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Chain specific message lane apis (#503)

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* replace generic message lane APIs with chain-specific

* moved SubstrateHeadersSyncPipeline to headers_pipeline.rs

* substrate-specific message lane trait

* Update relays/substrate/src/messages_lane.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
This commit is contained in:
Svyatoslav Nikolsky
2020-11-23 10:55:47 +03:00
committed by Bastian Köcher
parent d2ab81340a
commit 53791a1d4a
16 changed files with 309 additions and 231 deletions
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bridges/primitives/millau/src/lib.rs
+44 -1
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@@ -22,7 +22,7 @@
mod millau_hash;
use bp_message_lane::MessageNonce;
use bp_message_lane::{LaneId, MessageNonce};
use bp_runtime::Chain;
use frame_support::{weights::Weight, RuntimeDebug};
use sp_core::Hasher as HasherT;
@@ -111,6 +111,18 @@ pub const IS_KNOWN_MILLAU_BLOCK_METHOD: &str = "MillauHeaderApi_is_known_block";
/// Name of the `MillauHeaderApi::incomplete_headers` runtime method.
pub const INCOMPLETE_MILLAU_HEADERS_METHOD: &str = "MillauHeaderApi_incomplete_headers";
/// Name of the `ToMillauOutboundLaneApi::messages_dispatch_weight` runtime method.
pub const TO_MILLAU_MESSAGES_DISPATCH_WEIGHT_METHOD: &str = "ToMillauOutboundLaneApi_messages_dispatch_weight";
/// Name of the `ToMillauOutboundLaneApi::latest_received_nonce` runtime method.
pub const TO_MILLAU_LATEST_RECEIVED_NONCE_METHOD: &str = "ToMillauOutboundLaneApi_latest_received_nonce";
/// Name of the `ToMillauOutboundLaneApi::latest_generated_nonce` runtime method.
pub const TO_MILLAU_LATEST_GENERATED_NONCE_METHOD: &str = "ToMillauOutboundLaneApi_latest_generated_nonce";
/// Name of the `FromMillauInboundLaneApi::latest_received_nonce` runtime method.
pub const FROM_MILLAU_LATEST_RECEIVED_NONCE_METHOD: &str = "FromMillauInboundLaneApi_latest_received_nonce";
/// Name of the `FromMillauInboundLaneApi::latest_onfirmed_nonce` runtime method.
pub const FROM_MILLAU_LATEST_CONFIRMED_NONCE_METHOD: &str = "FromMillauInboundLaneApi_latest_confirmed_nonce";
/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.
pub type Signature = MultiSignature;
@@ -149,4 +161,35 @@ sp_api::decl_runtime_apis! {
/// Returns true if the header is considered finalized by the runtime.
fn is_finalized_block(hash: Hash) -> bool;
}
/// Outbound message lane API for messages that are sent to Millau chain.
///
/// This API is implemented by runtimes that are sending messages to Millau chain, not the
/// Millau runtime itself.
pub trait ToMillauOutboundLaneApi {
/// Returns dispatch weight of all messages in given inclusive range.
///
/// If some (or all) messages are missing from the storage, they'll also will
/// be missing from the resulting vector. The vector is ordered by the nonce.
fn messages_dispatch_weight(
lane: LaneId,
begin: MessageNonce,
end: MessageNonce,
) -> Vec<(MessageNonce, Weight)>;
/// Returns nonce of the latest message, received by bridged chain.
fn latest_received_nonce(lane: LaneId) -> MessageNonce;
/// Returns nonce of the latest message, generated by given lane.
fn latest_generated_nonce(lane: LaneId) -> MessageNonce;
}
/// Inbound message lane API for messages sent by Millau chain.
///
/// This API is implemented by runtimes that are receiving messages from Millau chain, not the
/// Millau runtime itself.
pub trait FromMillauInboundLaneApi {
/// Returns nonce of the latest message, received by given lane.
fn latest_received_nonce(lane: LaneId) -> MessageNonce;
/// Nonce of latest message that has been confirmed to the bridged chain.
fn latest_confirmed_nonce(lane: LaneId) -> MessageNonce;
}
}