Struct ProtobufLenPrefixCodec 

pub struct ProtobufLenPrefixCodec<T> { /* private fields */ }

Available on crate feature protobuf only.

A Decoder that yields one message per length-prefixed frame.

Implementations

impl<T> ProtobufLenPrefixCodec<T>

pub fn new_with_max_length(max_length: usize) -> Self

A codec that rejects any single message longer than max_length bytes.

Trait Implementations

impl<T: Clone> Clone for ProtobufLenPrefixCodec<T>

fn clone(&self) -> ProtobufLenPrefixCodec<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for ProtobufLenPrefixCodec<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Decoder for ProtobufLenPrefixCodec<T>

where T: Message + Default,

type Item = Result<T, StreamError>

Always Ok(_): a message that fails to decode is reported as terminal, matching the behaviour this codec has always had.

type Error = StreamError

The type of unrecoverable frame decoding errors.

fn decode( &mut self, buf: &mut BytesMut, ) -> Result<Option<Self::Item>, StreamError>

Attempts to decode a frame from the provided buffer of bytes.

fn decode_eof( &mut self, buf: &mut BytesMut, ) -> Result<Option<Self::Item>, StreamError>

A default method available to be called when there are no more bytes available to be read from the underlying I/O.

fn framed<T>(self, io: T) -> Framed<T, Self>

where T: AsyncRead + AsyncWrite, Self: Sized,

Provides a Stream and Sink interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data.