Struct AdvertiseSegment 

pub struct AdvertiseSegment {
    pub scheduling_parent: Hash,
    pub para_id: Id,
    pub candidates_descriptor_version: CandidateDescriptorVersion,
    pub candidates: BoundedVec<CandidateFingerprint, ConstU32<MAX_SEGMENT_LEN>>,
}

Advertise an ordered list of unincluded candidates. The list is ordered by age. A length 1 segment is the V3 single-candidate equivalent.

This is the only message on the V4 collation peer-set, so it is a struct rather than a single-variant enum: there is nothing to discriminate, and a tag byte would carry no information. If V4 ever gains a second message, this becomes an enum again and the match sites below regain their inner pattern.

V4 has no Declare message. Although every AdvertiseSegment carries a para_id, the peer is bound to a single para by its first advertisement. Sending a different para_id in a subsequent message results in disconnection.

Fields

scheduling_parent: Hash

Hash of the scheduling parent

para_id: Id

The para this segment collates for.

candidates_descriptor_version: CandidateDescriptorVersion

Descriptor version for the candidate.

candidates: BoundedVec<CandidateFingerprint, ConstU32<MAX_SEGMENT_LEN>>

Candidates ordered by age; the list may have gaps.

Trait Implementations

impl Clone for AdvertiseSegment

fn clone(&self) -> AdvertiseSegment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AdvertiseSegment

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

Formats the value using the given formatter.

impl Decode for AdvertiseSegment

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

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

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 AdvertiseSegment

fn size_hint(&self) -> usize

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

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

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

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

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where 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<AdvertiseSegment> for VersionedCollationProtocol

fn from(v4: CollationProtocol) -> Self

Converts to this type from the input type.

impl PartialEq for AdvertiseSegment

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl EncodeLike for AdvertiseSegment

impl Eq for AdvertiseSegment

impl StructuralPartialEq for AdvertiseSegment