pub struct ResumingEventStream { /* private fields */ }Expand description
Reconnecting subscription stream.
Resumption is per-workflow only: per-workflow seq is the only ordering
that exists, so only SubscribeTarget::Workflow streams track a cursor
(resume_from_seq = last delivered + 1) and deduplicate by sequence
number. Filtered and firehose streams are live-only by design: a
transient disconnect after at least one delivered event ends the stream
with an honest ClientError::Unavailable instead of silently
reattaching a gapped stream; reconnect-live-only is allowed only while
nothing has been delivered yet.
Connect-failure contract (cross-SDK): a failed subscription attach is
classified exactly like a mid-stream drop. ClientError::Unavailable
(transport-level connect failure, DNS/TLS/socket failure, abnormal close)
is retryable and the stream re-attaches — on the initial attach as well as
after delivered events — until the caller drops the stream; every other
taxonomy error (Unauthenticated, NamespaceDenied, NotFound,
InvalidArgument, Server, …) is terminal immediately.
Implementations§
Source§impl ResumingEventStream
impl ResumingEventStream
Sourcepub fn new(
transport: Arc<dyn WorkflowTransport>,
namespace: impl Into<String>,
target: SubscribeTarget,
) -> Self
pub fn new( transport: Arc<dyn WorkflowTransport>, namespace: impl Into<String>, target: SubscribeTarget, ) -> Self
Creates a subscription stream for target.
Sourcepub fn from_sequence(
transport: Arc<dyn WorkflowTransport>,
namespace: impl Into<String>,
workflow_id: WorkflowId,
resume_from: NonZeroU64,
) -> Self
pub fn from_sequence( transport: Arc<dyn WorkflowTransport>, namespace: impl Into<String>, workflow_id: WorkflowId, resume_from: NonZeroU64, ) -> Self
Creates a per-workflow subscription stream that attaches with an explicit starting cursor.
resume_from is the first per-workflow sequence number wanted
(resume_from_seq on the wire); 1 replays the full recorded
history before splicing into the live stream. The type makes the
invalid cursor 0 unrepresentable.
Trait Implementations§
Source§impl Stream for ResumingEventStream
impl Stream for ResumingEventStream
Auto Trait Implementations§
impl !RefUnwindSafe for ResumingEventStream
impl !Sync for ResumingEventStream
impl !UnwindSafe for ResumingEventStream
impl Freeze for ResumingEventStream
impl Send for ResumingEventStream
impl Unpin for ResumingEventStream
impl UnsafeUnpin for ResumingEventStream
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
T in a tonic::RequestSource§impl<T> IntoStreamingRequest for T
impl<T> IntoStreamingRequest for T
impl<T> Read<Exclusive, BecauseExclusive> for Twhere
T: ?Sized,
Source§impl<St> StreamExt for St
impl<St> StreamExt for St
Source§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 moreSource§fn try_next<T, E>(&mut self) -> TryNext<'_, Self>
fn try_next<T, E>(&mut self) -> TryNext<'_, Self>
Source§fn map<T, F>(self, f: F) -> Map<Self, F>
fn map<T, F>(self, f: F) -> Map<Self, F>
Source§fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>
fn map_while<T, F>(self, f: F) -> MapWhile<Self, F>
None. Read moreSource§fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>
fn then<F, Fut>(self, f: F) -> Then<Self, Fut, F>
Source§fn merge<U>(self, other: U) -> Merge<Self, U>
fn merge<U>(self, other: U) -> Merge<Self, U>
Source§fn filter<F>(self, f: F) -> Filter<Self, F>
fn filter<F>(self, f: F) -> Filter<Self, F>
Source§fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>
Source§fn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where
Self: Sized,
None. Read moreSource§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 moreSource§fn take_while<F>(self, f: F) -> TakeWhile<Self, F>
fn take_while<F>(self, f: F) -> TakeWhile<Self, F>
true. Read moreSource§fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
fn skip(self, n: usize) -> Skip<Self>where
Self: Sized,
n first items of the
underlying stream. Read moreSource§fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>
fn skip_while<F>(self, f: F) -> SkipWhile<Self, F>
true. Read moreSource§fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>
fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F>
Source§fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F>
fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F>
Source§fn chain<U>(self, other: U) -> Chain<Self, U>
fn chain<U>(self, other: U) -> Chain<Self, U>
Source§fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, B, F>
Source§impl<T> StreamExt for T
impl<T> StreamExt for T
Source§fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
Source§fn into_future(self) -> StreamFuture<Self>
fn into_future(self) -> StreamFuture<Self>
Source§fn map<T, F>(self, f: F) -> Map<Self, F>
fn map<T, F>(self, f: F) -> Map<Self, F>
Source§fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
fn enumerate(self) -> Enumerate<Self>where
Self: Sized,
Source§fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>
fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F>
Source§fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>
fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F>
Source§fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>
Source§fn collect<C>(self) -> Collect<Self, C>
fn collect<C>(self) -> Collect<Self, C>
Source§fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>
fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>
Source§fn concat(self) -> Concat<Self>
fn concat(self) -> Concat<Self>
Source§fn count(self) -> Count<Self>where
Self: Sized,
fn count(self) -> Count<Self>where
Self: Sized,
Source§fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>
fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>
Source§fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>
fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F>
true if any element in stream satisfied a predicate. Read moreSource§fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>
fn all<Fut, F>(self, f: F) -> All<Self, Fut, F>
true if all element in stream satisfied a predicate. Read moreSource§fn flatten(self) -> Flatten<Self>
fn flatten(self) -> Flatten<Self>
Source§fn flatten_unordered(
self,
limit: impl Into<Option<usize>>,
) -> FlattenUnorderedWithFlowController<Self, ()>
fn flatten_unordered( self, limit: impl Into<Option<usize>>, ) -> FlattenUnorderedWithFlowController<Self, ()>
Source§fn flat_map_unordered<U, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> FlatMapUnordered<Self, U, F>
fn flat_map_unordered<U, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> FlatMapUnordered<Self, U, F>
StreamExt::map but flattens nested Streams
and polls them concurrently, yielding items in any order, as they made
available. Read moreSource§fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>
fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F>
StreamExt::fold that holds internal state
and produces a new stream. Read moreSource§fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F>
true. Read moreSource§fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>
fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F>
true. Read moreSource§fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut>
Source§fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>
Source§fn for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> ForEachConcurrent<Self, Fut, F>
fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> ForEachConcurrent<Self, Fut, F>
Source§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 moreSource§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 moreSource§fn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
Source§fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a>>
fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a>>
Source§fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>where
Self: Sized + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>where
Self: Sized + 'a,
Source§fn buffered(self, n: usize) -> Buffered<Self>
fn buffered(self, n: usize) -> Buffered<Self>
Source§fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self>
Source§fn zip<St>(self, other: St) -> Zip<Self, St>
fn zip<St>(self, other: St) -> Zip<Self, St>
Source§fn peekable(self) -> Peekable<Self>where
Self: Sized,
fn peekable(self) -> Peekable<Self>where
Self: Sized,
peek method. Read moreSource§fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
fn chunks(self, capacity: usize) -> Chunks<Self>where
Self: Sized,
Source§fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where
Self: Sized,
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>where
Self: Sized,
Source§fn forward<S>(self, sink: S) -> Forward<Self, S>
fn forward<S>(self, sink: S) -> Forward<Self, S>
Source§fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)
Source§fn inspect<F>(self, f: F) -> Inspect<Self, F>
fn inspect<F>(self, f: F) -> Inspect<Self, F>
Source§fn left_stream<B>(self) -> Either<Self, B>
fn left_stream<B>(self) -> Either<Self, B>
Source§fn right_stream<B>(self) -> Either<B, Self>
fn right_stream<B>(self) -> Either<B, Self>
Source§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.Source§fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
Source§impl<S> TryStreamExt for S
impl<S> TryStreamExt for S
Source§fn err_into<E>(self) -> ErrInto<Self, E>
fn err_into<E>(self) -> ErrInto<Self, E>
Source§fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>
Source§fn map_err<E, F>(self, f: F) -> MapErr<Self, F>
fn map_err<E, F>(self, f: F) -> MapErr<Self, F>
Source§fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>
f. Read moreSource§fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>
f. Read moreSource§fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>
Source§fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>
Source§fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Source§fn try_next(&mut self) -> TryNext<'_, Self>where
Self: Unpin,
fn try_next(&mut self) -> TryNext<'_, Self>where
Self: Unpin,
Source§fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>
Source§fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>
fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F>
true. Read moreSource§fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>
fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F>
true. Read moreSource§fn try_for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F,
) -> TryForEachConcurrent<Self, Fut, F>
fn try_for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F, ) -> TryForEachConcurrent<Self, Fut, F>
Source§fn try_collect<C>(self) -> TryCollect<Self, C>
fn try_collect<C>(self) -> TryCollect<Self, C>
Source§fn try_chunks(self, capacity: usize) -> TryChunks<Self>where
Self: Sized,
fn try_chunks(self, capacity: usize) -> TryChunks<Self>where
Self: Sized,
Source§fn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>where
Self: Sized,
fn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>where
Self: Sized,
Source§fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F>
Source§fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F>
Source§fn try_flatten_unordered(
self,
limit: impl Into<Option<usize>>,
) -> TryFlattenUnordered<Self>
fn try_flatten_unordered( self, limit: impl Into<Option<usize>>, ) -> TryFlattenUnordered<Self>
Source§fn try_flatten(self) -> TryFlatten<Self>
fn try_flatten(self) -> TryFlatten<Self>
Source§fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>
fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>
Source§fn try_concat(self) -> TryConcat<Self>
fn try_concat(self) -> TryConcat<Self>
Source§fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self>
Source§fn try_buffered(self, n: usize) -> TryBuffered<Self>
fn try_buffered(self, n: usize) -> TryBuffered<Self>
Source§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.Source§fn into_async_read(self) -> IntoAsyncRead<Self>
fn into_async_read(self) -> IntoAsyncRead<Self>
AsyncBufRead. Read moreSource§fn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F>
fn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F>
Err is encountered or if an Ok item is found
that does not satisfy the predicate. Read more