step 6

apps/LoopThroughWithOpenGLCompositing/runtime/store/RuntimeStore.cpp

@@ -156,6 +156,21 @@ bool RuntimeStore::RequestPersistence(const PersistenceRequest& request, std::st
 	return false;
 }
 
+bool RuntimeStore::FlushPersistenceForShutdown(std::chrono::milliseconds timeout, std::string& error)
+{
+	if (mPersistenceWriter.StopAndFlush(timeout, error))
+		return true;
+
+	mHealthTelemetry.RecordPersistenceWriteResult(
+		false,
+		PersistenceTargetKindName(PersistenceTargetKind::RuntimeState),
+		std::string(),
+		"shutdown-flush",
+		error,
+		true);
+	return false;
+}
+
 PersistenceSnapshot RuntimeStore::BuildRuntimeStatePersistenceSnapshotLocked(const PersistenceRequest& request) const
 {
 	PersistenceSnapshot snapshot;

apps/LoopThroughWithOpenGLCompositing/runtime/store/RuntimeStore.h

@@ -33,6 +33,7 @@ public:
 	std::string BuildPersistentStateJson() const;
 	PersistenceSnapshot BuildRuntimeStatePersistenceSnapshot(const PersistenceRequest& request) const;
 	bool RequestPersistence(const PersistenceRequest& request, std::string& error);
+	bool FlushPersistenceForShutdown(std::chrono::milliseconds timeout, std::string& error);
 	bool PollStoredFileChanges(bool& registryChanged, bool& reloadRequested, std::string& error);
 
 	bool CreateStoredLayer(const std::string& shaderId, std::string& error);