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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/power/power_data_collector.h"
#include "base/check.h"
#include "chromeos/dbus/power/power_manager_client.h"
#include "chromeos/dbus/power_manager/power_supply_properties.pb.h"
namespace ash {
namespace {
// The global PowerDataCollector instance.
PowerDataCollector* g_power_data_collector = nullptr;
} // namespace
const int PowerDataCollector::kSampleTimeLimitSec = 24 * 60 * 60;
// static
void PowerDataCollector::Initialize() {
// Check that power data collector is initialized only after the
// PowerManagerClient is initialized.
CHECK(chromeos::PowerManagerClient::Get());
CHECK(g_power_data_collector == nullptr);
g_power_data_collector = new PowerDataCollector(true);
}
void PowerDataCollector::InitializeForTesting() {
CHECK(chromeos::PowerManagerClient::Get());
CHECK(g_power_data_collector == nullptr);
g_power_data_collector = new PowerDataCollector(false);
}
// static
void PowerDataCollector::Shutdown() {
// Shutdown only if initialized.
CHECK(g_power_data_collector);
delete g_power_data_collector;
g_power_data_collector = nullptr;
}
// static
PowerDataCollector* PowerDataCollector::Get() {
CHECK(g_power_data_collector);
return g_power_data_collector;
}
void PowerDataCollector::PowerChanged(
const power_manager::PowerSupplyProperties& prop) {
PowerSupplySample sample;
sample.time = base::Time::Now();
sample.external_power = (prop.external_power() !=
power_manager::PowerSupplyProperties::DISCONNECTED);
sample.battery_percent = prop.battery_percent();
sample.battery_discharge_rate = prop.battery_discharge_rate();
AddSample(&power_supply_data_, sample);
}
void PowerDataCollector::SuspendDone(base::TimeDelta sleep_duration) {
SystemResumedSample sample;
sample.time = base::Time::Now();
sample.sleep_duration = sleep_duration;
AddSample(&system_resumed_data_, sample);
}
PowerDataCollector::PowerDataCollector(const bool start_cpu_data_collector) {
chromeos::PowerManagerClient::Get()->AddObserver(this);
if (start_cpu_data_collector)
cpu_data_collector_.Start();
}
PowerDataCollector::~PowerDataCollector() {
chromeos::PowerManagerClient::Get()->RemoveObserver(this);
}
PowerDataCollector::PowerSupplySample::PowerSupplySample()
: external_power(false),
battery_percent(0.0),
battery_discharge_rate(0.0) {
}
PowerDataCollector::SystemResumedSample::SystemResumedSample() = default;
} // namespace ash
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