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3495cce2 | 1 | // @(#) $Id: |
2 | ||
3 | #ifndef ALIHLTLOGGING_H | |
4 | #define ALIHLTLOGGING_H | |
5 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
6 | * See cxx source for full Copyright notice */ | |
7 | ||
8 | /* AliHLTLogging | |
9 | the HLT logging methods | |
10 | */ | |
11 | ||
12 | ||
13 | #include "AliHLTDataTypes.h" | |
14 | #include <TObject.h> | |
15 | #include <stdio.h> | |
16 | ||
17 | #define LOG_BUFFER_SIZE 100 // global logging buffer | |
85465857 | 18 | //#define LOG_PREFIX "" // logging prefix, for later extensions |
3495cce2 | 19 | |
85465857 | 20 | |
21 | /* the logging macros can be used inside methods of classes which inherit from | |
22 | * AliHLTLogging | |
23 | */ | |
24 | // HLTMessage is not filtered | |
25 | #define HLTMessage( ... ) LoggingVarargs(kHLTLogNone, NULL , NULL , __VA_ARGS__ ) | |
26 | ||
27 | // the following macros are filtered by the Global and Local Log Filter | |
28 | #define HLTBenchmark( ... ) LoggingVarargs(kHLTLogBenchmark, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
29 | #define HLTDebug( ... ) LoggingVarargs(kHLTLogDebug, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
30 | #define HLTInfo( ... ) LoggingVarargs(kHLTLogInfo, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
31 | #define HLTWarning( ... ) LoggingVarargs(kHLTLogWarning, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
32 | #define HLTError( ... ) LoggingVarargs(kHLTLogError, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
33 | #define HLTFatal( ... ) LoggingVarargs(kHLTLogFatal, this->Class_Name() , __func__ , __VA_ARGS__ ) | |
34 | ||
35 | // helper macro to set the keyword | |
36 | #define HLTLogKeyword(a) AliHLTKeyword __hltlog_tmpkey__LINE__(this, a) | |
37 | ||
38 | #define HLT_DEFAULT_LOG_KEYWORD "no key" | |
3495cce2 | 39 | |
40 | class AliHLTLogging { | |
41 | public: | |
42 | AliHLTLogging(); | |
43 | virtual ~AliHLTLogging(); | |
44 | ||
85465857 | 45 | // logging filter for all objects |
46 | // | |
3495cce2 | 47 | static AliHLTComponent_LogSeverity SetGlobalLogLevel(AliHLTComponent_LogSeverity iLogFilter) {fGlobalLogFilter=iLogFilter; return fGlobalLogFilter;} |
48 | ||
85465857 | 49 | // logging filter for individual object |
50 | // | |
3495cce2 | 51 | AliHLTComponent_LogSeverity SetLocalLogLevel(AliHLTComponent_LogSeverity iLogFilter) {fLocalLogFilter=iLogFilter; return fLocalLogFilter;} |
85465857 | 52 | |
53 | // set the default key word | |
54 | // the keyword is intended to simplify the use of logging macros | |
55 | // | |
56 | void SetDefaultKeyword(const char* keyword) { fpDefaultKeyword=keyword; } | |
57 | ||
58 | // set a temporary keyword | |
59 | // returns the old key value | |
60 | const char* SetKeyword(const char* keyword) | |
61 | { | |
62 | const char* currentKeyword=fpCurrentKeyword; | |
63 | fpCurrentKeyword=keyword; | |
64 | return currentKeyword; | |
65 | } | |
66 | ||
67 | // get the current keyword | |
68 | // | |
69 | const char* GetKeyword() | |
70 | { | |
71 | if (fpCurrentKeyword) return fpCurrentKeyword; | |
72 | else if (fpDefaultKeyword) return fpDefaultKeyword; | |
73 | return HLT_DEFAULT_LOG_KEYWORD; | |
74 | } | |
3495cce2 | 75 | |
5ec8e281 | 76 | static int Init(AliHLTfctLogging pFun) { fLoggingFunc=pFun; return 0;} |
3495cce2 | 77 | |
78 | // genaral logging function | |
79 | // | |
85465857 | 80 | int Logging( AliHLTComponent_LogSeverity severity, const char* origin, const char* keyword, const char* message, ... ); |
3495cce2 | 81 | |
82 | // logging function with two origin parameters, used by the log macros | |
83 | // | |
84 | int LoggingVarargs( AliHLTComponent_LogSeverity severity, const char* origin_class, const char* origin_func, ... ); | |
85 | ||
86 | // apply filter, return 1 if message should pass | |
87 | // | |
88 | int CheckFilter(AliHLTComponent_LogSeverity severity); | |
89 | ||
90 | static int Message(void * param, AliHLTComponent_LogSeverity severity, const char* origin, const char* keyword, const char* message); | |
91 | ||
92 | static const char* BuildLogString(const char *format, va_list ap); | |
93 | ||
94 | virtual void* GetParameter() {return NULL;} | |
95 | protected: | |
96 | ||
97 | private: | |
98 | static AliHLTComponent_LogSeverity fGlobalLogFilter; | |
99 | AliHLTComponent_LogSeverity fLocalLogFilter; | |
100 | static char fLogBuffer[LOG_BUFFER_SIZE]; | |
101 | static char fOriginBuffer[LOG_BUFFER_SIZE]; | |
5ec8e281 | 102 | static AliHLTfctLogging fLoggingFunc; |
85465857 | 103 | const char* fpDefaultKeyword; |
104 | const char* fpCurrentKeyword; | |
3495cce2 | 105 | |
106 | ClassDef(AliHLTLogging, 0) | |
107 | }; | |
85465857 | 108 | |
109 | /* the class AliHLTKeyword is a simple helper class used by the HLTLogKeyword macro | |
110 | * HLTLogKeyword("a keyword") creates an object of AliHLTKeyword which sets the keyword for the logging class | |
111 | * the object is destroyed automatically when the current scope is left and so the keyword is set | |
112 | * to the original value | |
113 | */ | |
114 | class AliHLTKeyword { | |
115 | public: | |
116 | AliHLTKeyword() | |
117 | { | |
118 | fpParent=NULL; | |
119 | fpOriginal=NULL; | |
120 | } | |
121 | ||
122 | AliHLTKeyword(AliHLTLogging* parent, const char* keyword) | |
123 | { | |
124 | fpOriginal=NULL; | |
125 | if (parent) { | |
126 | fpParent=parent; | |
127 | fpOriginal=fpParent->SetKeyword(keyword); | |
128 | } | |
129 | } | |
130 | ||
131 | ~AliHLTKeyword() | |
132 | { | |
133 | if (fpParent) { | |
134 | fpParent->SetKeyword(fpOriginal); | |
135 | } | |
136 | } | |
137 | ||
138 | private: | |
139 | AliHLTLogging* fpParent; | |
140 | const char* fpOriginal; | |
141 | }; | |
3495cce2 | 142 | #endif |
143 |