fix dht count when using proxy (fix #231)

src/dhtproxy.cpp

@@ -74,7 +74,7 @@ namespace DhtProxy
         }
     }
     
-    vector<CNode*> getRandomDhtProxies()
+    vector<CNode*> getRandomDhtProxies(int *totalProxyNodes)
     {
         // (cs_vNodes) lock must be held!
         vector<CNode*> vNodesProxy;
@@ -83,6 +83,8 @@ namespace DhtProxy
                 vNodesProxy.push_back(pnode);
             }
         }
+        if( totalProxyNodes ) 
+            *totalProxyNodes = (int) vNodesProxy.size();
         std::random_shuffle(vNodesProxy.begin(),vNodesProxy.end());
         if(vNodesProxy.size() > numProxiesToUse) {
             vNodesProxy.resize(numProxiesToUse);

src/dhtproxy.h

@@ -86,6 +86,8 @@ namespace DhtProxy
     // Handle a dhtput request received from TCP. send request to UDP. (server side)
     // return true if accepted.
     bool dhtputRequestReceived(const CDHTPutRequest& req, CNode* pfrom);
+    
+    vector<CNode*> getRandomDhtProxies(int *totalProxyNodes = NULL);
 }
 
 class CDHTTarget

src/twister.cpp

@@ -459,13 +459,24 @@ void lockAndSaveUserData()
 
 int getDhtNodes(boost::int64_t *dht_global_nodes)
 {
+    int dhtNodes = 0;
+    
+    if( dht_global_nodes )
+        *dht_global_nodes = 0;
+    
+    if( !DhtProxy::fEnabled ) {
         boost::shared_ptr<session> ses(m_ses);
-    if( !ses )
-        return 0;
+        if( ses ) {
             session_status ss = ses->status();
             if( dht_global_nodes )
                 *dht_global_nodes = ss.dht_global_nodes;
-    return ss.dht_nodes;
+            dhtNodes = ss.dht_nodes;
+        }
+    } else {
+        LOCK(cs_vNodes);
+        DhtProxy::getRandomDhtProxies(&dhtNodes);
+    }
+    return dhtNodes;
 }
 
 void torrentManualTrackerUpdate(const std::string &username)