Struct MappedBufferGuard 

pub struct MappedBufferGuard<M: RawMutex + 'static, U: ?Sized> { /* private fields */ }

Like BufferGuard, but derefs to a borrowed U (often a slice or inner field).

Dropping this guard marks the same pool index free as the original BufferGuard.

Implementations

impl<M: RawMutex + 'static, U: ?Sized> MappedBufferGuard<M, U>

pub fn map<V: ?Sized>( orig: Self, fun: impl FnOnce(&mut U) -> &mut V, ) -> MappedBufferGuard<M, V>

Chains BufferGuard::map: re-borrows &mut U into &mut V without releasing the pool slot until the final mapped guard is dropped.

Same as BufferGuard::map: orig: Self instead of self, so call MappedBufferGuard::map(guard, f) and keep guard.map(...) available for U::map via Deref / DerefMut.

Trait Implementations

impl<M: RawMutex + 'static, U: ?Sized> Deref for MappedBufferGuard<M, U>

type Target = U

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<M: RawMutex + 'static, U: ?Sized> DerefMut for MappedBufferGuard<M, U>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<M: RawMutex + 'static, U: ?Sized> Drop for MappedBufferGuard<M, U>

fn drop(&mut self)

Executes the destructor for this type.