Struct holochain::prelude::dependencies::kitsune_p2p_types::dependencies::lair_keystore_api::dependencies::tokio::io::Lines
source · pub struct Lines<R> { /* private fields */ }
Expand description
Reads lines from an AsyncBufRead
.
A Lines
can be turned into a Stream
with LinesStream
.
This type is usually created using the lines
method.
Implementations§
source§impl<R> Lines<R>where
R: AsyncBufRead + Unpin,
impl<R> Lines<R>where
R: AsyncBufRead + Unpin,
source§impl<R> Lines<R>where
R: AsyncBufRead,
impl<R> Lines<R>where
R: AsyncBufRead,
sourcepub fn poll_next_line(
self: Pin<&mut Lines<R>>,
cx: &mut Context<'_>
) -> Poll<Result<Option<String>, Error>>
pub fn poll_next_line( self: Pin<&mut Lines<R>>, cx: &mut Context<'_> ) -> Poll<Result<Option<String>, Error>>
Polls for the next line in the stream.
This method returns:
Poll::Pending
if the next line is not yet available.Poll::Ready(Ok(Some(line)))
if the next line is available.Poll::Ready(Ok(None))
if there are no more lines in this stream.Poll::Ready(Err(err))
if an IO error occurred while reading the next line.
When the method returns Poll::Pending
, the Waker
in the provided
Context
is scheduled to receive a wakeup when more bytes become
available on the underlying IO resource. Note that on multiple calls to
poll_next_line
, only the Waker
from the Context
passed to the most
recent call is scheduled to receive a wakeup.
Trait Implementations§
impl<'__pin, R> Unpin for Lines<R>where
__Origin<'__pin, R>: Unpin,
Auto Trait Implementations§
impl<R> RefUnwindSafe for Lines<R>where
R: RefUnwindSafe,
impl<R> Send for Lines<R>where
R: Send,
impl<R> Sync for Lines<R>where
R: Sync,
impl<R> UnwindSafe for Lines<R>where
R: UnwindSafe,
Blanket Implementations§
source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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
Mutably borrows from an owned value. Read more
source§impl<F, W, T, D> Deserialize<With<T, W>, D> for F
impl<F, W, T, D> Deserialize<With<T, W>, D> for F
source§impl<T> FutureExt for T
impl<T> FutureExt for T
source§fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ
fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ
source§fn with_current_context(self) -> WithContext<Self> ⓘ
fn with_current_context(self) -> WithContext<Self> ⓘ
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> ⓘ
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fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<T> Instrument for T
impl<T> Instrument for T
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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
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fn in_current_span(self) -> Instrumented<Self> ⓘ
source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Gets the layout of the type.
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self
from the equivalent element of its
superset. Read moresource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self
is actually part of its subset T
(and can be converted to it).source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset
but without any property checks. Always succeeds.source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self
to the equivalent element of its superset.source§impl<T> Upcastable for T
impl<T> Upcastable for T
source§fn upcast_any_ref(&self) -> &(dyn Any + 'static)
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upcast ref
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fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
upcast mut ref