gdcmDebug.h

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00001 /*=========================================================================
00002                                                                                 
00003   Program:   gdcm
00004   Module:    $RCSfile: gdcmDebug.h,v $
00005   Language:  C++
00006   Date:      $Date: 2007/08/22 16:14:03 $
00007   Version:   $Revision: 1.58 $
00008                                                                                 
00009   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
00010   l'Image). All rights reserved. See Doc/License.txt or
00011   http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
00012                                                                                 
00013      This software is distributed WITHOUT ANY WARRANTY; without even
00014      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00015      PURPOSE.  See the above copyright notices for more information.
00016                                                                                 
00017 =========================================================================*/
00018 
00019 #ifndef _GDCMDEBUG_H_
00020 #define _GDCMDEBUG_H_
00021 
00022 #include "gdcmCommon.h"
00023 #include "gdcmCommand.h"
00024 
00025 #include <iostream>
00026 #include <sstream>
00027 #include <fstream>
00028 #include <assert.h>
00029 #include <errno.h>
00030 
00031 namespace GDCM_NAME_SPACE
00032 {
00033 //-----------------------------------------------------------------------------
00034 class CommandManager;
00035 
00036 //-----------------------------------------------------------------------------
00070 class GDCM_EXPORT Debug
00071 {
00072 public:
00073    Debug();
00074    ~Debug();
00075 
00079    static void SetDebugFlag (bool flag);
00081    static bool GetDebugFlag () {return DebugFlag; }
00083    static void DebugOn  () { SetDebugFlag(true);  }
00085    static void DebugOff () { SetDebugFlag(false); }
00086    
00089    static void SetLogFlag (bool flag);
00091    static bool GetLogFlag () {return LogFlag; }
00093    static void LogOn  () { SetLogFlag(true);  }
00095    static void LogOff () { SetLogFlag(false); } 
00096    
00099    static void SetWarningFlag (bool flag);
00101    static bool GetWarningFlag () {return WarningFlag; }
00103    static void WarningOn  () { SetWarningFlag(true);  }
00105    static void WarningOff () { SetWarningFlag(false); }      
00106 
00109    static void SetOutputToFile (bool flag);
00110    static bool GetOutputToFile ();
00112    static void OutputToFileOn  () { SetOutputToFile(true);  }
00114    static void OutputToFileOff () { SetOutputToFile(false); }
00115 
00116    static void SetOutputFileName (std::string const &filename);
00117 
00118    static std::ostream &GetOutput ();
00119 
00120    static void SendToOutput(unsigned int type,std::string const &msg,
00121                             const Base *object = NULL);
00122 
00123 private:
00124    static bool WarningFlag;
00125    static bool LogFlag;
00126    static bool DebugFlag;
00127 
00128    static bool OutputToFile;
00129 
00130    static std::ofstream OutputFileStream;
00131    static std::ostream &StandardStream;
00132 
00133    static const int LINE_LENGTH;
00134 };
00135 
00136 } // end namespace gdcm
00137 
00138 // Here we define function this is the only way to be able to pass
00139 // stuff with indirection like:
00140 // gdcmDebug( "my message:" << i << '\t' ); 
00141 // You cannot use function unless you use vnsprintf ...
00142 
00143 // __FUNCTION is not always defined by preprocessor
00144 // In c++ we should use __PRETTY_FUNCTION__ instead...
00145 #ifdef GDCM_COMPILER_HAS_FUNCTION
00146 // Handle particular case for GNU C++ which also defines __PRETTY_FUNCTION__
00147 // which is a lot nice in C++
00148 #ifdef __BORLANDC__
00149 #  define __FUNCTION__ __FUNC__
00150 #endif
00151 #ifdef __GNUC__
00152 #  define GDCM_FUNCTION __PRETTY_FUNCTION__
00153 #else
00154 #  define GDCM_FUNCTION __FUNCTION__ 
00155 #endif //__GNUC__
00156 #else
00157 #  define GDCM_FUNCTION "<unknow>"
00158 #endif //GDCM_COMPILER_HAS_FUNCTION
00159 
00167 #define gdcmMessageBodyMacro(type, obj, msg, adds)             \
00168 {                                                              \
00169    std::ostringstream osmacro;                                 \
00170    osmacro << "In " __FILE__ ", line " << __LINE__             \
00171            << ", function " << GDCM_FUNCTION << "\n"           \
00172            << adds << msg << "\n\n";                           \
00173    GDCM_NAME_SPACE::Debug::SendToOutput(type,osmacro.str(),obj);\
00174 }
00175 
00176 // ------------------------------------------------------------------------
00177 
00183 #ifdef NDEBUG
00184 #define gdcmDebugBodyMacro(obj, msg) {}
00185 #define gdcmDebugMacro(msg) {}
00186 #define gdcmStaticDebugMacro(msg) {}
00187 #else
00188 #define gdcmDebugBodyMacro(obj, msg)                           \
00189 {                                                              \
00190    if( Debug::GetDebugFlag() )                                 \
00191    {                                                           \
00192       std::string adds="";                                     \
00193       if( errno )                                              \
00194       {                                                        \
00195          adds = "Last system error was: ";                     \
00196          adds += strerror(errno);                              \
00197          adds += "\n";                                         \
00198       }                                                        \
00199       gdcmMessageBodyMacro(GDCM_NAME_SPACE::CMD_DEBUG,obj,msg,adds);\
00200    }                                                           \
00201 }
00202 #define gdcmDebugMacro(msg)                                    \
00203    gdcmDebugBodyMacro(NULL,msg)
00204 #define gdcmStaticDebugMacro(msg)                              \
00205    gdcmDebugBodyMacro(NULL,msg)
00206 #endif //NDEBUG
00207 
00208 // ------------------------------------------------------------------------
00209 
00215 // No NDEBUG test to always have a return of warnings !!!
00216 // -> Rien compris! JPRx
00217 #define gdcmLogBodyMacro(obj, msg)                         \
00218 {                                                          \
00219    if( Debug::GetLogFlag() )                               \
00220       gdcmMessageBodyMacro(GDCM_NAME_SPACE::CMD_LOG,obj,msg,"");\
00221 }
00222 #define gdcmLogMacro(msg)                                  \
00223    gdcmLogBodyMacro(this,msg)
00224 #define gdcmStaticLogMacro(msg)                            \
00225    gdcmLogBodyMacro(NULL,msg)
00226    
00227 // ------------------------------------------------------------------------
00228 
00234 // No NDEBUG test to always have a return of warnings !!!
00235 // -> Rien compris! JPRx
00236 #define gdcmWarningBodyMacro(obj, msg)                         \
00237 {                                                              \
00238    if( Debug::GetWarningFlag() )                               \
00239       gdcmMessageBodyMacro(GDCM_NAME_SPACE::CMD_WARNING,obj,msg,"");\
00240 }
00241 #define gdcmWarningMacro(msg)                                  \
00242    gdcmWarningBodyMacro(this,msg)
00243 #define gdcmStaticWarningMacro(msg)                            \
00244    gdcmWarningBodyMacro(NULL,msg)
00245 
00246 // ------------------------------------------------------------------------
00247 
00254 // No NDEBUG test to always have a return of errors !!!
00255 // -> Rien compris! JPRx
00256 #define gdcmErrorBodyMacro(obj, msg)                           \
00257 {                                                              \
00258    gdcmMessageBodyMacro(GDCM_NAME_SPACE::CMD_ERROR,obj,msg,"");\
00259 }
00260 #define gdcmErrorMacro(msg)                                    \
00261    gdcmErrorBodyMacro(this,msg)
00262 #define gdcmStaticErrorMacro(msg)                              \
00263    gdcmErrorBodyMacro(NULL,msg)
00264 
00265 // ------------------------------------------------------------------------
00266 
00276 // No NDEBUG test to always have a return of asserts !!!
00277 // -> Rien compris! JPRx
00278 #define gdcmAssertBodyMacro(obj, arg)                          \
00279 {                                                              \
00280    if( !(arg) )                                                \
00281    {                                                           \
00282       gdcmMessageBodyMacro(GDCM_NAME_SPACE::CMD_ASSERT,obj,"","");\
00283       assert ( arg );                                          \
00284    }                                                           \
00285 }
00286 #define gdcmAssertMacro(msg)                                   \
00287    gdcmAssertBodyMacro(NULL,msg)
00288 #define gdcmStaticAssertMacro(msg)                             \
00289    gdcmAssertBodyMacro(NULL,msg)
00290 
00291 //-----------------------------------------------------------------------------
00292 #endif

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