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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ | 5 #ifndef CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ |
6 #define CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ | 6 #define CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/time/time.h" | 12 #include "base/time/time.h" |
| 13 #include "chrome/browser/chromeos/power/cpu_data_collector.h" |
13 #include "chromeos/chromeos_export.h" | 14 #include "chromeos/chromeos_export.h" |
14 #include "chromeos/dbus/power_manager_client.h" | 15 #include "chromeos/dbus/power_manager_client.h" |
15 | 16 |
16 namespace power_manager { | 17 namespace power_manager { |
17 class PowerSupplyProperties; | 18 class PowerSupplyProperties; |
18 } | 19 } |
19 | 20 |
20 namespace chromeos { | 21 namespace chromeos { |
21 | 22 |
22 // A class which starts collecting power metrics, like the battery charge, as | 23 // A class which starts collecting power metrics, like the battery charge, as |
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56 }; | 57 }; |
57 | 58 |
58 const std::deque<PowerSupplySample>& power_supply_data() const { | 59 const std::deque<PowerSupplySample>& power_supply_data() const { |
59 return power_supply_data_; | 60 return power_supply_data_; |
60 } | 61 } |
61 | 62 |
62 const std::deque<SystemResumedSample>& system_resumed_data() const { | 63 const std::deque<SystemResumedSample>& system_resumed_data() const { |
63 return system_resumed_data_; | 64 return system_resumed_data_; |
64 } | 65 } |
65 | 66 |
| 67 const CpuDataCollector& cpu_data_collector() const { |
| 68 return cpu_data_collector_; |
| 69 } |
| 70 |
66 // Can be called only after DBusThreadManager is initialized. | 71 // Can be called only after DBusThreadManager is initialized. |
67 static void Initialize(); | 72 static void Initialize(); |
68 | 73 |
| 74 // Same as Initialize, but does not start the CpuDataCollector. |
| 75 static void InitializeForTesting(); |
| 76 |
69 // Can be called only if initialized via Initialize, and before | 77 // Can be called only if initialized via Initialize, and before |
70 // DBusThreadManager is destroyed. | 78 // DBusThreadManager is destroyed. |
71 static void Shutdown(); | 79 static void Shutdown(); |
72 | 80 |
73 // Returns the global instance of PowerDataCollector. | 81 // Returns the global instance of PowerDataCollector. |
74 static PowerDataCollector* Get(); | 82 static PowerDataCollector* Get(); |
75 | 83 |
76 // PowerManagerClient::Observer implementation: | 84 // PowerManagerClient::Observer implementation: |
77 virtual void PowerChanged( | 85 virtual void PowerChanged( |
78 const power_manager::PowerSupplyProperties& prop) OVERRIDE; | 86 const power_manager::PowerSupplyProperties& prop) OVERRIDE; |
79 virtual void SystemResumed(const base::TimeDelta& sleep_duration) OVERRIDE; | 87 virtual void SystemResumed(const base::TimeDelta& sleep_duration) OVERRIDE; |
80 | 88 |
81 // Only those power data samples which fall within the last | 89 // Only those power data samples which fall within the last |
82 // |kSampleTimeLimitSec| are stored in memory. | 90 // |kSampleTimeLimitSec| are stored in memory. |
83 static const int kSampleTimeLimitSec; | 91 static const int kSampleTimeLimitSec; |
84 | 92 |
85 private: | 93 private: |
86 PowerDataCollector(); | 94 explicit PowerDataCollector(const bool start_cpu_data_collector); |
87 | 95 |
88 virtual ~PowerDataCollector(); | 96 virtual ~PowerDataCollector(); |
89 | 97 |
90 std::deque<PowerSupplySample> power_supply_data_; | 98 std::deque<PowerSupplySample> power_supply_data_; |
91 std::deque<SystemResumedSample> system_resumed_data_; | 99 std::deque<SystemResumedSample> system_resumed_data_; |
| 100 CpuDataCollector cpu_data_collector_; |
92 | 101 |
93 DISALLOW_COPY_AND_ASSIGN(PowerDataCollector); | 102 DISALLOW_COPY_AND_ASSIGN(PowerDataCollector); |
94 }; | 103 }; |
95 | 104 |
96 // Adds |sample| to |sample_deque|. | 105 // Adds |sample| to |sample_deque|. |
97 // It dumps samples |PowerDataCollector::kSampleTimeLimitSec| or more older than | 106 // It dumps samples |PowerDataCollector::kSampleTimeLimitSec| or more older than |
98 // |sample|. | 107 // |sample|. |
99 template <typename SampleType> | 108 template <typename SampleType> |
100 void AddSample(std::deque<SampleType>* sample_queue, const SampleType& sample) { | 109 void AddSample(std::deque<SampleType>* sample_queue, const SampleType& sample) { |
101 while (!sample_queue->empty()) { | 110 while (!sample_queue->empty()) { |
102 const SampleType& first = sample_queue->front(); | 111 const SampleType& first = sample_queue->front(); |
103 if (sample.time - first.time > | 112 if (sample.time - first.time > |
104 base::TimeDelta::FromSeconds(PowerDataCollector::kSampleTimeLimitSec)) { | 113 base::TimeDelta::FromSeconds(PowerDataCollector::kSampleTimeLimitSec)) { |
105 sample_queue->pop_front(); | 114 sample_queue->pop_front(); |
106 } else { | 115 } else { |
107 break; | 116 break; |
108 } | 117 } |
109 } | 118 } |
110 sample_queue->push_back(sample); | 119 sample_queue->push_back(sample); |
111 } | 120 } |
112 | 121 |
113 } // namespace chromeos | 122 } // namespace chromeos |
114 | 123 |
115 #endif // CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ | 124 #endif // CHROME_BROWSER_CHROMEOS_POWER_POWER_DATA_COLLECTOR_H_ |
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