Struct HostBacking 

pub struct HostBacking;

The process’s own address space.

The default backing. Uses placeholder reservations on Windows and mmap on unix, both of which let a block be committed into part of a larger reservation and taken back out without disturbing its neighbours.

Trait Implementations

impl Clone for HostBacking

fn clone(&self) -> HostBacking

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HostBacking

impl Debug for HostBacking

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for HostBacking

fn default() -> HostBacking

Returns the “default value” for a type.

impl VirtualBacking for HostBacking

type Reservation = VirtualRange

One reserved address range, and whatever the platform needs to remember about what is committed in it.

fn granularity(&self) -> usize

Allocation granularity: every offset and length is a multiple of this.

fn reserve(&self, len: usize) -> Result<Self::Reservation, VirtualMemoryError>

Reserve len bytes of address space, committing nothing.

fn base(reservation: &Self::Reservation) -> usize

The address the reservation starts at.

fn commit( &self, reservation: &mut Self::Reservation, offset: usize, len: usize, ) -> Result<(), VirtualMemoryError>

Back offset..offset + len of reservation with fresh memory.

fn release( &self, reservation: &mut Self::Reservation, offset: usize, _len: usize, ) -> Result<(), VirtualMemoryError>

Give back the block committed at offset, leaving the address space reserved so it can be committed again later.

fn physical_memory_accounting(&self) -> PhysicalMemoryAccounting

Who owns accounting for committed physical memory.