Struct PgCodec 

pub struct PgCodec<D> { /* private fields */ }

A PostgreSQL codec which cannot confuse frontend and backend tag alphabets.

Implementations

impl<D> PgCodec<D>

pub fn with_max_frame_len(max_frame_len: usize) -> Result<Self>

Creates a codec with a total tagged-frame limit, including tag and length.

Errors

Rejects limits smaller than an empty frame or larger than PostgreSQL’s signed int32 length field can represent.

Trait Implementations

impl<D: Debug> Debug for PgCodec<D>

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

Formats the value using the given formatter.

impl<D: Direction> Decoder for PgCodec<D>

type Item = <D as Direction>::Message

The type of decoded frames.

type Error = Error

The type of unrecoverable frame decoding errors.

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

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>(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.

impl<D> Default for PgCodec<D>

fn default() -> Self

Returns the “default value” for a type.

impl<D> Encoder<Frame> for PgCodec<D>

type Error = Error

The type of encoding errors.

fn encode(&mut self, item: Frame, destination: &mut BytesMut) -> Result<()>

Encodes a frame into the buffer provided.