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