scoped-connection.cpp
Go to the documentation of this file.
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2018 Regents of the University of California.
4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
6  *
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
9  * Foundation, either version 3 of the License, or (at your option) any later version.
10  *
11  * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
12  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
13  * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
14  *
15  * You should have received copies of the GNU General Public License and GNU Lesser
16  * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
17  * <http://www.gnu.org/licenses/>.
18  *
19  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
20  */
21 
23 
24 namespace ndn {
25 namespace util {
26 namespace signal {
27 
29  : m_connection(std::move(connection))
30 {
31 }
32 
35 {
36  if (m_connection != connection) {
37  disconnect();
38  m_connection = std::move(connection);
39  }
40  return *this;
41 }
42 
44 {
45  disconnect();
46 }
47 
48 void
50 {
51  m_connection.disconnect();
52 }
53 
54 bool
56 {
57  return m_connection.isConnected();
58 }
59 
60 void
62 {
63  m_connection = {};
64 }
65 
66 } // namespace signal
67 } // namespace util
68 } // namespace ndn
Represents a connection to a signal.
Definition: connection.hpp:37
bool isConnected() const noexcept
Check if connected to the signal.
Definition: connection.hpp:54
void disconnect()
Disconnects from the signal.
Definition: connection.cpp:36
Disconnects a Connection automatically upon destruction.
ScopedConnection & operator=(const ScopedConnection &)=delete
bool isConnected() const noexcept
Check if the connection is connected to the signal.
constexpr ScopedConnection() noexcept=default
void disconnect()
Manually disconnect the connection.
~ScopedConnection()
Destructor, automatically disconnects the connection.
void release() noexcept
Release the connection so that it won't be disconnected when this ScopedConnection is destructed.
Definition: data.cpp:25