Struct polkadot_node_network_protocol::request_response::v1::ChunkResponse

pub struct ChunkResponse {
    pub chunk: Vec<u8>,
    pub proof: Proof,
}

Skimmed down variant of ErasureChunk.

Instead of transmitting a full ErasureChunk we transmit ChunkResponse in ChunkFetchingResponse, which omits the chunk’s index. The index is already known by the requester and by not transmitting it, we ensure the requester is going to use his index value for validating the response, thus making sure he got what he requested.

Fields

chunk: Vec<u8>

The erasure-encoded chunk of data belonging to the candidate block.

proof: Proof

Proof for this chunk’s branch in the Merkle tree.

Implementations

impl ChunkResponse

pub fn recombine_into_chunk(self, req: &ChunkFetchingRequest) -> ErasureChunk

Re-build an ErasureChunk from response and request.

Trait Implementations

impl Clone for ChunkResponse

fn clone(&self) -> ChunkResponse

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ChunkResponse

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

Formats the value using the given formatter.

impl Decode for ChunkResponse

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn skip<I>(input: &mut I) -> Result<(), Error>where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for ChunkResponse

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )

Convert self to a slice and append it to the destination.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> Rwhere F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl From<ErasureChunk> for ChunkResponse

fn from(_: ErasureChunk) -> Self

Converts to this type from the input type.

impl EncodeLike<ChunkResponse> for ChunkResponse