Struct ParachainInherentData

pub struct ParachainInherentData {
    pub validation_data: PersistedValidationData,
    pub relay_chain_state: StorageProof,
    pub downward_messages: Vec<InboundDownwardMessage>,
    pub horizontal_messages: BTreeMap<Id, Vec<InboundHrmpMessage>>,
    pub relay_parent_descendants: Vec<Header<u32, BlakeTwo256>>,
    pub collator_peer_id: Option<BoundedVec<u8, ConstU32<64>>>,
}

The inherent data that is passed by the collator to the parachain runtime.

Fields

validation_data: PersistedValidationData

relay_chain_state: StorageProof

A storage proof of a predefined set of keys from the relay-chain.

Specifically this witness contains the data for:

• the current slot number at the given relay parent
• active host configuration as per the relay parent,
• the relay dispatch queue sizes
• the list of egress HRMP channels (in the list of recipients form)
• the metadata for the egress HRMP channels

downward_messages: Vec<InboundDownwardMessage>

Downward messages in the order they were sent.

horizontal_messages: BTreeMap<Id, Vec<InboundHrmpMessage>>

HRMP messages grouped by channels. The messages in the inner vec must be in order they were sent. In combination with the rule of no more than one message in a channel per block, this means sent_at is strictly greater than the previous one (if any).

relay_parent_descendants: Vec<Header<u32, BlakeTwo256>>

Contains the relay parent header and its descendants. This information is used to ensure that a parachain node builds blocks at a specified offset from the chain tip rather than directly at the tip.

collator_peer_id: Option<BoundedVec<u8, ConstU32<64>>>

Contains the collator peer ID, which is later sent by the parachain to the relay chain via a UMP signal to promote the reputation of the given peer ID.

Trait Implementations

impl Clone for ParachainInherentData

fn clone(&self) -> ParachainInherentData

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ParachainInherentData

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

Formats the value using the given formatter.

impl Decode for ParachainInherentData

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

where __CodecInputEdqy: Input,

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 ParachainInherentData

fn size_hint(&self) -> usize

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

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

where __CodecOutputEdqy: Output + ?Sized,

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 InherentDataProvider for ParachainInherentData

fn provide_inherent_data<'life0, 'life1, 'async_trait>( &'life0 self, inherent_data: &'life1 mut InherentData, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, ParachainInherentData: 'async_trait,

Provide inherent data that should be included in a block.

fn try_handle_error<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _: &'life1 [u8; 8], _: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Option<Result<(), Error>>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, ParachainInherentData: 'async_trait,

Convert the given encoded error to a string.

fn create_inherent_data<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<InherentData, Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Convenience function for creating [InherentData].

impl PartialEq for ParachainInherentData

fn eq(&self, other: &ParachainInherentData) -> 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 TypeInfo for ParachainInherentData

type Identity = ParachainInherentData

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl DecodeWithMemTracking for ParachainInherentData

impl EncodeLike for ParachainInherentData

impl StructuralPartialEq for ParachainInherentData