OLD | NEW |
(Empty) | |
| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef NET_QUIC_NETWORK_CONNECTION_H_ |
| 6 #define NET_QUIC_NETWORK_CONNECTION_H_ |
| 7 |
| 8 #include "base/basictypes.h" |
| 9 #include "net/base/net_export.h" |
| 10 #include "net/base/network_change_notifier.h" |
| 11 |
| 12 namespace net { |
| 13 |
| 14 namespace test { |
| 15 class NetworkConnectionPeer; |
| 16 } // namespace test |
| 17 |
| 18 // This class returns the current network's connection description. It also |
| 19 // cache's the connection description to fix crbug.com/422516. |
| 20 class NET_EXPORT NetworkConnection |
| 21 : public NetworkChangeNotifier::IPAddressObserver, |
| 22 public NetworkChangeNotifier::ConnectionTypeObserver { |
| 23 public: |
| 24 NetworkConnection(); |
| 25 ~NetworkConnection() override {} |
| 26 |
| 27 // Return a string equivalent of current connection type. Callers don't need |
| 28 // to make a copy of the returned C-string value. If the connection type is |
| 29 // CONNECTION_WIFI, then we'll tease out some details when we are on WiFi, and |
| 30 // hopefully leave only ethernet (with no WiFi available) in the |
| 31 // CONNECTION_UNKNOWN category. This *might* err if there is both ethernet, |
| 32 // as well as WiFi, where WiFi was not being used that much. Most platforms |
| 33 // don't distinguish Wifi vs Etherenet, and call everything CONNECTION_UNKNOWN |
| 34 // :-(. Fo non CONNECTIION_WIFI, this returns the C-string returned by |
| 35 // NetworkChangeNotifier::ConnectionTypeToString. |
| 36 const char* GetDescription(); |
| 37 |
| 38 // It clears the cached connection_type_ and connection_description_. |
| 39 void Clear(); |
| 40 |
| 41 // NetworkChangeNotifier::IPAddressObserver methods: |
| 42 void OnIPAddressChanged() override; |
| 43 |
| 44 // NetworkChangeNotifier::ConnectionTypeObserver methods: |
| 45 void OnConnectionTypeChanged( |
| 46 NetworkChangeNotifier::ConnectionType type) override; |
| 47 |
| 48 private: |
| 49 friend class test::NetworkConnectionPeer; |
| 50 |
| 51 // Cache the connection_type and the connection description string to avoid |
| 52 // calling expensive GetWifiPHYLayerProtocol() function. |
| 53 NetworkChangeNotifier::ConnectionType connection_type_; |
| 54 const char* connection_description_; |
| 55 |
| 56 DISALLOW_COPY_AND_ASSIGN(NetworkConnection); |
| 57 }; |
| 58 |
| 59 } // namespace net |
| 60 |
| 61 #endif // NET_QUIC_NETWORK_CONNECTION_H_ |
OLD | NEW |