mirror of
https://github.com/RGBCube/serenity
synced 2025-05-18 05:05:07 +00:00
0de8c95d49
This simplifies the DevPtsFS implementation somewhat, as it no longer requires SlavePTY to register itself with it, since it can now simply use the list of SlavePTY instances.
66 lines
2 KiB
C++
66 lines
2 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 NonnullRefPtr<DevPtsFS> create();
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virtual KResult 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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RefPtr<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 KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, FileDescription*) const override;
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virtual InodeMetadata metadata() const override;
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virtual KResult traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
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virtual KResultOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
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virtual void flush_metadata() override;
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virtual KResultOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, FileDescription*) override;
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virtual KResultOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, uid_t, gid_t) override;
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virtual KResult add_child(Inode&, const StringView& name, mode_t) override;
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virtual KResult remove_child(const StringView& name) override;
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virtual KResult chmod(mode_t) override;
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virtual KResult chown(uid_t, gid_t) 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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