Move NotifyNumConnectionsChanged logic to private method.

src/net.cpp

@@ -1153,9 +1153,22 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) {
     }
 }
 
+void CConnman::NotifyNumConnectionsChanged()
+{
+    size_t vNodesSize;
+    {
+        LOCK(cs_vNodes);
+        vNodesSize = vNodes.size();
+    }
+    if(vNodesSize != nPrevNodeCount) {
+        nPrevNodeCount = vNodesSize;
+        if(clientInterface)
+            clientInterface->NotifyNumConnectionsChanged(vNodesSize);
+    }
+}
+
 void CConnman::ThreadSocketHandler()
 {
-    unsigned int nPrevNodeCount = 0;
     while (!interruptNet)
     {
         //
@@ -1219,16 +1232,7 @@ void CConnman::ThreadSocketHandler()
                 }
             }
         }
-        size_t vNodesSize;
+        NotifyNumConnectionsChanged();
-        {
-            LOCK(cs_vNodes);
-            vNodesSize = vNodes.size();
-        }
-        if(vNodesSize != nPrevNodeCount) {
-            nPrevNodeCount = vNodesSize;
-            if(clientInterface)
-                clientInterface->NotifyNumConnectionsChanged(vNodesSize);
-        }
 
         //
         // Find which sockets have data to receive
@@ -2217,6 +2221,7 @@ CConnman::CConnman(uint64_t nSeed0In, uint64_t nSeed1In) : nSeed0(nSeed0In), nSe
     setBannedIsDirty = false;
     fAddressesInitialized = false;
     nLastNodeId = 0;
+    nPrevNodeCount = 0;
     nSendBufferMaxSize = 0;
     nReceiveFloodSize = 0;
     flagInterruptMsgProc = false;

src/net.h

@@ -336,6 +336,7 @@ private:
     void ThreadOpenConnections(std::vector<std::string> connect);
     void ThreadMessageHandler();
     void AcceptConnection(const ListenSocket& hListenSocket);
+    void NotifyNumConnectionsChanged();
     void ThreadSocketHandler();
     void ThreadDNSAddressSeed();
 
@@ -406,6 +407,7 @@ private:
     std::list<CNode*> vNodesDisconnected;
     mutable CCriticalSection cs_vNodes;
     std::atomic<NodeId> nLastNodeId;
+    unsigned int nPrevNodeCount;
 
     /** Services this instance offers */
     ServiceFlags nLocalServices;