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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ | 5 #ifndef CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ |
6 #define CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ | 6 #define CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "components/cryptauth/remote_device.h" | 9 #include "components/cryptauth/remote_device.h" |
10 | 10 |
11 namespace chromeos { | 11 namespace chromeos { |
12 | 12 |
13 namespace tether { | 13 namespace tether { |
14 | 14 |
15 class TetherHostResponseRecorder; | |
16 | |
17 // Prioritizes the order of devices when performing a host scan. To optimize for | 15 // Prioritizes the order of devices when performing a host scan. To optimize for |
18 // the most common tethering operations, this class uses the following rules: | 16 // the most common tethering operations, this class uses the following rules: |
19 // * The device which has most recently sent a successful | 17 // * The device which has most recently sent a successful |
20 // ConnectTetheringResponse is always at the front of the queue. | 18 // ConnectTetheringResponse is always at the front of the queue. |
21 // * Devices which have most recently sent a successful | 19 // * Devices which have most recently sent a successful |
22 // TetherAvailabilityResponse are next in the order, as long as they do not | 20 // TetherAvailabilityResponse are next in the order, as long as they do not |
23 // violate the first rule. | 21 // violate the first rule. |
24 // * All other devices are left in the order they are passed. | 22 // * All other devices are left in the order they are passed. |
25 class HostScanDevicePrioritizer { | 23 class HostScanDevicePrioritizer { |
26 public: | 24 public: |
27 HostScanDevicePrioritizer( | 25 HostScanDevicePrioritizer() {} |
28 TetherHostResponseRecorder* tether_host_response_recorder); | 26 virtual ~HostScanDevicePrioritizer() {} |
29 virtual ~HostScanDevicePrioritizer(); | |
30 | 27 |
31 // Prioritizes |remote_devices| using the rules described above. | 28 // Prioritizes |remote_devices| using the rules described above. |
32 virtual void SortByHostScanOrder( | 29 virtual void SortByHostScanOrder( |
33 std::vector<cryptauth::RemoteDevice>* remote_devices) const; | 30 std::vector<cryptauth::RemoteDevice>* remote_devices) const = 0; |
34 | 31 |
35 private: | 32 private: |
36 TetherHostResponseRecorder* tether_host_response_recorder_; | |
37 | |
38 DISALLOW_COPY_AND_ASSIGN(HostScanDevicePrioritizer); | 33 DISALLOW_COPY_AND_ASSIGN(HostScanDevicePrioritizer); |
39 }; | 34 }; |
40 | 35 |
41 } // namespace tether | 36 } // namespace tether |
42 | 37 |
43 } // namespace chromeos | 38 } // namespace chromeos |
44 | 39 |
45 #endif // CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ | 40 #endif // CHROMEOS_COMPONENTS_TETHER_HOST_SCAN_DEVICE_PRIORITIZER_H_ |
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