scoped-connection.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2017 Regents of the University of California.
4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
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7  * ndn-cxx library is free software: you can redistribute it and/or modify it under the
8  * terms of the GNU Lesser General Public License as published by the Free Software
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13  * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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15  * You should have received copies of the GNU General Public License and GNU Lesser
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17  * <http://www.gnu.org/licenses/>.
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19  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
20  */
21 
22 #include "scoped-connection.hpp"
23 
24 namespace ndn {
25 namespace util {
26 namespace signal {
27 
28 #if NDN_CXX_HAVE_IS_NOTHROW_MOVE_CONSTRUCTIBLE
29 static_assert(std::is_nothrow_move_constructible<ScopedConnection>::value,
30  "ScopedConnection must be MoveConstructible with noexcept");
31 #endif // NDN_CXX_HAVE_IS_NOTHROW_MOVE_CONSTRUCTIBLE
32 
34 {
35 }
36 
38  : m_connection(connection)
39 {
40 }
41 
43  : m_connection(other.m_connection)
44 {
45  other.release();
46 }
47 
50 {
51  if (m_connection != connection) {
52  m_connection.disconnect();
53  m_connection = connection;
54  }
55  return *this;
56 }
57 
59 {
60  m_connection.disconnect();
61 }
62 
63 void
65 {
66  m_connection.disconnect();
67 }
68 
69 bool
71 {
72  return m_connection.isConnected();
73 }
74 
75 void
77 {
78  m_connection = {};
79 }
80 
81 } // namespace signal
82 } // namespace util
83 } // namespace ndn
Copyright (c) 2013-2017 Regents of the University of California.
Definition: common.hpp:66
~ScopedConnection() noexcept
disconnects the connection
bool isConnected() const
check if the connection is connected to the signal
represents a connection to a signal
Definition: connection.hpp:34
ScopedConnection & operator=(const Connection &connection)
assigns a connection
void disconnect()
disconnects from the signal
Definition: connection.cpp:40
void release()
releases the connection so that it won&#39;t be disconnected when this ScopedConnection is destructed ...
bool isConnected() const
check if connected to the signal
Definition: connection.cpp:49
disconnects a Connection automatically upon destruction
void disconnect()
disconnects the connection manually