connection.hpp
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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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21 
22 #ifndef NDN_UTIL_SIGNAL_CONNECTION_HPP
23 #define NDN_UTIL_SIGNAL_CONNECTION_HPP
24 
25 #include "../../common.hpp"
26 
27 namespace ndn {
28 namespace util {
29 namespace signal {
30 
35 {
36 public:
37  Connection();
38 
45  void
46  disconnect();
47 
51  bool
52  isConnected() const;
53 
59  bool
60  operator==(const Connection& other) const;
61 
62  bool
63  operator!=(const Connection& other) const;
64 
65 private:
68  explicit
69  Connection(weak_ptr<function<void()>> disconnect);
70 
71  template<typename Owner, typename ...TArgs>
72  friend class Signal;
73 
74 private:
82  weak_ptr<function<void()>> m_disconnect;
83 };
84 
85 } // namespace signal
86 } // namespace util
87 } // namespace ndn
88 
89 #endif // NDN_UTIL_SIGNAL_CONNECTION_HPP
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
provides a lightweight signal / event system
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