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Use a single Substrate signer, per intentions in #227

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Removes key from Update as well, since it's no longer variable.
This commit is contained in:
Luke Parker
2023-08-24 20:30:50 -04:00
parent b91bd44476
commit bccdabb53d
8 changed files with 33 additions and 47 deletions
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49
processor/src/main.rs
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@@ -157,8 +157,8 @@ struct TributaryMutable<N: Network, D: Db> {
// Substrate may mark tasks as completed, invalidating any existing mutable borrows.
// The safety of this follows as written above.
// TODO: There should only be one SubstrateSigner at a time (see #277)
substrate_signers: HashMap<[u8; 32], SubstrateSigner<D>>,
// There should only be one SubstrateSigner at a time (see #277)
substrate_signer: Option<SubstrateSigner<D>>,
}
// Items which are mutably borrowed by Substrate.
@@ -308,7 +308,9 @@ async fn handle_coordinator_msg<D: Db, N: Network, Co: Coordinator>(
}
CoordinatorMessage::Coordinator(msg) => {
tributary_mutable.substrate_signers.get_mut(msg.key()).unwrap().handle(txn, msg).await;
if let Some(substrate_signer) = tributary_mutable.substrate_signer.as_mut() {
substrate_signer.handle(txn, msg).await;
}
}
CoordinatorMessage::Substrate(msg) => {
@@ -317,7 +319,7 @@ async fn handle_coordinator_msg<D: Db, N: Network, Co: Coordinator>(
// This is the first key pair for this network so no block has been finalized yet
let activation_number = if context.network_latest_finalized_block.0 == [0; 32] {
assert!(tributary_mutable.signers.is_empty());
assert!(tributary_mutable.substrate_signers.is_empty());
assert!(tributary_mutable.substrate_signer.is_none());
assert!(substrate_mutable.schedulers.is_empty());
// Wait until a network's block's time exceeds Serai's time
@@ -373,10 +375,9 @@ async fn handle_coordinator_msg<D: Db, N: Network, Co: Coordinator>(
// See TributaryMutable's struct definition for why this block is safe
let KeyConfirmed { substrate_keys, network_keys } =
tributary_mutable.key_gen.confirm(txn, set, key_pair).await;
tributary_mutable.substrate_signers.insert(
substrate_keys.group_key().to_bytes(),
SubstrateSigner::new(N::NETWORK, substrate_keys),
);
// TODO2: Don't immediately set this, set it once it's active
tributary_mutable.substrate_signer =
Some(SubstrateSigner::new(N::NETWORK, substrate_keys));
let key = network_keys.group_key();
@@ -408,9 +409,9 @@ async fn handle_coordinator_msg<D: Db, N: Network, Co: Coordinator>(
// We now have to acknowledge every block for this key up to the acknowledged block
let outputs = substrate_mutable.scanner.ack_up_to_block(txn, key, block_id).await;
// Since this block was acknowledged, we no longer have to sign the batch for it
for batch_id in batches {
for (_, signer) in tributary_mutable.substrate_signers.iter_mut() {
signer.batch_signed(txn, batch_id);
if let Some(substrate_signer) = tributary_mutable.substrate_signer.as_mut() {
for batch_id in batches {
substrate_signer.batch_signed(txn, batch_id);
}
}
@@ -506,7 +507,7 @@ async fn boot<N: Network, D: Db>(
let (mut scanner, active_keys) = Scanner::new(network.clone(), raw_db.clone());
let mut schedulers = HashMap::<Vec<u8>, Scheduler<N>>::new();
let mut substrate_signers = HashMap::new();
let mut substrate_signer = None;
let mut signers = HashMap::new();
let main_db = MainDb::new(raw_db.clone());
@@ -516,11 +517,10 @@ async fn boot<N: Network, D: Db>(
let (substrate_keys, network_keys) = key_gen.keys(key);
let substrate_key = substrate_keys.group_key();
let substrate_signer = SubstrateSigner::new(N::NETWORK, substrate_keys);
// We don't have to load any state for this since the Scanner will re-fire any events
// necessary
substrate_signers.insert(substrate_key.to_bytes(), substrate_signer);
// TODO2: This uses most recent as signer, use the active one
substrate_signer = Some(SubstrateSigner::new(N::NETWORK, substrate_keys));
let mut signer = Signer::new(network.clone(), network_keys);
@@ -554,7 +554,7 @@ async fn boot<N: Network, D: Db>(
(
main_db,
TributaryMutable { key_gen, substrate_signers, signers },
TributaryMutable { key_gen, substrate_signer, signers },
SubstrateMutable { scanner, schedulers },
)
}
@@ -603,7 +603,7 @@ async fn run<N: Network, D: Db, Co: Coordinator>(mut raw_db: D, network: N, mut
}
}
for (key, signer) in tributary_mutable.substrate_signers.iter_mut() {
if let Some(signer) = tributary_mutable.substrate_signer.as_mut() {
while let Some(msg) = signer.events.pop_front() {
match msg {
SubstrateSignerEvent::ProcessorMessage(msg) => {
@@ -612,7 +612,6 @@ async fn run<N: Network, D: Db, Co: Coordinator>(mut raw_db: D, network: N, mut
SubstrateSignerEvent::SignedBatch(batch) => {
coordinator
.send(ProcessorMessage::Substrate(messages::substrate::ProcessorMessage::Update {
key: *key,
batch,
}))
.await;
@@ -665,7 +664,7 @@ async fn run<N: Network, D: Db, Co: Coordinator>(mut raw_db: D, network: N, mut
let mut txn = raw_db.txn();
match msg.unwrap() {
ScannerEvent::Block { key, block, outputs } => {
ScannerEvent::Block { block, outputs } => {
let mut block_hash = [0; 32];
block_hash.copy_from_slice(block.as_ref());
// TODO: Move this out from Scanner now that the Scanner no longer handles batches
@@ -735,13 +734,11 @@ async fn run<N: Network, D: Db, Co: Coordinator>(mut raw_db: D, network: N, mut
for batch in batches {
info!("created batch {} ({} instructions)", batch.id, batch.instructions.len());
// TODO: Don't reload both sets of keys in full just to get the Substrate public key
tributary_mutable
.substrate_signers
.get_mut(tributary_mutable.key_gen.keys(&key).0.group_key().to_bytes().as_slice())
.unwrap()
.sign(&mut txn, batch)
.await;
if let Some(substrate_signer) = tributary_mutable.substrate_signer.as_mut() {
substrate_signer
.sign(&mut txn, batch)
.await;
}
}
},