pub struct LineLimited<R> { /* private fields */ }Expand description
AsyncRead adapter enforcing a per-line byte limit. The current line
is accumulated into a buffer of exactly limit + 1 bytes BEFORE any
of it is emitted, so an oversized line is discarded WHOLE — including
its in-limit prefix, which must never reach the JSON codec (a
parseable prefix of an oversized line would otherwise execute). Memory
is bounded by the fixed limit-sized buffer no matter how long the
incoming line is; the excess beyond the buffer streams past through a
small scratch window and is dropped.
A line of exactly limit bytes passes with its terminator (the
buffer holds limit + 1 to observe the byte after the limit).
Implementations§
Source§impl<R: AsyncRead> LineLimited<R>
impl<R: AsyncRead> LineLimited<R>
pub fn new(inner: R) -> Self
pub fn with_limit(inner: R, limit: usize) -> Self
Trait Implementations§
Auto Trait Implementations§
impl<R> Freeze for LineLimited<R>where
R: Freeze,
impl<R> RefUnwindSafe for LineLimited<R>where
R: RefUnwindSafe,
impl<R> Send for LineLimited<R>where
R: Send,
impl<R> Sync for LineLimited<R>where
R: Sync,
impl<R> Unpin for LineLimited<R>where
R: Unpin,
impl<R> UnsafeUnpin for LineLimited<R>where
R: UnsafeUnpin,
impl<R> UnwindSafe for LineLimited<R>where
R: UnwindSafe,
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Source§impl<R> AsyncReadExt for R
impl<R> AsyncReadExt for R
Source§fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>where
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fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>where
Self: Unpin,
Pulls some bytes from this source into the specified buffer,
returning how many bytes were read. Read more
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fn read_buf<'a, B>(&'a mut self, buf: &'a mut B) -> ReadBuf<'a, Self, B>
Pulls some bytes from this source into the specified buffer,
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Reads an unsigned 8 bit integer from the underlying reader. Read more
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