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2b545cdd | 1 | //-*- Mode: C++ -*- |
2 | // $Id$ | |
6634349e | 3 | |
4 | #ifndef ALIHLTMISC_H | |
5 | #define ALIHLTMISC_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 | ||
2b545cdd | 10 | /// @file AliHLTMisc.h |
11 | /// @author Matthias Richter | |
12 | /// @date | |
13 | /// @brief Definition of various glue functions implemented in dynamically | |
14 | /// loaded libraries | |
15 | ||
16 | #include "TObject.h" | |
5bc495ef | 17 | #include "AliHLTStdIncludes.h" |
73305a93 | 18 | #include "AliHLTDataTypes.h" |
ce8105b2 | 19 | #include "AliHLTLogging.h" |
20 | #include "TClass.h" | |
21 | #include "TSystem.h" | |
2b545cdd | 22 | |
23 | class AliCDBManager; | |
24 | class AliCDBEntry; | |
73305a93 | 25 | class AliRawReader; |
5bc495ef | 26 | class AliHLTComponentDataType; |
95ea76b5 | 27 | class AliHLTGlobalTriggerDecision; |
2b545cdd | 28 | |
29 | class AliHLTMisc : public TObject { | |
30 | public: | |
31 | AliHLTMisc(); | |
32 | ~AliHLTMisc(); | |
33 | ||
34 | template<class T> | |
35 | static T* LoadInstance(const T* dummy, const char* classname, const char* library); | |
36 | ||
37 | static AliHLTMisc& Instance(); | |
38 | ||
39 | virtual int InitCDB(const char* cdbpath); | |
40 | ||
41 | virtual int SetCDBRunNo(int runNo); | |
42 | ||
43 | virtual AliCDBEntry* LoadOCDBEntry(const char* path, int runNo=-1, int version = -1, int subVersion = -1); | |
44 | ||
45 | virtual TObject* ExtractObject(AliCDBEntry* entry); | |
46 | ||
cc484ed9 | 47 | virtual int InitMagneticField() const; |
48 | ||
73305a93 | 49 | virtual AliHLTUInt64_t GetTriggerMask(AliRawReader* rawReader) const; |
50 | ||
a5e775ec | 51 | virtual Double_t GetBz(); |
52 | virtual Double_t GetBz(const Double_t *r); | |
53 | virtual void GetBxByBz(const Double_t r[3], Double_t b[3]); | |
54 | ||
95ea76b5 | 55 | virtual const TClass* IsAliESDHLTDecision() const; |
56 | virtual int Copy(const AliHLTGlobalTriggerDecision* pDecision, TObject* pESDHLTDecision) const; | |
57 | ||
2b545cdd | 58 | private: |
59 | static AliHLTMisc* fgInstance; | |
60 | ||
61 | ClassDef(AliHLTMisc, 0) | |
62 | }; | |
6634349e | 63 | |
64 | #define ALIHLTMISC_LIBRARY "libHLTrec.so" | |
65 | #define ALIHLTMISC_INIT_CDB "AliHLTMiscInitCDB" | |
66 | #define ALIHLTMISC_SET_CDB_RUNNO "AliHLTMiscSetCDBRunNo" | |
67 | ||
68 | #ifdef __cplusplus | |
69 | extern "C" { | |
70 | #endif | |
71 | ||
72 | /** | |
73 | * Init the CDB access for the running instance. | |
74 | * The method is used from the C wrapper interface utilized by the on-line | |
75 | * framework. The path of the (H)CDB is set to the specified path.<br> | |
76 | * When running from AliRoot, the CDB path is set in the startup of the | |
703bcca6 | 77 | * reconstruction.<br> |
78 | * If cdbpath is nil or empty and the CDB is not already initialized, the | |
162637e4 | 79 | * CDB storage is set to local://$ALICE_ROOT/OCDB and the run no to 0. |
6634349e | 80 | * @param cdbpath path to the CDB |
81 | * @return neg. error code if failed | |
82 | * @note function implemented in libHLTrec | |
83 | */ | |
84 | int AliHLTMiscInitCDB(const char* cdbpath); | |
85 | typedef int (*AliHLTMiscInitCDB_t)(const char* cdbpath); | |
86 | ||
6634349e | 87 | /** |
88 | * Init the Run no for the CDB access. | |
7e914051 | 89 | * @param runNo the run no |
6634349e | 90 | * @return neg. error code if failed |
91 | * @note function implemented in libHLTrec | |
92 | */ | |
93 | int AliHLTMiscSetCDBRunNo(int runNo); | |
94 | typedef int (*AliHLTMiscSetCDBRunNo_t)(int runNo); | |
95 | ||
96 | #ifdef __cplusplus | |
97 | } | |
98 | #endif | |
5bc495ef | 99 | |
ce8105b2 | 100 | template<class T> |
101 | T* AliHLTMisc::LoadInstance(const T* /*t*/, const char* classname, const char* library) | |
102 | { | |
103 | // see header file for function documentation | |
104 | int iLibResult=0; | |
105 | T* pInstance=NULL; | |
106 | AliHLTLogging log; | |
107 | TClass* pCl=NULL; | |
108 | ROOT::NewFunc_t pNewFunc=NULL; | |
109 | do { | |
110 | pCl=TClass::GetClass(classname); | |
111 | } while (!pCl && (iLibResult=gSystem->Load(library))==0); | |
112 | if (iLibResult>=0) { | |
113 | if (pCl && (pNewFunc=pCl->GetNew())!=NULL) { | |
114 | void* p=(*pNewFunc)(NULL); | |
115 | if (p) { | |
116 | pInstance=reinterpret_cast<T*>(p); | |
117 | if (!pInstance) { | |
118 | log.Logging(kHLTLogError, "AliHLTMisc::LoadInstance", "HLT Analysis", "type cast (%s) to instance failed", classname); | |
119 | } | |
120 | } else { | |
121 | log.Logging(kHLTLogError, "AliHLTMisc::LoadInstance", "HLT Analysis", "can not create instance of type %s from class descriptor", classname); | |
122 | } | |
123 | } else { | |
124 | log.Logging(kHLTLogError, "AliHLTMisc::LoadInstance", "HLT Analysis", "can not find class descriptor %s", classname); | |
125 | } | |
126 | } else { | |
127 | log.Logging(kHLTLogError, "AliHLTMisc::LoadInstance", "HLT Analysis", "can not load %s library in order to find class descriptor %s", library, classname); | |
128 | } | |
129 | return pInstance; | |
130 | } | |
131 | ||
5bc495ef | 132 | // direct printout of data type struct |
133 | ostream &operator<<(ostream &str, const AliHLTComponentDataType&); | |
134 | ||
6634349e | 135 | #endif //ALIHLTMISC_H |