3 /**************************************************************************
4 * This file is property of and copyright by the ALICE HLT Project *
5 * ALICE Experiment at CERN, All rights reserved. *
7 * Primary Authors: Matthias Richter <Matthias.Richter@ift.uib.no> *
8 * for The ALICE HLT Project. *
10 * Permission to use, copy, modify and distribute this software and its *
11 * documentation strictly for non-commercial purposes is hereby granted *
12 * without fee, provided that the above copyright notice appears in all *
13 * copies and that both the copyright notice and this permission notice *
14 * appear in the supporting documentation. The authors make no claims *
15 * about the suitability of this software for any purpose. It is *
16 * provided "as is" without express or implied warranty. *
17 **************************************************************************/
19 /** @file AliHLTDataSource.cxx
20 @author Matthias Richter
22 @brief Base class implementation for HLT data source components. */
28 #include "AliHLTDataSource.h"
30 /** ROOT macro for the implementation of ROOT specific class methods */
31 ClassImp(AliHLTDataSource)
33 AliHLTDataSource::AliHLTDataSource()
35 // see header file for class documentation
37 // refer to README to build package
39 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
42 void* AliHLTDataSource::fgpSpecialEvent=NULL;
43 int AliHLTDataSource::fgSpecialEventSize=0;
44 AliHLTComponentDataType AliHLTDataSource::fgSpecialEventDataType=kAliHLTVoidDataType;
45 AliHLTUInt32_t AliHLTDataSource::fgSpecialEventSpecification=kAliHLTVoidDataSpec;
47 AliHLTDataSource::~AliHLTDataSource()
49 // see header file for class documentation
52 void AliHLTDataSource::GetInputDataTypes( vector<AliHLTComponentDataType>& list)
54 // see header file for class documentation
55 list.clear(); // there are no input data types
59 int AliHLTDataSource::DoProcessing( const AliHLTComponentEventData& evtData,
60 const AliHLTComponentBlockData* /*blocks*/,
61 AliHLTComponentTriggerData& trigData,
62 AliHLTUInt8_t* outputPtr,
64 vector<AliHLTComponentBlockData>& outputBlocks,
65 AliHLTComponentEventDoneData*& edd )
67 // see header file for class documentation
69 if (evtData.fBlockCnt > 0) {
70 HLTWarning("Data source component skips input data blocks");
72 if (fgpSpecialEvent==NULL || fgSpecialEventSize==0) {
73 // normal event publishing
74 iResult=GetEvent(evtData, trigData, outputPtr, size, outputBlocks);
75 HLTDebug("component %s (%p) GetEvent finished (%d)", GetComponentID(), this, iResult);
77 // publish special event
78 if (size>=(unsigned)fgSpecialEventSize) {
79 memcpy(outputPtr, fgpSpecialEvent, fgSpecialEventSize);
80 AliHLTComponentBlockData bd;
83 bd.fSize=fgSpecialEventSize;
84 bd.fDataType=fgSpecialEventDataType;
85 bd.fSpecification=fgSpecialEventSpecification;
86 outputBlocks.push_back(bd);
96 int AliHLTDataSource::GetEvent( const AliHLTComponentEventData& evtData,
97 AliHLTComponentTriggerData& trigData,
98 AliHLTUInt8_t* /*outputPtr*/,
99 AliHLTUInt32_t& /*size*/,
100 vector<AliHLTComponentBlockData>& /*outputBlocks*/ )
102 // we just forward to the high level method, all other parameters already
103 // have been stored internally
104 return GetEvent(evtData, trigData);
107 int AliHLTDataSource::GetEvent( const AliHLTComponentEventData& /*evtData*/, AliHLTComponentTriggerData& /*trigData*/)
109 HLTFatal("no processing method implemented");
113 AliHLTDataSource::AliSpecialEventGuard::AliSpecialEventGuard(AliHLTRunDesc* pDesc, AliHLTComponentDataType dt, AliHLTUInt32_t spec)
115 AliHLTDataSource::fgpSpecialEvent=pDesc;
116 AliHLTDataSource::fgSpecialEventSize=sizeof(AliHLTRunDesc);
117 AliHLTDataSource::fgSpecialEventDataType=dt;
118 AliHLTDataSource::fgSpecialEventSpecification=spec;
121 AliHLTDataSource::AliSpecialEventGuard::~AliSpecialEventGuard()
123 AliHLTDataSource::fgpSpecialEvent=NULL;
124 AliHLTDataSource::fgSpecialEventSize=0;
125 AliHLTDataSource::fgSpecialEventDataType=kAliHLTVoidDataType;
126 AliHLTDataSource::fgSpecialEventSpecification=kAliHLTVoidDataSpec;