == AliRawEventHeader::kCalibrationEvent) {
438 while (rawSize > 0) {
439 AliRawEquipment &equipment = *subEvent->NextEquipment();
440 AliRawEquipmentHeader &equipmentHeader =
441 *equipment.GetEquipmentHeader();
442 Int_t equipHeaderSize = equipmentHeader.HeaderSize();
443 if ((status = ReadEquipmentHeader(equipmentHeader, header.DataIsSwapped(),
444 ebdata)) != equipHeaderSize) {
445 if (status == 0) {
446 Error("Run", "unexpected EOF reading equipment-header");
447 break;
448 }
449 return 1;
450 }
451 toRead -= equipHeaderSize;
452 rawSize -= equipHeaderSize;
453#ifdef USE_EB
454 ebdata = (char *)(ebvec[nsub].iov_base) +
455 subHeader.HeaderSize() + equipHeaderSize;
456#endif
457
458 // Read equipment raw data
459 AliRawData &subRaw = *equipment.GetRawData();
145359f0 460
461 Int_t eqSize = equipmentHeader.GetEquipmentSize() -
462 equipHeaderSize;
94d918a7 463 if ((status = ReadRawData(subRaw, eqSize, ebdata)) != eqSize) {
464 if (status == 0) {
465 Error("Run", "unexpected EOF reading sub-event raw data");
466 break;
467 }
468 return 1;
469 }
470 toRead -= eqSize;
471 rawSize -= eqSize;
a197a4ce 472
94d918a7 473 }
474
475 } else { // Read only raw data but no equipment header
476 AliRawEquipment &equipment = *subEvent->NextEquipment();
477 AliRawData &subRaw = *equipment.GetRawData();
478 if ((status = ReadRawData(subRaw, rawSize, ebdata)) != rawSize) {
479 if (status == 0) {
480 Error("Run", "unexpected EOF reading sub-event raw data");
481 break;
482 }
483 return 1;
a197a4ce 484 }
94d918a7 485 toRead -= rawSize;
486
94d918a7 487 }
a197a4ce 488
a197a4ce 489 nsub++;
490 }
491
a109e73e 492 //HLT
493 if (callFilter) {
494#ifdef ALI_DATE
495 if(header.GetType() == AliRawEventHeader::kPhysicsEvent ||
496 header.GetType() == AliRawEventHeader::kCalibrationEvent)
497 Filter(
498#ifdef USE_HLT
499 event,esd
500#endif
501 );
502#endif
503 }
504
a197a4ce 505 // Set stat info for first event of this file
506 if (rawdb->GetEvents() == 0)
507 stats->SetFirstId(header.GetRunNumber(), header.GetEventInRun());
508
509 // Store raw event in tree
510 rawdb->Fill();
511
512 // Store header in tree
513 if (tagdb) tagdb->Fill();
514
515 fNumEvents++;
516
517 if (!(fNumEvents%10))
518 printf("Processed event %d (%d)\n", fNumEvents, rawdb->GetEvents());
519
520 // Filling time statistics
521 if (rawdb->GetBytesWritten() > nextChunk) {
522 tnew = timer.RealTime();
523 stats->Fill(tnew-told);
524 told = tnew;
525 timer.Continue();
526 nextChunk += chunkSize;
527 }
528
529 // Check size of raw db. If bigger than maxFileSize, close file
530 // and continue with new file.
531 if (rawdb->FileFull()) {
532
533 printf("Written raw DB at a rate of %.1f MB/s\n",
534 rawdb->GetBytesWritten() / timer.RealTime() / 1000000.);
535
536 // Write stats object to raw db, run db, MySQL and AliEn
537 stats->WriteToDB(rawdb);
538 delete stats;
539
540 if (!rawdb->NextFile()) {
541 Error("Run", "error opening next raw data file");
542 return 1;
543 }
544
545 printf("Filling raw DB %s\n", rawdb->GetDBName());
546 stats = new AliStats(rawdb->GetDBName(), fCompress, fUseFilter);
547
548 timer.Start();
549 told = 0, tnew = 0;
550 nextChunk = chunkSize;
551 }
552
553 // Check size of tag db
554 if (tagdb && tagdb->FileFull()) {
555 if (!tagdb->NextFile())
556 tagdb = 0;
557 else
558 printf("Filling tag DB %s\n", tagdb->GetDBName());
559 }
560
561 // Make top event object ready for next event data
562 //printf("Event %d has %d sub-events\n", fNumEvents, event->GetNSubEvents());
563 event->Reset();
a109e73e 564#ifdef USE_HLT
565 // Clean up HLT ESD for the next event
566 // Probably we could add esd->Reset() method to AliESD?
567 esd->Reset();
568#endif
a197a4ce 569#ifdef USE_EB
570 if (!ebReleaseEvent(ebvec)) {
571 Error("Run", "problem releasing event (%s)", ebGetLastError());
572 break;
573 }
574#endif
575 }
576
577 printf("Written raw DB at a rate of %.1f MB/s\n",
578 rawdb->GetBytesWritten() / timer.RealTime() / 1000000.);
579
580 // Write stats to raw db and run db and delete stats object
581 stats->WriteToDB(rawdb);
582 delete stats;
583
584 // Close the raw DB
585 delete rawdb;
586
587 // Close the tag DB
588 delete tagdb;
589
590 // Close input source
591 close(fFd);
592
593#if 0
594 // Cleanup fifo
595 if (fUseFifo && ::unlink(fgkFifo) == -1) {
596 SysError("Run", "unlink");
597 return 1;
598 }
599#endif
600
601#ifdef USE_EB
602 // Print eor flag
603 if (eorFlag) {
604 Info("Run", "event builder reported end of run (%d)", eorFlag);
605 }
606#endif
607
608 return 0;
609}
610
611//______________________________________________________________________________
612Int_t AliMDC::Read(void *buffer, Int_t length)
613{
614 // Read exactly length bytes into buffer. Returns number of bytes
615 // received, returns -1 in case of error and 0 for EOF.
616
617 errno = 0;
618
619 if (fFd < 0) return -1;
620
621 Int_t n, nrecv = 0;
622 char *buf = (char *)buffer;
623
624 for (n = 0; n < length; n += nrecv) {
625 if ((nrecv = read(fFd, buf+n, length-n)) <= 0) {
626 if (nrecv == 0)
627 break; // EOF
628 if (errno != EINTR)
629 SysError("Read", "read");
630 return -1;
631 }
632 }
633 return n;
634}
635
636//______________________________________________________________________________
637Int_t AliMDC::ReadHeader(AliRawEventHeader &header, void *eb)
638{
639 // Read header info from DATE data stream. Returns bytes read (i.e.
640 // AliRawEventHeader::HeaderSize()), -1 in case of error and 0 for EOF.
641
642 Int_t nrecv;
643
644 if (eb) {
645 // read from event builder memory area
646 memcpy(header.HeaderBegin(), eb, header.HeaderSize());
647 nrecv = header.HeaderSize();
648 } else {
649 // read from fifo or file
650 if ((nrecv = Read(header.HeaderBegin(), header.HeaderSize())) !=
651 header.HeaderSize()) {
652 if (nrecv == 0)
653 return 0;
654 return -1;
655 }
656 }
657
658 // Swap header data if needed
659 if (header.IsSwapped())
660 header.Swap();
661
662 // Is header valid...
663 if (!header.IsValid()) {
664 Error("ReadHeader", "invalid header format");
665 // try recovery... how?
666 return -1;
667 }
668 if (header.GetEventSize() < (UInt_t)header.HeaderSize()) {
669 Error("ReadHeader", "invalid header size");
670 // try recovery... how?
671 return -1;
672 }
673
674 return nrecv;
675}
676
677//______________________________________________________________________________
678Int_t AliMDC::ReadEquipmentHeader(AliRawEquipmentHeader &header,
679 Bool_t isSwapped, void *eb)
680{
681 // Read equipment header info from DATE data stream. Returns bytes read
682 // (i.e. AliRawEquipmentHeader::HeaderSize()), -1 in case of error and
683 // 0 for EOF. If isSwapped is kTRUE the event data is byte swapped
684 // and we will swap the header to host format.
685
686 Int_t nrecv;
687
688 if (eb) {
689 // read from event builder memory area
690 memcpy(header.HeaderBegin(), eb, header.HeaderSize());
691 nrecv = header.HeaderSize();
692 } else {
693 // read from fifo or file
694 if ((nrecv = Read(header.HeaderBegin(), header.HeaderSize())) !=
695 header.HeaderSize()) {
696 if (nrecv == 0)
697 return 0;
698 return -1;
699 }
700 }
701
702 // Swap equipment header data if needed
703 if (isSwapped)
704 header.Swap();
705
706 if (header.GetEquipmentSize() < (UInt_t)header.HeaderSize()) {
707 Error("ReadEquipmentHeader", "invalid equipment header size");
708 // try recovery... how?
709 return -1;
710 }
711
712 return nrecv;
713}
714
715//______________________________________________________________________________
716Int_t AliMDC::ReadRawData(AliRawData &raw, Int_t size, void *eb)
717{
718 // Read raw data from DATE data stream. Returns bytes read (i.e.
719 // AliRawEventHeader::HeaderSize()), -1 in case of error and 0 for EOF.
720
721 Int_t nrecv;
722
723 if (eb) {
724 // read from event builder memory area
725 raw.SetBuffer(eb, size);
726 nrecv = size;
727 } else {
728 // read from fifo or file
729 raw.SetSize(size);
730 if ((nrecv = Read(raw.GetBuffer(), size)) != size) {
731 if (nrecv == 0) {
732 Error("ReadRawData", "unexpected EOF");
733 return 0;
734 }
735 return -1;
736 }
737 }
738
739 return nrecv;
740}
741
742//______________________________________________________________________________
743Int_t AliMDC::DumpEvent(Int_t toRead)
744{
745 // This case should not happen, but if it does try to handle it
746 // gracefully by reading the rest of the event and discarding it.
747 // Returns bytes read, -1 in case of fatal error and 0 for EOF.
748
749 Error("DumpEvent", "dumping %d bytes of event %d", toRead, fNumEvents);
750
751 Int_t nrecv;
752 char *tbuf = new char[toRead];
753 if ((nrecv = Read(tbuf, toRead)) != toRead) {
754 if (nrecv == 0) {
755 Error("DumpEvent", "unexpected EOF");
756 return 0;
757 }
758 return -1;
759 }
760 delete [] tbuf;
761
762 return nrecv;
763}
764
765//______________________________________________________________________________
a109e73e 766Int_t AliMDC::Filter(
767#ifdef USE_HLT
768 AliRawEvent *event,AliESD *esd
769#endif
770 )
a197a4ce 771{
a109e73e 772 // Call 3rd level filter for this raw data event.
a197a4ce 773
774#ifdef USE_HLT
775
a109e73e 776 // Run the HLT code
777 {
778 TStopwatch timer;
779 timer.Start();
780
781 AliL3Hough *hough1 = new AliL3Hough();
782
783 hough1->SetThreshold(4);
784 hough1->SetTransformerParams(76,140,0.4,-1);
785 hough1->SetPeakThreshold(70,-1);
786 // Attention Z of the vertex to be taken from the event head!
787 // So far for debug purposes it is fixed by hand...
788 hough1->Init(100,4,event,3.82147);
789 hough1->SetAddHistograms();
790
791 AliL3Hough *hough2 = new AliL3Hough();
792
793 hough2->SetThreshold(4);
794 hough2->SetTransformerParams(76,140,0.4,-1);
795 hough2->SetPeakThreshold(70,-1);
796 hough2->Init(100,4,event,3.82147);
797 hough2->SetAddHistograms();
798
799 Int_t nglobaltracks = 0;
800 /* In case we run HLT code in 2 threads */
801 hough1->StartProcessInThread(0,17);
802 hough2->StartProcessInThread(18,35);
803
804 if(hough1->WaitForThreadFinish())
805 ::Fatal("AliL3Hough::WaitForThreadFinish"," Can not join the required thread! ");
806 if(hough2->WaitForThreadFinish())
807 ::Fatal("AliL3Hough::WaitForThreadFinish"," Can not join the required thread! ");
808
809 /* In case we run HLT code in the main thread
810 for(Int_t slice=0; slice<=17; slice++)
811 {
812 hough1->ReadData(slice,0);
813 hough1->Transform();
814 hough1->AddAllHistogramsRows();
815 hough1->FindTrackCandidatesRow();
816 hough1->AddTracks();
817 }
818 for(Int_t slice=18; slice<=35; slice++)
819 {
820 hough2->ReadData(slice,0);
821 hough2->Transform();
822 hough2->AddAllHistogramsRows();
823 hough2->FindTrackCandidatesRow();
824 hough2->AddTracks();
825 }
826 */
827
828 nglobaltracks += hough1->FillESD(esd);
829 nglobaltracks += hough2->FillESD(esd);
830
831 /* In case we want to debug the ESD
832 gSystem->MakeDirectory("hough1");
833 hough1->WriteTracks("./hough1");
834 gSystem->MakeDirectory("hough2");
835 hough2->WriteTracks("./hough2");
836 */
837
838 delete hough1;
839 delete hough2;
840
841 printf("Filter called for event %d\n", fNumEvents);
842 printf("Filter has found %d TPC tracks in %f seconds\n", nglobaltracks,timer.RealTime());
843 }
a197a4ce 844
845#else
846
a109e73e 847 printf("Filter called for event %d\n", fNumEvents);
a197a4ce 848
849#endif
850
a109e73e 851 return 0;
a197a4ce 852}
853
854//______________________________________________________________________________
855AliMDC::AliMDCInterruptHandler::AliMDCInterruptHandler(const
856 AliMDCInterruptHandler&
857 handler):
858 TSignalHandler(handler)
859{
860// copy constructor
861
862 Fatal("AliMDCInterruptHandler", "copy constructor not implemented");
863}
864
865//______________________________________________________________________________
866AliMDC::AliMDCInterruptHandler&
867 AliMDC::AliMDCInterruptHandler::operator = (const AliMDCInterruptHandler&
868 /*handler*/)
869{
870// assignment operator
871
872 Fatal("operator =", "assignment operator not implemented");
873 return *this;
874}