Enum r3_core::kernel::ActivateTaskError

#[repr(i8)]
pub enum ActivateTaskError {
    NoAccess,
    BadContext,
    QueueOverflow,
}

Error type for Task::activate.

See ResultCode for all result codes and generic descriptions.

Variants

NoAccess

Invalid object access.

BadContext

CPU Lock is active.

QueueOverflow

The task is already active (not in the Dormant state).

This error code originates from E_QOVR defined in the μITRON 4.0 specification. In this specification, the act_tsk (activate task) system service works by enqueueing an activation request. E_QOVR is used to report a condition in which an enqueue count limit has been reached. Our kernel doesn’t support enqueueing activation request (at the moment), so any attempts to activate an already-active task will fail.

Trait Implementations

impl Clone for ActivateTaskError

fn clone(&self) -> ActivateTaskError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ActivateTaskError

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

Formats the value using the given formatter.

impl From<ActivateTaskError> for ResultCode

fn from(x: ActivateTaskError) -> Self

Converts to this type from the input type.

impl Hash for ActivateTaskError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ActivateTaskError

fn cmp(&self, other: &ActivateTaskError) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<ActivateTaskError> for ActivateTaskError

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<ActivateTaskError> for ActivateTaskError

fn partial_cmp(&self, other: &ActivateTaskError) -> 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 ActivateTaskError

impl Eq for ActivateTaskError

impl StructuralEq for ActivateTaskError

impl StructuralPartialEq for ActivateTaskError