Fix unlocked access to vNodes.size() (#1654)

dashpay · Sep 25, 2017 · 7a89104 · 7a89104
1 parent 08e503d
commit 7a89104
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/src/net.cpp b/src/net.cpp
@@ -1170,8 +1170,13 @@ void CConnman::ThreadSocketHandler()
                 }
             }
         }
-        if(vNodes.size() != nPrevNodeCount) {
-            nPrevNodeCount = vNodes.size();
+        size_t vNodesSize;
+        {
+            LOCK(cs_vNodes);
+            vNodesSize = vNodes.size();
+        }
+        if(vNodesSize != nPrevNodeCount) {
+            nPrevNodeCount = vNodesSize;
             if(clientInterface)
                 clientInterface->NotifyNumConnectionsChanged(nPrevNodeCount);
         }