Orocos Real-Time Toolkit  2.8.3
BufferInterface.hpp
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1 /***************************************************************************
2  tag: Peter Soetens Thu Oct 10 16:16:57 CEST 2002 BufferInterface.hpp
3 
4  BufferInterface.hpp - description
5  -------------------
6  begin : Thu October 10 2002
7  copyright : (C) 2002 Peter Soetens
8  email : peter.soetens@mech.kuleuven.ac.be
9 
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37 
38 #ifndef ORO_CORELIB_BUFFERINTERFACE_HPP
39 #define ORO_CORELIB_BUFFERINTERFACE_HPP
40 
41 #include "BufferBase.hpp"
42 #include <boost/shared_ptr.hpp>
43 #include <boost/call_traits.hpp>
44 #include <vector>
45 
46 namespace RTT
47 { namespace base {
48 
54  template<class T>
56  public BufferBase
57  {
58  public:
59  typedef T value_t;
61 
62  typedef boost::shared_ptr< BufferInterface<T> > shared_ptr;
63  typedef typename boost::call_traits<T>::param_type param_t;
64  typedef typename boost::call_traits<T>::reference reference_t;
65 
66  virtual ~BufferInterface()
67  {}
68 
76  virtual bool Pop( reference_t item) = 0;
77 
86  virtual size_type Pop( std::vector<value_t>& items ) = 0;
87 
98  virtual value_t* PopWithoutRelease() = 0;
99 
104  virtual void Release(value_t *item) = 0;
105 
113  virtual bool Push( param_t item) = 0;
114 
122  virtual size_type Push( const std::vector<value_t>& items ) = 0;
123 
133  virtual void data_sample( const T& sample ) = 0;
134 
138  virtual T data_sample() const = 0;
139  };
140 }}
141 
142 #endif
boost::call_traits< T >::reference reference_t
A Buffer is an object which is used to store (Push) and retrieve (Pop) values from.
virtual bool Push(param_t item)=0
Write a single value to the buffer.
boost::call_traits< T >::param_type param_t
virtual void Release(value_t *item)=0
Releases the pointer.
virtual value_t * PopWithoutRelease()=0
Returns a pointer to the first element in the buffer.
BufferBase::size_type size_type
virtual bool Pop(reference_t item)=0
Read the oldest value from the buffer.
virtual T data_sample() const =0
Reads back a data sample.
Contains TaskContext, Activity, OperationCaller, Operation, Property, InputPort, OutputPort, Attribute.
Definition: Activity.cpp:51
Any Buffer has a capacity, size and can be empty or full.
Definition: BufferBase.hpp:52
boost::shared_ptr< BufferInterface< T > > shared_ptr