Trait slabmalloc::Allocator

pub unsafe trait Allocator<'a> {
    fn allocate(
        &mut self,
        layout: Layout
    ) -> Result<NonNull<u8>, AllocationError>;
    fn deallocate(
        &mut self,
        ptr: NonNull<u8>,
        layout: Layout
    ) -> Result<(), AllocationError>;
    unsafe fn refill_large(
        &mut self,
        layout: Layout,
        new_page: &'a mut LargeObjectPage<'a>
    ) -> Result<(), AllocationError>;
    unsafe fn refill(
        &mut self,
        layout: Layout,
        new_page: &'a mut ObjectPage<'a>
    ) -> Result<(), AllocationError>;
}

Allocator trait to be implemented by users of slabmalloc to provide memory to slabmalloc.

Safety

Needs to adhere to safety requirements of a rust allocator (see GlobalAlloc et. al.).

Required Methods

fn allocate(&mut self, layout: Layout) -> Result<NonNull<u8>, AllocationError>

fn deallocate(
    &mut self,
    ptr: NonNull<u8>,
    layout: Layout
) -> Result<(), AllocationError>

unsafe fn refill_large(
    &mut self,
    layout: Layout,
    new_page: &'a mut LargeObjectPage<'a>
) -> Result<(), AllocationError>

Refill the allocator with a LargeObjectPage.

Safety

TBD (this API needs to change anyways, likely new page should be a raw pointer)

unsafe fn refill(
    &mut self,
    layout: Layout,
    new_page: &'a mut ObjectPage<'a>
) -> Result<(), AllocationError>

Refill the allocator with a ObjectPage.

Safety

TBD (this API needs to change anyways, likely new page should be a raw pointer)

Implementors

impl<'a> Allocator<'a> for ZoneAllocator<'a>