SlashReport signing and signature publication

processor/signers/src/coordinator/mod.rs

@@ -1,14 +1,9 @@
+use scale::Decode;
 use serai_db::{DbTxn, Db};
 
 use primitives::task::ContinuallyRan;
 
-use crate::{
-  db::{
-    RegisteredKeys, CosignerToCoordinatorMessages, BatchSignerToCoordinatorMessages,
-    SlashReportSignerToCoordinatorMessages, TransactionSignerToCoordinatorMessages,
-  },
-  Coordinator,
-};
+use crate::{db::*, Coordinator};
 
 mod db;
 
@@ -30,6 +25,7 @@ impl<D: Db, C: Coordinator> ContinuallyRan for CoordinatorTask<D, C> {
     let mut iterated = false;
 
     for session in RegisteredKeys::get(&self.db).unwrap_or(vec![]) {
+      // Publish the messages generated by this key's signers
       loop {
         let mut txn = self.db.txn();
         let Some(msg) = CosignerToCoordinatorMessages::try_recv(&mut txn, session) else {
@@ -93,6 +89,26 @@ impl<D: Db, C: Coordinator> ContinuallyRan for CoordinatorTask<D, C> {
 
         txn.commit();
       }
+
+      // If this session signed its slash report, publish its signature
+      {
+        let mut txn = self.db.txn();
+        if let Some(slash_report_signature) = SlashReportSignature::try_recv(&mut txn, session) {
+          iterated = true;
+
+          self
+            .coordinator
+            .publish_slash_report_signature(
+              <_>::decode(&mut slash_report_signature.as_slice()).unwrap(),
+            )
+            .await
+            .map_err(|e| {
+              format!("couldn't send slash report signature to the coordinator: {e:?}")
+            })?;
+
+          txn.commit();
+        }
+      }
     }
 
     // Publish the Batches