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Have serai-cosign index finalized blocks' numbers

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This commit is contained in:
Luke Parker
2025-01-09 06:57:26 -05:00
parent 893a24a1cc
commit 9b0b5fd1e2
2 changed files with 18 additions and 8 deletions
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16
coordinator/cosign/src/lib.rs
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@@ -127,7 +127,8 @@ create_db! {
// The following are populated by the intend task and used throughout the library
// An index of Substrate blocks
SubstrateBlocks: (block_number: u64) -> [u8; 32],
SubstrateBlockHash: (block_number: u64) -> [u8; 32],
SubstrateBlockNumber: (block_hash: [u8; 32]) -> u64,
// A mapping from a global session's ID to its relevant information.
GlobalSessions: (global_session: [u8; 32]) -> GlobalSession,
// The last block to be cosigned by a global session.
@@ -270,17 +271,24 @@ impl<D: Db> Cosigning<D> {
Ok(LatestCosignedBlockNumber::get(getter).unwrap_or(0))
}
/// Fetch an cosigned Substrate block by its block number.
/// Fetch a cosigned Substrate block's hash by its block number.
pub fn cosigned_block(getter: &impl Get, block_number: u64) -> Result<Option<[u8; 32]>, Faulted> {
if block_number > Self::latest_cosigned_block_number(getter)? {
return Ok(None);
}
Ok(Some(
SubstrateBlocks::get(getter, block_number).expect("cosigned block but didn't index it"),
SubstrateBlockHash::get(getter, block_number).expect("cosigned block but didn't index it"),
))
}
/// Fetch a finalized block's number by its hash.
///
/// This block is not guaranteed to be cosigned.
pub fn finalized_block_number(getter: &impl Get, block_hash: [u8; 32]) -> Option<u64> {
SubstrateBlockNumber::get(getter, block_hash)
}
/// Fetch the notable cosigns for a global session in order to respond to requests.
///
/// If this global session hasn't produced any notable cosigns, this will return the latest
@@ -345,7 +353,7 @@ impl<D: Db> Cosigning<D> {
let network = cosign.cosigner;
// Check our indexed blockchain includes a block with this block number
let Some(our_block_hash) = SubstrateBlocks::get(&self.db, cosign.block_number) else {
let Some(our_block_hash) = SubstrateBlockHash::get(&self.db, cosign.block_number) else {
return Ok(true);
};
let faulty = cosign.block_hash != our_block_hash;