Struct signal_hook::iterator::Async
source · pub struct Async { /* private fields */ }
Expand description
An asynchronous stream of registered signals.
It is created by converting Signals
. See
Signals::into_async
.
Cloning
If you register multiple signals, then create multiple Signals
instances by cloning and
convert them to Async
, one of them can „steal“ wakeups for several signals at once. This
one will produce the signals while the others will be silent.
This has an effect if the one consumes them slowly or is dropped after the first one.
It is recommended not to clone the Signals
instances and keep just one Async
stream
around.
Implementations§
Trait Implementations§
source§impl Stream for Async
impl Stream for Async
source§fn poll(&mut self) -> Poll<Option<c_int>, Self::Error>
fn poll(&mut self) -> Poll<Option<c_int>, Self::Error>
Attempt to pull out the next value of this stream, returning
None
if
the stream is finished. Read moresource§fn wait(self) -> Wait<Self>where
Self: Sized,
fn wait(self) -> Wait<Self>where
Self: Sized,
Creates an iterator which blocks the current thread until each item of
this stream is resolved. Read more
source§fn into_future(self) -> StreamFuture<Self>where
Self: Sized,
fn into_future(self) -> StreamFuture<Self>where
Self: Sized,
Converts this stream into a
Future
. Read moresource§fn map_err<U, F>(self, f: F) -> MapErr<Self, F>where
F: FnMut(Self::Error) -> U,
Self: Sized,
fn map_err<U, F>(self, f: F) -> MapErr<Self, F>where
F: FnMut(Self::Error) -> U,
Self: Sized,
source§fn filter<F>(self, f: F) -> Filter<Self, F>where
F: FnMut(&Self::Item) -> bool,
Self: Sized,
fn filter<F>(self, f: F) -> Filter<Self, F>where
F: FnMut(&Self::Item) -> bool,
Self: Sized,
Filters the values produced by this stream according to the provided
predicate. Read more
source§fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<B>,
Self: Sized,
fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<B>,
Self: Sized,
Filters the values produced by this stream while simultaneously mapping
them to a different type. Read more
source§fn then<F, U>(self, f: F) -> Then<Self, F, U>where
F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture,
Self: Sized,
fn then<F, U>(self, f: F) -> Then<Self, F, U>where
F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture,
Self: Sized,
Chain on a computation for when a value is ready, passing the resulting
item to the provided closure
f
. Read moresource§fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U>where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>,
Self: Sized,
fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U>where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>,
Self: Sized,
Chain on a computation for when a value is ready, passing the successful
results to the provided closure
f
. Read moresource§fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U>where
F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>,
Self: Sized,
fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U>where
F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>,
Self: Sized,
Chain on a computation for when an error happens, passing the
erroneous result to the provided closure
f
. Read moresource§fn collect(self) -> Collect<Self>where
Self: Sized,
fn collect(self) -> Collect<Self>where
Self: Sized,
Collect all of the values of this stream into a vector, returning a
future representing the result of that computation. Read more
source§fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T>where
F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>,
Self: Sized,
fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T>where
F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>,
Self: Sized,
Execute an accumulating computation over a stream, collecting all the
values into one final result. Read more
source§fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R>where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Self: Sized,
fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R>where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Self: Sized,
Skip elements on this stream while the predicate provided resolves to
true
. Read moresource§fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R>where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Self: Sized,
fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R>where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Self: Sized,
Take elements from this stream while the predicate provided resolves to
true
. Read moresource§fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U>where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>,
Self: Sized,
fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U>where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>,
Self: Sized,
Runs this stream to completion, executing the provided closure for each
element on the stream. Read more
source§fn from_err<E>(self) -> FromErr<Self, E>where
E: From<Self::Error>,
Self: Sized,
fn from_err<E>(self) -> FromErr<Self, E>where
E: From<Self::Error>,
Self: Sized,
Map this stream’s error to any error implementing
From
for
this stream’s Error
, returning a new stream. Read moresource§fn take(self, amt: u64) -> Take<Self>where
Self: Sized,
fn take(self, amt: u64) -> Take<Self>where
Self: Sized,
Creates a new stream of at most
amt
items of the underlying stream. Read moresource§fn skip(self, amt: u64) -> Skip<Self>where
Self: Sized,
fn skip(self, amt: u64) -> Skip<Self>where
Self: Sized,
Creates a new stream which skips
amt
items of the underlying stream. Read moresource§fn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where
Self: Sized,
Fuse a stream such that
poll
will never again be called once it has
finished. Read moresource§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Borrows a stream, rather than consuming it. Read more
source§fn merge<S>(self, other: S) -> Merge<Self, S>where
S: Stream<Error = Self::Error>,
Self: Sized,
fn merge<S>(self, other: S) -> Merge<Self, S>where
S: Stream<Error = Self::Error>,
Self: Sized,
👎Deprecated: functionality provided by
select
nowAn adapter for merging the output of two streams. Read more
source§fn zip<S>(self, other: S) -> Zip<Self, S>where
S: Stream<Error = Self::Error>,
Self: Sized,
fn zip<S>(self, other: S) -> Zip<Self, S>where
S: Stream<Error = Self::Error>,
Self: Sized,
An adapter for zipping two streams together. Read more
source§fn chain<S>(self, other: S) -> Chain<Self, S>where
S: Stream<Item = Self::Item, Error = Self::Error>,
Self: Sized,
fn chain<S>(self, other: S) -> Chain<Self, S>where
S: Stream<Item = Self::Item, Error = Self::Error>,
Self: Sized,
Adapter for chaining two stream. Read more
source§fn peekable(self) -> Peekable<Self>where
Self: Sized,
fn peekable(self) -> Peekable<Self>where
Self: Sized,
Creates a new stream which exposes a
peek
method. Read moresource§fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
An adaptor for chunking up items of the stream inside a vector. Read more
source§fn select<S>(self, other: S) -> Select<Self, S>where
S: Stream<Item = Self::Item, Error = Self::Error>,
Self: Sized,
fn select<S>(self, other: S) -> Select<Self, S>where
S: Stream<Item = Self::Item, Error = Self::Error>,
Self: Sized,
Creates a stream that selects the next element from either this stream
or the provided one, whichever is ready first. Read more
source§fn forward<S>(self, sink: S) -> Forward<Self, S>where
S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>,
Self: Sized,
fn forward<S>(self, sink: S) -> Forward<Self, S>where
S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>,
Self: Sized,
A future that completes after the given stream has been fully processed
into the sink, including flushing. Read more
source§fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
Self: Sized,
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
Self: Sized,
Do something with each item of this stream, afterwards passing it on. Read more
source§fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnMut(&Self::Error),
Self: Sized,
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnMut(&Self::Error),
Self: Sized,
Do something with the error of this stream, afterwards passing it on. Read more