Implement block proposal logic

substrate/tendermint/src/ext.rs

@@ -186,6 +186,9 @@ pub trait Network: Send + Sync {
   /// consider it valid and created a commit for it. This deviates from the paper which will have a
   /// local node refuse to decide on a block it considers invalid. This library acknowledges the
   /// network did decide on it, leaving handling of it to the network, and outside of this scope.
-  fn add_block(&mut self, block: Self::Block, commit: Commit<Self::SignatureScheme>)
-    -> Self::Block;
+  async fn add_block(
+    &mut self,
+    block: Self::Block,
+    commit: Commit<Self::SignatureScheme>,
+  ) -> Self::Block;
 }

substrate/tendermint/src/lib.rs

@@ -318,7 +318,7 @@ impl<N: Network + 'static> TendermintMachine<N> {
                 };
                 debug_assert!(machine.network.read().await.verify_commit(block.id(), &commit));
 
-                let proposal = machine.network.write().await.add_block(block, commit);
+                let proposal = machine.network.write().await.add_block(block, commit).await;
                 machine.reset(proposal).await;
               }
               Err(TendermintError::Malicious(validator)) => {

substrate/tendermint/tests/ext.rs

@@ -113,7 +113,11 @@ impl Network for TestNetwork {
     block.valid
   }
 
-  fn add_block(&mut self, block: TestBlock, commit: Commit<TestSignatureScheme>) -> TestBlock {
+  async fn add_block(
+    &mut self,
+    block: TestBlock,
+    commit: Commit<TestSignatureScheme>,
+  ) -> TestBlock {
     dbg!("Adding ", &block);
     assert!(block.valid.is_ok());
     assert!(self.verify_commit(block.id(), &commit));