QUIC: Only send a new SCUP if enough packets have been sent since the

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 115 matching lines @@
 
 // Default ping timeout.
 const int64 kPingTimeoutSecs = 15;  // 15 secs.
 
 // Minimum number of RTTs between Server Config Updates (SCUP) sent to client.
 const int kMinIntervalBetweenServerConfigUpdatesRTTs = 10;
 
 // Minimum time between Server Config Updates (SCUP) sent to client.
 const int kMinIntervalBetweenServerConfigUpdatesMs = 1000;
 
+// Minimum number of packets between Server Config Updates (SCUP).
+const int kMinPacketsBetweenServerConfigUpdates = 100;
+
 // The number of open streams that a server will accept is set to be slightly
 // larger than the negotiated limit. Immediately closing the connection if the
 // client opens slightly too many streams is not ideal: the client may have sent
 // a FIN that was lost, and simultaneously opened a new stream. The number of
 // streams a server accepts is a fixed increment over the negotiated limit, or a
 // percentage increase, whichever is larger.
 const float kMaxStreamsMultiplier = 1.1f;
 const int kMaxStreamsMinimumIncrement = 10;
 
 // We define an unsigned 16-bit floating point value, inspired by IEEE floats
@@ skipping 941 matching lines @@
   SequenceNumberList* all_transmissions;
   // In flight packets have not been abandoned or lost.
   bool in_flight;
   // True if the packet can never be acked, so it can be removed.
   bool is_unackable;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_