00001 /*========================================================================= 00002 00003 Program: Visualization Toolkit 00004 Module: $RCSfile: vtkMutexLock.h,v $ 00005 00006 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen 00007 All rights reserved. 00008 See Copyright.txt or http://www.kitware.com/Copyright.htm for details. 00009 00010 This software is distributed WITHOUT ANY WARRANTY; without even 00011 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00012 PURPOSE. See the above copyright notice for more information. 00013 00014 =========================================================================*/ 00023 #ifndef __vtkMutexLock_h 00024 #define __vtkMutexLock_h 00025 00026 00027 #include "vtkObject.h" 00028 00029 //BTX 00030 00031 #ifdef VTK_USE_SPROC 00032 #include <abi_mutex.h> // Needed for SPROC implementation of mutex 00033 typedef abilock_t vtkMutexType; 00034 #endif 00035 00036 #if defined(VTK_USE_PTHREADS) || defined(VTK_HP_PTHREADS) 00037 #include <pthread.h> // Needed for PTHREAD implementation of mutex 00038 typedef pthread_mutex_t vtkMutexType; 00039 #endif 00040 00041 #ifdef VTK_USE_WIN32_THREADS 00042 typedef vtkWindowsHANDLE vtkMutexType; 00043 #endif 00044 00045 #ifndef VTK_USE_SPROC 00046 #ifndef VTK_USE_PTHREADS 00047 #ifndef VTK_USE_WIN32_THREADS 00048 typedef int vtkMutexType; 00049 #endif 00050 #endif 00051 #endif 00052 00053 // Mutex lock that is not a vtkObject. 00054 class VTK_COMMON_EXPORT vtkSimpleMutexLock 00055 { 00056 public: 00057 // left public purposely 00058 vtkSimpleMutexLock(); 00059 virtual ~vtkSimpleMutexLock(); 00060 00061 static vtkSimpleMutexLock *New(); 00062 00063 void Delete() {delete this;} 00064 00066 void Lock( void ); 00067 00069 void Unlock( void ); 00070 00071 protected: 00072 vtkMutexType MutexLock; 00073 }; 00074 00075 //ETX 00076 00077 class VTK_COMMON_EXPORT vtkMutexLock : public vtkObject 00078 { 00079 public: 00080 static vtkMutexLock *New(); 00081 00082 vtkTypeRevisionMacro(vtkMutexLock,vtkObject); 00083 void PrintSelf(ostream& os, vtkIndent indent); 00084 00086 void Lock( void ); 00087 00089 void Unlock( void ); 00090 00091 protected: 00092 vtkSimpleMutexLock SimpleMutexLock; 00093 vtkMutexLock() {}; 00094 private: 00095 vtkMutexLock(const vtkMutexLock&); // Not implemented. 00096 void operator=(const vtkMutexLock&); // Not implemented. 00097 }; 00098 00099 00100 inline void vtkMutexLock::Lock( void ) 00101 { 00102 this->SimpleMutexLock.Lock(); 00103 } 00104 00105 inline void vtkMutexLock::Unlock( void ) 00106 { 00107 this->SimpleMutexLock.Unlock(); 00108 } 00109 00110 #endif
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