ITK  5.4.0
Insight Toolkit
itkTimeStamp.h
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1 /*=========================================================================
2  *
3  * Copyright NumFOCUS
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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16  *
17  *=========================================================================*/
18 /*=========================================================================
19  *
20  * Portions of this file are subject to the VTK Toolkit Version 3 copyright.
21  *
22  * Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
23  *
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25  * please refer to the NOTICE file at the top of the ITK source tree.
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28 #ifndef itkTimeStamp_h
29 #define itkTimeStamp_h
30 
31 #include "itkMacro.h"
32 #include "itkIntTypes.h"
33 #include <atomic>
34 #include "itkSingletonMacro.h"
35 
36 namespace itk
37 {
60 class ITKCommon_EXPORT TimeStamp
61 {
62 public:
64  using Self = TimeStamp;
65 
66  using GlobalTimeStampType = std::atomic<ModifiedTimeType>;
67 
70  static Self *
71  New();
72 
74  void
76  {
77  delete this;
78  }
79 
81  static const char *
83  {
84  return "TimeStamp";
85  }
86 
94  void
95  Modified();
96 
99  GetMTime() const
100  {
101  return m_ModifiedTime;
102  }
103 
105  bool
106  operator>(TimeStamp & ts) const
107  {
108  return (m_ModifiedTime > ts.m_ModifiedTime);
109  }
110  bool
111  operator<(TimeStamp & ts) const
112  {
113  return (m_ModifiedTime < ts.m_ModifiedTime);
114  }
118  operator ModifiedTimeType() const { return m_ModifiedTime; }
119 
120 private:
123  itkGetGlobalDeclarationMacro(GlobalTimeStampType, GlobalTimeStamp);
124 
125  ModifiedTimeType m_ModifiedTime{ 0 };
126 
132 };
133 } // end namespace itk
134 
135 #endif
itk::TimeStamp::operator>
bool operator>(TimeStamp &ts) const
Definition: itkTimeStamp.h:106
itk::TimeStamp::GetNameOfClass
static const char * GetNameOfClass()
Definition: itkTimeStamp.h:82
itk::operator<
bool operator<(const Index< VDimension > &one, const Index< VDimension > &two)
Definition: itkIndex.h:559
itk::ModifiedTimeType
SizeValueType ModifiedTimeType
Definition: itkIntTypes.h:102
itk::TimeStamp::GetMTime
ModifiedTimeType GetMTime() const
Definition: itkTimeStamp.h:99
itk::TimeStamp::Delete
void Delete()
Definition: itkTimeStamp.h:75
itkSingletonMacro.h
itk::TimeStamp::GlobalTimeStampType
std::atomic< ModifiedTimeType > GlobalTimeStampType
Definition: itkTimeStamp.h:66
itkMacro.h
itk::TimeStamp
Generate a unique, increasing time value.
Definition: itkTimeStamp.h:60
itkIntTypes.h
itk::TimeStamp::m_GlobalTimeStamp
static GlobalTimeStampType * m_GlobalTimeStamp
Definition: itkTimeStamp.h:131
itk
The "itk" namespace contains all Insight Segmentation and Registration Toolkit (ITK) classes....
Definition: itkAnnulusOperator.h:24
itk::TimeStamp::m_ModifiedTime
ModifiedTimeType m_ModifiedTime
Definition: itkTimeStamp.h:125
itkGetGlobalDeclarationMacro
#define itkGetGlobalDeclarationMacro(Type, VarName)
Definition: itkSingletonMacro.h:35
New
static Pointer New()