* provided "as is" without express or implied warranty. *
**************************************************************************/
-/* $Id$ */
+// $Id$
/**
* @file AliHLTMUONDataBlockWriter.h
* @author Artur Szostak <artursz@iafrica.com>
- * @date
+ * @date 19 May 2007
* @brief Definition of a writer class for internal dimuon HLT raw data blocks.
*/
#include "AliHLTMUONTriggerRecordsBlockStruct.h"
#include "AliHLTMUONTrigRecsDebugBlockStruct.h"
-#include "AliHLTMUONTriggerChannelsBlockStruct.h"
#include "AliHLTMUONRecHitsBlockStruct.h"
#include "AliHLTMUONClustersBlockStruct.h"
#include "AliHLTMUONChannelsBlockStruct.h"
#include "AliHLTMUONMansoTracksBlockStruct.h"
#include "AliHLTMUONMansoCandidatesBlockStruct.h"
+#include "AliHLTMUONTracksBlockStruct.h"
#include "AliHLTMUONSinglesDecisionBlockStruct.h"
#include "AliHLTMUONPairsDecisionBlockStruct.h"
* variable 'size'. The data block is of type 'block_type', the data block entries
* are of type 'entries_type' and the data block type code is 'type_code'.
* The data block can be written in the following way:
- *
+ * \code
* void* buffer = somebuffer;
* AliHLTUInt32_t size = somebuffer_size;
*
* // fill the new entry...
* entry.somefield = somevalue;
* }
- *
+ * \endcode
* The slightly slower but safer method is to do the following:
- *
+ * \code
* AliHLTMUONDataBlockWriter<block_type, entries_type, type_code>
* block(buffer, size);
* if (not block.InitCommonHeader())
* // fill the new entry...
* entry->somefield = somevalue;
* }
+ * \endcode
*/
template <
class DataBlockType,
*/
AliHLTMUONDataBlockWriter(void* buffer, AliHLTUInt32_t size) :
fSize(size),
- fMaxArraySize(size - sizeof(DataBlockType)),
+ fMaxArraySize(size > sizeof(DataBlockType) ? size - sizeof(DataBlockType) : 0),
fBlock(reinterpret_cast<DataBlockType*>(buffer)),
fData(reinterpret_cast<DataElementType*>(
reinterpret_cast<DataBlockType*>(buffer) + 1
{
assert( buffer != NULL );
}
+
+ /**
+ * Copy constructor that performs a shallow copy.
+ * Since this class does not take direct ownership of the buffer, never
+ * allocates or deallocates memory, this can be allowed.
+ */
+ AliHLTMUONDataBlockWriter(const AliHLTMUONDataBlockWriter& writer)
+ {
+ fSize = writer.fSize;
+ fMaxArraySize = writer.fMaxArraySize;
+ fBlock = writer.fBlock;
+ fData = writer.fData;
+ }
+
+ /**
+ * Assignment operator performs a shallow copy.
+ * This is OK because this class does not take direct ownership of the
+ * output memory buffer.
+ */
+ AliHLTMUONDataBlockWriter& operator = (const AliHLTMUONDataBlockWriter& writer)
+ {
+ fSize = writer.fSize;
+ fMaxArraySize = writer.fMaxArraySize;
+ fBlock = writer.fBlock;
+ fData = writer.fData;
+ return *this;
+ }
/**
* Initialises the common data block header by setting the type and record
kTrigRecsDebugDataBlock
> AliHLTMUONTrigRecsDebugBlockWriter;
-typedef AliHLTMUONDataBlockWriter<
- AliHLTMUONTriggerChannelsBlockStruct,
- AliHLTMUONTriggerChannelStruct,
- kTriggerChannelsDataBlock
- > AliHLTMUONTriggerChannelsBlockWriter;
-
typedef AliHLTMUONDataBlockWriter<
AliHLTMUONRecHitsBlockStruct,
AliHLTMUONRecHitStruct,
AliHLTMUONMansoCandidateStruct,
kMansoCandidatesDataBlock
> AliHLTMUONMansoCandidatesBlockWriter;
+
+typedef AliHLTMUONDataBlockWriter<
+ AliHLTMUONTracksBlockStruct,
+ AliHLTMUONTrackStruct,
+ kTracksDataBlock
+ > AliHLTMUONTracksBlockWriter;
typedef AliHLTMUONDataBlockWriter<
AliHLTMUONSinglesDecisionBlockStruct,