Stop processing any incoming packets when turn port is disconnected.

webrtc/p2p/base/turnport.h

 /*
  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 133 matching lines @@
   sigslot::signal3<TurnPort*, const rtc::SocketAddress&, int>
       SignalCreatePermissionResult;
   void FlushRequests(int msg_type) { request_manager_.Flush(msg_type); }
   bool HasRequests() { return !request_manager_.empty(); }
   void set_credentials(RelayCredentials& credentials) {
     credentials_ = credentials;
   }
   // Finds the turn entry with |address| and sets its channel id.
   // Returns true if the entry is found.
   bool SetEntryChannelId(const rtc::SocketAddress& address, int channel_id);
+  // Visible for testing.
+  // Shuts down the turn port, usually because of some fatal errors.
+  void Close();
 
  protected:
   TurnPort(rtc::Thread* thread,
            rtc::PacketSocketFactory* factory,
            rtc::Network* network,
            rtc::AsyncPacketSocket* socket,
            const std::string& username,
            const std::string& password,
            const ProtocolAddress& server_address,
            const RelayCredentials& credentials,
@@ skipping 30 matching lines @@
   bool CreateTurnClientSocket();
 
   void set_nonce(const std::string& nonce) { nonce_ = nonce; }
   void set_realm(const std::string& realm) {
     if (realm != realm_) {
       realm_ = realm;
       UpdateHash();
     }
   }
 
-  // Shuts down the turn port, usually because of some fatal errors.
-  void Close();
   void OnTurnRefreshError();
   bool SetAlternateServer(const rtc::SocketAddress& address);
   void ResolveTurnAddress(const rtc::SocketAddress& address);
   void OnResolveResult(rtc::AsyncResolverInterface* resolver);
 
   void AddRequestAuthInfo(StunMessage* msg);
   void OnSendStunPacket(const void* data, size_t size, StunRequest* request);
   // Stun address from allocate success response.
   // Currently used only for testing.
   void OnStunAddress(const rtc::SocketAddress& address);
@@ skipping 64 matching lines @@
   friend class TurnEntry;
   friend class TurnAllocateRequest;
   friend class TurnRefreshRequest;
   friend class TurnCreatePermissionRequest;
   friend class TurnChannelBindRequest;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_TURNPORT_H_