Struct WriterHandle 

pub struct WriterHandle { /* private fields */ }

The SignalWriter port role.

The staged changes and the per channel sequence counters live on the handle, not in the store: staging is one provider’s private state until its commit, and a sequence number is assigned by the sender (ridl §3.1).

Trait Implementations

impl Attached for WriterHandle

fn catalog(&self) -> &CatalogRef

The catalog this port serves.

impl SignalWriter for WriterHandle

fn set( &mut self, iface: InterfaceNo, ord: Ordinal, bytes: &[u8], ) -> Result<(), WriteError>

Stages a new value.

fn invalidate( &mut self, iface: InterfaceNo, ord: Ordinal, ) -> Result<(), WriteError>

Stages the invalid state (ridl §4.5), with Cause::Declared.

fn touch(&mut self, iface: InterfaceNo, ord: Ordinal) -> Result<(), WriteError>

Stages a re-affirmation of the current value, without a new value.

fn commit(&mut self)

Publishes everything staged. It cannot fail, so it reports nothing — including that the runtime behind the port is gone. A caller learns that from WriteError::Detached on a later set, invalidate or touch, never from that commit. What becomes of the changes staged before a commit whose runtime has already detached is not fixed here.

impl Wakeable for WriterHandle

fn wake_on(&self, _: Interest, waker: &Waker)

Wakes waker when the thing what names may have changed, under the contract above.