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Implement Substrate Pallet Runtime APIs (#389)

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* Implement public helpers for querying header info

* Update `best_header` when importing headers

* Add BestHeader to GenesisConfig

* Define extra types for Millau primitives

* Start implementing runtime APIs in Millau runtime

* Add helper for getting headers which require a justification

* Add runtime API for getting headers requiring a justification

* Reword `expect()` proof for valid authority sets

* Fix typo

* Clean up Hasher comment

* Add the Call Dispatch Pallet back to the Millau runtime

* Use types from Rialto in bridge pallet config

* Use the Rialto runtime APIS in the Millau runtime

* Include Millau bridge instance in Rialto runtime

* Add missing doc comment

* Use one storage function for setting and clearing `RequiresJustification`

* Remove TODO comments
This commit is contained in:
Hernando Castano
2020-10-06 15:53:25 -04:00
committed by Bastian Köcher
parent cfe1e43473
commit 86834e2fd6
10 changed files with 239 additions and 32 deletions
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bridges/primitives/millau/src/lib.rs
+15 -2
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@@ -20,13 +20,21 @@
// Runtime-generated DecodeLimit::decode_all_With_depth_limit
#![allow(clippy::unnecessary_mut_passed)]
use sp_core::Hasher as HasherT;
use sp_runtime::traits::BlakeTwo256;
use sp_std::prelude::*;
/// Block number type used in Millau.
pub type BlockNumber = u32;
/// Hash type used in Millau.
pub type Hash = sp_core::H256;
pub type Hash = <BlakeTwo256 as HasherT>::Out;
/// The type of an object that can produce hashes on Millau.
pub type Hasher = BlakeTwo256;
/// The header type used by Millau.
pub type Header = sp_runtime::generic::Header<BlockNumber, Hasher>;
sp_api::decl_runtime_apis! {
/// API for querying information about Millau headers from the Bridge Pallet instance.
@@ -42,8 +50,13 @@ sp_api::decl_runtime_apis! {
/// Returns number and hash of the best finalized block known to the bridge module.
fn finalized_block() -> (BlockNumber, Hash);
/// Returns numbers and hashes of headers that require finality proofs.
///
/// An empty response means that there are no headers which currently require a
/// finality proof.
fn incomplete_headers() -> Vec<(BlockNumber, Hash)>;
/// Returns true if header is known to the runtime.
/// Returns true if the header is known to the runtime.
fn is_known_block(hash: Hash) -> bool;
/// Returns true if the header is considered finalized by the runtime.
fn is_finalized_block(hash: Hash) -> bool;
}
}