aria::abi::SignalErased Class Reference

Type-erased multi-cast signal. More...

#include <signal.hpp>

Public Member Functions
	SignalErased ()
	~SignalErased ()
	SignalErased (const SignalErased &)=delete
SignalErased &	operator= (const SignalErased &)=delete
	SignalErased (SignalErased &&) noexcept
SignalErased &	operator= (SignalErased &&) noexcept
SlotId	connect (SlotErased slot)
	Add a slot. Returns its id (used for disconnection).
void	disconnect (SlotId id) noexcept
	Disconnect by id.
void	emit (void *args) const
	Emit to all slots.
std::size_t	slot_count () const noexcept
	Number of currently connected slots.
void	clear () noexcept
	Drop all slots, releasing captures outside the signal lock.
std::weak_ptr< ControlBlock >	weak_handle () const noexcept

Static Public Member Functions
static void	disconnect_via_weak (const std::weak_ptr< ControlBlock > &weak, SlotId id) noexcept
	Disconnect a slot via a weak handle to the signal's control block — used by Subscription's RAII deleter so unsubscribing after the signal itself has been destroyed is a safe no-op.

Detailed Description

Type-erased multi-cast signal.

Thread-safe.

Stored as a control block reachable via shared_ptr — Subscriptions hold a weak_ptr to it, so unsubscribing after the signal is destroyed is a no-op rather than a crash.

Constructor & Destructor Documentation

SignalErased() [1/3]

aria::abi::SignalErased::SignalErased

(

)

~SignalErased()

aria::abi::SignalErased::~SignalErased

(

)

SignalErased() [2/3]

aria::abi::SignalErased::SignalErased ( const SignalErased & )

delete

SignalErased() [3/3]

aria::abi::SignalErased::SignalErased ( SignalErased && )

noexcept

Member Function Documentation

operator=() [1/2]

SignalErased & aria::abi::SignalErased::operator= ( const SignalErased & )

delete

operator=() [2/2]

SignalErased & aria::abi::SignalErased::operator= ( SignalErased && )

noexcept

connect()

SlotId aria::abi::SignalErased::connect

(

SlotErased

slot

)

Add a slot. Returns its id (used for disconnection).

disconnect()

void aria::abi::SignalErased::disconnect ( SlotId id )

noexcept

Disconnect by id.

Later callbacks in an active emission are skipped. A callback already executing on another thread may finish.

emit()

void aria::abi::SignalErased::emit

(

void *

args

)

const

Emit to all slots.

The args pointer is passed to each slot's invoker. Slots are snapshotted under lock; emission happens outside the lock.

slot_count()

std::size_t aria::abi::SignalErased::slot_count ( ) const

nodiscardnoexcept

Number of currently connected slots.

clear()

void aria::abi::SignalErased::clear ( )

noexcept

Drop all slots, releasing captures outside the signal lock.

weak_handle()

std::weak_ptr< ControlBlock > aria::abi::SignalErased::weak_handle ( ) const

nodiscardnoexcept

disconnect_via_weak()

void aria::abi::SignalErased::disconnect_via_weak ( const std::weak_ptr< ControlBlock > & weak, SlotId id )

staticnoexcept

Disconnect a slot via a weak handle to the signal's control block — used by Subscription's RAII deleter so unsubscribing after the signal itself has been destroyed is a safe no-op.

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

• modules/abi/include/aria/abi/signal.hpp