Struct BuddyAllocator

pub struct BuddyAllocator<const CCOUNT: usize>(SyncImplRef<BuddyInner<CCOUNT>>);

The real allocator provided to the Rust. A wrapper.

Tuple Fields

0: SyncImplRef<BuddyInner<CCOUNT>>

Implementations

impl<const CCOUNT: usize> BuddyAllocator<CCOUNT>

pub const fn new() -> Self

Just build a inner struct.

pub fn init(&self, page_start: *mut PageNode, size: usize)

Just initialize the inner struct.

Trait Implementations

impl<const CCOUNT: usize> Default for BuddyAllocator<CCOUNT>

fn default() -> Self

Default constructions.

impl<const CCOUNT: usize> GlobalAlloc for BuddyAllocator<CCOUNT>

unsafe fn alloc(&self, layout: Layout) -> *mut u8

Do alloc.

unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Do dealloc.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize, ) -> *mut u8

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.