source: releases/Mars.2014.05.26/mbase/MLog.h@ 18481

Last change on this file since 18481 was 14443, checked in by tbretz, 12 years ago
Added some missing std::
File size: 7.6 KB
Line 
1/* ======================================================================== *\
2! $Name: not supported by cvs2svn $:$Id: MLog.h,v 1.38 2008-02-24 11:37:48 tbretz Exp $
3\* ======================================================================== */
4#ifndef MARS_MLog
5#define MARS_MLog
6
7#ifndef ROOT_TObject
8#include <TObject.h>
9#endif
10#ifndef ROOT_TString
11#include <TString.h>
12#endif
13#ifndef ROOT_TSystem
14#include <TSystem.h>
15#endif
16
17#include <iostream> // base classes for MLog
18
19class MArgs;
20
21class TEnv;
22class TMutex;
23class TGTextView;
24
25class MLogPlugin;
26
27class MLog : public std::streambuf, public std::ostream, public TObject
28{
29public:
30 typedef enum _flags {
31 eStdout = 0x001,
32 eStderr = 0x002,
33 eFile = 0x004,
34 eGui = 0x008,
35 eNoColors = 0x400 //BIT(15)
36 } Flags_t;
37
38 enum ELogBits {
39 kHasChanged = BIT(14) // if gui has changed
40 };
41
42 enum ELogType {
43 kDefault,
44 kColor,
45 kBlackWhite
46 };
47
48private:
49 enum {
50 kIsUnderlined = BIT(15)//, kIsAutoIntro = BIT(16)
51 };
52 static const char kESC;
53 static const char *const kEsc;
54 static const char *const kReset;
55 static const char *const kRed;
56 static const char *const kGreen;
57 static const char *const kYellow;
58 static const char *const kBlue;
59 static const char *const kUnderline;
60 static const char *const kBlink;
61 static const char *const kBright;
62 static const char *const kDark;
63
64 static const int fgBufferSize = 160; // two standard lines
65
66 char fBuffer; //!
67 char fBase[fgBufferSize+1]; //! Buffer to store the data in
68 char *fPPtr; //! Pointer to present position in buffer
69 const char *fEPtr; //! Pointer to end of buffer
70
71 UInt_t fOutputLevel; //! Present output level of the stream
72 UInt_t fDebugLevel; //! Present global debug level
73 UInt_t fDevice; //! Flag to indicate the present streams
74
75 Bool_t fIsNull; //! Switch output completely off
76
77 std::ofstream *fOut; //! possible file output stream
78 Bool_t fOutAllocated; //! flag if fout is created by MLogging
79 TGTextView *fGui; //! Text View output
80
81 Bool_t fIsDirectGui; //! Pipe text directly to the GUI (for single threaded environments)
82 TString **fGuiLines; //! Lines to pipe to gui
83 Int_t fNumLines; //!
84 TString fGuiLine; //!
85
86#ifdef _REENTRANT
87 TMutex *fMuxGui; //! Mutex locking access of TGListBox
88 TMutex *fMuxStream; //! Mutex locking access to streaming
89#endif
90
91 TList *fPlugins;
92
93 void Init();
94
95 void WriteBuffer();
96 int sync();
97 int overflow(int i); // i=EOF means not a real overflow
98
99 void AllocateFile(const char *f);
100 void DeallocateFile();
101 void ReallocateFile(const char *f);
102 void CheckFlag(Flags_t chk, int flag);
103 void Output(std::ostream &out, int len);
104 void AddGuiLine(const TString& line);
105
106 // User defined error handling (see TError.h)
107 static bool ErrorHandlerIgnore(Int_t level);
108 static void ErrorHandlerPrint(Int_t level, const char *location, const char *msg);
109 static void ErrorHandlerCol(Int_t level, Bool_t abort, const char *location, const char *msg);
110 static void ErrorHandlerAll(Int_t level, Bool_t abort, const char *location, const char *msg);
111
112public:
113
114 MLog(int i=eStdout);
115 MLog(std::ofstream &out);
116 MLog(TGTextView &out);
117 MLog(const char *fname, int flag=-1);
118
119 MLog(MLog const& log) : std::ios(), std::streambuf(), std::ostream((std::streambuf*)&log), TObject()
120 {
121 fOutputLevel = log.fOutputLevel;
122 fDebugLevel = log.fDebugLevel;
123 fDevice = log.fDevice;
124 }
125 ~MLog();
126
127 static TString Intro();
128 static void RedirectErrorHandler(ELogType typ=kColor);
129
130 bool LockUpdate(const char *msg);
131 bool UnLockUpdate(const char *msg);
132
133 bool Lock(const char *msg="");
134 bool UnLock(const char *msg="");
135
136 void EnableDirectGui() { fIsDirectGui = kTRUE; }
137 void DisableDirectGui() { fIsDirectGui = kFALSE; }
138 void UpdateGui();
139
140 void Underline();
141
142 void SetDebugLevel(int i) { fDebugLevel = i; }
143 int GetDebugLevel() const { return fDebugLevel; }
144 void SetOutputLevel(int i) { fOutputLevel = i; }
145 int GetOutputLevel() const { return fOutputLevel; }
146 void SetOutputDevice(int i) { fDevice = i; }
147 void EnableOutputDevice(Flags_t f) { fDevice |= f; }
148 void DisableOutputDevice(Flags_t f) { fDevice &= ~f; }
149 void operator=(std::ofstream &sout) { SetOutputFile(sout); }
150 void operator=(TGTextView *sout) { SetOutputGui(sout); }
151 //void SetAutoIntro(Bool_t b=kTRUE) { b ? SetBit(kIsAutoIntro) : SetBit(kIsAutoIntro); }
152
153 Bool_t IsNullOutput() const { return fIsNull; }
154 Bool_t IsOutputDeviceEnabled(int i) const { return fDevice & i; }
155
156 void SetOutputGui(TGTextView *sout, int flag=-1)
157 {
158 fGui = sout;
159 CheckFlag(eGui, flag);
160 }
161
162 void SetOutputFile(std::ofstream &sout, int flag=-1)
163 {
164 //
165 // Set new output file by a given stream. The new output
166 // file is not deleted automatically. If no flag is specified
167 // the state of the file-device stream is unchanged.
168 // if the a flag is specified the state is changed
169 // in correspondance to the flag
170 //
171 DeallocateFile();
172 fOut = &sout;
173 CheckFlag(eFile, flag);
174 }
175
176 void SetOutputFile(const char *f=NULL, int flag=-1)
177 {
178 //
179 // Set new output file by name. The new output file must
180 // not be deleted by the user. If no flag is specified
181 // the state of the file-device stream is unchanged.
182 // if the a flag is specified the state is changed
183 // in correspondance to the flag
184 //
185 ReallocateFile(f);
186 CheckFlag(eFile, flag);
187 }
188
189 std::ofstream &GetOutputFile()
190 {
191 //
192 // Get the file output stream from MLogging
193 // if no file output stream is existing yet it will be created.
194 // For the creating a C-Temporary file name is used.
195 // if the stream is created here the user must not delete it
196 //
197 // What a pitty, but it seems, that there is now way to ask
198 // an ofstream for the corresponding file name. Elsewhise
199 // I would implement a GetFileName-function, too.
200 //
201 if (!fOut)
202 ReallocateFile(NULL);
203 return *fOut;
204 }
205
206 // FIXME: Switch off colors when on....
207 void SetNullOutput(Bool_t n=kTRUE) { fIsNull = n; }
208
209 void SetNoColors(Bool_t flag=kTRUE) { flag ? SetBit(eNoColors) : ResetBit(eNoColors); }
210
211 void Setup(MArgs &arg);
212 void Usage();
213
214 void ReadEnv(const TEnv &env, TString prefix="", Bool_t print=kFALSE);
215 void WriteEnv(TEnv &env, TString prefix="", Bool_t print=kFALSE) const;
216
217 MLog &Separator(TString str="", int outlvl=0)
218 {
219 if (!str.IsNull())
220 {
221 const Int_t l = (78-str.Length())/2-3;
222 str.Prepend("={ ");
223 str.Prepend('-', l<1?1:l);
224 str.Append(" }=");
225 str.Append('-', l<1?1:l);
226 }
227 if (str.Length()<78)
228 str.Append('-', 78-str.Length());
229
230 const int save = fOutputLevel;
231 SetOutputLevel(outlvl);
232 (*this) << str << std::endl;
233 fOutputLevel = save;
234
235 return *this;
236 }
237
238 void AddPlugin(MLogPlugin *plug);
239
240 ClassDef(MLog, 0) // This is what we call 'The logging system'
241};
242
243//
244// This is the definition of a global output stream, which by
245// default pipes all output to the stdout
246//
247R__EXTERN MLog gLog;
248
249#endif
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