--- /dev/null
+/**************************************************************************
+ * 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 (version 3).
+///
+/// The AliRawReaderDateV3 is constructed either with a pointer to a
+/// date event or with a file name and an event number.
+///
+///////////////////////////////////////////////////////////////////////////////
+
+#include "AliRawReaderDateV3.h"
+
+struct eventHeaderStruct {
+ Int_t size; /* size of event in Bytes */
+ UInt_t magic; /* magic number used for consistency check */
+ UInt_t type; /* event type */
+ UInt_t headLen; /* size of header in bytes */
+ UInt_t runNb; /* run number */
+ UInt_t burstNb; /* burst number */
+ UInt_t nbInRun; /* event number in run */
+ UInt_t nbInBurst; /* event number in burst */
+ UInt_t triggerNb; /* trigger number for this detector */
+ UInt_t fileSeqNb; /* file sequence number for multifiles run */
+ UInt_t detectorId[3]; /* detector identification */
+ UInt_t time; /* time in seconds since 0.00 GMT 1.1.1970 */
+ UInt_t usec; /* microseconds */
+ UInt_t errorCode;
+ UInt_t deadTime;
+ UInt_t deadTimeusec;
+ UInt_t typeAttribute[2]; /* event type id mask */
+};
+
+#define EVENT_MAGIC_NUMBER ((UInt_t)0xDA1E5AFE)
+
+
+ClassImp(AliRawReaderDateV3)
+
+
+AliRawReaderDateV3::AliRawReaderDateV3(void* event) :
+ fRequireHeader(kTRUE),
+ fFile(NULL),
+ fEvent(NULL),
+ fSubEvent(NULL),
+ fPosition(NULL),
+ fEnd(NULL)
+{
+// create an object to read digits from the given date event
+
+ fEvent = (eventHeaderStruct*) event;
+}
+
+AliRawReaderDateV3::AliRawReaderDateV3(const char* fileName,
+ Int_t eventNumber) :
+ fRequireHeader(kTRUE),
+ fFile(NULL),
+ fEvent(NULL),
+ fSubEvent(NULL),
+ fPosition(NULL),
+ fEnd(NULL)
+{
+// create an object to read digits from the given date event
+
+ fFile = fopen(fileName, "rb");
+ if (!fFile) {
+ Error("AliRawReaderDateV3", "could not open file %s", fileName);
+ 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.size];
+ fseek(fFile, -headerSize, SEEK_CUR);
+ if (Int_t(fread(buffer, 1, header.size, fFile)) != header.size) break;
+ fEvent = (eventHeaderStruct*) buffer;
+ break;
+ }
+ fseek(fFile, header.size-headerSize, SEEK_CUR);
+ eventNumber--;
+ }
+}
+
+AliRawReaderDateV3::AliRawReaderDateV3(const AliRawReaderDateV3& rawReader) :
+ AliRawReader(rawReader),
+ fRequireHeader(rawReader.fRequireHeader),
+ fFile(rawReader.fFile),
+ fEvent(rawReader.fEvent),
+ fSubEvent(rawReader.fSubEvent),
+ fPosition(rawReader.fPosition),
+ fEnd(rawReader.fEnd)
+
+{
+// copy constructor
+
+ Fatal("AliRawReaderDateV3", "copy constructor not implemented");
+}
+
+AliRawReaderDateV3& AliRawReaderDateV3::operator = (const AliRawReaderDateV3&
+ /*rawReader*/)
+{
+// assignment operator
+
+ Fatal("operator =", "assignment operator not implemented");
+ return *this;
+}
+
+AliRawReaderDateV3::~AliRawReaderDateV3()
+{
+// destructor
+
+ if (fFile) {
+ delete[] fEvent;
+ fclose(fFile);
+ }
+}
+
+
+UInt_t AliRawReaderDateV3::GetType() const
+{
+// get the type from the event header
+
+ if (!fEvent) return 0;
+ return fEvent->type;
+}
+
+UInt_t AliRawReaderDateV3::GetRunNumber() const
+{
+// get the run number from the event header
+
+ if (!fEvent) return 0;
+ return fEvent->runNb;
+}
+
+const UInt_t* AliRawReaderDateV3::GetEventId() const
+{
+// get the event id from the event header
+
+ if (!fEvent) return NULL;
+ return &(fEvent->nbInRun);
+}
+
+const UInt_t* AliRawReaderDateV3::GetTriggerPattern() const
+{
+// get the trigger pattern from the event header
+
+ return NULL;
+}
+
+const UInt_t* AliRawReaderDateV3::GetDetectorPattern() const
+{
+// get the detector pattern from the event header
+
+ if (!fEvent) return NULL;
+ return fEvent->detectorId;
+}
+
+const UInt_t* AliRawReaderDateV3::GetAttributes() const
+{
+// get the type attributes from the event header
+
+ if (!fEvent) return NULL;
+ return fEvent->typeAttribute;
+}
+
+const UInt_t* AliRawReaderDateV3::GetSubEventAttributes() const
+{
+// get the type attributes from the sub event header
+
+ if (!fSubEvent) return NULL;
+ return fSubEvent->typeAttribute;
+}
+
+UInt_t AliRawReaderDateV3::GetLDCId() const
+{
+// get the LDC Id from the event header
+
+ return UInt_t(-1);
+}
+
+UInt_t AliRawReaderDateV3::GetGDCId() const
+{
+// get the GDC Id from the event header
+
+ return UInt_t(-1);
+}
+
+
+Int_t AliRawReaderDateV3::GetEquipmentSize() const
+{
+// get the size of the equipment
+
+ if (!fSubEvent) return 0;
+ return fSubEvent->size;
+}
+
+Int_t AliRawReaderDateV3::GetEquipmentType() const
+{
+// get the type from the equipment header
+
+ return 0;
+}
+
+Int_t AliRawReaderDateV3::GetEquipmentId() const
+{
+// get the ID from the equipment header
+
+ return 0;
+}
+
+const UInt_t* AliRawReaderDateV3::GetEquipmentAttributes() const
+{
+// get the attributes from the equipment header
+
+ return 0;
+}
+
+Int_t AliRawReaderDateV3::GetEquipmentElementSize() const
+{
+// get the basic element size from the equipment header
+
+ return 0;
+}
+
+
+Bool_t AliRawReaderDateV3::ReadHeader()
+{
+// read a data header at the current position
+// returns kFALSE if the data header could not be read
+
+ fErrorCode = 0;
+
+ fHeader = NULL;
+ if (!fEvent) return kFALSE;
+ // check whether there are sub events
+ if (fEvent->size <= Int_t(fEvent->headLen)) return kFALSE;
+
+ do {
+ // skip payload (if event was not selected)
+ if (fCount > 0) fPosition += fCount;
+
+ // check for end of event data
+ if (fPosition >= ((UChar_t*)fEvent)+fEvent->size) return kFALSE;
+ if ((fEvent->detectorId[2] && 0x8000) != 0x8000) {
+ fSubEvent = fEvent; // no super event
+ } else if (fSubEvent) {
+ fSubEvent = (eventHeaderStruct*) (((UChar_t*)fSubEvent) +
+ fSubEvent->size);
+ } else {
+ fSubEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) +
+ fEvent->headLen);
+ }
+
+ // check the magic word of the sub event
+ if (fSubEvent->magic != EVENT_MAGIC_NUMBER) {
+ Error("ReadHeader", "wrong magic number in sub event!\n"
+ " run: %d event: %d\n",
+ fSubEvent->runNb, fSubEvent->nbInRun);
+ fErrorCode = kErrMagic;
+ return kFALSE;
+ }
+
+ // continue if no data in the subevent
+ if (fSubEvent->size == Int_t(fSubEvent->headLen)) {
+ fPosition = fEnd = ((UChar_t*)fSubEvent) + fSubEvent->size;
+ fCount = 0;
+ continue;
+ }
+
+ fCount = 0;
+ fPosition = ((UChar_t*)fSubEvent) + sizeof(eventHeaderStruct);
+ fEnd = ((UChar_t*)fSubEvent) + fSubEvent->size;
+
+ // 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\n",
+ fEnd - fPosition, fSubEvent->runNb, fSubEvent->nbInRun);
+ fCount = 0;
+ fPosition = fEnd;
+ fErrorCode = kErrNoDataHeader;
+ continue;
+ }
+
+ // "read" the data header
+ fHeader = (AliRawDataHeader*) 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\n",
+ fEnd - fPosition, fSubEvent->runNb, fSubEvent->nbInRun);
+ fCount = 0;
+ fPosition = fEnd;
+ fErrorCode = kErrSize;
+ continue;
+ }
+
+ } else {
+ fCount = fEnd - fPosition;
+ }
+
+ } while (!IsSelected());
+
+ return kTRUE;
+}
+
+Bool_t AliRawReaderDateV3::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 AliRawReaderDateV3::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 AliRawReaderDateV3::Reset()
+{
+// reset the current position to the beginning of the event
+
+ fSubEvent = NULL;
+ fCount = 0;
+ fPosition = fEnd = NULL;
+ return kTRUE;
+}
+
+
+Bool_t AliRawReaderDateV3::NextEvent()
+{
+// go to the next event in the date file
+
+ if (!fFile) 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.size-headerSize, SEEK_CUR);
+ continue;
+ }
+ UChar_t* buffer = new UChar_t[header.size];
+ fseek(fFile, -headerSize, SEEK_CUR);
+ if (Int_t(fread(buffer, 1, header.size, fFile)) != header.size) {
+ Error("NextEvent", "could not read event from file");
+ delete[] buffer;
+ break;
+ }
+ fEvent = (eventHeaderStruct*) buffer;
+ return kTRUE;
+ };
+
+ fEvent = NULL;
+ return kFALSE;
+}
+
+Bool_t AliRawReaderDateV3::RewindEvents()
+{
+// go back to the beginning of the date file
+
+ if (!fFile) return kFALSE;
+
+ fseek(fFile, 0, SEEK_SET);
+ return Reset();
+}
+
+
+Int_t AliRawReaderDateV3::CheckData() const
+{
+// check the consistency of the data
+
+ if (!fEvent) return 0;
+ // check whether there are sub events
+ if (fEvent->size <= Int_t(fEvent->headLen)) return 0;
+
+ eventHeaderStruct* subEvent = NULL;
+ UChar_t* position = 0;
+ UChar_t* end = 0;
+ Int_t result = 0;
+
+ while (kTRUE) {
+ // check for end of event data
+ if (position >= ((UChar_t*)fEvent)+fEvent->size) return result;
+ if ((fEvent->detectorId[2] && 0x8000) != 0x8000) {
+ subEvent = fEvent; // no super event
+ } else if (subEvent) {
+ subEvent = (eventHeaderStruct*) (((UChar_t*)subEvent) +
+ subEvent->size);
+ } else {
+ subEvent = (eventHeaderStruct*) (((UChar_t*)fEvent) +
+ fEvent->headLen);
+ }
+
+ // check the magic word of the sub event
+ if (subEvent->magic != EVENT_MAGIC_NUMBER) {
+ result |= kErrMagic;
+ return result;
+ }
+
+ position = ((UChar_t*)subEvent) + subEvent->headLen;
+ end = ((UChar_t*)subEvent) + subEvent->size;
+
+ // 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 (header->fSize != 0xFFFFFFFF) {
+ if (position + header->fSize > end) result |= kErrSize;
+ }
+ }
+ position = end;
+ };
+
+ return 0;
+}
--- /dev/null
+#ifndef ALIRAWREADERDATEV3_H
+#define ALIRAWREADERDATEV3_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/* $Id$ */
+
+///////////////////////////////////////////////////////////////////////////////
+///
+/// This is a class for reading raw data from a date file or event (version 3).
+///
+///////////////////////////////////////////////////////////////////////////////
+
+#include "AliRawReader.h"
+
+struct eventHeaderStruct;
+
+
+class AliRawReaderDateV3: public AliRawReader {
+ public :
+ AliRawReaderDateV3(void* event);
+ AliRawReaderDateV3(const char* fileName, Int_t eventNumber = -1);
+ virtual ~AliRawReaderDateV3();
+
+ void RequireHeader(Bool_t required = kTRUE)
+ {fRequireHeader = required;};
+
+ virtual UInt_t GetType() const;
+ virtual UInt_t GetRunNumber() const;
+ virtual const UInt_t* GetEventId() const;
+ virtual const UInt_t* GetTriggerPattern() const;
+ virtual const UInt_t* GetDetectorPattern() const;
+ virtual const UInt_t* GetAttributes() const;
+ virtual const UInt_t* GetSubEventAttributes() const;
+ virtual UInt_t GetLDCId() const;
+ virtual UInt_t GetGDCId() const;
+
+ virtual Int_t GetEquipmentSize() const;
+ virtual Int_t GetEquipmentType() const;
+ virtual Int_t GetEquipmentId() const;
+ virtual const UInt_t* GetEquipmentAttributes() const;
+ virtual Int_t GetEquipmentElementSize() const;
+
+ virtual Bool_t ReadHeader();
+ virtual Bool_t ReadNextData(UChar_t*& data);
+
+ virtual Bool_t Reset();
+
+ virtual Bool_t NextEvent();
+ virtual Bool_t RewindEvents();
+
+ virtual Int_t CheckData() const;
+
+ protected :
+ virtual Bool_t ReadNext(UChar_t* data, Int_t size);
+
+ Bool_t fRequireHeader; // if false, data without header is accepted
+
+ FILE* fFile; // DATE file
+ eventHeaderStruct* fEvent; // raw data super event
+ eventHeaderStruct* fSubEvent; // raw data sub event
+
+ UChar_t* fPosition; // current position in the raw data
+ UChar_t* fEnd; // end position of the current data block
+
+ private:
+ AliRawReaderDateV3(const AliRawReaderDateV3& rawReader);
+ AliRawReaderDateV3& operator = (const AliRawReaderDateV3& rawReader);
+
+ ClassDef(AliRawReaderDateV3, 0) // class for reading raw digits from a date file (version 3)
+};
+
+#endif
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff