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Cleanup DB handling a bit in key-gen/attempt-manager

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This commit is contained in:
Luke Parker
2024-08-19 00:41:18 -04:00
parent 1e8a9ec5bd
commit 2f3bd7a02a
6 changed files with 77 additions and 27 deletions
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31
processor/frost-attempt-manager/src/lib.rs
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@@ -8,6 +8,7 @@ use frost::{Participant, sign::PreprocessMachine};
use serai_validator_sets_primitives::Session;
use serai_db::Db;
use messages::sign::{ProcessorMessage, CoordinatorMessage};
mod individual;
@@ -22,21 +23,28 @@ pub enum Response<M: PreprocessMachine> {
}
/// A manager of attempts for a variety of signing protocols.
pub struct AttemptManager<M: Clone + PreprocessMachine> {
pub struct AttemptManager<D: Db, M: Clone + PreprocessMachine> {
db: D,
session: Session,
start_i: Participant,
active: HashMap<[u8; 32], SigningProtocol<M>>,
active: HashMap<[u8; 32], SigningProtocol<D, M>>,
}
impl<M: Clone + PreprocessMachine> AttemptManager<M> {
impl<D: Db, M: Clone + PreprocessMachine> AttemptManager<D, M> {
/// Create a new attempt manager.
pub fn new(session: Session, start_i: Participant) -> Self {
AttemptManager { session, start_i, active: HashMap::new() }
pub fn new(db: D, session: Session, start_i: Participant) -> Self {
AttemptManager { db, session, start_i, active: HashMap::new() }
}
/// Register a signing protocol to attempt.
pub fn register(&mut self, id: [u8; 32], machines: Vec<M>) {
self.active.insert(id, SigningProtocol::new(self.session, self.start_i, id, machines));
///
/// This ID must be unique across all sessions, attempt managers, protocols, etc.
pub fn register(&mut self, id: [u8; 32], machines: Vec<M>) -> Vec<ProcessorMessage> {
let mut protocol =
SigningProtocol::new(self.db.clone(), self.session, self.start_i, id, machines);
let messages = protocol.attempt(0);
self.active.insert(id, protocol);
messages
}
/// Retire a signing protocol.
@@ -45,10 +53,13 @@ impl<M: Clone + PreprocessMachine> AttemptManager<M> {
/// This does not stop the protocol from being re-registered and further worked on (with
/// undefined behavior) then. The higher-level context must never call `register` again with this
/// ID.
// TODO: Also have the DB for this SigningProtocol cleaned up here.
pub fn retire(&mut self, id: [u8; 32]) {
log::info!("retiring signing protocol {}", hex::encode(id));
self.active.remove(&id);
if self.active.remove(&id).is_none() {
log::info!("retiring protocol {}, which we didn't register/already retired", hex::encode(id));
} else {
log::info!("retired signing protocol {}", hex::encode(id));
}
SigningProtocol::<D, M>::cleanup(&mut self.db, id);
}
/// Handle a message for a signing protocol.