aria::Subscription Class Reference

RAII handle to a single subscription. More...

#include <subscription.hpp>

Public Member Functions
	Subscription () noexcept=default
template<class T>
	Subscription (std::shared_ptr< T > owner) noexcept
	Construct from any shared pointer.
template<class Fn> requires std::invocable<std::decay_t<Fn>&>
	Subscription (Fn &&on_disconnect)
	Invoke a disconnect callback exactly once when this handle is released.
	Subscription (std::function< void()> on_disconnect)
	Subscription (const Subscription &)=delete
Subscription &	operator= (const Subscription &)=delete
	Subscription (Subscription &&) noexcept=default
Subscription &	operator= (Subscription &&) noexcept=default
	~Subscription () noexcept=default
void	release () noexcept
	Explicitly disconnect now (instead of at destruction).
bool	active () const noexcept
	operator bool () const noexcept

Detailed Description

RAII handle to a single subscription.

Dropping it (or calling release()) severs the underlying connection. Move-only.

Constructor & Destructor Documentation

Subscription() [1/6]

aria::Subscription::Subscription ( )

defaultnoexcept

Subscription() [2/6]

template<class T>

aria::Subscription::Subscription ( std::shared_ptr< T > owner )

inlineexplicitnoexcept

Construct from any shared pointer.

The common case: pass a std::shared_ptr<ReactionNode> returned from the reactive layer; its destructor detaches from the graph.

Subscription() [3/6]

template<class Fn>
requires std::invocable<std::decay_t<Fn>&>

aria::Subscription::Subscription ( Fn && on_disconnect )

inlineexplicit

Invoke a disconnect callback exactly once when this handle is released.

Captures are stored directly in the shared allocation, including move-only captures; there is no intermediate std::function allocation.

Subscription() [4/6]

aria::Subscription::Subscription ( std::function< void()> on_disconnect )

inlineexplicit

Subscription() [5/6]

aria::Subscription::Subscription ( const Subscription & )

delete

Subscription() [6/6]

aria::Subscription::Subscription ( Subscription && )

defaultnoexcept

~Subscription()

aria::Subscription::~Subscription ( )

defaultnoexcept

Member Function Documentation

operator=() [1/2]

Subscription & aria::Subscription::operator= ( const Subscription & )

delete

operator=() [2/2]

Subscription & aria::Subscription::operator= ( Subscription && )

defaultnoexcept

release()

void aria::Subscription::release ( )

inlinenoexcept

Explicitly disconnect now (instead of at destruction).

active()

bool aria::Subscription::active ( ) const

inlinenodiscardnoexcept

operator bool()

aria::Subscription::operator bool ( ) const

inlineexplicitnoexcept

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The documentation for this class was generated from the following file:

• modules/core/include/aria/subscription.hpp