Struct SchedulingProof 

pub struct SchedulingProof {
    pub header_chain: Vec<Header>,
    pub internal_scheduling_parent_header: Header,
    pub signed_scheduling_info: Option<SignedSchedulingInfo>,
}

V3 scheduling proof included in the POV.

Provides the ancestry from scheduling_parent back to the internal scheduling parent. The PVF validates this against the relay_parent and scheduling_parent from the candidate descriptor extension.

Fields

header_chain: Vec<Header>

Relay chain headers proving ancestry from scheduling_parent backward.

Forms a chain where each header’s parent_hash equals the next header’s hash. The first header’s hash must equal the candidate’s scheduling_parent. The last header’s parent_hash is the internal scheduling parent. Length is defined by the parachain runtime config (RelayParentOffset).

internal_scheduling_parent_header: Header

The relay chain header at internal_scheduling_parent. Its hash must equal the internal_scheduling_parent derived from header_chain (the parent of the chain’s last header, or scheduling_parent if the chain is empty).

signed_scheduling_info: Option<SignedSchedulingInfo>

Signed scheduling info for core selection override.

• None with relay_parent == internal_scheduling_parent: Initial submission. Core selection comes from the parachain block’s UMP signals.

• Some with relay_parent == internal_scheduling_parent: Initial submission with explicit core selection. This is optional but legal. Collators should refuse to acknowledge blocks with invalid scheduling info, so providing a signature is not required for initial submissions.

• Some with relay_parent != internal_scheduling_parent: Resubmission (required). The resubmitting collator signs the core selection, overriding the block’s UMP signals. Signature is verified against the eligible author for the slot at internal_scheduling_parent.

Implementations

impl SchedulingProof

pub fn scheduling_parent(&self) -> Hash

Derive the scheduling parent hash.

Returns the hash of the first/newest header in header_chain if non-empty, otherwise falls back to internal_scheduling_parent_header.hash() (the ISP coincides with the scheduling parent when the parachain runs with relay_parent_offset = 0).

Trait Implementations

impl Clone for SchedulingProof

fn clone(&self) -> SchedulingProof

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchedulingProof

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

Formats the value using the given formatter.

impl Decode for SchedulingProof

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 SchedulingProof

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 PartialEq for SchedulingProof

fn eq(&self, other: &SchedulingProof) -> 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 SchedulingProof

impl Eq for SchedulingProof

impl StructuralPartialEq for SchedulingProof