- Add a priority field to QuicCryptoServerConfig configs and used it as

net/quic/crypto/quic_crypto_server_config.h

 // Copyright 2013 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_CRYPTO_QUIC_CRYPTO_SERVER_CONFIG_H_
 #define NET_QUIC_CRYPTO_QUIC_CRYPTO_SERVER_CONFIG_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 83 matching lines @@
   // |server_nonce_entropy|: an entropy source used to generate the orbit and
   //     key for server nonces, which are always local to a given instance of a
   //     server.
   QuicCryptoServerConfig(base::StringPiece source_address_token_secret,
                          QuicRandom* server_nonce_entropy);
   ~QuicCryptoServerConfig();
 
   // TESTING is a magic parameter for passing to the constructor in tests.
   static const char TESTING[];
 
-  // DefaultConfig generates a QuicServerConfigProtobuf protobuf suitable for
-  // using in tests.
-  static QuicServerConfigProtobuf* DefaultConfig(
+  // Generates a QuicServerConfigProtobuf protobuf suitable for
+  // AddConfig and SetConfigs.
+  static QuicServerConfigProtobuf* GenerateConfig(
       QuicRandom* rand,
       const QuicClock* clock,
       const ConfigOptions& options);
 
   // AddConfig adds a QuicServerConfigProtobuf to the availible configurations.
   // It returns the SCFG message from the config if successful. The caller
   // takes ownership of the CryptoHandshakeMessage. |now| is used in
   // conjunction with |protobuf->primary_time()| to determine whether the
   // config should be made primary.
   CryptoHandshakeMessage* AddConfig(QuicServerConfigProtobuf* protobuf,
@@ skipping 172 matching lines @@
 
     // is_primary is true if this config is the one that we'll give out to
     // clients as the current one.
     bool is_primary;
 
     // primary_time contains the timestamp when this config should become the
     // primary config. A value of QuicWallTime::Zero() means that this config
     // will not be promoted at a specific time.
     QuicWallTime primary_time;
 
+    // Secondary sort key for use when selecting primary configs and
+    // there are multiple configs with the same primary time.
+    // Smaller numbers mean higher priority.
+    uint64 priority;
+
    private:
     friend class base::RefCounted<Config>;
     virtual ~Config();
 
     DISALLOW_COPY_AND_ASSIGN(Config);
   };
 
   typedef std::map<ServerConfigID, scoped_refptr<Config> > ConfigMap;
 
   // ConfigPrimaryTimeLessThan returns true if a->primary_time <
@@ skipping 109 matching lines @@
   uint32 strike_register_window_secs_;
   uint32 source_address_token_future_secs_;
   uint32 source_address_token_lifetime_secs_;
   uint32 server_nonce_strike_register_max_entries_;
   uint32 server_nonce_strike_register_window_secs_;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_QUIC_CRYPTO_SERVER_CONFIG_H_