Struct slabmalloc::SCAllocator

pub struct SCAllocator<'a> { /* fields omitted */ }

A slab allocator allocates elements of a fixed size.

It has a list of ObjectPage stored inside slabs from which it allocates memory.

Methods

impl<'a> SCAllocator<'a>

pub const fn new(
    size: usize,
    pager: &'a Mutex<dyn PageProvider<'a>>
) -> SCAllocator<'a>

Create a new SCAllocator.

pub fn size(&self) -> usize

Return object size of this allocator.

pub fn insert_slab<'b>(&'b mut self, new_head: &'a mut ObjectPage<'a>)

Add a new ObjectPage.

pub fn allocate<'b>(&'b mut self, layout: Layout) -> *mut u8

Allocates a block of memory with respect to alignment.

In case of failure will try to grow the slab allocator by requesting additional pages and re-try the allocation once more before we give up.

pub fn deallocate<'b>(&'b mut self, ptr: *mut u8, layout: Layout)

Deallocates a previously allocated block.

Bug

This never releases memory in case the ObjectPage are provided by the zone.