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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chromeos/components/tether/fake_host_scan_cache.h" | |
| 6 | |
| 7 #include "chromeos/components/tether/tether_host_response_recorder.h" | |
| 8 | |
| 9 namespace chromeos { | |
| 10 | |
| 11 namespace tether { | |
| 12 | |
| 13 namespace { | |
| 14 | |
| 15 // Shared among all FakeHostScanCache instances. This pointer is not used for | |
| 16 // anything, but HostScanCache's constructor calls AddObserver() on the | |
| 17 // TetherHostResponseRecorder* passed to its constructor, so a valid object must | |
| 18 // be passed to the constructor to prevent a segfault. | |
| 19 TetherHostResponseRecorder* kTetherHostResponseRecorder = nullptr; | |
| 20 | |
| 21 TetherHostResponseRecorder* GetTetherHostResponseRecorder() { | |
| 22 if (kTetherHostResponseRecorder) | |
| 23 return kTetherHostResponseRecorder; | |
| 24 | |
| 25 kTetherHostResponseRecorder = | |
| 26 new TetherHostResponseRecorder(nullptr /* pref_service */); | |
| 27 return kTetherHostResponseRecorder; | |
| 28 } | |
| 29 | |
| 30 } // namespace | |
| 31 | |
| 32 FakeHostScanCache::FakeHostScanCache() | |
| 33 : HostScanCache(nullptr /* network_state_handler */, | |
| 34 nullptr /* active_host */, | |
| 35 GetTetherHostResponseRecorder(), | |
| 36 nullptr /* device_id_tether_network_guid_map */) {} | |
| 37 | |
| 38 FakeHostScanCache::~FakeHostScanCache() {} | |
| 39 | |
| 40 const FakeHostScanCache::CacheEntry* FakeHostScanCache::GetCacheEntry( | |
| 41 const std::string& tether_network_guid) { | |
| 42 auto it = cache_.find(tether_network_guid); | |
| 43 if (it == cache_.end()) | |
| 44 return nullptr; | |
| 45 | |
| 46 return &it->second; | |
| 47 } | |
| 48 | |
| 49 void FakeHostScanCache::SetHostScanResult( | |
| 50 const std::string& tether_network_guid, | |
| 51 const std::string& device_name, | |
| 52 const std::string& carrier, | |
| 53 int battery_percentage, | |
| 54 int signal_strength) { | |
| 55 auto it = cache_.find(tether_network_guid); | |
| 56 if (it != cache_.end()) { | |
| 57 // If already in the cache, update the cache with new values. | |
| 58 it->second.device_name = device_name; | |
| 59 it->second.carrier = carrier; | |
| 60 it->second.battery_percentage = battery_percentage; | |
| 61 it->second.signal_strength = signal_strength; | |
| 62 return; | |
| 63 } | |
| 64 | |
| 65 // Otherwise, add a new entry. | |
| 66 cache_.emplace( | |
| 67 tether_network_guid, | |
| 68 CacheEntry{device_name, carrier, battery_percentage, signal_strength}); | |
| 69 } | |
| 70 | |
| 71 bool FakeHostScanCache::RemoveHostScanResult( | |
| 72 const std::string& tether_network_guid) { | |
| 73 if (tether_network_guid == active_host_tether_network_guid()) | |
| 74 return false; | |
| 75 | |
| 76 return cache_.erase(tether_network_guid) > 0; | |
| 77 } | |
| 78 | |
| 79 void FakeHostScanCache::ClearCacheExceptForActiveHost() { | |
| 80 auto it = cache_.begin(); | |
| 81 while (it != cache_.end()) { | |
| 82 if (it->first == active_host_tether_network_guid_) | |
| 83 it++; | |
| 84 else | |
| 85 it = cache_.erase(it); | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 void FakeHostScanCache::OnPreviouslyConnectedHostIdsChanged() {} | |
| 90 | |
| 91 } // namespace tether | |
| 92 | |
| 93 } // namespace chromeos | |
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Chromium Code Reviews
Issue 2861443002:
(Fix landed) Revert of [CrOS Tether] Create HostScanCache, which caches scan results and inserts... (Closed)
