Struct storage_api::BorrowedStorage

pub struct BorrowedStorage<'a, DataStore> { /* private fields */ }

A single storage which stores memory in borrowed space.

The DataStore type parameter determines the layout of the inline storage. (It would be nice to use const LAYOUT: Layout instead, but the needed features are currently a little too incomplete to be usable here yet.)

Implementations

impl<'a, DataStore> BorrowedStorage<'a, DataStore>

pub fn new(store: &'a mut MaybeUninit<DataStore>) -> Self

pub fn fits(&self, needed_layout: Layout) -> bool

Trait Implementations

impl<DataStore> Storage for BorrowedStorage<'_, DataStore>

type Handle = ()

The handle which is used to access the stored memory.

fn allocate(&mut self, layout: Layout) -> Result<Self::Handle, AllocError>

Allocate memory handle in this storage.

unsafe fn deallocate(&mut self, _handle: Self::Handle, _layout: Layout)

Deallocate an object handle in this storage.

unsafe fn resolve(&self, _handle: Self::Handle, layout: Layout) -> &Memory

Resolve a memory handle in this storage to a reference.

unsafe fn resolve_mut(
    &mut self,
    _handle: Self::Handle,
    layout: Layout
) -> &mut Memory

Resolve a memory handle in this storage to a mutable reference.

unsafe fn grow(
    &mut self,
    handle: Self::Handle,
    _old_layout: Layout,
    new_layout: Layout
) -> Result<Self::Handle, AllocError>

Grow a memory handle to a larger size.

unsafe fn shrink(
    &mut self,
    handle: Self::Handle,
    _old_layout: Layout,
    new_layout: Layout
) -> Result<Self::Handle, AllocError>

Shrink a memory handle to a smaller size.