Struct strawpoll::Strawpoll

pub struct Strawpoll<F> { /* fields omitted */ }

Polling wrapper that avoids spurious calls to poll on F.

Methods

impl<F> Strawpoll<F>

pub fn new(f: F) -> Self

Wrap f to avoid spurious polling on it.

pub fn poll_fn<P, R>(
    self: Pin<&mut Self>,
    cx: &mut Context,
    poll_fn: P
) -> Poll<R> where
    P: FnMut(Pin<&mut F>, &mut Context) -> Poll<R>, 

Call poll_fn with F pinned only if F really needs to be polled.

Specifically, poll_fn will only be called if:

• F has never been polled; or
• cx contains a new waker; or
• F was woken up.

Trait Implementations

impl<F: Debug> Debug for Strawpoll<F>

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

Formats the value using the given formatter.

impl<F> Deref for Strawpoll<F>

type Target = F

The resulting type after dereferencing.

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

Dereferences the value.

impl<F> DerefMut for Strawpoll<F>

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

Mutably dereferences the value.

impl<F> From<F> for Strawpoll<F>

fn from(f: F) -> Self

Performs the conversion.

impl<F> Future for Strawpoll<F> where
    F: Future, 

type Output = F::Output

The type of value produced on completion.

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

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

impl<F> Unpin for Strawpoll<F> where
    F: Unpin,