1 files changed, 8 insertions, 2 deletions
diff --git a/src/net.h b/src/net.h
index beec58c389..b04b73e696 100644
--- a/src/net.h
+++ b/src/net.h
@@ -1221,6 +1221,11 @@ public:
     //! that peer during `net_processing.cpp:PushNodeVersion()`.
     ServiceFlags GetLocalServices() const;
 
+    //! Updates the local services that this node advertises to other peers
+    //! during connection handshake.
+    void AddLocalServices(ServiceFlags services) { nLocalServices = ServiceFlags(nLocalServices | services); };
+    void RemoveLocalServices(ServiceFlags services) { nLocalServices = ServiceFlags(nLocalServices & ~services); }
+
     uint64_t GetMaxOutboundTarget() const EXCLUSIVE_LOCKS_REQUIRED(!m_total_bytes_sent_mutex);
     std::chrono::seconds GetMaxOutboundTimeframe() const;
 
@@ -1460,11 +1465,12 @@ private:
      * This data is replicated in each Peer instance we create.
      *
      * This data is not marked const, but after being set it should not
-     * change.
+     * change. Unless AssumeUTXO is started, in which case, the peer
+     * will be limited until the background chain sync finishes.
      *
      * \sa Peer::our_services
      */
-    ServiceFlags nLocalServices;
+    std::atomic<ServiceFlags> nLocalServices;
 
     std::unique_ptr<CSemaphore> semOutbound;
     std::unique_ptr<CSemaphore> semAddnode;