[u/mrichter/AliRoot.git] / RAW / AliRawReaderDate.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
///
/// This is a class for reading raw data from a date file or event.
///
/// The AliRawReaderDate is constructed either with a pointer to a
/// date event or with a file name and an event number.
///
///////////////////////////////////////////////////////////////////////////////

#include "AliRawReaderDate.h"
#ifdef ALI_DATE
#include "event.h"
#endif

ClassImp(AliRawReaderDate)


AliRawReaderDate::AliRawReaderDate(
#ifdef ALI_DATE
				   void* event
#else
				   void* /* event */
#endif
				   ) :
  fFile(NULL),
  fEvent(NULL),
  fSubEvent(NULL),
  fEquipment(NULL),
  fPosition(NULL),
  fEnd(NULL)
{
// create an object to read digits from the given date event

#ifdef ALI_DATE
  fEvent = (eventHeaderStruct*) event;
#else
  Fatal("AliRawReaderDate", "this class was compiled without DATE");
#endif
}

AliRawReaderDate::AliRawReaderDate(
#ifdef ALI_DATE
				   const char* fileName, Int_t eventNumber
#else
				   const char* /*fileName*/, 
				   Int_t /*eventNumber*/
#endif
				   ) :
  fFile(NULL),
  fEvent(NULL),
  fSubEvent(NULL),
  fEquipment(NULL),
  fPosition(NULL),
  fEnd(NULL)
{
// create an object to read digits from the given date event

#ifdef ALI_DATE
  fFile = fopen(fileName, "rb");
  if (!fFile) {
    Error("AliRawReaderDate", "could not open file %s", fileName);
    fIsValid = kFALSE;
    return;
  }
  if (eventNumber < 0) return;

  eventHeaderStruct header;
  UInt_t headerSize = sizeof(eventHeaderStruct);
  while (fread(&header, 1, headerSize, fFile) == headerSize) {
    if (eventNumber == 0) {
      UChar_t* buffer = new UChar_t[header.eventSize];
      fseek(fFile, -(long)headerSize, SEEK_CUR);
      if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) break;
      fEvent = (eventHeaderStruct*) buffer;
      break;
    }
    fseek(fFile, header.eventSize-headerSize, SEEK_CUR);
    eventNumber--;
  }

#else
  Fatal("AliRawReaderDate", "this class was compiled without DATE");
#endif
}

AliRawReaderDate::AliRawReaderDate(const AliRawReaderDate& rawReader) :
  AliRawReader(rawReader),
  fFile(rawReader.fFile),
  fEvent(rawReader.fEvent),
  fSubEvent(rawReader.fSubEvent),
  fEquipment(rawReader.fEquipment),
  fPosition(rawReader.fPosition),
  fEnd(rawReader.fEnd)

{
// copy constructor

  Fatal("AliRawReaderDate", "copy constructor not implemented");
}

AliRawReaderDate& AliRawReaderDate::operator = (const AliRawReaderDate& 
						/*rawReader*/)
{
// assignment operator

  Fatal("operator =", "assignment operator not implemented");
  return *this;
}

AliRawReaderDate::~AliRawReaderDate()
{
// destructor

#ifdef ALI_DATE
  if (fFile) {
    delete[] fEvent;
    fclose(fFile);
  }
#endif
}


UInt_t AliRawReaderDate::GetType() const
{
// get the type from the event header

#ifdef ALI_DATE
  if (!fEvent) return 0;
  return fEvent->eventType;
#else
  return 0;
#endif
}

UInt_t AliRawReaderDate::GetRunNumber() const
{
// get the run number from the event header

#ifdef ALI_DATE
  if (!fEvent) return 0;
  return fEvent->eventRunNb;
#else
  return 0;
#endif
}

const UInt_t* AliRawReaderDate::GetEventId() const
{
// get the event id from the event header

#ifdef ALI_DATE
  if (!fEvent) return NULL;
  return fEvent->eventId;
#else
  return NULL;
#endif
}

const UInt_t* AliRawReaderDate::GetTriggerPattern() const
{
// get the trigger pattern from the event header

#ifdef ALI_DATE
  if (!fEvent) return NULL;
  return fEvent->eventTriggerPattern;
#else
  return NULL;
#endif
}

const UInt_t* AliRawReaderDate::GetDetectorPattern() const
{
// get the detector pattern from the event header

#ifdef ALI_DATE
  if (!fEvent) return NULL;
  return fEvent->eventDetectorPattern;
#else
  return NULL;
#endif
}

const UInt_t* AliRawReaderDate::GetAttributes() const
{
// get the type attributes from the event header

#ifdef ALI_DATE
  if (!fEvent) return NULL;
  return fEvent->eventTypeAttribute;
#else
  return NULL;
#endif
}

const UInt_t* AliRawReaderDate::GetSubEventAttributes() const
{
// get the type attributes from the sub event header

#ifdef ALI_DATE
  if (!fSubEvent) return NULL;
  return fSubEvent->eventTypeAttribute;
#else
  return NULL;
#endif
}

UInt_t AliRawReaderDate::GetLDCId() const
{
// get the LDC Id from the event header

#ifdef ALI_DATE
  if (!fSubEvent) return 0;
  return fSubEvent->eventLdcId;
#else
  return 0;
#endif
}

UInt_t AliRawReaderDate::GetGDCId() const
{
// get the GDC Id from the event header

#ifdef ALI_DATE
  if (!fEvent) return 0;
  return fEvent->eventGdcId;
#else
  return 0;
#endif
}

UInt_t AliRawReaderDate::GetTimestamp() const
{
// get the timestamp from the event header

#ifdef ALI_DATE
  if (!fEvent) return 0;
  return fEvent->eventTimestamp;
#else
  return 0;
#endif
}

Int_t AliRawReaderDate::GetEquipmentSize() const
{
// get the size of the equipment (including the header)

#ifdef ALI_DATE
  if (!fEquipment) return 0;
  if (fSubEvent->eventVersion <= 0x00030001) {
    return fEquipment->equipmentSize + sizeof(equipmentHeaderStruct);
  } else {
    return fEquipment->equipmentSize;
  }
#else
  return 0;
#endif
}

Int_t AliRawReaderDate::GetEquipmentType() const
{
// get the type from the equipment header

#ifdef ALI_DATE
  if (!fEquipment) return -1;
  return fEquipment->equipmentType;
#else
  return 0;
#endif
}

Int_t AliRawReaderDate::GetEquipmentId() const
{
// get the ID from the equipment header

#ifdef ALI_DATE
  if (!fEquipment) return -1;
  return fEquipment->equipmentId;
#else
  return 0;
#endif
}

const UInt_t* AliRawReaderDate::GetEquipmentAttributes() const
{
// get the attributes from the equipment header

#ifdef ALI_DATE
  if (!fEquipment) return NULL;
  return fEquipment->equipmentTypeAttribute;
#else
  return 0;
#endif
}

Int_t AliRawReaderDate::GetEquipmentElementSize() const
{
// get the basic element size from the equipment header

#ifdef ALI_DATE
  if (!fEquipment) return 0;
  return fEquipment->equipmentBasicElementSize;
#else
  return 0;
#endif
}

Int_t AliRawReaderDate::GetEquipmentHeaderSize() const
{
  // Get the equipment header size
  // 28 bytes by default
#ifdef ALI_DATE
  return sizeof(equipmentHeaderStruct);
#else
  return 0;
#endif
}

Bool_t AliRawReaderDate::ReadHeader()
{
// read a data header at the current position
// returns kFALSE if the data header could not be read

  fErrorCode = 0;

#ifdef ALI_DATE
  fHeader = NULL;
  if (!fEvent) return kFALSE;
  // check whether there are sub events
  if (fEvent->eventSize <= fEvent->eventHeadSize) return kFALSE;

  do {
    // skip payload (if event was not selected)
    if (fCount > 0) fPosition += fCount;

    // get the first or the next equipment if at the end of an equipment
    if (!fEquipment || (fPosition >= fEnd)) {
      fEquipment = NULL;

      // get the first or the next sub event if at the end of a sub event
      if (!fSubEvent || 
	  (fPosition >= ((UChar_t*)fSubEvent) + fSubEvent->eventSize)) {

	// check for end of event data
	if (fPosition >= ((UChar_t*)fEvent)+fEvent->eventSize) return kFALSE;
        if (!TEST_SYSTEM_ATTRIBUTE(fEvent->eventTypeAttribute, 
                                   ATTR_SUPER_EVENT)) {
	  fSubEvent = fEvent;   // no super event
	} else if (fSubEvent) {
	  fSubEvent = (eventHeaderStruct*) (((UChar_t*)fSubEvent) + 
					    fSubEvent->eventSize);
	} else {
	  fSubEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + 
					    fEvent->eventHeadSize);
	}

	// check the magic word of the sub event
	if (fSubEvent->eventMagic != EVENT_MAGIC_NUMBER) {
	  Error("ReadHeader", "wrong magic number in sub event!\n"
		" run: %d  event: %d %d  LDC: %d  GDC: %d\n", 
		fSubEvent->eventRunNb, 
		fSubEvent->eventId[0], fSubEvent->eventId[1],
		fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	  fErrorCode = kErrMagic;
	  return kFALSE;
	}

	// continue if no data in the subevent
	if (fSubEvent->eventSize == fSubEvent->eventHeadSize) {
	  fPosition = fEnd = ((UChar_t*)fSubEvent) + fSubEvent->eventSize;
	  fCount = 0;
	  continue;
	}

	fEquipment = (equipmentHeaderStruct*)
	  (((UChar_t*)fSubEvent) + fSubEvent->eventHeadSize);

      } else {
	fEquipment = (equipmentHeaderStruct*) fEnd;
      }

      fCount = 0;
      fPosition = ((UChar_t*)fEquipment) + sizeof(equipmentHeaderStruct);
      if (fSubEvent->eventVersion <= 0x00030001) {
        fEnd = fPosition + fEquipment->equipmentSize;
      } else {
        fEnd = ((UChar_t*)fEquipment) + fEquipment->equipmentSize;
      }
    }

    // continue with the next sub event if no data left in the payload
    if (fPosition >= fEnd) continue;

    if (fRequireHeader) {
      // check that there are enough bytes left for the data header
      if (fPosition + sizeof(AliRawDataHeader) > fEnd) {
	Error("ReadHeader", "could not read data header data!");
	Warning("ReadHeader", "skipping %d bytes\n"
		" run: %d  event: %d %d  LDC: %d  GDC: %d\n", 
		fEnd - fPosition, fSubEvent->eventRunNb, 
		fSubEvent->eventId[0], fSubEvent->eventId[1],
		fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	fCount = 0;
	fPosition = fEnd;
	fErrorCode = kErrNoDataHeader;
	continue;
      }

      // "read" the data header
      fHeader = (AliRawDataHeader*) fPosition;
      if ((fPosition + fHeader->fSize) != fEnd) {
	if ((fHeader->fSize != 0xFFFFFFFF) &&
	    (fEquipment->equipmentId != 4352))
	  Warning("ReadHeader",
		  "raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !",
		  fHeader->fSize, fEnd - fPosition);
	fHeader->fSize = fEnd - fPosition;
      }
      fPosition += sizeof(AliRawDataHeader);
    }

    if (fHeader && (fHeader->fSize != 0xFFFFFFFF)) {
      fCount = fHeader->fSize - sizeof(AliRawDataHeader);

      // check consistency of data size in the header and in the sub event
      if (fPosition + fCount > fEnd) {
	Error("ReadHeader", "size in data header exceeds event size!");
	Warning("ReadHeader", "skipping %d bytes\n"
		" run: %d  event: %d %d  LDC: %d  GDC: %d\n", 
		fEnd - fPosition, fSubEvent->eventRunNb, 
		fSubEvent->eventId[0], fSubEvent->eventId[1],
		fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	fCount = 0;
	fPosition = fEnd;
	fErrorCode = kErrSize;
	continue;
      }

    } else {
      fCount = fEnd - fPosition;
    }

  } while (!fEquipment || !IsSelected());

  return kTRUE;
#else
  return kFALSE;
#endif
}

Bool_t AliRawReaderDate::ReadNextData(UChar_t*& data)
{
// reads the next payload at the current position
// returns kFALSE if the data could not be read

  fErrorCode = 0;
  while (fCount == 0) {
    if (!ReadHeader()) return kFALSE;
  }
  data = fPosition;
  fPosition += fCount;  
  fCount = 0;
  return kTRUE;
}

Bool_t AliRawReaderDate::ReadNext(UChar_t* data, Int_t size)
{
// reads the next block of data at the current position
// returns kFALSE if the data could not be read

  fErrorCode = 0;
  if (fPosition + size > fEnd) {
    Error("ReadNext", "could not read data!");
    fErrorCode = kErrOutOfBounds;
    return kFALSE;
  }
  memcpy(data, fPosition, size);
  fPosition += size;
  fCount -= size;
  return kTRUE;
}


Bool_t AliRawReaderDate::Reset()
{
// reset the current position to the beginning of the event

#ifdef ALI_DATE
  fSubEvent = NULL;
  fEquipment = NULL;
#endif
  fCount = 0;
  fPosition = fEnd = NULL;
  return kTRUE;
}


Bool_t AliRawReaderDate::NextEvent()
{
// go to the next event in the date file

#ifdef ALI_DATE
  if (!fFile) {
    if (fEventNumber < 0 && fEvent) {
      fEventNumber++;
      return kTRUE;
    }
    else
      return kFALSE;
  }

  Reset();
  eventHeaderStruct header;
  UInt_t headerSize = sizeof(eventHeaderStruct);
  if (fEvent) delete[] fEvent;
  fEvent = &header;

  while (fread(&header, 1, headerSize, fFile) == headerSize) {
    if (!IsEventSelected()) {
      fseek(fFile, header.eventSize-headerSize, SEEK_CUR);
      continue;
    }
    UChar_t* buffer = new UChar_t[header.eventSize];
    fseek(fFile, -(long)headerSize, SEEK_CUR);
    if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) {
      Error("NextEvent", "could not read event from file");
      delete[] buffer;
      break;
    }
    fEvent = (eventHeaderStruct*) buffer;
    fEventNumber++;
    return kTRUE;
  };

  fEvent = NULL;
#endif

  return kFALSE;
}

Bool_t AliRawReaderDate::RewindEvents()
{
// go back to the beginning of the date file

  if (fFile)
    fseek(fFile, 0, SEEK_SET);

  fEventNumber = -1;
  return Reset();
}


Int_t AliRawReaderDate::CheckData() const
{
// check the consistency of the data

#ifdef ALI_DATE
  if (!fEvent) return 0;
  // check whether there are sub events
  if (fEvent->eventSize <= fEvent->eventHeadSize) return 0;

  eventHeaderStruct* subEvent = NULL;
  UChar_t* position = 0;
  UChar_t* end = 0;
  Int_t result = 0;

  while (kTRUE) {
    // get the first or the next sub event if at the end of a sub event
    if (!subEvent || (position >= end)) {

      // check for end of event data
      if (position >= ((UChar_t*)fEvent)+fEvent->eventSize) return result;
      if (!TEST_SYSTEM_ATTRIBUTE(fEvent->eventTypeAttribute, 
                                 ATTR_SUPER_EVENT)) {
        subEvent = fEvent;   // no super event
      } else if (subEvent) {
	subEvent = (eventHeaderStruct*) (((UChar_t*)subEvent) + 
					 subEvent->eventSize);
      } else {
	subEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) + 
					 fEvent->eventHeadSize);
      }

      // check the magic word of the sub event
      if (subEvent->eventMagic != EVENT_MAGIC_NUMBER) {
	result |= kErrMagic;
	return result;
      }

      position = ((UChar_t*)subEvent) + subEvent->eventHeadSize + 
	sizeof(equipmentHeaderStruct);
      end = ((UChar_t*)subEvent) + subEvent->eventSize;
    }

    // continue with the next sub event if no data left in the payload
    if (position >= end) continue;

    if (fRequireHeader) {
    // check that there are enough bytes left for the data header
      if (position + sizeof(AliRawDataHeader) > end) {
	result |= kErrNoDataHeader;
	position = end;
	continue;
      }

      // check consistency of data size in the data header and in the sub event
      AliRawDataHeader* header = (AliRawDataHeader*) position;
      if ((position + header->fSize) != end) {
	if (header->fSize != 0xFFFFFFFF)
	  Warning("ReadHeader",
		  "raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !",
		  header->fSize, end - position);
	header->fSize = end - position;
	result |= kErrSize;
      }
    }
    position = end;
  };

#endif
  return 0;
}
Commit	Line	Data
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	/* $Id$ */
bea6b2a4	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	) :
dd9a70fe	42	fFile(NULL),
c946ab02	43	fEvent(NULL),
	44	fSubEvent(NULL),
	45	fEquipment(NULL),
c946ab02	46	fPosition(NULL),
c946ab02	47	fEnd(NULL)
16048fcf	48	{
	49	// create an object to read digits from the given date event
	50
	51	#ifdef ALI_DATE
	52	fEvent = (eventHeaderStruct*) event;
c946ab02	53	#else
	54	Fatal("AliRawReaderDate", "this class was compiled without DATE");
	55	#endif
	56	}
	57
	58	AliRawReaderDate::AliRawReaderDate(
	59	#ifdef ALI_DATE
	60	const char* fileName, Int_t eventNumber
	61	#else
	62	const char* /fileName/,
	63	Int_t /eventNumber/
	64	#endif
	65	) :
dd9a70fe	66	fFile(NULL),
c946ab02	67	fEvent(NULL),
	68	fSubEvent(NULL),
	69	fEquipment(NULL),
c946ab02	70	fPosition(NULL),
	71	fEnd(NULL)
	72	{
	73	// create an object to read digits from the given date event
	74
	75	#ifdef ALI_DATE
dd9a70fe	76	fFile = fopen(fileName, "rb");
dd9a70fe	77	if (!fFile) {
c946ab02	78	Error("AliRawReaderDate", "could not open file %s", fileName);
a97af23d	79	fIsValid = kFALSE;
c946ab02	80	return;
c946ab02	81	}
dd9a70fe	82	if (eventNumber < 0) return;
dd9a70fe	83
c946ab02	84	eventHeaderStruct header;
c946ab02	85	UInt_t headerSize = sizeof(eventHeaderStruct);
dd9a70fe	86	while (fread(&header, 1, headerSize, fFile) == headerSize) {
c946ab02	87	if (eventNumber == 0) {
c946ab02	88	UChar_t* buffer = new UChar_t[header.eventSize];
b91d160c	89	fseek(fFile, -(long)headerSize, SEEK_CUR);
dd9a70fe	90	if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) break;
c946ab02	91	fEvent = (eventHeaderStruct*) buffer;
c946ab02	92	break;
c946ab02	93	}
dd9a70fe	94	fseek(fFile, header.eventSize-headerSize, SEEK_CUR);
c946ab02	95	eventNumber--;
c946ab02	96	}
c946ab02	97
16048fcf	98	#else
	99	Fatal("AliRawReaderDate", "this class was compiled without DATE");
	100	#endif
	101	}
	102
	103	AliRawReaderDate::AliRawReaderDate(const AliRawReaderDate& rawReader) :
c946ab02	104	AliRawReader(rawReader),
dd9a70fe	105	fFile(rawReader.fFile),
c946ab02	106	fEvent(rawReader.fEvent),
	107	fSubEvent(rawReader.fSubEvent),
	108	fEquipment(rawReader.fEquipment),
c946ab02	109	fPosition(rawReader.fPosition),
	110	fEnd(rawReader.fEnd)
	111
16048fcf	112	{
	113	// copy constructor
	114
dd9a70fe	115	Fatal("AliRawReaderDate", "copy constructor not implemented");
16048fcf	116	}
	117
	118	AliRawReaderDate& AliRawReaderDate::operator = (const AliRawReaderDate&
dd9a70fe	119	/rawReader/)
16048fcf	120	{
	121	// assignment operator
	122
dd9a70fe	123	Fatal("operator =", "assignment operator not implemented");
16048fcf	124	return *this;
	125	}
	126
c946ab02	127	AliRawReaderDate::~AliRawReaderDate()
	128	{
	129	// destructor
	130
	131	#ifdef ALI_DATE
dd9a70fe	132	if (fFile) {
	133	delete[] fEvent;
	134	fclose(fFile);
	135	}
c946ab02	136	#endif
	137	}
	138
16048fcf	139
	140	UInt_t AliRawReaderDate::GetType() const
	141	{
	142	// get the type from the event header
	143
	144	#ifdef ALI_DATE
	145	if (!fEvent) return 0;
	146	return fEvent->eventType;
	147	#else
	148	return 0;
	149	#endif
	150	}
	151
	152	UInt_t AliRawReaderDate::GetRunNumber() const
	153	{
	154	// get the run number from the event header
	155
	156	#ifdef ALI_DATE
	157	if (!fEvent) return 0;
	158	return fEvent->eventRunNb;
	159	#else
	160	return 0;
	161	#endif
	162	}
	163
	164	const UInt_t* AliRawReaderDate::GetEventId() const
	165	{
	166	// get the event id from the event header
	167
	168	#ifdef ALI_DATE
	169	if (!fEvent) return NULL;
	170	return fEvent->eventId;
	171	#else
	172	return NULL;
	173	#endif
	174	}
	175
	176	const UInt_t* AliRawReaderDate::GetTriggerPattern() const
	177	{
	178	// get the trigger pattern from the event header
	179
	180	#ifdef ALI_DATE
	181	if (!fEvent) return NULL;
	182	return fEvent->eventTriggerPattern;
	183	#else
	184	return NULL;
	185	#endif
	186	}
	187
	188	const UInt_t* AliRawReaderDate::GetDetectorPattern() const
	189	{
	190	// get the detector pattern from the event header
	191
	192	#ifdef ALI_DATE
	193	if (!fEvent) return NULL;
	194	return fEvent->eventDetectorPattern;
	195	#else
	196	return NULL;
	197	#endif
	198	}
	199
	200	const UInt_t* AliRawReaderDate::GetAttributes() const
	201	{
	202	// get the type attributes from the event header
203
204	#ifdef ALI_DATE
205	if (!fEvent) return NULL;
206	return fEvent->eventTypeAttribute;
207	#else
208	return NULL;
209	#endif
210	}
211
e94ad92c	212	const UInt_t* AliRawReaderDate::GetSubEventAttributes() const
	213	{
	214	// get the type attributes from the sub event header
	215
	216	#ifdef ALI_DATE
	217	if (!fSubEvent) return NULL;
	218	return fSubEvent->eventTypeAttribute;
	219	#else
	220	return NULL;
	221	#endif
	222	}
	223
c946ab02	224	UInt_t AliRawReaderDate::GetLDCId() const
	225	{
	226	// get the LDC Id from the event header
	227
	228	#ifdef ALI_DATE
	229	if (!fSubEvent) return 0;
	230	return fSubEvent->eventLdcId;
	231	#else
	232	return 0;
	233	#endif
	234	}
	235
16048fcf	236	UInt_t AliRawReaderDate::GetGDCId() const
	237	{
	238	// get the GDC Id from the event header
	239
	240	#ifdef ALI_DATE
	241	if (!fEvent) return 0;
	242	return fEvent->eventGdcId;
	243	#else
	244	return 0;
	245	#endif
	246	}
	247
741c154c	248	UInt_t AliRawReaderDate::GetTimestamp() const
	249	{
	250	// get the timestamp from the event header
	251
	252	#ifdef ALI_DATE
	253	if (!fEvent) return 0;
	254	return fEvent->eventTimestamp;
	255	#else
	256	return 0;
	257	#endif
	258	}
16048fcf	259
c946ab02	260	Int_t AliRawReaderDate::GetEquipmentSize() const
c946ab02	261	{
299738b9	262	// get the size of the equipment (including the header)
c946ab02	263
	264	#ifdef ALI_DATE
	265	if (!fEquipment) return 0;
87db01b0	266	if (fSubEvent->eventVersion <= 0x00030001) {
299738b9	267	return fEquipment->equipmentSize + sizeof(equipmentHeaderStruct);
87db01b0	268	} else {
299738b9	269	return fEquipment->equipmentSize;
87db01b0	270	}
c946ab02	271	#else
	272	return 0;
	273	#endif
	274	}
	275
	276	Int_t AliRawReaderDate::GetEquipmentType() const
	277	{
	278	// get the type from the equipment header
	279
	280	#ifdef ALI_DATE
	281	if (!fEquipment) return -1;
	282	return fEquipment->equipmentType;
	283	#else
	284	return 0;
	285	#endif
	286	}
	287
	288	Int_t AliRawReaderDate::GetEquipmentId() const
	289	{
	290	// get the ID from the equipment header
	291
	292	#ifdef ALI_DATE
	293	if (!fEquipment) return -1;
	294	return fEquipment->equipmentId;
	295	#else
	296	return 0;
	297	#endif
	298	}
	299
	300	const UInt_t* AliRawReaderDate::GetEquipmentAttributes() const
	301	{
	302	// get the attributes from the equipment header
	303
	304	#ifdef ALI_DATE
	305	if (!fEquipment) return NULL;
	306	return fEquipment->equipmentTypeAttribute;
	307	#else
	308	return 0;
	309	#endif
	310	}
	311
	312	Int_t AliRawReaderDate::GetEquipmentElementSize() const
	313	{
	314	// get the basic element size from the equipment header
	315
	316	#ifdef ALI_DATE
	317	if (!fEquipment) return 0;
	318	return fEquipment->equipmentBasicElementSize;
	319	#else
	320	return 0;
	321	#endif
	322	}
	323
299738b9	324	Int_t AliRawReaderDate::GetEquipmentHeaderSize() const
	325	{
	326	// Get the equipment header size
	327	// 28 bytes by default
	328	#ifdef ALI_DATE
	329	return sizeof(equipmentHeaderStruct);
	330	#else
	331	return 0;
	332	#endif
	333	}
c946ab02	334
c946ab02	335	Bool_t AliRawReaderDate::ReadHeader()
16048fcf	336	{
39f9963f	337	// read a data header at the current position
39f9963f	338	// returns kFALSE if the data header could not be read
16048fcf	339
b4857df7	340	fErrorCode = 0;
b4857df7	341
16048fcf	342	#ifdef ALI_DATE
921a8308	343	fHeader = NULL;
16048fcf	344	if (!fEvent) return kFALSE;
b4857df7	345	// check whether there are sub events
	346	if (fEvent->eventSize <= fEvent->eventHeadSize) return kFALSE;
	347
16048fcf	348	do {
b4857df7	349	// skip payload (if event was not selected)
	350	if (fCount > 0) fPosition += fCount;
	351
c946ab02	352	// get the first or the next equipment if at the end of an equipment
c946ab02	353	if (!fEquipment \|\| (fPosition >= fEnd)) {
921a8308	354	fEquipment = NULL;
c946ab02	355
	356	// get the first or the next sub event if at the end of a sub event
	357	if (!fSubEvent \|\|
	358	(fPosition >= ((UChar_t*)fSubEvent) + fSubEvent->eventSize)) {
	359
	360	// check for end of event data
	361	if (fPosition >= ((UChar_t*)fEvent)+fEvent->eventSize) return kFALSE;
5ba96ac1	362	if (!TEST_SYSTEM_ATTRIBUTE(fEvent->eventTypeAttribute,
	363	ATTR_SUPER_EVENT)) {
	364	fSubEvent = fEvent; // no super event
	365	} else if (fSubEvent) {
c946ab02	366	fSubEvent = (eventHeaderStruct) (((UChar_t)fSubEvent) +
	367	fSubEvent->eventSize);
	368	} else {
	369	fSubEvent = (eventHeaderStruct) (((UChar_t)fEvent) +
	370	fEvent->eventHeadSize);
	371	}
	372
	373	// check the magic word of the sub event
	374	if (fSubEvent->eventMagic != EVENT_MAGIC_NUMBER) {
	375	Error("ReadHeader", "wrong magic number in sub event!\n"
	376	" run: %d event: %d %d LDC: %d GDC: %d\n",
	377	fSubEvent->eventRunNb,
	378	fSubEvent->eventId[0], fSubEvent->eventId[1],
	379	fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	380	fErrorCode = kErrMagic;
	381	return kFALSE;
	382	}
	383
921a8308	384	// continue if no data in the subevent
	385	if (fSubEvent->eventSize == fSubEvent->eventHeadSize) {
	386	fPosition = fEnd = ((UChar_t*)fSubEvent) + fSubEvent->eventSize;
	387	fCount = 0;
	388	continue;
	389	}
	390
c946ab02	391	fEquipment = (equipmentHeaderStruct*)
c946ab02	392	(((UChar_t*)fSubEvent) + fSubEvent->eventHeadSize);
b4857df7	393
16048fcf	394	} else {
c946ab02	395	fEquipment = (equipmentHeaderStruct*) fEnd;
b4857df7	396	}
b4857df7	397
16048fcf	398	fCount = 0;
c946ab02	399	fPosition = ((UChar_t*)fEquipment) + sizeof(equipmentHeaderStruct);
87db01b0	400	if (fSubEvent->eventVersion <= 0x00030001) {
921a8308	401	fEnd = fPosition + fEquipment->equipmentSize;
	402	} else {
	403	fEnd = ((UChar_t*)fEquipment) + fEquipment->equipmentSize;
	404	}
16048fcf	405	}
b4857df7	406
	407	// continue with the next sub event if no data left in the payload
	408	if (fPosition >= fEnd) continue;
	409
39f9963f	410	if (fRequireHeader) {
	411	// check that there are enough bytes left for the data header
	412	if (fPosition + sizeof(AliRawDataHeader) > fEnd) {
	413	Error("ReadHeader", "could not read data header data!");
c946ab02	414	Warning("ReadHeader", "skipping %d bytes\n"
	415	" run: %d event: %d %d LDC: %d GDC: %d\n",
	416	fEnd - fPosition, fSubEvent->eventRunNb,
	417	fSubEvent->eventId[0], fSubEvent->eventId[1],
	418	fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	419	fCount = 0;
	420	fPosition = fEnd;
39f9963f	421	fErrorCode = kErrNoDataHeader;
c946ab02	422	continue;
c946ab02	423	}
b4857df7	424
39f9963f	425	// "read" the data header
39f9963f	426	fHeader = (AliRawDataHeader*) fPosition;
299738b9	427	if ((fPosition + fHeader->fSize) != fEnd) {
da1241fd	428	if ((fHeader->fSize != 0xFFFFFFFF) &&
da1241fd	429	(fEquipment->equipmentId != 4352))
806e573c	430	Warning("ReadHeader",
	431	"raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !",
	432	fHeader->fSize, fEnd - fPosition);
299738b9	433	fHeader->fSize = fEnd - fPosition;
299738b9	434	}
39f9963f	435	fPosition += sizeof(AliRawDataHeader);
72dd1d4f	436	}
c946ab02	437
39f9963f	438	if (fHeader && (fHeader->fSize != 0xFFFFFFFF)) {
39f9963f	439	fCount = fHeader->fSize - sizeof(AliRawDataHeader);
c946ab02	440
39f9963f	441	// check consistency of data size in the header and in the sub event
c946ab02	442	if (fPosition + fCount > fEnd) {
39f9963f	443	Error("ReadHeader", "size in data header exceeds event size!");
c946ab02	444	Warning("ReadHeader", "skipping %d bytes\n"
	445	" run: %d event: %d %d LDC: %d GDC: %d\n",
	446	fEnd - fPosition, fSubEvent->eventRunNb,
	447	fSubEvent->eventId[0], fSubEvent->eventId[1],
	448	fSubEvent->eventLdcId, fSubEvent->eventGdcId);
	449	fCount = 0;
	450	fPosition = fEnd;
	451	fErrorCode = kErrSize;
	452	continue;
	453	}
	454
	455	} else {
	456	fCount = fEnd - fPosition;
16048fcf	457	}
b4857df7	458
921a8308	459	} while (!fEquipment \|\| !IsSelected());
b4857df7	460
16048fcf	461	return kTRUE;
	462	#else
	463	return kFALSE;
	464	#endif
	465	}
	466
	467	Bool_t AliRawReaderDate::ReadNextData(UChar_t*& data)
	468	{
	469	// reads the next payload at the current position
	470	// returns kFALSE if the data could not be read
	471
b4857df7	472	fErrorCode = 0;
16048fcf	473	while (fCount == 0) {
c946ab02	474	if (!ReadHeader()) return kFALSE;
16048fcf	475	}
	476	data = fPosition;
	477	fPosition += fCount;
	478	fCount = 0;
	479	return kTRUE;
	480	}
	481
	482	Bool_t AliRawReaderDate::ReadNext(UChar_t* data, Int_t size)
	483	{
	484	// reads the next block of data at the current position
	485	// returns kFALSE if the data could not be read
	486
b4857df7	487	fErrorCode = 0;
16048fcf	488	if (fPosition + size > fEnd) {
16048fcf	489	Error("ReadNext", "could not read data!");
b4857df7	490	fErrorCode = kErrOutOfBounds;
16048fcf	491	return kFALSE;
	492	}
	493	memcpy(data, fPosition, size);
	494	fPosition += size;
	495	fCount -= size;
	496	return kTRUE;
	497	}
	498
	499
	500	Bool_t AliRawReaderDate::Reset()
	501	{
	502	// reset the current position to the beginning of the event
	503
	504	#ifdef ALI_DATE
	505	fSubEvent = NULL;
d7aa1c7c	506	fEquipment = NULL;
16048fcf	507	#endif
	508	fCount = 0;
	509	fPosition = fEnd = NULL;
	510	return kTRUE;
	511	}
b4857df7	512
b4857df7	513
dd9a70fe	514	Bool_t AliRawReaderDate::NextEvent()
	515	{
	516	// go to the next event in the date file
	517
5bec8712	518	#ifdef ALI_DATE
b04576f7	519	if (!fFile) {
	520	if (fEventNumber < 0 && fEvent) {
	521	fEventNumber++;
	522	return kTRUE;
	523	}
	524	else
	525	return kFALSE;
	526	}
dd9a70fe	527
d7aa1c7c	528	Reset();
dd9a70fe	529	eventHeaderStruct header;
	530	UInt_t headerSize = sizeof(eventHeaderStruct);
	531	if (fEvent) delete[] fEvent;
	532	fEvent = &header;
	533
	534	while (fread(&header, 1, headerSize, fFile) == headerSize) {
	535	if (!IsEventSelected()) {
	536	fseek(fFile, header.eventSize-headerSize, SEEK_CUR);
	537	continue;
	538	}
	539	UChar_t* buffer = new UChar_t[header.eventSize];
b91d160c	540	fseek(fFile, -(long)headerSize, SEEK_CUR);
dd9a70fe	541	if (fread(buffer, 1, header.eventSize, fFile) != header.eventSize) {
	542	Error("NextEvent", "could not read event from file");
	543	delete[] buffer;
	544	break;
	545	}
	546	fEvent = (eventHeaderStruct*) buffer;
38cf12f3	547	fEventNumber++;
dd9a70fe	548	return kTRUE;
	549	};
	550
	551	fEvent = NULL;
bba5b21b	552	#endif
5bec8712	553
dd9a70fe	554	return kFALSE;
	555	}
	556
	557	Bool_t AliRawReaderDate::RewindEvents()
	558	{
	559	// go back to the beginning of the date file
	560
b04576f7	561	if (fFile)
b04576f7	562	fseek(fFile, 0, SEEK_SET);
dd9a70fe	563
38cf12f3	564	fEventNumber = -1;
dd9a70fe	565	return Reset();
	566	}
	567
	568
b4857df7	569	Int_t AliRawReaderDate::CheckData() const
	570	{
	571	// check the consistency of the data
	572
	573	#ifdef ALI_DATE
	574	if (!fEvent) return 0;
	575	// check whether there are sub events
	576	if (fEvent->eventSize <= fEvent->eventHeadSize) return 0;
	577
	578	eventHeaderStruct* subEvent = NULL;
	579	UChar_t* position = 0;
	580	UChar_t* end = 0;
be50fca2	581	Int_t result = 0;
b4857df7	582
	583	while (kTRUE) {
	584	// get the first or the next sub event if at the end of a sub event
	585	if (!subEvent \|\| (position >= end)) {
	586
	587	// check for end of event data
be50fca2	588	if (position >= ((UChar_t*)fEvent)+fEvent->eventSize) return result;
5ba96ac1	589	if (!TEST_SYSTEM_ATTRIBUTE(fEvent->eventTypeAttribute,
	590	ATTR_SUPER_EVENT)) {
	591	subEvent = fEvent; // no super event
	592	} else if (subEvent) {
b4857df7	593	subEvent = (eventHeaderStruct) (((UChar_t)subEvent) +
	594	subEvent->eventSize);
	595	} else {
	596	subEvent = (eventHeaderStruct) (((UChar_t)fEvent) +
	597	fEvent->eventHeadSize);
	598	}
	599
	600	// check the magic word of the sub event
be50fca2	601	if (subEvent->eventMagic != EVENT_MAGIC_NUMBER) {
	602	result \|= kErrMagic;
	603	return result;
	604	}
b4857df7	605
	606	position = ((UChar_t*)subEvent) + subEvent->eventHeadSize +
	607	sizeof(equipmentHeaderStruct);
	608	end = ((UChar_t*)subEvent) + subEvent->eventSize;
	609	}
	610
	611	// continue with the next sub event if no data left in the payload
	612	if (position >= end) continue;
	613
18882b3b	614	if (fRequireHeader) {
39f9963f	615	// check that there are enough bytes left for the data header
18882b3b	616	if (position + sizeof(AliRawDataHeader) > end) {
18882b3b	617	result \|= kErrNoDataHeader;
39f9963f	618	position = end;
18882b3b	619	continue;
	620	}
	621
	622	// check consistency of data size in the data header and in the sub event
	623	AliRawDataHeader* header = (AliRawDataHeader*) position;
299738b9	624	if ((position + header->fSize) != end) {
806e573c	625	if (header->fSize != 0xFFFFFFFF)
	626	Warning("ReadHeader",
	627	"raw data size found in the header is wrong (%d != %d)! Using the equipment size instead !",
	628	header->fSize, end - position);
299738b9	629	header->fSize = end - position;
299738b9	630	result \|= kErrSize;
39f9963f	631	}
be50fca2	632	}
18882b3b	633	position = end;
b4857df7	634	};
	635
	636	#endif
	637	return 0;
	638	}