Struct LockedFrameAllocator 

pub struct LockedFrameAllocator<const ORDER: usize = 33>(/* private fields */);

A locked version of FrameAllocator

Usage

Create a locked frame allocator and add frames to it:

use buddy_system_allocator::*;
// Notice that the max order is `ORDER - 1`.
let mut frame = LockedFrameAllocator::<33>::new();
assert!(frame.lock().alloc(1).is_none());

frame.lock().add_frame(0, 3);
let num = frame.lock().alloc(1);
assert_eq!(num, Some(2));
let num = frame.lock().alloc(2);
assert_eq!(num, Some(0));

Implementations

impl<const ORDER: usize> LockedFrameAllocator<ORDER>

pub const fn new() -> Self

Creates an empty heap

Trait Implementations

impl<const ORDER: usize> Default for LockedFrameAllocator<ORDER>

fn default() -> LockedFrameAllocator<ORDER>

Returns the “default value” for a type.

impl<const ORDER: usize> Deref for LockedFrameAllocator<ORDER>

Available on crate feature use_spin only.

type Target = Mutex<FrameAllocator<ORDER>>

The resulting type after dereferencing.

fn deref(&self) -> &Mutex<FrameAllocator<ORDER>>

Dereferences the value.