Struct slabmalloc::SlabAllocator

pub struct SlabAllocator<'a> {
    // some fields omitted
}

A slab allocator allocates elements of a fixed size.

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

Methods

impl<'a> SlabAllocator<'a>

fn new(size: usize, pager: Option<&'a mut SlabPageProvider<'a>>) -> SlabAllocator<'a>

Create a new SlabAllocator.

fn size(&self) -> usize

Return object size of this allocator.

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

Add a new SlabPage.

fn allocate<'b>(&'b mut self, alignment: usize) -> Option<*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.

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

Deallocates a previously allocated block.

Bug

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