mirror of
https://github.com/RGBCube/serenity
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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. :^)
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@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/Types.h>
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#include <Kernel/FileSystem/FileSystem.h>
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#include <Kernel/FileSystem/Inode.h>
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namespace Kernel {
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class SlavePTY;
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class DevPtsFSInode;
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class DevPtsFS final : public FileSystem {
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friend class DevPtsFSInode;
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public:
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virtual ~DevPtsFS() override;
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static ErrorOr<NonnullRefPtr<DevPtsFS>> try_create();
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virtual ErrorOr<void> initialize() override;
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virtual StringView class_name() const override { return "DevPtsFS"sv; }
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virtual Inode& root_inode() override;
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private:
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DevPtsFS();
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ErrorOr<NonnullRefPtr<Inode>> get_inode(InodeIdentifier) const;
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RefPtr<DevPtsFSInode> m_root_inode;
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};
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class DevPtsFSInode final : public Inode {
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friend class DevPtsFS;
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public:
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virtual ~DevPtsFSInode() override;
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DevPtsFS& fs() { return static_cast<DevPtsFS&>(Inode::fs()); }
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DevPtsFS const& fs() const { return static_cast<DevPtsFS const&>(Inode::fs()); }
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private:
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DevPtsFSInode(DevPtsFS&, InodeIndex, SlavePTY*);
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// ^Inode
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virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
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virtual InodeMetadata metadata() const override;
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virtual ErrorOr<void> traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
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virtual ErrorOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
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virtual ErrorOr<void> flush_metadata() override;
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virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, OpenFileDescription*) override;
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virtual ErrorOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
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virtual ErrorOr<void> add_child(Inode&, const StringView& name, mode_t) override;
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virtual ErrorOr<void> remove_child(const StringView& name) override;
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virtual ErrorOr<void> chmod(mode_t) override;
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virtual ErrorOr<void> chown(UserID, GroupID) override;
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WeakPtr<SlavePTY> m_pty;
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InodeMetadata m_metadata;
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};
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}
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