1 files changed, 7 insertions, 0 deletions
diff --git a/src/validationinterface.h b/src/validationinterface.h
index c248781a48..8cae3c6db4 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -19,6 +19,7 @@ class CReserveScript;
 class CValidationInterface;
 class CValidationState;
 class uint256;
+class CScheduler;
 
 // These functions dispatch to one or all registered wallets
 
@@ -72,9 +73,15 @@ private:
     friend void ::RegisterValidationInterface(CValidationInterface*);
     friend void ::UnregisterValidationInterface(CValidationInterface*);
     friend void ::UnregisterAllValidationInterfaces();
+
 public:
     CMainSignals();
 
+    /** Register a CScheduler to give callbacks which should run in the background (may only be called once) */
+    void RegisterBackgroundSignalScheduler(CScheduler& scheduler);
+    /** Unregister a CScheduler to give callbacks which should run in the background - these callbacks will now be dropped! */
+    void UnregisterBackgroundSignalScheduler();
+
     void UpdatedBlockTip(const CBlockIndex *, const CBlockIndex *, bool fInitialDownload);
     void TransactionAddedToMempool(const CTransactionRef &);
     void BlockConnected(const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &);