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751aae77bc
The name "variables" is a bit awkward and what the directory entries are really about is kernel configuration so let's make it clear with the new name.
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*
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* Copyright (c) 2022-2023, 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/AtomicRefCounted.h>
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#include <AK/Error.h>
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#include <AK/Function.h>
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#include <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <Kernel/FileSystem/File.h>
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#include <Kernel/FileSystem/FileSystem.h>
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#include <Kernel/FileSystem/OpenFileDescription.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Kernel/GlobalInformation.h>
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#include <Kernel/Library/KBufferBuilder.h>
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#include <Kernel/Library/KString.h>
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#include <Kernel/Library/UserOrKernelBuffer.h>
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#include <Kernel/Locking/Mutex.h>
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#include <Kernel/Time/TimeManagement.h>
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namespace Kernel {
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class SysFSSystemStringVariable : public SysFSGlobalInformation {
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protected:
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explicit SysFSSystemStringVariable(SysFSDirectory const& parent_directory)
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: SysFSGlobalInformation(parent_directory)
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{
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}
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virtual ErrorOr<NonnullOwnPtr<KString>> value() const = 0;
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virtual void set_value(NonnullOwnPtr<KString> new_value) = 0;
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private:
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// ^SysFSGlobalInformation
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virtual ErrorOr<void> try_generate(KBufferBuilder&) override final;
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// ^SysFSExposedComponent
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virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override final;
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virtual mode_t permissions() const override { return 0644; }
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virtual ErrorOr<void> truncate(u64) override final;
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};
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}
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