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.
5 #ifndef COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
6 #define COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
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"
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 {
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();
29 // metrics::MetricsProvider:
30 virtual void OnDidCreateMetricsLog() OVERRIDE;
31 virtual void ProvideSystemProfileMetrics(
32 metrics::SystemProfileProto* system_profile) OVERRIDE;
34 // ConnectionTypeObserver:
35 virtual void OnConnectionTypeChanged(
36 net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
38 metrics::SystemProfileProto::Network::ConnectionType
39 GetConnectionType() const;
40 metrics::SystemProfileProto::Network::WifiPHYLayerProtocol
41 GetWifiPHYLayerProtocol() const;
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);
49 // Writes info about the wireless access points that this system is
51 void WriteWifiAccessPointProto(
52 const WifiAccessPointInfoProvider::WifiAccessPointInfo& info,
53 metrics::SystemProfileProto::Network* network_proto);
55 // Task runner used for blocking file I/O.
56 base::TaskRunner* io_task_runner_;
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_;
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_;
69 // Helper object for retrieving connected wifi access point information.
70 scoped_ptr<WifiAccessPointInfoProvider> wifi_access_point_info_provider_;
72 base::WeakPtrFactory<NetworkMetricsProvider> weak_ptr_factory_;
74 DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider);
77 #endif // COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_