pub struct Downloads<ZN, ZV, ZSTip>where
ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static,
ZN::Future: Send,
ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static,
ZV::Future: Send,
ZSTip: ChainTip + Clone + Send + 'static,{
network: ZN,
verifier: ZV,
latest_chain_tip: ZSTip,
lookahead_limit: usize,
max_checkpoint_height: Height,
past_lookahead_limit_sender: Arc<Mutex<Sender<bool>>>,
past_lookahead_limit_receiver: WatchReceiver<bool>,
pending: FuturesUnordered<JoinHandle<Result<(Height, Hash), (BlockDownloadVerifyError, Hash)>>>,
cancel_handles: HashMap<Hash, Sender<()>>,
}
Expand description
Represents a [Stream
] of download and verification tasks during chain sync.
Fields§
§network: ZN
A service that forwards requests to connected peers, and returns their responses.
verifier: ZV
A service that verifies downloaded blocks.
latest_chain_tip: ZSTip
Allows efficient access to the best tip of the blockchain.
lookahead_limit: usize
The configured lookahead limit, after applying the minimum limit.
max_checkpoint_height: Height
The largest block height for the checkpoint verifier, based on the current config.
past_lookahead_limit_sender: Arc<Mutex<Sender<bool>>>
Sender that is set to true
when the downloader is past the lookahead limit.
This is based on the downloaded block height and the state tip height.
past_lookahead_limit_receiver: WatchReceiver<bool>
Receiver for past_lookahead_limit_sender
, which is used to avoid accessing the mutex.
pending: FuturesUnordered<JoinHandle<Result<(Height, Hash), (BlockDownloadVerifyError, Hash)>>>
A list of pending block download and verify tasks.
cancel_handles: HashMap<Hash, Sender<()>>
A list of channels that can be used to cancel pending block download and verify tasks.
Implementations§
source§impl<ZN, ZV, ZSTip> Downloads<ZN, ZV, ZSTip>where
ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static,
ZN::Future: Send,
ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static,
ZV::Future: Send,
ZSTip: ChainTip + Clone + Send + 'static,
impl<ZN, ZV, ZSTip> Downloads<ZN, ZV, ZSTip>where ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static, ZN::Future: Send, ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static, ZV::Future: Send, ZSTip: ChainTip + Clone + Send + 'static,
pub(crate) fn project<'pin>( self: Pin<&'pin mut Self> ) -> __DownloadsProjection<'pin, ZN, ZV, ZSTip>
pub(crate) fn project_ref<'pin>( self: Pin<&'pin Self> ) -> __DownloadsProjectionRef<'pin, ZN, ZV, ZSTip>
source§impl<ZN, ZV, ZSTip> Downloads<ZN, ZV, ZSTip>where
ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static,
ZN::Future: Send,
ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static,
ZV::Future: Send,
ZSTip: ChainTip + Clone + Send + 'static,
impl<ZN, ZV, ZSTip> Downloads<ZN, ZV, ZSTip>where ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static, ZN::Future: Send, ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static, ZV::Future: Send, ZSTip: ChainTip + Clone + Send + 'static,
sourcepub fn new(
network: ZN,
verifier: ZV,
latest_chain_tip: ZSTip,
past_lookahead_limit_sender: Sender<bool>,
lookahead_limit: usize,
max_checkpoint_height: Height
) -> Self
pub fn new( network: ZN, verifier: ZV, latest_chain_tip: ZSTip, past_lookahead_limit_sender: Sender<bool>, lookahead_limit: usize, max_checkpoint_height: Height ) -> Self
Initialize a new download stream with the provided network
and
verifier
services.
Uses the latest_chain_tip
and lookahead_limit
to drop blocks
that are too far ahead of the current state tip.
Uses max_checkpoint_height
to work around a known block timeout (#5125).
The Downloads
stream is agnostic to the network policy, so retry and
timeout limits should be applied to the network
service passed into
this constructor.
sourcepub async fn download_and_verify(
&mut self,
hash: Hash
) -> Result<(), BlockDownloadVerifyError>
pub async fn download_and_verify( &mut self, hash: Hash ) -> Result<(), BlockDownloadVerifyError>
Queue a block for download and verification.
This method waits for the network to become ready, and returns an error only if the network service fails. It returns immediately after queuing the request.
sourcepub fn cancel_all(&mut self)
pub fn cancel_all(&mut self)
Cancel all running tasks and reset the downloader state.
Trait Implementations§
source§impl<ZN, ZV, ZSTip> Debug for Downloads<ZN, ZV, ZSTip>where
ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static + Debug,
ZN::Future: Send,
ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static + Debug,
ZV::Future: Send,
ZSTip: ChainTip + Clone + Send + 'static + Debug,
impl<ZN, ZV, ZSTip> Debug for Downloads<ZN, ZV, ZSTip>where ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static + Debug, ZN::Future: Send, ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static + Debug, ZV::Future: Send, ZSTip: ChainTip + Clone + Send + 'static + Debug,
source§impl<ZN, ZV, ZSTip> Stream for Downloads<ZN, ZV, ZSTip>where
ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static,
ZN::Future: Send,
ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static,
ZV::Future: Send,
ZSTip: ChainTip + Clone + Send + 'static,
impl<ZN, ZV, ZSTip> Stream for Downloads<ZN, ZV, ZSTip>where ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static, ZN::Future: Send, ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static, ZV::Future: Send, ZSTip: ChainTip + Clone + Send + 'static,
impl<'pin, ZN, ZV, ZSTip> Unpin for Downloads<ZN, ZV, ZSTip>where ZN: Service<Request, Response = Response, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + 'static, ZN::Future: Send, ZV: Service<Request, Response = Hash, Error = Box<dyn Error + Send + Sync + 'static>> + Send + Sync + Clone + 'static, ZV::Future: Send, ZSTip: ChainTip + Clone + Send + 'static, __Downloads<'pin, ZN, ZV, ZSTip>: Unpin,
Auto Trait Implementations§
impl<ZN, ZV, ZSTip> !RefUnwindSafe for Downloads<ZN, ZV, ZSTip>
impl<ZN, ZV, ZSTip> Send for Downloads<ZN, ZV, ZSTip>
impl<ZN, ZV, ZSTip> Sync for Downloads<ZN, ZV, ZSTip>where ZSTip: Sync,
impl<ZN, ZV, ZSTip> !UnwindSafe for Downloads<ZN, ZV, ZSTip>
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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,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where F: FnMut(Self::Item) -> U, U: Stream, Self: Sized,
§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,
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,
StreamExt::map
] but flattens nested Stream
s
and polls them concurrently, yielding items in any order, as they made
available. Read more§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,
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,
StreamExt::fold
] that holds internal state
and produces a new stream. Read more§fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Self: Sized,
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,
true
. Read more§fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Self: Sized,
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,
true
. Read more§fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where
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Self: Sized,
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>where Fut: Future, Self: Sized,
§fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
Self: Sized,
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>, Self: Sized,
§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,
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,
§fn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where Self: Sized,
n
items of the underlying stream. Read more§fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where Self: Sized,
n
items of the underlying stream. Read more§fn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self>where Self: Sized + UnwindSafe,
§fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where
Self: Sized + Send + 'a,
fn boxed<'a>( self ) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where Self: Sized + Send + 'a,
§fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where
Self: Sized + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where Self: Sized + 'a,
§fn buffered(self, n: usize) -> Buffered<Self>where
Self::Item: Future,
Self: Sized,
fn buffered(self, n: usize) -> Buffered<Self>where Self::Item: Future, Self: Sized,
§fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where
Self::Item: Future,
Self: Sized,
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>where Self::Item: Future, Self: Sized,
§fn zip<St>(self, other: St) -> Zip<Self, St>where
St: Stream,
Self: Sized,
fn zip<St>(self, other: St) -> Zip<Self, St>where St: Stream, Self: Sized,
§fn chain<St>(self, other: St) -> Chain<Self, St>where
St: Stream<Item = Self::Item>,
Self: Sized,
fn chain<St>(self, other: St) -> Chain<Self, St>where St: Stream<Item = Self::Item>, Self: Sized,
§fn peekable(self) -> Peekable<Self>where
Self: Sized,
fn peekable(self) -> Peekable<Self>where Self: Sized,
peek
method. Read more§fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
fn chunks(self, capacity: usize) -> Chunks<Self>where Self: Sized,
§fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where
Self: Sized,
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where Self: Sized,
§fn forward<S>(self, sink: S) -> Forward<Self, S>where
S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream + Sized,
fn forward<S>(self, sink: S) -> Forward<Self, S>where S: Sink<Self::Ok, Error = Self::Error>, Self: TryStream + Sized,
§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,
§fn left_stream<B>(self) -> Either<Self, B>where
B: Stream<Item = Self::Item>,
Self: Sized,
fn left_stream<B>(self) -> Either<Self, B>where B: Stream<Item = Self::Item>, Self: Sized,
§fn right_stream<B>(self) -> Either<B, Self>where
B: Stream<Item = Self::Item>,
Self: Sized,
fn right_stream<B>(self) -> Either<B, Self>where B: Stream<Item = Self::Item>, Self: Sized,
§fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where Self: Unpin,
Stream::poll_next
] on Unpin
stream types.§fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where Self: Unpin + FusedStream,
§impl<St> StreamExt for Stwhere
St: Stream + ?Sized,
impl<St> StreamExt for Stwhere St: Stream + ?Sized,
§fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
fn next(&mut self) -> Next<'_, Self>where Self: Unpin,
None
if the
stream is finished. Read more§fn try_next<T, E>(&mut self) -> TryNext<'_, Self>where
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fn try_next<T, E>(&mut self) -> TryNext<'_, Self>where Self: Stream<Item = Result<T, E>> + Unpin,
§fn map<T, F>(self, f: F) -> Map<Self, F>where
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Self: Sized,
fn map<T, F>(self, f: F) -> Map<Self, F>where F: FnMut(Self::Item) -> T, Self: Sized,
§fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>where
F: FnMut(Self::Item) -> Option<T>,
Self: Sized,
fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>where F: FnMut(Self::Item) -> Option<T>, Self: Sized,
None
. Read more§fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,
Self: Sized,
fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>where F: FnMut(Self::Item) -> Fut, Fut: Future, Self: Sized,
§fn merge<U>(self, other: U) -> Merge<Self, U>where
U: Stream<Item = Self::Item>,
Self: Sized,
fn merge<U>(self, other: U) -> Merge<Self, U>where U: Stream<Item = Self::Item>, Self: Sized,
§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,
§fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<T>,
Self: Sized,
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where F: FnMut(Self::Item) -> Option<T>, Self: Sized,
§fn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where Self: Sized,
None
. Read more§fn take(self, n: usize) -> Take<Self>where
Self: Sized,
fn take(self, n: usize) -> Take<Self>where Self: Sized,
n
items of the underlying stream. Read more§fn take_while<F>(self, f: F) -> TakeWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,
Self: Sized,
fn take_while<F>(self, f: F) -> TakeWhile<Self, F>where F: FnMut(&Self::Item) -> bool, Self: Sized,
true
. Read more§fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
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n
first items of the
underlying stream. Read more§fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>where
F: FnMut(&Self::Item) -> bool,
Self: Sized,
fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>where F: FnMut(&Self::Item) -> bool, Self: Sized,
true
. Read more§fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>where
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fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>where Self: Unpin, F: FnMut(Self::Item) -> bool,
§fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,
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§fn chain<U>(self, other: U) -> Chain<Self, U>where
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Self: Sized,
fn chain<U>(self, other: U) -> Chain<Self, U>where U: Stream<Item = Self::Item>, Self: Sized,
§fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>where
Self: Sized,
F: FnMut(B, Self::Item) -> B,
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>where Self: Sized, F: FnMut(B, Self::Item) -> B,
§fn collect<T>(self) -> Collect<Self, T>where
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Self: Sized,
fn collect<T>(self) -> Collect<Self, T>where T: FromStream<Self::Item>, Self: Sized,
§fn timeout(self, duration: Duration) -> Timeout<Self>where
Self: Sized,
fn timeout(self, duration: Duration) -> Timeout<Self>where Self: Sized,
§fn timeout_repeating(self, interval: Interval) -> TimeoutRepeating<Self>where
Self: Sized,
fn timeout_repeating(self, interval: Interval) -> TimeoutRepeating<Self>where Self: Sized,
§impl<T> Tap for T
impl<T> Tap for T
§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Selfwhere
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of a value. Read more§fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere
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of a value. Read more§fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Selfwhere
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view of a value. Read more§fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere
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view of a value. Read more§fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Selfwhere
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,
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of a value. Read more§fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere
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T: ?Sized,
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,
Deref::Target
of a value. Read more§fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
.tap()
only in debug builds, and is erased in release builds.§fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
.tap_mut()
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builds.§fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Selfwhere
Self: Borrow<B>,
B: ?Sized,
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,
.tap_borrow()
only in debug builds, and is erased in release
builds.§fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere
Self: BorrowMut<B>,
B: ?Sized,
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,
.tap_borrow_mut()
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builds.§fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Selfwhere
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R: ?Sized,
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,
.tap_ref()
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builds.§fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere
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R: ?Sized,
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,
.tap_ref_mut()
only in debug builds, and is erased in release
builds.§impl<T> TryConv for T
impl<T> TryConv for T
§impl<S> TryStreamExt for Swhere
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§fn err_into<E>(self) -> ErrInto<Self, E>where
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§fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where
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§fn map_err<E, F>(self, f: F) -> MapErr<Self, F>where
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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,
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,
f
. Read more§fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where
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Fut: TryFuture<Ok = Self::Ok>,
Self: Sized,
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,
f
. Read more§fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where
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§fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
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fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where F: FnMut(&Self::Error), Self: Sized,
§fn into_stream(self) -> IntoStream<Self>where
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fn into_stream(self) -> IntoStream<Self>where Self: Sized,
§fn try_next(&mut self) -> TryNext<'_, Self>where
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fn try_next(&mut self) -> TryNext<'_, Self>where Self: Unpin,
§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,
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,
§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,
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,
true
. Read more§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,
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,
true
. Read more§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,
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,
§fn try_collect<C>(self) -> TryCollect<Self, C>where
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fn try_collect<C>(self) -> TryCollect<Self, C>where C: Default + Extend<Self::Ok>, Self: Sized,
§fn try_chunks(self, capacity: usize) -> TryChunks<Self>where
Self: Sized,
fn try_chunks(self, capacity: usize) -> TryChunks<Self>where Self: Sized,
§fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>where
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F: FnMut(&Self::Ok) -> Fut,
Self: Sized,
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§fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>where
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F: FnMut(Self::Ok) -> Fut,
Self: Sized,
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,
§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,
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,
§fn try_flatten(self) -> TryFlatten<Self>where
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<Self::Ok as TryStream>::Error: From<Self::Error>,
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fn try_flatten(self) -> TryFlatten<Self>where Self::Ok: TryStream, <Self::Ok as TryStream>::Error: From<Self::Error>, Self: Sized,
§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,
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,
§fn try_concat(self) -> TryConcat<Self>where
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Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,
fn try_concat(self) -> TryConcat<Self>where Self: Sized, Self::Ok: Extend<<Self::Ok as IntoIterator>::Item> + IntoIterator + Default,
§fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>where Self::Ok: TryFuture<Error = Self::Error>, Self: Sized,
§fn try_buffered(self, n: usize) -> TryBuffered<Self>where
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Self: Sized,
fn try_buffered(self, n: usize) -> TryBuffered<Self>where Self::Ok: TryFuture<Error = Self::Error>, Self: Sized,
§fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>>where
Self: Unpin,
fn try_poll_next_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Option<Result<Self::Ok, Self::Error>>>where Self: Unpin,
TryStream::try_poll_next
] on Unpin
stream types.§fn into_async_read(self) -> IntoAsyncRead<Self>where
Self: Sized + TryStreamExt<Error = Error>,
Self::Ok: AsRef<[u8]>,
fn into_async_read(self) -> IntoAsyncRead<Self>where Self: Sized + TryStreamExt<Error = Error>, Self::Ok: AsRef<[u8]>,
AsyncBufRead
. Read more