ndn::util::signal::Connection Class Reference

represents a connection to a signal More...

#include <ndn-cxx/util/signal/connection.hpp>

Public Member Functions

constexpr Connection () noexcept=default
 
void disconnect ()
 disconnects from the signal More...
 
bool isConnected () const noexcept
 check if connected to the signal More...
 

Friends

bool operator!= (const Connection &lhs, const Connection &rhs) noexcept
 
bool operator== (const Connection &lhs, const Connection &rhs) noexcept
 compare for equality More...
 
template<typename Owner , typename ... TArgs>
class Signal
 

Detailed Description

represents a connection to a signal

Note
This type is copyable. Any copy can be used to disconnect.

Definition at line 36 of file connection.hpp.

Constructor & Destructor Documentation

◆ Connection()

constexpr ndn::util::signal::Connection::Connection ( )
defaultnoexcept

Member Function Documentation

◆ disconnect()

void ndn::util::signal::Connection::disconnect ( )

disconnects from the signal

Note
If the connection is already disconnected, or if the Signal has been destructed, this operation has no effect.
Warning
During signal emission, attempting to disconnect a connection other than the executing handler's own connection results in undefined behavior.

Definition at line 36 of file connection.cpp.

◆ isConnected()

bool ndn::util::signal::Connection::isConnected ( ) const
inlinenoexcept

check if connected to the signal

Definition at line 54 of file connection.hpp.

Friends And Related Function Documentation

◆ operator!=

bool operator!= ( const Connection lhs,
const Connection rhs 
)
friend

Definition at line 86 of file connection.hpp.

◆ operator==

bool operator== ( const Connection lhs,
const Connection rhs 
)
friend

compare for equality

Two connections are equal if they both refer to the same connection that isn't disconnected, or they are both disconnected.

Definition at line 78 of file connection.hpp.

◆ Signal

template<typename Owner , typename ... TArgs>
friend class Signal
friend

Definition at line 66 of file connection.hpp.