Don't disconnect masternode connections when we have less then the desired amount of outbound nodes (#3255)

src/masternode/masternode-utils.cpp

@@ -27,6 +27,17 @@ void CMasternodeUtils::ProcessMasternodeConnections(CConnman& connman)
     privateSendClient.GetMixingMasternodesInfo(vecDmns);
 #endif // ENABLE_WALLET
 
+    // Don't disconnect masternode connections when we have less then the desired amount of outbound nodes
+    int nonMasternodeCount = 0;
+    connman.ForEachNode(CConnman::AllNodes, [&](CNode* pnode) {
+        if (!pnode->fInbound && !pnode->fFeeler && !pnode->m_manual_connection && !pnode->fMasternode) {
+            nonMasternodeCount++;
+        }
+    });
+    if (nonMasternodeCount < connman.GetMaxOutboundNodeCount()) {
+        return;
+    }
+
     connman.ForEachNode(CConnman::AllNodes, [&](CNode* pnode) {
         if (pnode->fMasternode && !connman.IsMasternodeQuorumNode(pnode)) {
 #ifdef ENABLE_WALLET

src/net.cpp

@@ -2924,6 +2924,11 @@ size_t CConnman::GetNodeCount(NumConnections flags)
     return nNum;
 }
 
+size_t CConnman::GetMaxOutboundNodeCount()
+{
+    return nMaxOutbound;
+}
+
 void CConnman::GetNodeStats(std::vector<CNodeStats>& vstats)
 {
     vstats.clear();

src/net.h

@@ -407,6 +407,7 @@ public:
     bool IsMasternodeQuorumNode(const CNode* pnode);
 
     size_t GetNodeCount(NumConnections num);
+    size_t GetMaxOutboundNodeCount();
     void GetNodeStats(std::vector<CNodeStats>& vstats);
     bool DisconnectNode(const std::string& node);
     bool DisconnectNode(NodeId id);