Struct BufferPoolAllocator

pub struct BufferPoolAllocator<P: BufferRetentionPolicy, const ALIGNMENT: usize, R, A: Allocator + Clone> { /* private fields */ }

Trait Implementations

impl<P: BufferRetentionPolicy, const ALIGNMENT: usize, R: WeakAlignedBufferPoolRef<P, ALIGNMENT, A>, A: Allocator + Clone> Allocator for BufferPoolAllocator<P, ALIGNMENT, R, A>

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

Attempts to allocate a block of memory.

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

Behaves like allocate, but also ensures that the returned memory is zero-initialized.

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

Deallocates the memory referenced by ptr.

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

Attempts to extend the memory block.

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

Behaves like grow, but also ensures that the new contents are set to zero before being returned.

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

Attempts to shrink the memory block.

fn by_ref(&self) -> &Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Allocator.

impl<P: BufferRetentionPolicy, const ALIGNMENT: usize, R: WeakAlignedBufferPoolRef<P, ALIGNMENT, A>, A: Allocator + Clone> BufferAllocator<ALIGNMENT> for BufferPoolAllocator<P, ALIGNMENT, R, A>

unsafe fn deallocate_buffer(&self, raw: RawBuffer<ALIGNMENT>)

Deallocates the buffer.

impl<P: BufferRetentionPolicy, const ALIGNMENT: usize, R: WeakAlignedBufferPoolRef<P, ALIGNMENT, A>, A: Allocator + Clone> Clone for BufferPoolAllocator<P, ALIGNMENT, R, A>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.