Add ReportDb

processor/scanner/src/db.rs

@@ -47,7 +47,7 @@ impl<S: ScannerFeed> OutputWithInInstruction<S> {
 }
 
 create_db!(
-  Scanner {
+  ScannerGlobal {
     ActiveKeys: <K: Borshy>() -> Vec<SeraiKeyDbEntry<K>>,
     RetireAt: <K: Encode>(key: K) -> u64,
 
@@ -78,8 +78,8 @@ create_db!(
   }
 );
 
-pub(crate) struct ScannerDb<S: ScannerFeed>(PhantomData<S>);
-impl<S: ScannerFeed> ScannerDb<S> {
+pub(crate) struct ScannerGlobalDb<S: ScannerFeed>(PhantomData<S>);
+impl<S: ScannerFeed> ScannerGlobalDb<S> {
   /// Queue a key.
   ///
   /// Keys may be queued whenever, so long as they're scheduled to activate `WINDOW_LENGTH` blocks
@@ -180,20 +180,6 @@ impl<S: ScannerFeed> ScannerDb<S> {
     Some(keys)
   }
 
-  pub(crate) fn set_start_block(txn: &mut impl DbTxn, start_block: u64, id: [u8; 32]) {
-    NextToPotentiallyReportBlock::set(txn, &start_block);
-  }
-
-  pub(crate) fn set_next_to_potentially_report_block(
-    txn: &mut impl DbTxn,
-    next_to_potentially_report_block: u64,
-  ) {
-    NextToPotentiallyReportBlock::set(txn, &next_to_potentially_report_block);
-  }
-  pub(crate) fn next_to_potentially_report_block(getter: &impl Get) -> Option<u64> {
-    NextToPotentiallyReportBlock::get(getter)
-  }
-
   pub(crate) fn set_highest_acknowledged_block(
     txn: &mut impl DbTxn,
     highest_acknowledged_block: u64,
@@ -224,10 +210,6 @@ impl<S: ScannerFeed> ScannerDb<S> {
     NotableBlock::get(getter, number).is_some()
   }
 
-  pub(crate) fn acquire_batch_id(txn: &mut impl DbTxn) -> u32 {
-    todo!("TODO")
-  }
-
   pub(crate) fn return_address_and_in_instruction_for_forwarded_output(
     getter: &impl Get,
     output: &<OutputFor<S> as ReceivedOutput<KeyFor<S>, AddressFor<S>>>::Id,

processor/scanner/src/eventuality/mod.rs

@@ -4,10 +4,9 @@ use serai_db::{Get, DbTxn, Db};
 
 use primitives::{task::ContinuallyRan, OutputType, ReceivedOutput, Eventuality, Block};
 
-// TODO: Localize to EventualityDb?
 use crate::{
   lifetime::LifetimeStage,
-  db::{OutputWithInInstruction, ReceiverScanData, ScannerDb, ScanToEventualityDb},
+  db::{OutputWithInInstruction, ReceiverScanData, ScannerGlobalDb, ScanToEventualityDb},
   BlockExt, ScannerFeed, KeyFor, SchedulerUpdate, Scheduler, sort_outputs,
   scan::{next_to_scan_for_outputs_block, queue_output_until_block},
 };
@@ -69,7 +68,7 @@ pub(crate) fn latest_scannable_block<S: ScannerFeed>(getter: &impl Get) -> Optio
   This forms a backlog only if the latency of scanning, acknowledgement, and intake (including
   checking Eventualities) exceeds the window duration (the desired property).
 */
-struct EventualityTask<D: Db, S: ScannerFeed, Sch: Scheduler<S>> {
+pub(crate) struct EventualityTask<D: Db, S: ScannerFeed, Sch: Scheduler<S>> {
   db: D,
   feed: S,
   scheduler: Sch,
@@ -115,7 +114,7 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
     };
 
     // Fetch the highest acknowledged block
-    let highest_acknowledged = ScannerDb::<S>::highest_acknowledged_block(&self.db)
+    let highest_acknowledged = ScannerGlobalDb::<S>::highest_acknowledged_block(&self.db)
       .expect("EventualityTask run before writing the start block");
 
     // Fetch the next block to check
@@ -132,7 +131,7 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
         // This is possible since even if we receive coins in block 0, any transactions we'd make
         // would resolve in block 1 (the first block we'll check under this non-zero rule)
         let prior_block = b - 1;
-        if ScannerDb::<S>::is_block_notable(&self.db, prior_block) &&
+        if ScannerGlobalDb::<S>::is_block_notable(&self.db, prior_block) &&
           (prior_block > highest_acknowledged)
         {
           break;
@@ -156,7 +155,8 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
         one which decides when to retire a key, and when it marks a key to be retired, it is done
         with it. Accordingly, it's not an issue if such a key was dropped.
       */
-      let mut keys = ScannerDb::<S>::active_keys_as_of_next_to_scan_for_outputs_block(&self.db)
+      let mut keys =
+        ScannerGlobalDb::<S>::active_keys_as_of_next_to_scan_for_outputs_block(&self.db)
           .expect("scanning for a blockchain without any keys set");
       // Since the next-to-scan block is ahead of us, drop keys which have yet to actually activate
       keys.retain(|key| b <= key.activation_block_number);
@@ -226,7 +226,7 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
           };
 
           let (return_address, in_instruction) =
-            ScannerDb::<S>::return_address_and_in_instruction_for_forwarded_output(
+            ScannerGlobalDb::<S>::return_address_and_in_instruction_for_forwarded_output(
               &txn, &forwarded,
             )
             .expect("forwarded an output yet didn't save its InInstruction to the DB");
@@ -281,7 +281,7 @@ impl<D: Db, S: ScannerFeed, Sch: Scheduler<S>> ContinuallyRan for EventualityTas
 
             // Retire this key `WINDOW_LENGTH` blocks in the future to ensure the scan task never
             // has a malleable view of the keys.
-            ScannerDb::<S>::retire_key(&mut txn, b + S::WINDOW_LENGTH, key.key);
+            ScannerGlobalDb::<S>::retire_key(&mut txn, b + S::WINDOW_LENGTH, key.key);
           }
         }
       }

processor/scanner/src/report/db.rs

@@ -0,0 +1,27 @@
+use core::marker::PhantomData;
+
+use serai_db::{Get, DbTxn, Db, create_db};
+
+create_db!(
+  ScannerReport {
+    // The next block to potentially report
+    NextToPotentiallyReportBlock: () -> u64,
+  }
+);
+
+pub(crate) struct ReportDb;
+impl ReportDb {
+  pub(crate) fn set_next_to_potentially_report_block(
+    txn: &mut impl DbTxn,
+    next_to_potentially_report_block: u64,
+  ) {
+    NextToPotentiallyReportBlock::set(txn, &next_to_potentially_report_block);
+  }
+  pub(crate) fn next_to_potentially_report_block(getter: &impl Get) -> Option<u64> {
+    NextToPotentiallyReportBlock::get(getter)
+  }
+
+  pub(crate) fn acquire_batch_id(txn: &mut impl DbTxn) -> u32 {
+    todo!("TODO")
+  }
+}

processor/scanner/src/report/mod.rs

@@ -4,14 +4,16 @@ use serai_db::{DbTxn, Db};
 use serai_primitives::BlockHash;
 use serai_in_instructions_primitives::{MAX_BATCH_SIZE, Batch};
 
-// TODO: Localize to Report?
 use crate::{
-  db::{ScannerDb, ScanToReportDb},
+  db::{ScannerGlobalDb, ScanToReportDb},
   index,
   scan::next_to_scan_for_outputs_block,
   ScannerFeed, ContinuallyRan,
 };
 
+mod db;
+use db::ReportDb;
+
 /*
   This task produces Batches for notable blocks, with all InInstructions, in an ordered fashion.
 
@@ -19,11 +21,24 @@ use crate::{
   Eventualities, have processed the block. This ensures we know if this block is notable, and have
   the InInstructions for it.
 */
-struct ReportTask<D: Db, S: ScannerFeed> {
+pub(crate) struct ReportTask<D: Db, S: ScannerFeed> {
   db: D,
   feed: S,
 }
 
+impl<D: Db, S: ScannerFeed> ReportTask<D, S> {
+  pub(crate) fn new(mut db: D, feed: S, start_block: u64) -> Self {
+    if ReportDb::next_to_potentially_report_block(&db).is_none() {
+      // Initialize the DB
+      let mut txn = db.txn();
+      ReportDb::set_next_to_potentially_report_block(&mut txn, start_block);
+      txn.commit();
+    }
+
+    Self { db, feed }
+  }
+}
+
 #[async_trait::async_trait]
 impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
   async fn run_iteration(&mut self) -> Result<bool, String> {
@@ -44,7 +59,7 @@ impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
       last_scanned
     };
 
-    let next_to_potentially_report = ScannerDb::<S>::next_to_potentially_report_block(&self.db)
+    let next_to_potentially_report = ReportDb::next_to_potentially_report_block(&self.db)
       .expect("ReportTask run before writing the start block");
 
     for b in next_to_potentially_report ..= highest_reportable {
@@ -53,7 +68,7 @@ impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
       // Receive the InInstructions for this block
       // We always do this as we can't trivially tell if we should recv InInstructions before we do
       let in_instructions = ScanToReportDb::<S>::recv_in_instructions(&mut txn, b);
-      let notable = ScannerDb::<S>::is_block_notable(&txn, b);
+      let notable = ScannerGlobalDb::<S>::is_block_notable(&txn, b);
       if !notable {
         assert!(in_instructions.is_empty(), "block wasn't notable yet had InInstructions");
       }
@@ -61,7 +76,7 @@ impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
       if notable {
         let network = S::NETWORK;
         let block_hash = index::block_id(&txn, b);
-        let mut batch_id = ScannerDb::<S>::acquire_batch_id(&mut txn);
+        let mut batch_id = ReportDb::acquire_batch_id(&mut txn);
 
         // start with empty batch
         let mut batches =
@@ -77,7 +92,7 @@ impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
             let instruction = batch.instructions.pop().unwrap();
 
             // bump the id for the new batch
-            batch_id = ScannerDb::<S>::acquire_batch_id(&mut txn);
+            batch_id = ReportDb::acquire_batch_id(&mut txn);
 
             // make a new batch with this instruction included
             batches.push(Batch {
@@ -93,7 +108,7 @@ impl<D: Db, S: ScannerFeed> ContinuallyRan for ReportTask<D, S> {
       }
 
       // Update the next to potentially report block
-      ScannerDb::<S>::set_next_to_potentially_report_block(&mut txn, b + 1);
+      ReportDb::set_next_to_potentially_report_block(&mut txn, b + 1);
 
       txn.commit();
     }

processor/scanner/src/scan/mod.rs

@@ -8,7 +8,6 @@ use serai_in_instructions_primitives::{
 
 use primitives::{task::ContinuallyRan, OutputType, ReceivedOutput, Block};
 
-// TODO: Localize to ScanDb?
 use crate::{
   lifetime::LifetimeStage,
   db::{OutputWithInInstruction, SenderScanData, ScannerDb, ScanToReportDb, ScanToEventualityDb},
@@ -28,6 +27,9 @@ pub(crate) fn queue_output_until_block<S: ScannerFeed>(
   queue_for_block: u64,
   output: &OutputWithInInstruction<S>,
 ) {
+  // This isn't a perfect assertion as by the time this txn commits, we may have already started
+  // scanning this block. That doesn't change it should never trip as we queue outside the window
+  // we'll scan
   assert!(
     queue_for_block >=
       next_to_scan_for_outputs_block::<S>(txn)