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Add helper to intake Eventualities

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This commit is contained in:
Luke Parker 2024-08-29 14:57:43 -04:00
parent 9f4b28e5ae
commit 920303e1b4
2 changed files with 40 additions and 41 deletions
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64
processor/scanner/src/eventuality/mod.rs
View file

@ -1,3 +1,5 @@
use std::collections::HashMap;
use group::GroupEncoding;
use serai_db::{Get, DbTxn, Db};
@ -10,7 +12,7 @@ use crate::{
OutputWithInInstruction, ReceiverScanData, ScannerGlobalDb, SubstrateToEventualityDb,
ScanToEventualityDb,
},
BlockExt, ScannerFeed, KeyFor, SchedulerUpdate, Scheduler, sort_outputs,
BlockExt, ScannerFeed, KeyFor, EventualityFor, SchedulerUpdate, Scheduler, sort_outputs,
scan::{next_to_scan_for_outputs_block, queue_output_until_block},
};
@ -28,6 +30,29 @@ pub(crate) fn latest_scannable_block<S: ScannerFeed>(getter: &impl Get) -> Optio
.map(|b| b + S::WINDOW_LENGTH - 1)
}
/// Intake a set of Eventualities into the DB.
///
/// The HashMap is keyed by the key these Eventualities are for.
fn intake_eventualities<S: ScannerFeed>(
txn: &mut impl DbTxn,
to_intake: HashMap<Vec<u8>, Vec<EventualityFor<S>>>,
) {
for (key, new_eventualities) in to_intake {
let key = {
let mut key_repr = <KeyFor<S> as GroupEncoding>::Repr::default();
assert_eq!(key.len(), key_repr.as_ref().len());
key_repr.as_mut().copy_from_slice(&key);
KeyFor::<S>::from_bytes(&key_repr).unwrap()
};
let mut eventualities = EventualityDb::<S>::eventualities(txn, key);
for new_eventuality in new_eventualities {
eventualities.insert(new_eventuality);
}
EventualityDb::<S>::set_eventualities(txn, key, &eventualities);
}
}
/*
When we scan a block, we receive outputs. When this block is acknowledged, we accumulate those
outputs into some scheduler, potentially causing certain transactions to begin their signing
@ -106,22 +131,7 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> EventualityTask<D, S, Sch> {
intaked_any = true;
let new_eventualities = self.scheduler.fulfill(&mut txn, burns);
// TODO: De-duplicate this with below instance via a helper function
for (key, new_eventualities) in new_eventualities {
let key = {
let mut key_repr = <KeyFor<S> as GroupEncoding>::Repr::default();
assert_eq!(key.len(), key_repr.as_ref().len());
key_repr.as_mut().copy_from_slice(&key);
KeyFor::<S>::from_bytes(&key_repr).unwrap()
};
let mut eventualities = EventualityDb::<S>::eventualities(&txn, key);
for new_eventuality in new_eventualities {
eventualities.insert(new_eventuality);
}
EventualityDb::<S>::set_eventualities(&mut txn, key, &eventualities);
}
intake_eventualities::<S>(&mut txn, new_eventualities);
}
txn.commit();
}
@ -310,30 +320,20 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
}
// Update the scheduler
{
let mut scheduler_update = SchedulerUpdate { outputs, forwards, returns };
scheduler_update.outputs.sort_by(sort_outputs);
scheduler_update.forwards.sort_by(sort_outputs);
scheduler_update.returns.sort_by(|a, b| sort_outputs(&a.output, &b.output));
// Intake the new Eventualities
let new_eventualities = self.scheduler.update(&mut txn, scheduler_update);
for (key, new_eventualities) in new_eventualities {
let key = {
let mut key_repr = <KeyFor<S> as GroupEncoding>::Repr::default();
assert_eq!(key.len(), key_repr.as_ref().len());
key_repr.as_mut().copy_from_slice(&key);
KeyFor::<S>::from_bytes(&key_repr).unwrap()
};
for key in new_eventualities.keys() {
keys
.iter()
.find(|serai_key| serai_key.key == key)
.expect("queueing eventuality for key which isn't active");
let mut eventualities = EventualityDb::<S>::eventualities(&txn, key);
for new_eventuality in new_eventualities {
eventualities.insert(new_eventuality);
.find(|serai_key| serai_key.key.to_bytes().as_ref() == key.as_slice())
.expect("intaking Eventuality for key which isn't active");
}
EventualityDb::<S>::set_eventualities(&mut txn, key, &eventualities);
intake_eventualities::<S>(&mut txn, new_eventualities);
}
// Now that we've intaked any Eventualities caused, check if we're retiring any keys

1
processor/scanner/src/lib.rs
View file

@ -242,7 +242,6 @@ impl<S: ScannerFeed> Scanner<S> {
/// Create a new scanner.
///
/// This will begin its execution, spawning several asynchronous tasks.
// TODO: Take start_time and binary search here?
pub async fn new(
db: impl Db,
feed: S,