3 #ifndef ALIHLTCONSUMERDESCRIPTOR_H
4 #define ALIHLTCONSUMERDESCRIPTOR_H
5 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
6 * See cxx source for full Copyright notice */
8 /** @file AliHLTConsumerDescriptor.h
9 @author Matthias Richter
11 @brief Helper class to describe a consumer component.
12 @note The class is used in Offline (AliRoot) context
15 #include "AliHLTDataBuffer.h"
18 * @class AliHLTConsumerDescriptor
19 * @brief Helper class to describe a consumer component.
21 * There is unfortunately no unique determination of the data type from the
22 * component itself possible, thats why both component and data type have to
23 * be initialized and are stored in a compound. The class is intended to make
26 * @note This class is only used for the @ref alihlt_system.
28 * @ingroup alihlt_system
30 class AliHLTConsumerDescriptor : public TObject, public AliHLTLogging {
32 /** standard constructur */
33 AliHLTConsumerDescriptor();
35 * @param pConsumer pointer to the consumer component
37 AliHLTConsumerDescriptor(AliHLTComponent* pConsumer);
39 ~AliHLTConsumerDescriptor();
42 * Get the component of this descriptor.
43 * @return pointer to the component
45 AliHLTComponent* GetComponent() {return fpConsumer;}
48 * Set an active data segment.
49 * the pointer will be handled in a container, no allocation, copy or
51 * @param offset offset of the segment in the buffer
52 * @param size size of the segment in the buffer
53 * @return >=0 if succeeded
55 int SetActiveDataSegment(AliHLTUInt32_t offset, AliHLTUInt32_t size);
58 * Check whether there is an active data segment of certain size with
60 * @param offset offset of the data segment in the data buffer
61 * @param size size of the data segment in the data buffer
62 * @return > if existend, 0 if not
64 int CheckActiveDataSegment(AliHLTUInt32_t offset, AliHLTUInt32_t size);
66 /** find an active data segment of certain size with certain offset
67 * will see if this is necessary
68 * @param offset offset of the data segment in the data buffer
69 * @param size size of the data segment in the data buffer
70 * @return offset of the data segment
72 //AliHLTUInt32_t FindActiveDataSegment(AliHLTUInt32_t offset, AliHLTUInt32_t size);
74 /** get the number of active segments for this consumer
75 * @return number of active segments
77 int GetNofActiveSegments() {return fSegments.size();};
81 int ReleaseActiveDataSegment(AliHLTUInt32_t offset, AliHLTUInt32_t size);
84 /** copy constructor prohibited */
85 AliHLTConsumerDescriptor(const AliHLTConsumerDescriptor&);
86 /** assignment operator prohibited */
87 AliHLTConsumerDescriptor& operator=(const AliHLTConsumerDescriptor&);
89 /** consumer object */
90 AliHLTComponent* fpConsumer; //! transient
92 /** list of data segments */
93 vector<AliHLTDataBuffer::AliHLTDataSegment> fSegments; // see above
95 ClassDef(AliHLTConsumerDescriptor, 0)
98 #endif // ALIHLTDATABUFFER_H