Struct BuddyBitmap 

pub struct BuddyBitmap {
    pub data: *mut u8,
    pub num_bits: usize,
}

Bitmap used by buddy coalescing logic.

The storage is provided externally (stolen from early boot free pages) and addressed through HHDM.

Fields

data: *mut u8

num_bits: usize

Implementations

impl BuddyBitmap

pub const fn empty() -> Self

Empty bitmap for const initialization.

pub fn is_empty(&self) -> bool

Returns whether empty.

pub fn toggle(&self, idx: usize) -> bool

Toggle a bit and return its new value.

pub fn test(&self, idx: usize) -> bool

Performs the test operation.

pub fn set(&self, idx: usize)

Performs the set operation.

pub fn clear(&self, idx: usize)

Performs the clear operation.

Trait Implementations

impl Clone for BuddyBitmap

fn clone(&self) -> BuddyBitmap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuddyBitmap

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

Formats the value using the given formatter.

impl Copy for BuddyBitmap

impl Send for BuddyBitmap