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65106d07 | 1 | // -*- Mode: C++ -*- |
2 | // $Id$ | |
3 | ||
4 | #ifndef ALIHLTROOTSCHEMAEVOLUTIONCOMPONENT_H | |
5 | #define ALIHLTROOTSCHEMAEVOLUTIONCOMPONENT_H | |
6 | //* This file is property of and copyright by the ALICE HLT Project * | |
7 | //* ALICE Experiment at CERN, All rights reserved. * | |
8 | //* See cxx source for full Copyright notice * | |
9 | ||
10 | /** @file AliHLTRootSchemaEvolutionComponent.h | |
11 | @author Matthias Richter | |
12 | @date 2009-10-18 | |
13 | @brief Handler component for ROOT schema evolution of streamed objects | |
14 | */ | |
15 | ||
16 | #include "AliHLTProcessor.h" | |
17 | ||
18 | class TObjArray; | |
19 | ||
20 | /** | |
21 | * @class AliHLTRootSchemaEvolutionComponent | |
22 | * | |
23 | * <h2>General properties:</h2> | |
24 | * | |
25 | * Component ID: \b ROOTFileWriter <br> | |
26 | * Library: \b libAliHLTUtil.so <br> | |
27 | * Input Data Types: ::kAliHLTAnyDataType <br> | |
28 | * Output Data Types: none <br> | |
29 | * | |
30 | * <h2>Mandatory arguments:</h2> | |
31 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
32 | * | |
33 | * <h2>Optional arguments:</h2> | |
34 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
35 | * \li -fxs<=off> <br> | |
36 | * push streamer info to FXS, fetched by Shuttle and store in the entry | |
37 | * HLT/Calib/StreamerInfo | |
38 | * default off | |
39 | * \li -hltout<=[all,first,eor,off]> <br> | |
40 | * push streamer info to output, the streamer info is stored in the | |
41 | * events in all, the first, and/or the EOR. | |
42 | * | |
43 | * <h2>Configuration:</h2> | |
44 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
45 | * Configuration by component arguments. | |
46 | * | |
47 | * <h2>Default CDB entries:</h2> | |
48 | * The component loads no CDB entries. | |
49 | * | |
50 | * <h2>Performance:</h2> | |
51 | * The component does not process any event data. | |
52 | * | |
53 | * <h2>Memory consumption:</h2> | |
54 | * The component does not process any event data. | |
55 | * | |
56 | * <h2>Output size:</h2> | |
57 | * Depending on the mode. | |
58 | * | |
59 | * @ingroup alihlt_util_components | |
60 | */ | |
61 | class AliHLTRootSchemaEvolutionComponent : public AliHLTProcessor | |
62 | { | |
63 | public: | |
64 | /// standard constructor | |
65 | AliHLTRootSchemaEvolutionComponent(); | |
66 | /// destructor | |
67 | virtual ~AliHLTRootSchemaEvolutionComponent(); | |
68 | ||
69 | /// inherited from AliHLTComponent: return id of the component. | |
70 | virtual const char* GetComponentID() {return "ROOTSchemaEvolutionComponent";}; | |
71 | /// inherited from AliHLTComponent: input data types | |
72 | virtual void GetInputDataTypes(AliHLTComponentDataTypeList&); | |
73 | /// inherited from AliHLTComponent: output data types | |
74 | virtual AliHLTComponentDataType GetOutputDataType(); | |
75 | /// inherited from AliHLTComponent: output data size | |
76 | virtual void GetOutputDataSize(unsigned long&, double&); | |
77 | ||
78 | /// inherited from AliHLTComponent: spawn function, create an instance. | |
79 | virtual AliHLTComponent* Spawn() {return new AliHLTRootSchemaEvolutionComponent;} | |
80 | ||
81 | enum { | |
82 | /// push streamer info to the HLTOUT for the first event | |
83 | kHLTOUTatFirstEvent = 0x1, | |
84 | /// push streamer info to the HLTOUT for all events | |
85 | kHLTOUTatAllEvents = 0x2, | |
86 | /// push streamer info to the HLTOUT at EOR, this has no relevance | |
87 | /// for reconstruction as it is too late and just in one raw file, | |
88 | /// but it allows archival at the end of the run | |
89 | kHLTOUTatEOR = 0x4, | |
90 | /// push streamer info to FXS | |
91 | kFXS = 0x100, | |
92 | }; | |
93 | ||
94 | /// Update the array of known streamer infos from a list of infos | |
95 | /// Checks whether the provided infos are already there in the present version | |
96 | /// and adds if it is a new info. | |
97 | int UpdateStreamerInfos(const TList* list, TObjArray* infos) const; | |
98 | ||
99 | protected: | |
100 | /// inherited from AliHLTComponent: custom initialization | |
101 | int DoInit( int argc, const char** argv ); | |
102 | /// inherited from AliHLTComponent: cleanup | |
103 | int DoDeinit(); | |
104 | ||
105 | /// inherited from AliHLTProcessor processing | |
106 | virtual int DoEvent( const AliHLTComponentEventData& evtData, | |
107 | AliHLTComponentTriggerData& trigData ); | |
108 | ||
109 | using AliHLTProcessor::DoEvent; | |
110 | ||
111 | /** | |
112 | * Inherited from AliHLTComponent | |
113 | * Scan one argument and adjacent parameters. | |
114 | * @return number of scanned parameters, neg. error code if failed | |
115 | */ | |
116 | virtual int ScanConfigurationArgument(int argc, const char** argv); | |
117 | ||
118 | void SetBits(AliHLTUInt32_t b) {fFlags|=b;} | |
119 | void ClearBits(AliHLTUInt32_t b) {fFlags&=~b;} | |
120 | bool TestBits(AliHLTUInt32_t b) {return (fFlags&b) != 0;} | |
121 | ||
122 | private: | |
123 | /** copy constructor prohibited */ | |
124 | AliHLTRootSchemaEvolutionComponent(const AliHLTRootSchemaEvolutionComponent&); | |
125 | /** assignment operator prohibited */ | |
126 | AliHLTRootSchemaEvolutionComponent& operator=(const AliHLTRootSchemaEvolutionComponent&); | |
127 | ||
128 | AliHLTUInt32_t fFlags; //! property flags | |
129 | ||
130 | TObjArray* fpStreamerInfos; //! array of streamer infos | |
131 | ||
132 | AliHLTUInt32_t fFXSPrescaler; //! prescalar for the publishing to FXS | |
133 | ||
134 | static const char* fgkConfigurationObject; //! configuration object | |
135 | ||
136 | ClassDef(AliHLTRootSchemaEvolutionComponent, 1) // ROOT schema evolution component | |
137 | }; | |
138 | #endif |