Struct bern_kernel::exec::runnable::Priority

pub struct Priority(_);

Issue with closures and static tasks

Every closure has its own anonymous type. A closure can only be stored in a generic struct. The task object stored in the task “list” (array) must all have the same size -> not generic. Thus, the closure can only be referenced as trait object. But need to force the closure to be static, so our reference can be as well. A static closure is not possible, as every static needs a specified type. To overcome the issue of storing a closure into a static task we need to copy it into a static stack. Access to the closure is provided via a closure trait object, which now references a static object which cannot go out of scope. Task priority.

0 is the highest priority.

Implementations

impl Priority

pub const fn new(prio: u8) -> Self

pub fn is_idle(&self) -> bool

pub const fn idle() -> Self

pub fn is_interrupt_handler(self) -> bool

pub fn raw(&self) -> u8

Trait Implementations

impl Clone for Priority

fn clone(&self) -> Priority

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Priority

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

Formats the value using the given formatter.

impl Default for Priority

fn default() -> Self

Returns the “default value” for a type.

impl From<Priority> for u8

fn from(p: Priority) -> Self

Converts to this type from the input type.

impl From<Priority> for usize

fn from(p: Priority) -> Self

Converts to this type from the input type.

impl PartialEq<Priority> for Priority

fn eq(&self, other: &Priority) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Priority) -> bool

This method tests for !=.

impl PartialOrd<Priority> for Priority

fn partial_cmp(&self, other: &Priority) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Priority

impl StructuralPartialEq for Priority