Struct Chunk

pub struct Chunk {
    previous: Option<NonNull<Chunk>>,
    cursor: *mut u8,
    chunk_end: *mut u8,
    size: usize,
}

A Contiguous buffer of memory holding multiple sub-allocaions.

Fields

previous: Option<NonNull<Chunk>>

cursor: *mut u8

Offset of the next allocation

chunk_end: *mut u8

Points to the first byte after the chunk’s buffer.

size: usize

Size of the chunk

Implementations

impl Chunk

pub fn allocate_item( this: NonNull<Chunk>, layout: Layout, ) -> Result<NonNull<[u8]>, ()>

pub unsafe fn deallocate_item( this: NonNull<Chunk>, item: NonNull<u8>, layout: Layout, )

pub unsafe fn grow_item( this: NonNull<Chunk>, item: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, ()>

pub unsafe fn shrink_item( this: NonNull<Chunk>, item: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> NonNull<[u8]>

pub fn contains_item(this: NonNull<Chunk>, item: NonNull<u8>) -> bool

fn available_size(this: NonNull<Chunk>) -> usize

fn utilization(this: NonNull<Chunk>) -> f32