serenity/Kernel/FileSystem/SysFS/Inode.h
sin-ack 3b03077abb Kernel: Update the ".." inode for directories after a rename
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>
2022-11-25 17:33:05 +01:00

46 lines
2 KiB
C++

/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/FileSystem/Inode.h>
#include <Kernel/FileSystem/SysFS/Component.h>
#include <Kernel/FileSystem/SysFS/FileSystem.h>
namespace Kernel {
class SysFSInode : public Inode {
friend class SysFS;
friend class SysFSDirectoryInode;
public:
static ErrorOr<NonnullLockRefPtr<SysFSInode>> try_create(SysFS const&, SysFSComponent const&);
StringView name() const { return m_associated_component->name(); }
protected:
SysFSInode(SysFS const&, SysFSComponent const&);
virtual ErrorOr<size_t> read_bytes_locked(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual ErrorOr<void> traverse_as_directory(Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullLockRefPtr<Inode>> lookup(StringView name) override;
virtual ErrorOr<void> flush_metadata() override;
virtual InodeMetadata metadata() const override;
virtual ErrorOr<size_t> write_bytes_locked(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) override;
virtual ErrorOr<NonnullLockRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> add_child(Inode&, StringView name, mode_t) override;
virtual ErrorOr<void> remove_child(StringView name) override;
virtual ErrorOr<void> replace_child(StringView name, Inode& child) override;
virtual ErrorOr<void> chmod(mode_t) override;
virtual ErrorOr<void> chown(UserID, GroupID) override;
virtual ErrorOr<void> truncate(u64) override;
virtual ErrorOr<void> update_timestamps(Optional<Time> atime, Optional<Time> ctime, Optional<Time> mtime) override;
virtual ErrorOr<void> attach(OpenFileDescription& description) override final;
virtual void did_seek(OpenFileDescription&, off_t) override final;
NonnullLockRefPtr<SysFSComponent> m_associated_component;
};
}