Remove ports that are not used by any channel after timeout

webrtc/p2p/base/p2ptransportchannel.h

 /*
  *  Copyright 2004 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 109 matching lines @@
   int GetError() override { return error_; }
   bool GetStats(std::vector<ConnectionInfo>* stats) override;
 
   // TODO(honghaiz): Remove this method once the reference of it in
   // Chromoting is removed.
   const Connection* best_connection() const { return selected_connection_; }
 
   const Connection* selected_connection() const { return selected_connection_; }
   void set_incoming_only(bool value) { incoming_only_ = value; }
 
-  // Note: This is only for testing purpose.
-  // |ports_| should not be changed from outside.
+  // Note: These are only for testing purpose.
+  // |ports_| and |pruned_ports| should not be changed from outside.
   const std::vector<PortInterface*>& ports() { return ports_; }
+  const std::vector<PortInterface*>& pruned_ports() { return pruned_ports_; }
 
   IceMode remote_ice_mode() const { return remote_ice_mode_; }
 
   // DTLS methods.
   bool IsDtlsActive() const override { return false; }
 
   // Default implementation.
   bool GetSslRole(rtc::SSLRole* role) const override { return false; }
 
   bool SetSslRole(rtc::SSLRole role) override { return false; }
@@ skipping 34 matching lines @@
     return false;
   }
 
   // Set DTLS Remote fingerprint. Must be after local identity set.
   bool SetRemoteFingerprint(const std::string& digest_alg,
                             const uint8_t* digest,
                             size_t digest_len) override {
     return false;
   }
 
+  void PruneAllPorts();
   int receiving_timeout() const { return config_.receiving_timeout; }
   int check_receiving_interval() const { return check_receiving_interval_; }
 
   // Helper method used only in unittest.
   rtc::DiffServCodePoint DefaultDscpValue() const;
 
   // Public for unit tests.
   Connection* FindNextPingableConnection();
   void MarkConnectionPinged(Connection* conn);
 
@@ skipping 72 matching lines @@
                                PortInterface* origin_port);
   bool IsPingable(const Connection* conn, int64_t now) const;
   bool IsSelectedConnectionPingable(int64_t now);
   int CalculateActiveWritablePingInterval(const Connection* conn,
                                           int64_t now) const;
   void PingConnection(Connection* conn);
   void AddAllocatorSession(std::unique_ptr<PortAllocatorSession> session);
   void AddConnection(Connection* connection);
 
   void OnPortReady(PortAllocatorSession *session, PortInterface* port);
-  // TODO(honghaiz): Merge the two methods OnPortsRemoved and OnPortPruned but
-  // still log the reason of removing.
-  void OnPortsRemoved(PortAllocatorSession* session,
-                      const std::vector<PortInterface*>& ports);
-  void OnPortPruned(PortAllocatorSession* session, PortInterface* port);
+  void OnPortsPruned(PortAllocatorSession* session,
+                     const std::vector<PortInterface*>& ports);
   void OnCandidatesReady(PortAllocatorSession *session,
                          const std::vector<Candidate>& candidates);
   void OnCandidatesRemoved(PortAllocatorSession* session,
                            const std::vector<Candidate>& candidates);
   void OnCandidatesAllocationDone(PortAllocatorSession* session);
   void OnUnknownAddress(PortInterface* port,
                         const rtc::SocketAddress& addr,
                         ProtocolType proto,
                         IceMessage* stun_msg,
                         const std::string& remote_username,
                         bool port_muxed);
 
   // When a port is destroyed, remove it from both lists |ports_|
-  // and |removed_ports_|.
+  // and |pruned_ports_|.
   void OnPortDestroyed(PortInterface* port);
-  // When removing a port, move it from |ports_| to |removed_ports_|.
+  // When pruning a port, move it from |ports_| to |pruned_ports_|.
   // Returns true if the port is found and removed from |ports_|.
-  bool RemovePort(PortInterface* port);
+  bool PrunePort(PortInterface* port);
   void OnRoleConflict(PortInterface* port);
 
   void OnConnectionStateChange(Connection* connection);
   void OnReadPacket(Connection *connection, const char *data, size_t len,
                     const rtc::PacketTime& packet_time);
   void OnSentPacket(const rtc::SentPacket& sent_packet);
   void OnReadyToSend(Connection* connection);
   void OnConnectionDestroyed(Connection *connection);
 
   void OnNominated(Connection* conn);
@@ skipping 47 matching lines @@
   }
 
   PortAllocator* allocator_;
   rtc::Thread* worker_thread_;
   bool incoming_only_;
   int error_;
   std::vector<std::unique_ptr<PortAllocatorSession>> allocator_sessions_;
   // |ports_| contains ports that are used to form new connections when
   // new remote candidates are added.
   std::vector<PortInterface*> ports_;
-  // |removed_ports_| contains ports that have been removed from |ports_| and
+  // |pruned_ports_| contains ports that have been removed from |ports_| and
   // are not being used to form new connections, but that aren't yet destroyed.
   // They may have existing connections, and they still fire signals such as
   // SignalUnknownAddress.
-  std::vector<PortInterface*> removed_ports_;
+  std::vector<PortInterface*> pruned_ports_;
 
   // |connections_| is a sorted list with the first one always be the
   // |selected_connection_| when it's not nullptr. The combination of
   // |pinged_connections_| and |unpinged_connections_| has the same
   // connections as |connections_|. These 2 sets maintain whether a
   // connection should be pinged next or not.
   std::vector<Connection *> connections_;
   std::set<Connection*> pinged_connections_;
   std::set<Connection*> unpinged_connections_;
 
@@ skipping 19 matching lines @@
   IceConfig config_;
   int last_sent_packet_id_ = -1;  // -1 indicates no packet was sent before.
   bool started_pinging_ = false;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(P2PTransportChannel);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_P2PTRANSPORTCHANNEL_H_