Land Recent QUIC Changes until 03/25/2015.

net/quic/quic_protocol.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.
 
 #ifndef NET_QUIC_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <list>
@@ skipping 63 matching lines @@
 
 // Maximum size of the CWND, in packets, for TCP congestion control algorithms.
 const QuicPacketCount kMaxTcpCongestionWindow = 200;
 
 // Default size of the socket receive buffer in bytes.
 const QuicByteCount kDefaultSocketReceiveBuffer = 256 * 1024;
 // Minimum size of the socket receive buffer in bytes.
 // Smaller values are ignored.
 const QuicByteCount kMinSocketReceiveBuffer = 16 * 1024;
 
+// Fraction of the receive buffer that can be used for encrypted bytes.
+// Allows a 5% overhead for IP and UDP framing, as well as ack only packets.
+static const float kUsableRecieveBufferFraction = 0.95f;
+
 // Don't allow a client to suggest an RTT shorter than 10ms.
 const uint32 kMinInitialRoundTripTimeUs = 10 * kNumMicrosPerMilli;
 
 // Don't allow a client to suggest an RTT longer than 15 seconds.
 const uint32 kMaxInitialRoundTripTimeUs = 15 * kNumMicrosPerSecond;
 
 // Maximum number of open streams per connection.
 const size_t kDefaultMaxStreamsPerConnection = 100;
 
 // Number of bytes reserved for public flags in the packet header.
@@ skipping 953 matching lines @@
   bool in_flight;
   // True if the packet can never be acked, so it can be removed.
   bool is_unackable;
   // True if the packet is an FEC packet.
   bool is_fec_packet;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_