Orocos Real-Time Toolkit  2.8.3
Handle.cpp
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1 /***************************************************************************
2  tag: Peter Soetens Wed Jan 18 14:11:39 CET 2006 Handle.cxx
3 
4  Handle.cxx - description
5  -------------------
6  begin : Wed January 18 2006
7  copyright : (C) 2006 Peter Soetens
8  email : peter.soetens@mech.kuleuven.be
9 
10  ***************************************************************************
11  * This library is free software; you can redistribute it and/or *
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37 
38 
39 #include "Handle.hpp"
40 #include "rtt-fwd.hpp"
41 
42 
43 namespace RTT {
44  using namespace detail;
45 
47  : m_conn(0)
48  {
49  }
50 
51  Handle::Handle(connection_t conn)
52  : m_conn(conn)
53  {
54  }
55 
57  : m_conn( hs.m_conn )
58  {
59  }
60 
62  {
63  }
64 
66  {
67  if ( connected() )
68  return true;
69  return m_conn && m_conn->connect();
70  }
71 
73  {
74  if ( !connected() )
75  return true;
76  return m_conn->disconnect();
77  }
78 
79  bool Handle::connected() const {
80  return m_conn && m_conn->connected();
81  }
82 
83  Handle::operator bool() const {
84  return m_conn != 0;
85  }
86 
87  bool Handle::ready() const {
88  return m_conn != 0;
89  }
90 
91 
92  ScopedHandle::ScopedHandle(const Handle& hs)
93  : Handle( hs )
94  {
95  }
96 
97 
99  {
100  this->disconnect();
101  }
102  CleanupHandle::CleanupHandle(const Handle& hs)
103  : Handle( hs )
104  {
105  }
106 
108  {
109  if (m_conn)
110  m_conn->destroy();
111  }
112 }
~Handle()
No-op destructor, does not change signal/slot state.
Definition: Handle.cpp:61
~ScopedHandle()
If connected, disconnect the slot from the signal.
Definition: Handle.cpp:98
bool connected() const
Inspect if this Handle represents a connected signal and slot.
Definition: Handle.cpp:79
~CleanupHandle()
Cleanup all signal and slot connection resources.
Definition: Handle.cpp:107
bool disconnect()
Disconnect the slot from the signal.
Definition: Handle.cpp:72
bool ready() const
Inspect if this handle is pointing to valid (existing) connection(s).
Definition: Handle.cpp:87
bool connect()
(Re-)Connect the slot with the signal.
Definition: Handle.cpp:65
connection_t m_conn
This is actually a smart pointer which always points to an existing connection object.
Definition: Handle.hpp:126
Contains TaskContext, Activity, OperationCaller, Operation, Property, InputPort, OutputPort, Attribute.
Definition: Activity.cpp:51
The Handle holds the information, and allows manipulation, of a connection between a internal::Signal...
Definition: Handle.hpp:66
Handle()
the connection type for the slot of this Handle
Definition: Handle.cpp:46