1 files changed, 6 insertions, 2 deletions
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index 2c10e633b8..6f7077dad6 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -51,8 +51,8 @@ public:
     //! Return number of connections, default is in- and outbound (total)
     int getNumConnections(unsigned int flags = CONNECTIONS_ALL) const;
     int getNumBlocks() const;
-    int getHeaderTipHeight() const;
-    int64_t getHeaderTipTime() const;
+    int getHeaderTipHeight();
+    int64_t getHeaderTipTime();
     //! Return number of transactions in the mempool
     long getMempoolSize() const;
     //! Return the dynamic memory usage of the mempool
@@ -81,6 +81,10 @@ public:
     QString formatClientStartupTime() const;
     QString dataDir() const;
 
+    // caches for the best header
+    std::atomic<int> cachedBestHeaderHeight;
+    std::atomic<int64_t> cachedBestHeaderTime;
+
 private:
     OptionsModel *optionsModel;
     PeerTableModel *peerTableModel;