ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkRealTimeClock.h
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1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
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9  * http://www.apache.org/licenses/LICENSE-2.0.txt
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14  * See the License for the specific language governing permissions and
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17  *=========================================================================*/
18 #ifndef __itkRealTimeClock_h
19 #define __itkRealTimeClock_h
20 
21 #include "itkMacro.h"
22 #include "itkObject.h"
23 #include "itkObjectFactory.h"
24 #include "itkRealTimeStamp.h"
25 
26 namespace itk
27 {
39 class ITKCommon_EXPORT RealTimeClock:public Object
40 {
41 public:
43  typedef Object Superclass;
46 
48  itkTypeMacro(RealTimeClock, Object);
49 
51  itkNewMacro(Self);
52 
54  typedef double TimeStampType;
55 
57  typedef double FrequencyType;
58 
60  TimeStampType GetTimeInSeconds() const;
61 
63  itkGetConstMacro(Frequency, FrequencyType);
64 
66  RealTimeStamp GetRealTimeStamp() const;
67 
68 protected:
69 
71  RealTimeClock();
72 
74  virtual ~RealTimeClock();
75 
77  virtual void PrintSelf(std::ostream & os, Indent indent) const;
78 
79 private:
83 
84  // We hide this method in the private section, because it returns the
85  // modified time of the itk::Object. That modified time is ambiguous with
86  // the role of the RealTimeStamp.
87  virtual const TimeStamp & GetTimeStamp() const;
88 };
89 } // end of namespace itk
90 
91 #endif // __itkRealTimeClock_h
92