Struct AllocError 

#[non_exhaustive]
pub struct AllocError { /* private fields */ }

Available on crate feature full only.

The error returned when an allocation was unsuccessful.

This will include a payload about the reason for failure.

Examples

use kernel_api::allocator::highmem;

if let Err(e) = highmem().allocate_one() {
    info!("memory allocation failed: {e}");
}

Implementations

impl AllocError

pub const fn pmm() -> Self

Constructs an AllocError caused by an error in physical memory allocation.

Examples

use kernel_api::allocator::AllocError;

let error = AllocError::pmm();

pub const fn vmm() -> Self

Constructs an AllocError caused by an error in virtual memory allocation.

Examples

use kernel_api::allocator::AllocError;

let error = AllocError::vmm();

pub const fn heap() -> Self

Constructs an AllocError caused by an error in heap allocation.

Examples

use kernel_api::allocator::AllocError;

let error = AllocError::heap();

Trait Implementations

impl Clone for AllocError

fn clone(&self) -> AllocError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AllocError

impl Debug for AllocError

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

Formats the value using the given formatter.

impl Default for AllocError

fn default() -> AllocError

Returns the “default value” for a type.

impl Display for AllocError

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

Formats the value using the given formatter.

impl Eq for AllocError

impl Error for AllocError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<AllocError> for MapPageError

fn from(_value: AllocError) -> Self

Converts to this type from the input type.

impl From<AllocError> for Error

fn from(_: AllocError) -> Self

Converts to this type from the input type.

impl From<Error> for AllocError

fn from(value: Error) -> Self

Converts to this type from the input type.

impl PartialEq for AllocError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AllocError