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Handle signing batches in the processor

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Duplicates the existing signer for one tailored to batch signing.
This commit is contained in:
Luke Parker
2023-04-10 11:11:46 -04:00
parent 82c34dcc76
commit d323fc8b7b
13 changed files with 576 additions and 69 deletions
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49
processor/src/scanner.rs
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@@ -1,6 +1,7 @@
use core::{marker::PhantomData, time::Duration};
use core::marker::PhantomData;
use std::{
sync::Arc,
time::{SystemTime, Duration},
collections::{HashSet, HashMap},
};
@@ -20,8 +21,8 @@ use crate::{
#[derive(Clone, Debug)]
pub enum ScannerEvent<C: Coin> {
// Outputs received
Outputs(<C::Curve as Ciphersuite>::G, <C::Block as Block<C>>::Id, Vec<C::Output>),
// Block scanned
Block(<C::Curve as Ciphersuite>::G, <C::Block as Block<C>>::Id, SystemTime, Vec<C::Output>),
}
pub type ScannerEventChannel<C> = mpsc::UnboundedReceiver<ScannerEvent<C>>;
@@ -395,7 +396,6 @@ impl<C: Coin, D: Db> Scanner<C, D> {
scanner.ram_outputs.insert(id);
}
// TODO: Still fire an empty Outputs event if we haven't had inputs in a while
if outputs.is_empty() {
continue;
}
@@ -405,8 +405,47 @@ impl<C: Coin, D: Db> Scanner<C, D> {
scanner.db.save_outputs(&mut txn, &key, &block_id, &outputs);
txn.commit();
const TIME_TOLERANCE: u64 = 15;
let now = SystemTime::now();
let mut time = block.time();
// Block is older than the tolerance
// This isn't an issue, yet shows our daemon may have fallen behind/been disconnected
if now.duration_since(time).unwrap_or(Duration::ZERO) >
Duration::from_secs(TIME_TOLERANCE)
{
warn!(
"the time is {} and we only just received a block dated {}",
(now.duration_since(SystemTime::UNIX_EPOCH)).expect("now before epoch").as_secs(),
(time.duration_since(SystemTime::UNIX_EPOCH))
.expect("block time before epoch")
.as_secs(),
);
}
// If this block is in the future, either this server's clock is wrong OR the block's
// miner's clock is wrong. The latter is the problem
//
// This time is used to schedule signing sessions over the content of this block
// If it's in the future, the first attempt won't time out until this block is no
// longer in the future
//
// Since we don't need consensus, if this time is more than 15s in the future,
// set it to the local time
//
// As long as a supermajority of nodes set a time within ~15s of each other, this
// should be fine
// TODO2: Make more robust
if time.duration_since(now).unwrap_or(Duration::ZERO) >
Duration::from_secs(TIME_TOLERANCE)
{
time = now;
}
// Send all outputs
if !scanner.emit(ScannerEvent::Outputs(key, block_id, outputs)) {
if !scanner.emit(ScannerEvent::Block(key, block_id, time, outputs)) {
return;
}
// Write this number as scanned so we won't re-fire these outputs