update back-references more aggressively after answering from cache (#…

…7578)
openethereum · Jan 17, 2018 · c7aed33 · c7aed33
1 parent 7aeb6c5
commit c7aed33
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/ethcore/light/src/on_demand/mod.rs b/ethcore/light/src/on_demand/mod.rs
@@ -90,7 +90,14 @@ impl Pending {
 			match self.requests[idx].respond_local(cache) {
 				Some(response) => {
 					self.requests.supply_response_unchecked(&response);
+
+					// update header and back-references after each from-cache
+					// response to ensure that the requests are left in a consistent
+					// state and increase the likelihood of being able to answer
+					// the next request from cache.
 					self.update_header_refs(idx, &response);
+					self.fill_unanswered();
+
 					self.responses.push(response);
 				}
 				None => break,