Orocos Real-Time Toolkit  2.9.0
DataSourceTime.hpp
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1 /***************************************************************************
2  tag: Peter Soetens Wed Jan 18 14:11:39 CET 2006 DataSourceTime.hpp
3 
4  DataSourceTime.hpp - description
5  -------------------
6  begin : Wed January 18 2006
7  copyright : (C) 2006 Peter Soetens
8  email : peter.soetens@mech.kuleuven.be
9 
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37 
38 
39 #include "../os/TimeService.hpp"
40 #include "../internal/DataSource.hpp"
41 #include "rtt-scripting-config.h"
42 
43 namespace RTT
44 { namespace scripting {
45 
51  : public internal::DataSource<os::TimeService::Seconds>
52  {
54  mutable os::TimeService::Seconds last;
55  os::TimeService* ts;
56  public:
58  : stamp( 0 ), last(0), ts( os::TimeService::Instance() )
59  {}
60 
62  return last = ts->secondsSince(stamp);
63  }
64 
66  return last;
67  }
68 
70  return last;
71  }
72 
73  void reset() {
74  // get new pointer to ts also ?
75  stamp = ts->getTicks();
76  }
77 
78  DataSourceTime* clone() const {
79  return new DataSourceTime();
80  }
81 
82  DataSourceTime* copy( std::map<const base::DataSourceBase*, base::DataSourceBase*>& alreadyCloned ) const {
83  return new DataSourceTime();
84  }
85 
86  };
87 }}
DataSource is a base class representing a generic way to read data of type T.
Definition: DataSource.hpp:94
os::TimeService::Seconds value() const
Return the result of the last evaluate() function.
The TimeService is used for system-wide time keeping and conversions.
Definition: TimeService.hpp:35
long long ticks
The type for the systems clock tick.
Definition: TimeService.hpp:66
A internal::DataSource which returns the time elapsed since the last reset in Seconds.
Seconds secondsSince(ticks relativeTime) const
Get Seconds passed since a certain moment.
#define RTT_SCRIPTING_API
DataSourceTime * clone() const
Return a shallow clone of this DataSource.
DataSourceTime * copy(std::map< const base::DataSourceBase *, base::DataSourceBase * > &alreadyCloned) const
Create a deep copy of this internal::DataSource, unless it is already cloned.
double Seconds
The type used to store SI unit time keeping.
Definition: TimeService.hpp:41
void reset()
Reset the data to initial values.
Contains TaskContext, Activity, OperationCaller, Operation, Property, InputPort, OutputPort, Attribute.
Definition: Activity.cpp:52
os::TimeService::Seconds const & rvalue() const
Get a const reference to the value of this DataSource.
ticks getTicks() const
Get current tick of the System clock.