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itkLoggerThreadWrapper.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkLoggerThreadWrapper.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006-08-06 20:37:55 $
00007   Version:   $Revision: 1.8 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkLoggerThreadWrapper_h
00019 #define __itkLoggerThreadWrapper_h
00020 
00021 //NOTE: This class does not work under MSVS6, or gnu 2.95
00022 #if ! ( defined(_MSC_VER) || ( defined(__GNUC__) && (__GNUC__ <= 2) ))
00023 
00024 #include "itkMacro.h"
00025 #include "itkMultiThreader.h"
00026 #include "itkSimpleFastMutexLock.h"
00027 
00028 #include <string>
00029 #include <queue>
00030 
00031 namespace itk
00032 {
00033 
00044 // MSVS6 can't do this type of nested template
00045 template < class SimpleLoggerType >
00046 class LoggerThreadWrapper : public SimpleLoggerType
00047 {
00048   public:
00049   
00050     typedef LoggerThreadWrapper  Self;
00051     typedef SimpleLoggerType  Superclass;
00052     typedef SmartPointer<Self>  Pointer;
00053     typedef SmartPointer<const Self>  ConstPointer;
00054   
00056     itkTypeMacro( LoggerThreadWrapper, SimpleLoggerType );
00057 
00059     itkNewMacro( Self );
00060 
00061     typedef  typename SimpleLoggerType::OutputType   OutputType;
00062     typedef  typename SimpleLoggerType::PriorityLevelType  PriorityLevelType;
00063   
00065     typedef enum
00066       {
00067       SET_PRIORITY_LEVEL,
00068       SET_LEVEL_FOR_FLUSHING,
00069       ADD_LOG_OUTPUT,
00070       WRITE,
00071       FLUSH
00072       } OperationType;
00073 
00074   
00078     virtual void SetPriorityLevel( PriorityLevelType level );
00079 
00083     virtual PriorityLevelType GetPriorityLevel() const;
00084 
00085     virtual void SetLevelForFlushing( PriorityLevelType level );
00086     virtual PriorityLevelType GetLevelForFlushing() const;
00087   
00089     virtual void AddLogOutput( OutputType* output );
00090 
00091     virtual void Write(PriorityLevelType level, std::string const & content);
00092   
00093     virtual void Flush();
00094   
00095   protected:
00096   
00098     LoggerThreadWrapper();
00099 
00101     virtual ~LoggerThreadWrapper();
00102 
00104     virtual void PrintSelf(std::ostream &os, Indent indent) const;
00105 
00106     static ITK_THREAD_RETURN_TYPE ThreadFunction(void*);
00107   
00108   private:
00109   
00110     typedef std::queue<OperationType> OperationContainerType;
00111   
00112     typedef std::queue<std::string>  MessageContainerType;
00113   
00114     typedef std::queue<PriorityLevelType>  LevelContainerType;
00115   
00116     typedef std::queue<typename OutputType::Pointer>  OutputContainerType;
00117   
00118     MultiThreader::Pointer  m_Threader;
00119   
00120     int m_ThreadID;
00121   
00122     OperationContainerType  m_OperationQ;
00123   
00124     MessageContainerType  m_MessageQ;
00125   
00126     LevelContainerType  m_LevelQ;
00127   
00128     OutputContainerType m_OutputQ;
00129   
00130     SimpleFastMutexLock m_Mutex;
00131   
00132     SimpleFastMutexLock m_WaitMutex;
00133   
00134   };  // class LoggerThreadWrapper
00135 } // namespace itk
00136   
00137 #ifndef ITK_MANUAL_INSTANTIATION
00138 #include "itkLoggerThreadWrapper.txx"
00139 #endif
00140   
00141   
00142   
00143 #endif  // !defined (_MSC_VER)
00144 #endif  // __itkLoggerThreadWrapper_h
00145 

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