Trait Allocator

pub trait Allocator {
    // Required methods
    unsafe fn allocate(
        &mut self,
        layout: Layout,
    ) -> Result<NonNull<[u8]>, AllocError>;
    unsafe fn deallocate(&mut self, ptr: NonNull<u8>, layout: Layout);
    unsafe fn grow(
        &mut self,
        ptr: NonNull<u8>,
        old_layout: Layout,
        new_layout: Layout,
    ) -> Result<NonNull<[u8]>, AllocError>;
    unsafe fn shrink(
        &mut self,
        ptr: NonNull<u8>,
        old_layout: Layout,
        new_layout: Layout,
    ) -> Result<NonNull<[u8]>, AllocError>;

    // Provided methods
    unsafe fn allocate_zeroed(
        &mut self,
        layout: Layout,
    ) -> Result<NonNull<[u8]>, AllocError> { ... }
    unsafe fn grow_zeroed(
        &mut self,
        ptr: NonNull<u8>,
        old_layout: Layout,
        new_layout: Layout,
    ) -> Result<NonNull<[u8]>, AllocError> { ... }
    fn by_ref(&self) -> &Self
       where Self: Sized { ... }
}

Required Methods

unsafe fn allocate( &mut self, layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

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

unsafe fn grow( &mut self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

unsafe fn shrink( &mut self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

Provided Methods

unsafe fn allocate_zeroed( &mut self, layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

unsafe fn grow_zeroed( &mut self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>

fn by_ref(&self) -> &Self

where Self: Sized,

Implementors

impl Allocator for SimpleObstack

impl Allocator for StackArena