Struct kernel::comms::kchannel::ErasedKProducer

pub(crate) struct ErasedKProducer {
    erased_q: NonNull<MpScQueue<(), SpiteData<()>>>,
    dropper: unsafe fn(_: NonNull<MpScQueue<(), SpiteData<()>>>),
    cloner: unsafe fn(_: &Self) -> Self,
}

A type-erased KProducer. This is currently used only for implementing the type-erased driver service registry.

It contains a VTable of functions necessary for operations while type-erased, namely cloning and dropping.

Fields

erased_q: NonNull<MpScQueue<(), SpiteData<()>>>

dropper: unsafe fn(_: NonNull<MpScQueue<(), SpiteData<()>>>)

cloner: unsafe fn(_: &Self) -> Self

Implementations

impl ErasedKProducer

pub(crate) fn clone_erased<T>(&self) -> Self

Clone the ErasedKProducer. The resulting ErasedKProducer will be for the same underlying KChannel and type.

pub(crate) unsafe fn clone_typed<T>(&self) -> KProducer<T>

Clone the ErasedKProducer, while also re-typing to the unleaked KProducer type.

SAFETY:

The type T MUST be the same T that was used to create this ErasedKProducer, otherwise undefined behavior will occur.

pub(crate) unsafe fn drop_erased<T>(ptr: NonNull<MpScQueue<(), SpiteData<()>>>)

Drop the ErasedKProducer, while also re-typing the leaked KProducer type.

SAFETY:

The type T MUST be the same T that was used to create this ErasedKProducer, otherwise undefined behavior will occur.

Trait Implementations

impl Clone for ErasedKProducer

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Drop for ErasedKProducer

fn drop(&mut self)

Executes the destructor for this type.