Struct tokio_util::codec::BytesCodec

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pub struct BytesCodec(_);

[−] Expand description

A simple Decoder and Encoder implementation that just ships bytes around.

Example

Turn an AsyncRead into a stream of Result<BytesMut, Error>.

use tokio::fs::File;
use tokio::io::AsyncRead;
use tokio_util::codec::{FramedRead, BytesCodec};

let my_async_read = File::open("filename.txt").await?;
let my_stream_of_bytes = FramedRead::new(my_async_read, BytesCodec::new());

Implementations

impl BytesCodec[−]

pub fn new() -> BytesCodec[−]

Creates a new BytesCodec for shipping around raw bytes.

Trait Implementations

impl Clone for BytesCodec[+]

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fn clone(&self) -> BytesCodec[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for BytesCodec

impl Debug for BytesCodec[+]

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

Formats the value using the given formatter.

impl Decoder for BytesCodec[+]

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type Item = BytesMut

The type of decoded frames.

type Error = Error

The type of unrecoverable frame decoding errors.

fn decode(&mut self, buf: &mut BytesMut) -> Result<Option<BytesMut>, Error>[−]

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

fn decode_eof(
    &mut self,
    buf: &mut BytesMut
) -> Result<Option<Self::Item>, Self::Error>[−]

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: AsyncRead + AsyncWrite + Sized>(self, io: T) -> Framed<T, Self> where
    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.

impl Default for BytesCodec[+]

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fn default() -> BytesCodec[−]

Returns the “default value” for a type.

impl Encoder<Bytes> for BytesCodec[+]

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type Error = Error

The type of encoding errors.

fn encode(&mut self, data: Bytes, buf: &mut BytesMut) -> Result<(), Error>[−]

Encodes a frame into the buffer provided.

impl Eq for BytesCodec

impl Hash for BytesCodec[+]

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fn hash<__H: Hasher>(&self, state: &mut __H)[−]

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, [−]

Feeds a slice of this type into the given Hasher.

impl Ord for BytesCodec[+]

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fn cmp(&self, other: &BytesCodec) -> Ordering[−]

This method returns an Ordering between self and other.

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#[must_use]pub fn max(self, other: Self) -> Self[−]

Compares and returns the maximum of two values.

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#[must_use]pub fn min(self, other: Self) -> Self[−]

Compares and returns the minimum of two values.

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#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self[−]

Restrict a value to a certain interval.

impl PartialEq<BytesCodec> for BytesCodec[+]

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fn eq(&self, other: &BytesCodec) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &BytesCodec) -> bool[−]

This method tests for !=.

impl PartialOrd<BytesCodec> for BytesCodec[+]

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fn partial_cmp(&self, other: &BytesCodec) -> Option<Ordering>[−]

This method returns an ordering between self and other values if one exists.

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#[must_use]pub fn lt(&self, other: &Rhs) -> bool[−]

This method tests less than (for self and other) and is used by the < operator.

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#[must_use]pub fn le(&self, other: &Rhs) -> bool[−]

This method tests less than or equal to (for self and other) and is used by the <= operator.

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#[must_use]pub fn gt(&self, other: &Rhs) -> bool[−]

This method tests greater than (for self and other) and is used by the > operator.

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#[must_use]pub fn ge(&self, other: &Rhs) -> bool[−]

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for BytesCodec

impl StructuralPartialEq for BytesCodec