1 // Copyright 2014 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 COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_ 6 #define COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/weak_ptr.h" 11 #include "components/metrics/metrics_provider.h" 12 #include "components/metrics/net/wifi_access_point_info_provider.h" 13 #include "components/metrics/proto/system_profile.pb.h" 14 #include "net/base/net_util.h" 15 #include "net/base/network_change_notifier.h" 16 17 // Registers as observer with net::NetworkChangeNotifier and keeps track of 18 // the network environment. 19 class NetworkMetricsProvider 20 : public metrics::MetricsProvider, 21 public net::NetworkChangeNotifier::ConnectionTypeObserver { 22 public: 23 // Creates a NetworkMetricsProvider, where |io_task_runner| is used to post 24 // network info collection tasks. 25 explicit NetworkMetricsProvider(base::TaskRunner* io_task_runner); 26 virtual ~NetworkMetricsProvider(); 27 28 private: 29 // metrics::MetricsProvider: 30 virtual void OnDidCreateMetricsLog() OVERRIDE; 31 virtual void ProvideSystemProfileMetrics( 32 metrics::SystemProfileProto* system_profile) OVERRIDE; 33 34 // ConnectionTypeObserver: 35 virtual void OnConnectionTypeChanged( 36 net::NetworkChangeNotifier::ConnectionType type) OVERRIDE; 37 38 metrics::SystemProfileProto::Network::ConnectionType 39 GetConnectionType() const; 40 metrics::SystemProfileProto::Network::WifiPHYLayerProtocol 41 GetWifiPHYLayerProtocol() const; 42 43 // Posts a call to net::GetWifiPHYLayerProtocol on the blocking pool. 44 void ProbeWifiPHYLayerProtocol(); 45 // Callback from the blocking pool with the result of 46 // net::GetWifiPHYLayerProtocol. 47 void OnWifiPHYLayerProtocolResult(net::WifiPHYLayerProtocol mode); 48 49 // Writes info about the wireless access points that this system is 50 // connected to. 51 void WriteWifiAccessPointProto( 52 const WifiAccessPointInfoProvider::WifiAccessPointInfo& info, 53 metrics::SystemProfileProto::Network* network_proto); 54 55 // Task runner used for blocking file I/O. 56 base::TaskRunner* io_task_runner_; 57 58 // True if |connection_type_| changed during the lifetime of the log. 59 bool connection_type_is_ambiguous_; 60 // The connection type according to net::NetworkChangeNotifier. 61 net::NetworkChangeNotifier::ConnectionType connection_type_; 62 63 // True if |wifi_phy_layer_protocol_| changed during the lifetime of the log. 64 bool wifi_phy_layer_protocol_is_ambiguous_; 65 // The PHY mode of the currently associated access point obtained via 66 // net::GetWifiPHYLayerProtocol. 67 net::WifiPHYLayerProtocol wifi_phy_layer_protocol_; 68 69 // Helper object for retrieving connected wifi access point information. 70 scoped_ptr<WifiAccessPointInfoProvider> wifi_access_point_info_provider_; 71 72 base::WeakPtrFactory<NetworkMetricsProvider> weak_ptr_factory_; 73 74 DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider); 75 }; 76 77 #endif // COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_ 78