Struct FuturesMap 

pub struct FuturesMap<ID, O> { /* private fields */ }

Represents a map of Futures.

Each future must finish within the specified time and the map never outgrows its capacity.

Implementations

impl<ID, O> FuturesMap<ID, O>

pub fn new( make_delay: impl Fn() -> Delay + Send + Sync + 'static, capacity: usize, ) -> Self

impl<ID, O> FuturesMap<ID, O>

where ID: Clone + Hash + Eq + Send + Unpin + 'static, O: 'static,

pub fn try_push<F>( &mut self, future_id: ID, future: F, ) -> Result<(), PushError<Pin<Box<dyn AnyFuture<Output = O> + Send>>>>

where F: AnyFuture<Output = O>,

Push a future into the map.

This method inserts the given future with defined future_id to the set. If the length of the map is equal to the capacity, this method returns PushError::BeyondCapacity, that contains the passed future. In that case, the future is not inserted to the map. If a future with the given future_id already exists, then the old future will be replaced by a new one. In that case, the returned error PushError::Replaced contains the old future.

pub fn remove( &mut self, id: ID, ) -> Option<Pin<Box<dyn AnyFuture<Output = O> + Send>>>

pub fn contains(&self, id: ID) -> bool

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn poll_ready_unpin(&mut self, cx: &mut Context<'_>) -> Poll<()>

pub fn poll_unpin( &mut self, cx: &mut Context<'_>, ) -> Poll<(ID, Result<O, Timeout>)>

pub fn iter_of_type<T>(&self) -> impl Iterator<Item = (&ID, Pin<&T>)>

where T: 'static,

Returns an iterator over all futures of type T pushed via FuturesMap::try_push. This iterator returns futures in an arbitrary order, which may change.

If downcasting a future to T fails it will be skipped in the iterator.

pub fn iter_mut_of_type<T>( &mut self, ) -> impl Iterator<Item = (&ID, Pin<&mut T>)>

where T: 'static,

Returns an iterator with mutable access over all futures of type T pushed via FuturesMap::try_push. This iterator returns futures in an arbitrary order, which may change.

If downcasting a future to T fails it will be skipped in the iterator.