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https://github.com/RGBCube/serenity
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3b03077abb
Because the ".." entry in a directory is a separate inode, if a directory is renamed to a new location, then we should update this entry the point to the new parent directory as well. Co-authored-by: Liav A <liavalb@gmail.com>
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
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* Copyright (c) 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/Atomic.h>
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#include <Kernel/FileSystem/Inode.h>
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#include <Kernel/FileSystem/Plan9FS/FileSystem.h>
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#include <Kernel/FileSystem/Plan9FS/Message.h>
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#include <Kernel/KBufferBuilder.h>
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namespace Kernel {
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class Plan9FSInode final : public Inode {
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friend class Plan9FS;
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public:
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virtual ~Plan9FSInode() override;
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u32 fid() const { return index().value(); }
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// ^Inode
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virtual InodeMetadata metadata() const override;
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virtual ErrorOr<void> flush_metadata() override;
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virtual ErrorOr<void> traverse_as_directory(Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
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virtual ErrorOr<NonnullLockRefPtr<Inode>> lookup(StringView name) override;
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virtual ErrorOr<NonnullLockRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
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virtual ErrorOr<void> add_child(Inode&, StringView name, mode_t) override;
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virtual ErrorOr<void> remove_child(StringView name) override;
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virtual ErrorOr<void> replace_child(StringView name, Inode& child) 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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virtual ErrorOr<void> truncate(u64) override;
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private:
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// ^Inode
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virtual ErrorOr<size_t> read_bytes_locked(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
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virtual ErrorOr<size_t> write_bytes_locked(off_t, size_t, UserOrKernelBuffer const& data, OpenFileDescription*) override;
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Plan9FSInode(Plan9FS&, u32 fid);
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static ErrorOr<NonnullLockRefPtr<Plan9FSInode>> try_create(Plan9FS&, u32 fid);
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enum class GetAttrMask : u64 {
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Mode = 0x1,
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NLink = 0x2,
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UID = 0x4,
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GID = 0x8,
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RDev = 0x10,
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ATime = 0x20,
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MTime = 0x40,
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CTime = 0x80,
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Ino = 0x100,
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Size = 0x200,
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Blocks = 0x400,
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BTime = 0x800,
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Gen = 0x1000,
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DataVersion = 0x2000,
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Basic = 0x7ff,
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All = 0x3fff
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};
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enum class SetAttrMask : u64 {
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Mode = 0x1,
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UID = 0x2,
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GID = 0x4,
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Size = 0x8,
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ATime = 0x10,
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MTime = 0x20,
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CTime = 0x40,
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ATimeSet = 0x80,
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MTimeSet = 0x100
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};
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// Mode in which the file is already open, using SerenityOS constants.
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int m_open_mode { 0 };
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ErrorOr<void> ensure_open_for_mode(int mode);
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Plan9FS& fs() { return reinterpret_cast<Plan9FS&>(Inode::fs()); }
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Plan9FS& fs() const
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{
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return const_cast<Plan9FS&>(reinterpret_cast<Plan9FS const&>(Inode::fs()));
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}
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};
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}
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