| // 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 CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_H_ |
| #define CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_H_ |
| |
| #include <set> |
| |
| #include "base/basictypes.h" |
| #include "base/strings/string16.h" |
| #include "content/common/content_export.h" |
| |
| namespace content { |
| |
| // Wifi data relating to a single access point. |
| struct CONTENT_EXPORT AccessPointData { |
| AccessPointData(); |
| ~AccessPointData(); |
| |
| // MAC address, formatted as per MacAddressAsString16. |
| base::string16 mac_address; |
| int radio_signal_strength; // Measured in dBm |
| int channel; |
| int signal_to_noise; // Ratio in dB |
| base::string16 ssid; // Network identifier |
| }; |
| |
| // This is to allow AccessPointData to be used in std::set. We order |
| // lexicographically by MAC address. |
| struct AccessPointDataLess { |
| bool operator()(const AccessPointData& data1, |
| const AccessPointData& data2) const { |
| return data1.mac_address < data2.mac_address; |
| } |
| }; |
| |
| // All data for wifi. |
| struct CONTENT_EXPORT WifiData { |
| WifiData(); |
| ~WifiData(); |
| |
| // Determines whether a new set of WiFi data differs significantly from this. |
| bool DiffersSignificantly(const WifiData& other) const; |
| |
| // Store access points as a set, sorted by MAC address. This allows quick |
| // comparison of sets for detecting changes and for caching. |
| typedef std::set<AccessPointData, AccessPointDataLess> AccessPointDataSet; |
| AccessPointDataSet access_point_data; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_H_ |