Struct presser::RawAllocation

pub struct RawAllocation {
    pub base_ptr: NonNull<u8>,
    pub size: usize,
}

Represents a contiguous piece of a single allocation with some layout. May be wholly or partially uninitialized.

This exists as a convenient way to get access to a type implementing Slab when dealing with your own raw allocations/buffers if you don’t want to or cannot implement Slab for another native type.

Fields

base_ptr: NonNull<u8>

A pointer to the base address of the allocation

size: usize

The size of the allocation in bytes

Implementations

impl RawAllocation

pub fn from_raw_parts(base_ptr: NonNull<u8>, size: usize) -> Self

Create a new RawAllocation from a pointer and size.

Safety

This function is safe in and of itself, as nothing will be done with the pointer and size upon creation.

pub unsafe fn borrow_as_slab<'a>(&'a mut self) -> BorrowedRawAllocation<'a>

Asserts that we are uniquely borrowing the memory range represented by self for the duration of the borrow, giving us a BorrowedRawAllocation which implements Slab.

Safety

Using this method makes some strong guarantees about the contained base_ptr and size for the duration of the borrow. See the safety documentation for the Slab trait for a list of the guarantees you must make to use this method.

Also see the top-level safety documentation