Create an interface for explicit notification of Dispatcher about

net/tools/quic/quic_dispatcher.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A server side dispatcher which dispatches a given client's data to their
 // stream.
 
 #ifndef NET_TOOLS_QUIC_QUIC_DISPATCHER_H_
 #define NET_TOOLS_QUIC_QUIC_DISPATCHER_H_
 
@@ skipping 35 matching lines @@
 
 class QuicPacketWriterWrapper;
 
 namespace test {
 class QuicDispatcherPeer;
 }  // namespace test
 
 class DeleteSessionsAlarm;
 class QuicEpollConnectionHelper;
 
-class QuicDispatcher : public QuicPacketWriter, public QuicSessionOwner {
+class QuicDispatcher : public QuicPacketWriter,
+                       public QuicServerSessionVisitor {
  public:
   // Ideally we'd have a linked_hash_set: the  boolean is unused.
   typedef linked_hash_map<QuicBlockedWriterInterface*, bool> WriteBlockedList;
 
   // Due to the way delete_sessions_closure_ is registered, the Dispatcher
   // must live until epoll_server Shutdown. |supported_versions| specifies the
   // list of supported QUIC versions.
   QuicDispatcher(const QuicConfig& config,
                  const QuicCryptoServerConfig& crypto_config,
                  const QuicVersionVector& supported_versions,
@@ skipping 21 matching lines @@
 
   // Called when the underyling connection becomes writable to allow
   // queued writes to happen.
   //
   // Returns true if more writes are possible, false otherwise.
   virtual bool OnCanWrite();
 
   // Sends ConnectionClose frames to all connected clients.
   void Shutdown();
 
+  // QuicServerSessionVisitor interface implementation:
   // Ensure that the closed connection is cleaned up asynchronously.
   virtual void OnConnectionClosed(QuicGuid guid, QuicErrorCode error) OVERRIDE;
 
+  // Queues the blocked writer for later resumption.
+  virtual void OnWriteBlocked(QuicBlockedWriterInterface* writer) OVERRIDE;
+
   typedef base::hash_map<QuicGuid, QuicSession*> SessionMap;
 
   virtual QuicSession* CreateQuicSession(
       QuicGuid guid,
       const IPEndPoint& server_address,
       const IPEndPoint& client_address);
 
   // Deletes all sessions on the closed session list and clears the list.
   void DeleteSessions();
 
@@ skipping 100 matching lines @@
   QuicFramer framer_;
   scoped_ptr<QuicFramerVisitor> framer_visitor_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicDispatcher);
 };
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_DISPATCHER_H_