r_extcap::controls::synchronous

Struct ExtcapControlReader

pub struct ExtcapControlReader { /* private fields */ }

Expand description

A reader for the Extcap control pipe.

Implementations§

impl ExtcapControlReader

pub fn new(in_path: &Path) -> Self

Creates a new instance of ExtcapControlReader.

in_path: The path of the extcap control pipe passed with --extcap-control-in.

pub fn read_control_packet( &self, ) -> Result<ControlPacket<'static>, ReadControlError>

Read one control packet, blocking until the packet arrives. Since the control packet pipe is expected to stay open for the entire duration of the extcap program, if the pipe is closed prematurely in this function here, UnexpectedEof will be returned.

Auto Trait Implementations§

impl Freeze for ExtcapControlReader

impl RefUnwindSafe for ExtcapControlReader

impl Send for ExtcapControlReader

impl Sync for ExtcapControlReader

impl Unpin for ExtcapControlReader

impl UnwindSafe for ExtcapControlReader

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.