Struct ResponseWaiter 

pub struct ResponseWaiter<K: Eq + Hash, R> { /* private fields */ }

A future that resolves with the response for a single request.

Resolves to:

• Ok(response) when PendingRequests::handle_response delivers a value,
• Err(Error::RequestTimeout) when the configured timeout elapses first,
• Err(Error::Canceled) when the request is canceled or the registry is dropped.

Trait Implementations

impl<K: Eq + Hash, R> Drop for ResponseWaiter<K, R>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl<K: Eq + Hash, R> Future for ResponseWaiter<K, R>

type Output = Result<R, Error>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.

impl<K: Eq + Hash, R> Unpin for ResponseWaiter<K, R>

The Sleep is the only !Unpin field and it is kept behind a Pin<Box<_>>; nothing in this struct is self-referential, so it is safe to treat the waiter itself as Unpin regardless of K/R.