Struct presser::BorrowedRawAllocation

pub struct BorrowedRawAllocation<'a> { /* private fields */ }

Represents the unique borrow of a contiguous piece of a single allocation with some layout that is used as a data copying destination. May be wholly or partially uninitialized.

This type can only be obtained through the borrow_as_slab method on RawAllocation.

Trait Implementations

impl<'a> Slab for BorrowedRawAllocation<'a>

fn base_ptr(&self) -> *const u8

Get a pointer to the beginning of the allocation represented by self.

fn base_ptr_mut(&mut self) -> *mut u8

Get a pointer to the beginning of the allocation represented by self.

fn size(&self) -> usize

Get the size of the allocation represented by self.

fn as_maybe_uninit_bytes(&self) -> &[MaybeUninit<u8>]

Interpret a portion of self as a slice of MaybeUninit<u8>. This is likely not incredibly useful, you probably want to use Slab::as_maybe_uninit_bytes_mut

fn as_maybe_uninit_bytes_mut(&mut self) -> &mut [MaybeUninit<u8>]

Interpret a portion of self as a mutable slice of MaybeUninit<u8>.

unsafe fn assume_initialized_as_bytes(&self) -> &[u8]

Interpret self as a byte slice. This assumes that all bytes in self are initialized.

unsafe fn assume_initialized_as_bytes_mut(&mut self) -> &mut [u8]

Interpret self as a mutable byte slice. This assumes that all bytes in self are initialized.

unsafe fn assume_range_initialized_as_bytes<R>(&self, range: R) -> &[u8] where R: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]>,

Interpret a range of self as a byte slice. This assumes that all bytes within range are initialized.

unsafe fn assume_range_initialized_as_bytes_mut<R>( &mut self, range: R ) -> &mut [u8] where R: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]>,

Interpret a range of self as a mutable byte slice. This assumes that all bytes within range are initialized.

fn as_ffi_buffer<R>(&self, range: R) -> (*const c_void, usize)where R: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]>,

View a portion of self as a c_void pointer and size, appropriate for sending to an FFI function to have it read the contents of self. If you want the buffer to be filled with data from the other side of the ffi and then read it back, use as_ffi_readback_buffer instead.

fn as_ffi_readback_buffer<R>(&mut self, range: R) -> (*mut c_void, usize)where R: SliceIndex<[MaybeUninit<u8>], Output = [MaybeUninit<u8>]>,

View a portion of self as a c_void pointer and size, appropriate for sending to an FFI function to be filled and then read using one or more of the read_ helper functions.