init: Stop indexes on shutdown after ChainStateFlushed callback.

Currently, the latest index state may not be committed to disk on shutdown.

Github-Pull: #17897
Rebased-From: 9dd58ca611f6f2b59c25d727a4e955333525d345

1 files changed, 8 insertions, 4 deletions

diff --git a/src/init.cpp b/src/init.cpp
index 543194c2e3..ccb5962c48 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -199,8 +199,6 @@ void Shutdown(InitInterfaces& interfaces)
     // using the other before destroying them.
     if (peerLogic) UnregisterValidationInterface(peerLogic.get());
     if (g_connman) g_connman->Stop();
-    if (g_txindex) g_txindex->Stop();
-    ForEachBlockFilterIndex([](BlockFilterIndex& index) { index.Stop(); });
 
     StopTorControl();
 
@@ -214,8 +212,6 @@ void Shutdown(InitInterfaces& interfaces)
     peerLogic.reset();
     g_connman.reset();
     g_banman.reset();
-    g_txindex.reset();
-    DestroyAllBlockFilterIndexes();
 
     if (::mempool.IsLoaded() && gArgs.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
         DumpMempool(::mempool);
@@ -248,6 +244,14 @@ void Shutdown(InitInterfaces& interfaces)
     // CValidationInterface callbacks, flush them...
     GetMainSignals().FlushBackgroundCallbacks();
 
+    // Stop and delete all indexes only after flushing background callbacks.
+    if (g_txindex) {
+        g_txindex->Stop();
+        g_txindex.reset();
+    }
+    ForEachBlockFilterIndex([](BlockFilterIndex& index) { index.Stop(); });
+    DestroyAllBlockFilterIndexes();
+
     // Any future callbacks will be dropped. This should absolutely be safe - if
     // missing a callback results in an unrecoverable situation, unclean shutdown
     // would too. The only reason to do the above flushes is to let the wallet catch