Trait rkyv::ser::ScratchSpace

pub trait ScratchSpace: Fallible {
    unsafe fn push_scratch(
        &mut self, 
        layout: Layout
    ) -> Result<NonNull<[u8]>, Self::Error>;
    unsafe fn pop_scratch(
        &mut self, 
        ptr: NonNull<u8>, 
        layout: Layout
    ) -> Result<(), Self::Error>;
}

A serializer that can allocate scratch space.

Required Methods

unsafe fn push_scratch(
    &mut self,
    layout: Layout
) -> Result<NonNull<[u8]>, Self::Error>

Allocates scratch space of the requested size.

Safety

layout must have non-zero size.

unsafe fn pop_scratch(
    &mut self,
    ptr: NonNull<u8>,
    layout: Layout
) -> Result<(), Self::Error>

Deallocates previously allocated scratch space.

Safety

• ptr must be the scratch memory last allocated with push_scratch.
• layout must be the same layout that was used to allocate that block of memory.

Implementors

impl ScratchSpace for AllocScratch

impl<M: ScratchSpace, F: ScratchSpace> ScratchSpace for FallbackScratch<M, F>

impl<S: Fallible, C: ScratchSpace, H: Fallible> ScratchSpace for CompositeSerializer<S, C, H>

impl<T: DerefMut<Target = U>, U: AsMut<[u8]>> ScratchSpace for BufferScratch<T>

impl<T: ScratchSpace> ScratchSpace for ScratchTracker<T>

impl<const N: usize> ScratchSpace for HeapScratch<N>