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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SYSTEM_NATIVEPOWER_DAEMON_POWER_MANAGER_H_
#define SYSTEM_NATIVEPOWER_DAEMON_POWER_MANAGER_H_
#include <memory>
#include <base/files/file_path.h>
#include <base/macros.h>
#include <base/time/time.h>
#include <nativepower/BnPowerManager.h>
#include "system_property_setter.h"
#include "wake_lock_manager.h"
namespace android {
class PowerManager : public BnPowerManager {
public:
// The part of the reboot or shutdown system properties' values that appears
// before the reason. These strings are hardcoded in
// system/core/init/builtins.cpp.
static const char kRebootPrefix[];
static const char kShutdownPrefix[];
// Value written to |power_state_path_| to suspend the system to memory.
static const char kPowerStateSuspend[];
PowerManager();
~PowerManager() override;
// Must be called before Init().
void set_property_setter_for_testing(
std::unique_ptr<SystemPropertySetterInterface> setter) {
property_setter_ = std::move(setter);
}
// Must be called before Init().
void set_wake_lock_manager_for_testing(
std::unique_ptr<WakeLockManagerInterface> manager) {
wake_lock_manager_ = std::move(manager);
}
void set_power_state_path_for_testing(const base::FilePath& path) {
power_state_path_ = path;
}
// Initializes the object, returning true on success.
bool Init();
// BnPowerManager:
status_t acquireWakeLock(int flags,
const sp<IBinder>& lock,
const String16& tag,
const String16& packageName,
bool isOneWay=false) override;
status_t acquireWakeLockWithUid(int flags,
const sp<IBinder>& lock,
const String16& tag,
const String16& packageName,
int uid,
bool isOneWay=false) override;
status_t releaseWakeLock(const sp<IBinder>& lock,
int flags,
bool isOneWay=false) override;
status_t updateWakeLockUids(const sp<IBinder>& lock,
int len,
const int* uids,
bool isOneWay=false) override;
status_t powerHint(int hintId, int data) override;
status_t goToSleep(int64_t event_time_ms, int reason, int flags) override;
status_t reboot(bool confirm, const String16& reason, bool wait) override;
status_t shutdown(bool confirm, const String16& reason, bool wait) override;
status_t crash(const String16& message) override;
private:
// Helper method for acquireWakeLock*(). Returns true on success.
bool AddWakeLockRequest(const sp<IBinder>& lock,
const String16& tag,
const String16& packageName,
int uid);
std::unique_ptr<SystemPropertySetterInterface> property_setter_;
std::unique_ptr<WakeLockManagerInterface> wake_lock_manager_;
// Path to sysfs file that can be written to change the power state.
base::FilePath power_state_path_;
// System uptime (as duration since boot) when userspace was last resumed from
// suspend. Initially unset.
base::TimeDelta last_resume_uptime_;
DISALLOW_COPY_AND_ASSIGN(PowerManager);
};
} // namespace android
#endif // SYSTEM_NATIVEPOWER_DAEMON_POWER_MANAGER_H_
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