Deciding best connection to schedule requests on based on cwnd and idle time

net/socket/client_socket_pool_base.h

 // Copyright (c) 2011 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 ClientSocketPoolBase is used to restrict the number of sockets open at
 // a time.  It also maintains a list of idle persistent sockets for reuse.
 // Subclasses of ClientSocketPool should compose ClientSocketPoolBase to handle
 // the core logic of (1) restricting the number of active (connected or
 // connecting) sockets per "group" (generally speaking, the hostname), (2)
 // maintaining a per-group list of idle, persistent sockets for reuse, and (3)
@@ skipping 271 matching lines @@
   // See ClientSocketPool::GetInfoAsValue for documentation on this function.
   DictionaryValue* GetInfoAsValue(const std::string& name,
                                   const std::string& type) const;
 
   base::TimeDelta ConnectionTimeout() const {
     return connect_job_factory_->ConnectionTimeout();
   }
 
   static bool connect_backup_jobs_enabled();
   static bool set_connect_backup_jobs_enabled(bool enabled);
+  static double set_bytes_read_vs_last_accessed_alpha(double alpha);

[wtc, 2011/06/06 17:24:05]

Please document this method.  (I don't know what "alpha" means.)

[Gagan, 2011/06/08 16:26:37]

renamed to tcp_socket_estimated_cwnd_decay_coef and added a comment explaining
its use.
its a coefficient used to decay the estimated cwnd of a socket based on its idle
time.

 
   void EnableConnectBackupJobs();
 
   // ConnectJob::Delegate methods:
   virtual void OnConnectJobComplete(int result, ConnectJob* job);
 
   // NetworkChangeNotifier::IPAddressObserver methods:
   virtual void OnIPAddressChanged();
 
  private:
@@ skipping 444 matching lines @@
   // Histograms for the pool
   ClientSocketPoolHistograms* const histograms_;
   internal::ClientSocketPoolBaseHelper helper_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientSocketPoolBase);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_BASE_H_