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serenity/Kernel/FileSystem/SysFS/Subsystems/Firmware/PowerStateSwitch.h
Andreas Kling 11eee67b85 Kernel: Make self-contained locking smart pointers their own classes
Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
2022-08-20 17:20:43 +02:00

39 lines
1.2 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Types.h>
#include <AK/Vector.h>
#include <Kernel/FileSystem/SysFS.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Firmware/Directory.h>
#include <Kernel/KBuffer.h>
#include <Kernel/Library/LockRefPtr.h>
#include <Kernel/Memory/MappedROM.h>
#include <Kernel/Memory/Region.h>
#include <Kernel/PhysicalAddress.h>
#include <Kernel/VirtualAddress.h>
namespace Kernel {
class PowerStateSwitchNode final : public SysFSComponent {
public:
virtual StringView name() const override { return "power_state"sv; }
static NonnullLockRefPtr<PowerStateSwitchNode> must_create(FirmwareSysFSDirectory&);
virtual mode_t permissions() const override;
virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override;
virtual ErrorOr<void> truncate(u64) override;
virtual ErrorOr<void> set_mtime(time_t) override { return {}; }
private:
PowerStateSwitchNode(FirmwareSysFSDirectory&);
void reboot();
void poweroff();
};
}