mysql_common::proto::codec

Enum ChunkDecoder

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pub enum ChunkDecoder {
    Idle,
    Chunk {
        seq_id: u8,
        needed: NonZeroUsize,
    },
}
Expand description

Decoder for MySql protocol chunk.

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Idle

Decoder is waiting for the first or subsequent packet chunk.

It’ll need at least 4 bytes to start decoding a chunk.

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Chunk

Chunk is being decoded.

Fields

§seq_id: u8

Sequence id of chunk being decoded.

§needed: NonZeroUsize

Number of bytes needed to finish this chunk.

Implementations§

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impl ChunkDecoder

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pub fn decode<T>( &mut self, src: &mut BytesMut, dst: &mut T, max_allowed_packet: usize, ) -> Result<Option<ChunkInfo>, PacketCodecError>
where T: AsRef<[u8]> + BufMut,

Will try to decode MySql packet chunk from src to dst.

If chunk is decoded, then ChunkInfo is returned.

If the dst buffer isn’t empty then it is expected that it contains previous chunks of the same packet, or this function may erroneously report PacketCodecError::PacketTooLarge error.

Trait Implementations§

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impl Clone for ChunkDecoder

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fn clone(&self) -> ChunkDecoder

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ChunkDecoder

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

Formats the value using the given formatter. Read more
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impl Default for ChunkDecoder

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fn default() -> ChunkDecoder

Returns the “default value” for a type. Read more
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impl PartialEq for ChunkDecoder

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fn eq(&self, other: &ChunkDecoder) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for ChunkDecoder

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impl Eq for ChunkDecoder

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impl StructuralPartialEq for ChunkDecoder

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Causes self to use its LowerHex implementation when Debug-formatted.
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Causes self to use its UpperExp implementation when Debug-formatted.
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Causes self to use its UpperHex implementation when Debug-formatted.
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