Struct WireOptionalHandle

pub struct WireOptionalHandle { /* private fields */ }

An optional Zircon handle.

Implementations

impl WireOptionalHandle

pub fn set_encoded_present(out: &mut MaybeUninit<Self>)

Encodes a handle as present in a slot.

pub fn set_encoded_absent(out: &mut MaybeUninit<Self>)

Encodes a handle as absent in an output.

pub fn is_some(&self) -> bool

Returns whether a handle is present.

pub fn is_none(&self) -> bool

Returns whether a handle is absent.

pub fn take(&self) -> Option<Handle>

Takes the handle, if any, leaving an invalid handle in its place.

pub fn as_raw_handle(&self) -> Option<zx_handle_t>

Returns the underlying zx_handle_t, if any.

Trait Implementations

impl Debug for WireOptionalHandle

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

Formats the value using the given formatter.

impl<D: HandleDecoder + ?Sized> Decode<D> for WireOptionalHandle

fn decode(slot: Slot<'_, Self>, decoder: &mut D) -> Result<(), DecodeError>

Decodes a value into a slot using a decoder.

impl TakeFrom<WireOptionalHandle> for Option<Handle>

fn take_from(from: &WireOptionalHandle) -> Self

Converts from the given T, taking any resources that can’t be cloned.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly during conversion instead of calling take_from.

impl ZeroPadding for WireOptionalHandle

fn zero_padding(out: &mut MaybeUninit<Self>)

Writes zeroes to the padding for this type, if any.