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
9  * Foundation, either version 3 of the License, or (at your option) any later version.
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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 "connection.hpp"
23 
24 namespace ndn {
25 namespace util {
26 namespace signal {
27 
28 BOOST_CONCEPT_ASSERT((boost::EqualityComparable<Connection>));
29 
31 {
32 }
33 
34 Connection::Connection(weak_ptr<function<void()>> disconnect)
35  : m_disconnect(disconnect)
36 {
37 }
38 
39 void
41 {
42  shared_ptr<function<void()>> f = m_disconnect.lock();
43  if (f != nullptr) {
44  (*f)();
45  }
46 }
47 
48 bool
50 {
51  return !m_disconnect.expired();
52 }
53 
54 bool
56 {
57  shared_ptr<function<void()>> f1 = m_disconnect.lock();
58  shared_ptr<function<void()>> f2 = other.m_disconnect.lock();
59  return f1 == f2;
60 }
61 
62 bool
64 {
65  return !(this->operator==(other));
66 }
67 
68 } // namespace signal
69 } // namespace util
70 } // namespace ndn
bool operator!=(const Connection &other) const
Definition: connection.cpp:63
Copyright (c) 2013-2017 Regents of the University of California.
Definition: common.hpp:66
represents a connection to a signal
Definition: connection.hpp:34
void disconnect()
disconnects from the signal
Definition: connection.cpp:40
bool isConnected() const
check if connected to the signal
Definition: connection.cpp:49
bool operator==(const Connection &other) const
compare for equality
Definition: connection.cpp:55