1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-06-11 02:13:56 +09:00
ladybird/Kernel/FileSystem/SysFS/Subsystems/Kernel/Configuration/StringVariable.h
Liav A 751aae77bc Kernel: Rename /sys/kernel/variables => /sys/kernel/conf
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.
2023-08-27 22:50:22 +02:00

46 lines
1.4 KiB
C++

/*
* Copyright (c) 2022-2023, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/AtomicRefCounted.h>
#include <AK/Error.h>
#include <AK/Function.h>
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <AK/Types.h>
#include <Kernel/FileSystem/File.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/OpenFileDescription.h>
#include <Kernel/FileSystem/SysFS/Subsystems/Kernel/GlobalInformation.h>
#include <Kernel/Library/KBufferBuilder.h>
#include <Kernel/Library/KString.h>
#include <Kernel/Library/UserOrKernelBuffer.h>
#include <Kernel/Locking/Mutex.h>
#include <Kernel/Time/TimeManagement.h>
namespace Kernel {
class SysFSSystemStringVariable : public SysFSGlobalInformation {
protected:
explicit SysFSSystemStringVariable(SysFSDirectory const& parent_directory)
: SysFSGlobalInformation(parent_directory)
{
}
virtual ErrorOr<NonnullOwnPtr<KString>> value() const = 0;
virtual void set_value(NonnullOwnPtr<KString> new_value) = 0;
private:
// ^SysFSGlobalInformation
virtual ErrorOr<void> try_generate(KBufferBuilder&) override final;
// ^SysFSExposedComponent
virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override final;
virtual mode_t permissions() const override { return 0644; }
virtual ErrorOr<void> truncate(u64) override final;
};
}