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79fa9765ca
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace! This was a slightly tedious refactoring that took a long time, so it's not unlikely that some bugs crept in. Nevertheless, it does pass basic functionality testing, and it's just real nice to finally see the same pattern in all contexts. :^)
39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <AK/Vector.h>
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#include <Kernel/FileSystem/SysFS.h>
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#include <Kernel/Firmware/SysFSFirmware.h>
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#include <Kernel/KBuffer.h>
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#include <Kernel/Memory/MappedROM.h>
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#include <Kernel/Memory/Region.h>
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#include <Kernel/PhysicalAddress.h>
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#include <Kernel/VirtualAddress.h>
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namespace Kernel {
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class PowerStateSwitchNode final : public SysFSComponent {
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public:
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static NonnullRefPtr<PowerStateSwitchNode> must_create(FirmwareSysFSDirectory&);
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virtual mode_t permissions() const override;
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virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override;
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virtual ErrorOr<void> truncate(u64) override;
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virtual ErrorOr<void> set_mtime(time_t) { return {}; }
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private:
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PowerStateSwitchNode(FirmwareSysFSDirectory&);
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void reboot();
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void poweroff();
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};
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}
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