Notfiy NQE of QUIC RTT

net/quic/quic_connection.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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 11 matching lines @@
 #include <map>
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "net/base/ip_endpoint.h"
+#include "net/base/socket_performance_watcher.h"
 #include "net/quic/crypto/quic_decrypter.h"
 #include "net/quic/quic_ack_notifier.h"
 #include "net/quic/quic_ack_notifier_manager.h"
 #include "net/quic/quic_alarm.h"
 #include "net/quic/quic_blocked_writer_interface.h"
 #include "net/quic/quic_connection_stats.h"
 #include "net/quic/quic_packet_creator.h"
 #include "net/quic/quic_packet_generator.h"
 #include "net/quic/quic_packet_writer.h"
 #include "net/quic/quic_protocol.h"
@@ skipping 235 matching lines @@
    public:
     virtual ~PacketWriterFactory() {}
 
     virtual QuicPacketWriter* Create(QuicConnection* connection) const = 0;
   };
 
   // Constructs a new QuicConnection for |connection_id| and |address|. Invokes
   // writer_factory->Create() to get a writer; |owns_writer| specifies whether
   // the connection takes ownership of the returned writer. |helper| must
   // outlive this connection.
-  QuicConnection(QuicConnectionId connection_id,
-                 IPEndPoint address,
-                 QuicConnectionHelperInterface* helper,
-                 const PacketWriterFactory& writer_factory,
-                 bool owns_writer,
-                 Perspective perspective,
-                 bool is_secure,
-                 const QuicVersionVector& supported_versions);
+  QuicConnection(
+      QuicConnectionId connection_id,
+      IPEndPoint address,
+      QuicConnectionHelperInterface* helper,
+      const PacketWriterFactory& writer_factory,
+      bool owns_writer,
+      Perspective perspective,
+      bool is_secure,
+      const QuicVersionVector& supported_versions,
+      scoped_ptr<SocketPerformanceWatcher> socket_performance_watcher);

[Ryan Hamilton, 2015/09/10 19:32:04]

quic_connection.h is shared code with the internal repository. as such, it
should not contain chromium-specific code/logic. Can this move into, say
QuicConnectionLogger?

[tbansal1, 2015/09/11 19:38:35]

Done.

   ~QuicConnection() override;
 
   // Sets connection parameters from the supplied |config|.
   void SetFromConfig(const QuicConfig& config);
 
   // Called by the session when sending connection state to the client.
   virtual void OnSendConnectionState(
       const CachedNetworkParameters& cached_network_params);
 
   // Called by the Session when the client has provided CachedNetworkParameters.
@@ skipping 664 matching lines @@
 
   // The size of the largest packet received from peer.
   QuicByteCount largest_received_packet_size_;
 
   // Whether a GoAway has been sent.
   bool goaway_sent_;
 
   // Whether a GoAway has been received.
   bool goaway_received_;
 
+  // Watches the performance of the UDP socket underlying this QUIC connection.
+  // May be null.
+  const scoped_ptr<SocketPerformanceWatcher> socket_performance_watcher_;
+
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_