pub struct Client<T> { /* private fields */ }
Expand description

Client for a Northstar runtime instance.

use futures::StreamExt;
use northstar_client::Client;
use northstar_client::model::Version;

async fn main() {
    let mut client = Client::new(tokio::net::TcpStream::connect("localhost:4200").await.unwrap(), None).await.unwrap();
    client.start("hello:0.0.1").await.expect("failed to start \"hello\"");
    while let Some(notification) = client.next().await {
        println!("{:?}", notification);
    }
}

Implementations§

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impl Client<UnixStream>

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pub async fn from_env(notifications: Option<usize>) -> Result<Self, Error>

Tries to create a client by accessing NORTHSTAR_CONSOLE env variable

Errors

An Err is returned if the NORTHSTAR_CONSOLE environment variable is not set or has an invalid file descriptor for the unix socket.

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impl<'a, T: AsyncRead + AsyncWrite + Unpin> Client<T>

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pub async fn new( io: T, notifications: Option<usize> ) -> Result<Client<T>, Error>

Create a new northstar client and connect to a runtime instance running on host.

Arguments
  • io - Connection medium (e.g. Unix or TCP socket)
  • notifications - Optional buffer size for receiving notifications
  • timeout - Timeout of connection establishment
Errors

In addition to the errors that can happen when trying to connect, an Err is returned if the connection establishment times out.

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pub fn framed(self) -> Connection<T>

Convert client into a connection

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pub async fn request(&mut self, request: Request) -> Result<Response, Error>

Perform a request response sequence

let response = client.request(List).await.expect("failed to request container list");
println!("{:?}", response);
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pub async fn ident(&mut self) -> Result<Container, Error>

Request the identificaiton of this container

let ident = client.ident().await.expect("failed to identity");
println!("{}", ident);
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pub async fn list(&mut self) -> Result<Vec<Container>, Error>

Request a list of installed containers

let containers = client.list().await.expect("failed to request container list");
println!("{:#?}", containers);
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pub async fn repositories(&mut self) -> Result<HashSet<RepositoryId>, Error>

Request a list of repositories

let repositories = client.repositories().await.expect("failed to request repository list");
println!("{:#?}", repositories);
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pub async fn start<C>(&mut self, container: C) -> Result<(), Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Start container with name

client.start("hello:0.0.1").await.expect("failed to start \"hello\"");
// Print start notification
println!("{:#?}", client.next().await);
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pub async fn start_command<C, A, E, K>( &mut self, container: C, init: Option<A>, args: impl IntoIterator<Item = A>, env: impl IntoIterator<Item = (E, K)> ) -> Result<(), Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static, A: TryInto<NonNulString>, A::Error: Error + Send + Sync + 'static, E: TryInto<NonNulString>, E::Error: Error + Send + Sync + 'static, K: TryInto<NonNulString>, K::Error: Error + Send + Sync + 'static,

Start container name and pass init, arguments and set additional env variables.

let mut env = HashMap::new();
env.insert("FOO", "blah");
client.start_command("hello:0.0.1", Some("/bin/hello"), ["--dump", "-v"], env).await.expect("failed to start \"hello\"");
// Print start notification
println!("{:#?}", client.next().await);
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pub async fn kill<C>(&mut self, container: C, signal: i32) -> Result<(), Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Kill container with name

client.kill("hello:0.0.1", 15).await.expect("failed to start \"hello\"");
// Print stop notification
println!("{:#?}", client.next().await);
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pub async fn install_file( &mut self, npk: &Path, repository: &str ) -> Result<Container, Error>

Install a npk from path

let npk = Path::new("test.npk");
client.install_file(npk, "default").await.expect("failed to install \"test.npk\" into repository \"default\"");
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pub async fn install( &mut self, npk: impl AsyncRead + Unpin, size: u64, repository: &str ) -> Result<Container, Error>

Install a npk

let npk = fs::File::open("test.npk").await.expect("failed to open \"test.npk\"");
let size = npk.metadata().await.unwrap().len();
client.install(npk, size, "default").await.expect("failed to install \"test.npk\" into repository \"default\"");
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pub async fn uninstall<C>( &mut self, container: C, wipe: bool ) -> Result<(), Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Uninstall a npk and optionally wipe the containers persistent dir

client.uninstall("hello:0.0.1", false).await.expect("failed to uninstall \"hello\"");
// Print stop notification
println!("{:#?}", client.next().await);
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pub async fn shutdown(&mut self)

Stop the runtime

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pub async fn mount<C>(&mut self, container: C) -> Result<MountResult, Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Mount a container

let mut client = Client::new(tokio::net::TcpStream::connect("localhost:4200").await.unwrap(), None).await.unwrap();
client.mount("test:0.0.1").await.expect("failed to mount");
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pub async fn mount_all<C, I>( &mut self, containers: I ) -> Result<Vec<MountResult>, Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static, I: 'a + IntoIterator<Item = C>,

Mount a list of containers

let mut client = Client::new(tokio::net::TcpStream::connect("localhost:4200").await.unwrap(), None).await.unwrap();
client.mount_all(vec!("hello-world:0.0.1", "cpueater:0.0.1")).await.expect("failed to mount");
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pub async fn umount<C>(&mut self, container: C) -> Result<UmountResult, Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Umount a mounted container

client.umount("hello:0.0.1").await.expect("failed to unmount \"hello:0.0.1\"");
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pub async fn umount_all<C, I>( &mut self, containers: I ) -> Result<Vec<UmountResult>, Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static, I: 'a + IntoIterator<Item = C>,

Umount a list of mounted containers

client.umount_all(vec!("hello:0.0.1", "cpueater:0.0.1")).await.expect("failed to unmount \"hello:0.0.1\" and \"cpueater:0.0.1\"");
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pub async fn inspect<C>(&mut self, container: C) -> Result<ContainerData, Error>where C: TryInto<Container>, C::Error: Error + Send + Sync + 'static,

Gather container statistics

println!("{:?}", client.inspect("hello:0.0.1").await.unwrap());
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pub async fn create_token<R, S>( &mut self, target: R, shared: S ) -> Result<Token, Error>where R: TryInto<Name>, R::Error: Error + Send + Sync + 'static, S: AsRef<[u8]>,

Create a token

The target parameter must be the container name (without version) of the container that will try to verify the token. The token can only be successfully verified by the container that is started with the name target! The shared parameter is added into the token in order to make it specific to a dedicated purpose, e.g. “mqtt”.

println!("{:?}", client.create_token("webserver", "http").await.unwrap());
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pub async fn verify_token<R, S>( &mut self, token: &Token, user: R, shared: S ) -> Result<VerificationResult, Error>where R: TryInto<Name>, R::Error: Error + Send + Sync + 'static, S: AsRef<[u8]>,

Verify a slice of bytes with a token

The token parameter shall contain a token that is received from a container. The user parameter must match the name of the container, that created the token and send it to the container that want to verify the token. shared is some salt that makes a token specific for a usecase can must just match the value used when the the token is created.

let token = client.create_token("hello", "#noafd").await.unwrap(); // token can only verified by container `hello`
assert_eq!(client.verify_token(&token, "hello", "#noafd").await.unwrap(), VerificationResult::Ok);
assert_eq!(client.verify_token(&token, "hello", "").await.unwrap(), VerificationResult::Ok);

Trait Implementations§

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impl<T: AsyncRead + AsyncWrite + Unpin> Stream for Client<T>

Stream notifications

use futures::StreamExt;

async fn main() {
    let mut client = Client::new(tokio::net::TcpStream::connect("localhost:4200").await.unwrap(), None).await.unwrap();
    client.start("hello:0.0.1").await.expect("failed to start \"hello\"");
    while let Some(notification) = client.next().await {
        println!("{:?}", notification);
    }
}
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type Item = Result<Notification, Error>

Values yielded by the stream.
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fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_> ) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more
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fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Client<T>where T: RefUnwindSafe,

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impl<T> Send for Client<T>where T: Send,

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impl<T> Sync for Client<T>where T: Sync,

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impl<T> Unpin for Client<T>where T: Unpin,

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impl<T> UnwindSafe for Client<T>where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> StreamExt for Twhere T: Stream + ?Sized,

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fn next(&mut self) -> Next<'_, Self>where Self: Unpin,

Creates a future that resolves to the next item in the stream. Read more
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fn into_future(self) -> StreamFuture<Self>where Self: Sized + Unpin,

Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is None. Read more
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fn map<T, F>(self, f: F) -> Map<Self, F>where F: FnMut(Self::Item) -> T, Self: Sized,

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more
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fn enumerate(self) -> Enumerate<Self>where Self: Sized,

Creates a stream which gives the current iteration count as well as the next value. Read more
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fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Filters the values produced by this stream according to the provided asynchronous predicate. Read more
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fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = Option<T>>, Self: Sized,

Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future, Self: Sized,

Computes from this stream’s items new items of a different type using an asynchronous closure. Read more
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fn collect<C>(self) -> Collect<Self, C>where C: Default + Extend<Self::Item>, Self: Sized,

Transforms a stream into a collection, returning a future representing the result of that computation. Read more
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fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Sized + Stream<Item = (A, B)>,

Converts a stream of pairs into a future, which resolves to pair of containers. Read more
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fn concat(self) -> Concat<Self>where Self: Sized, Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,

Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
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fn count(self) -> Count<Self>where Self: Sized,

Drives the stream to completion, counting the number of items. Read more
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fn cycle(self) -> Cycle<Self>where Self: Sized + Clone,

Repeats a stream endlessly. Read more
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fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>where F: FnMut(T, Self::Item) -> Fut, Fut: Future<Output = T>, Self: Sized,

Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
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fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more
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fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more
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fn flatten(self) -> Flatten<Self>where Self::Item: Stream, Self: Sized,

Flattens a stream of streams into just one continuous stream. Read more
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fn flatten_unordered( self, limit: impl Into<Option<usize>> ) -> FlattenUnorderedWithFlowController<Self, ()>where Self::Item: Stream + Unpin, Self: Sized,

Flattens a stream of streams into just one continuous stream. Polls inner streams produced by the base stream concurrently. Read more
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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where F: FnMut(Self::Item) -> U, U: Stream, Self: Sized,

Maps a stream like [StreamExt::map] but flattens nested Streams. Read more
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fn flat_map_unordered<U, F>( self, limit: impl Into<Option<usize>>, f: F ) -> FlatMapUnordered<Self, U, F>where U: Stream + Unpin, F: FnMut(Self::Item) -> U, Self: Sized,

Maps a stream like [StreamExt::map] but flattens nested Streams and polls them concurrently, yielding items in any order, as they made available. Read more
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fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>where F: FnMut(&mut S, Self::Item) -> Fut, Fut: Future<Output = Option<B>>, Self: Sized,

Combinator similar to [StreamExt::fold] that holds internal state and produces a new stream. Read more
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fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more
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fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Take elements from this stream while the provided asynchronous predicate resolves to true. Read more
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fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where Fut: Future, Self: Sized,

Take elements from this stream until the provided future resolves. Read more
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fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>, Self: Sized,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
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fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F ) -> ForEachConcurrent<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>, Self: Sized,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more
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fn take(self, n: usize) -> Take<Self>where Self: Sized,

Creates a new stream of at most n items of the underlying stream. Read more
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fn skip(self, n: usize) -> Skip<Self>where Self: Sized,

Creates a new stream which skips n items of the underlying stream. Read more
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fn fuse(self) -> Fuse<Self>where Self: Sized,

Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more
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fn by_ref(&mut self) -> &mut Self

Borrows a stream, rather than consuming it. Read more
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fn catch_unwind(self) -> CatchUnwind<Self>where Self: Sized + UnwindSafe,

Catches unwinding panics while polling the stream. Read more
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fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a>>where Self: Sized + Send + 'a,

Wrap the stream in a Box, pinning it. Read more
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fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>where Self: Sized + 'a,

Wrap the stream in a Box, pinning it. Read more
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fn buffered(self, n: usize) -> Buffered<Self>where Self::Item: Future, Self: Sized,

An adaptor for creating a buffered list of pending futures. Read more
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fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where Self::Item: Future, Self: Sized,

An adaptor for creating a buffered list of pending futures (unordered). Read more
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fn zip<St>(self, other: St) -> Zip<Self, St>where St: Stream, Self: Sized,

An adapter for zipping two streams together. Read more
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fn chain<St>(self, other: St) -> Chain<Self, St>where St: Stream<Item = Self::Item>, Self: Sized,

Adapter for chaining two streams. Read more
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fn peekable(self) -> Peekable<Self>where Self: Sized,

Creates a new stream which exposes a peek method. Read more
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fn chunks(self, capacity: usize) -> Chunks<Self>where Self: Sized,

An adaptor for chunking up items of the stream inside a vector. Read more
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fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where Self: Sized,

An adaptor for chunking up ready items of the stream inside a vector. Read more
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fn forward<S>(self, sink: S) -> Forward<Self, S>where S: Sink<Self::Ok, Error = Self::Error>, Self: TryStream + Sized,

A future that completes after the given stream has been fully processed into the sink and the sink has been flushed and closed. Read more
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fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)where Self: Sink<Item> + Sized,

Splits this Stream + Sink object into separate Sink and Stream objects. Read more
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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
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fn left_stream<B>(self) -> Either<Self, B>where B: Stream<Item = Self::Item>, Self: Sized,

Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more
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fn right_stream<B>(self) -> Either<B, Self>where B: Stream<Item = Self::Item>, Self: Sized,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more
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fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where Self: Unpin,

A convenience method for calling [Stream::poll_next] on Unpin stream types.
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fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where Self: Unpin + FusedStream,

Returns a Future that resolves when the next item in this stream is ready. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<S, T, E> TryStream for Swhere S: Stream<Item = Result<T, E>> + ?Sized,

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type Ok = T

The type of successful values yielded by this future
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type Error = E

The type of failures yielded by this future
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fn try_poll_next( self: Pin<&mut S>, cx: &mut Context<'_> ) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more
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impl<S> TryStreamExt for Swhere S: TryStream + ?Sized,

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fn err_into<E>(self) -> ErrInto<Self, E>where Self: Sized, Self::Error: Into<E>,

Wraps the current stream in a new stream which converts the error type into the one provided. Read more
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fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where Self: Sized, F: FnMut(Self::Ok) -> T,

Wraps the current stream in a new stream which maps the success value using the provided closure. Read more
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fn map_err<E, F>(self, f: F) -> MapErr<Self, F>where Self: Sized, F: FnMut(Self::Error) -> E,

Wraps the current stream in a new stream which maps the error value using the provided closure. Read more
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fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>where F: FnMut(Self::Ok) -> Fut, Fut: TryFuture<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 more
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fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where F: FnMut(Self::Error) -> Fut, Fut: TryFuture<Ok = Self::Ok>, Self: Sized,

Chain on a computation for when an error happens, passing the erroneous result to the provided closure f. Read more
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fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where F: FnMut(&Self::Ok), Self: Sized,

Do something with the success value of this stream, afterwards passing it on. Read more
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fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where F: FnMut(&Self::Error), Self: Sized,

Do something with the error value of this stream, afterwards passing it on. Read more
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fn into_stream(self) -> IntoStream<Self>where Self: Sized,

Wraps a [TryStream] into a type that implements Stream Read more
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fn try_next(&mut self) -> TryNext<'_, Self>where Self: Unpin,

Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more
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fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>where F: FnMut(Self::Ok) -> Fut, Fut: TryFuture<Ok = (), Error = Self::Error>, Self: Sized,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more
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fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>where F: FnMut(&Self::Ok) -> Fut, Fut: TryFuture<Ok = bool, Error = Self::Error>, Self: Sized,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more
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fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>where F: FnMut(&Self::Ok) -> Fut, Fut: TryFuture<Ok = bool, Error = Self::Error>, Self: Sized,

Take elements on this stream while the provided asynchronous predicate resolves to true. Read more
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fn try_for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F ) -> TryForEachConcurrent<Self, Fut, F>where F: FnMut(Self::Ok) -> Fut, Fut: Future<Output = Result<(), Self::Error>>, Self: Sized,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more
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fn try_collect<C>(self) -> TryCollect<Self, C>where C: Default + Extend<Self::Ok>, Self: Sized,

Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more
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fn try_chunks(self, capacity: usize) -> TryChunks<Self>where Self: Sized,

An adaptor for chunking up successful items of the stream inside a vector. Read more
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fn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>where Self: Sized,

An adaptor for chunking up successful, ready items of the stream inside a vector. Read more
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fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>where Fut: Future<Output = bool>, F: FnMut(&Self::Ok) -> Fut, Self: Sized,

Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more
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fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>where Fut: TryFuture<Ok = Option<T>, Error = Self::Error>, F: FnMut(Self::Ok) -> Fut, Self: Sized,

Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more
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fn try_flatten_unordered( self, limit: impl Into<Option<usize>> ) -> TryFlattenUnordered<Self>where Self::Ok: TryStream + Unpin, <Self::Ok as TryStream>::Error: From<Self::Error>, Self: Sized,

Flattens a stream of streams into just one continuous stream. Produced streams will be polled concurrently and any errors will be passed through without looking at them. If the underlying base stream returns an error, it will be immediately propagated. Read more
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fn try_flatten(self) -> TryFlatten<Self>where Self::Ok: TryStream, <Self::Ok as TryStream>::Error: From<Self::Error>, Self: Sized,

Flattens a stream of streams into just one continuous stream. Read more
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fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>where F: FnMut(T, Self::Ok) -> Fut, Fut: TryFuture<Ok = T, Error = Self::Error>, Self: Sized,

Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
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fn try_concat(self) -> TryConcat<Self>where Self: Sized, Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,

Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
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fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where Self::Ok: TryFuture<Error = Self::Error>, Self: Sized,

Attempt to execute several futures from a stream concurrently (unordered). Read more
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fn try_buffered(self, n: usize) -> TryBuffered<Self>where Self::Ok: TryFuture<Error = Self::Error>, Self: Sized,

Attempt to execute several futures from a stream concurrently. Read more
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fn try_poll_next_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Option<Result<Self::Ok, Self::Error>>>where Self: Unpin,

A convenience method for calling [TryStream::try_poll_next] on Unpin stream types.
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fn into_async_read(self) -> IntoAsyncRead<Self>where Self: Sized + TryStreamExt<Error = Error>, Self::Ok: AsRef<[u8]>,

Adapter that converts this stream into an AsyncBufRead. Read more
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fn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F>where Self: Sized, F: FnMut(Self::Ok) -> Fut, Fut: Future<Output = bool>,

Attempt to execute a predicate over an asynchronous stream and evaluate if all items satisfy the predicate. Exits early if an Err is encountered or if an Ok item is found that does not satisfy the predicate. Read more
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fn try_any<Fut, F>(self, f: F) -> TryAny<Self, Fut, F>where Self: Sized, F: FnMut(Self::Ok) -> Fut, Fut: Future<Output = bool>,

Attempt to execute a predicate over an asynchronous stream and evaluate if any items satisfy the predicate. Exits early if an Err is encountered or if an Ok item is found that satisfies the predicate. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more