mirror of
https://github.com/RGBCube/serenity
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b02ee664e7
To do this we also need to get rid of LockRefPtrs in the USB code as well. Most of the SysFS nodes are statically generated during boot and are not mutated afterwards. The same goes for general device code - once we generate the appropriate SysFS nodes, we almost never mutate the node pointers afterwards, making locking unnecessary.
37 lines
1 KiB
C++
37 lines
1 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/Subsystems/Kernel/Directory.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 SysFSPowerStateSwitchNode final : public SysFSComponent {
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public:
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virtual StringView name() const override { return "power_state"sv; }
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static NonnullRefPtr<SysFSPowerStateSwitchNode> must_create(SysFSDirectory const&);
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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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private:
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explicit SysFSPowerStateSwitchNode(SysFSDirectory const&);
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void reboot();
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void poweroff();
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};
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}
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