Enum avr_oxide::hal::generic::callback::IsrCallback

pub enum IsrCallback<F, R> {
    Nop(R),
    Function(F),
    WithData(F, *const dyn Any),
}

Represents a callback function from an interrupt service routine.

Variants

Nop(R)

No Operation - dummy callback that evaluates to a fixed constant return value.

Function(F)

A function/closure callback. This will be called when the interrupt service routine needs it; the function signature is context dependent, however the last parameter will always be an Option<&'static dyn Any> user-data field, which will be given a None value. The first parameter must be an isolation token (avr_oxide::concurrency::Isolated)

WithData(F, *const dyn Any)

A function/closure callback. This will be called when the interrupt service routine needs it; the function signature is context dependent, however the last parameter will always be an Option<&'static dyn Any> user-data field, into which the given data will be passed as Some() value. The first parameter must be an isolation token (avr_oxide::concurrency::Isolated)

Implementations

impl<F, R> IsrCallback<F, R>

pub fn is_nop(&self) -> bool

Return true iff this callback is a no-op function. We can use this to drive optimisations like disabling the interrupt routine entirely.

Trait Implementations

impl<F: Clone, R: Clone> Clone for IsrCallback<F, R>

fn clone(&self) -> IsrCallback<F, R>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<F: Debug, R: Debug> Debug for IsrCallback<F, R>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F: Copy, R: Copy> Copy for IsrCallback<F, R>