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https://github.com/SerenityOS/serenity
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a91589c09b
The ProcFS is an utter mess currently, so let's start move things that are not related to processes-info. To ensure it's done in a sane manner, we start by duplicating all /proc/ global nodes to the /sys/kernel/ directory, then we will move Userland to use the new directory so the old directory nodes can be removed from the /proc directory.
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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/CircularQueue.h>
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#include <AK/Vector.h>
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#include <Kernel/Devices/CharacterDevice.h>
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namespace Kernel {
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extern Spinlock g_console_lock;
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class ConsoleDevice final : public CharacterDevice {
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friend class DeviceManagement;
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public:
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static NonnullLockRefPtr<ConsoleDevice> must_create();
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virtual ~ConsoleDevice() override;
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// ^CharacterDevice
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virtual bool can_read(Kernel::OpenFileDescription const&, u64) const override;
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virtual bool can_write(Kernel::OpenFileDescription const&, u64) const override { return true; }
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virtual ErrorOr<size_t> read(OpenFileDescription&, u64, Kernel::UserOrKernelBuffer&, size_t) override;
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, Kernel::UserOrKernelBuffer const&, size_t) override;
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virtual StringView class_name() const override { return "Console"sv; }
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void put_char(char);
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CircularQueue<char, 16384> const& logbuffer() const { return m_logbuffer; }
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private:
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ConsoleDevice();
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CircularQueue<char, 16384> m_logbuffer;
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};
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}
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