mirror of
https://github.com/SerenityOS/serenity
synced 2024-10-03 22:54:55 +00:00
939600d2d4
"Wherever applicable" = most places, actually :^), especially for networking and filesystem timestamps. This includes changes to unzip, which uses DOSPackedTime, since that is changed for the FAT file systems.
86 lines
3.9 KiB
C++
86 lines
3.9 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/HashMap.h>
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#include <Kernel/FileSystem/Ext2FS/Definitions.h>
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#include <Kernel/FileSystem/Ext2FS/DirectoryEntry.h>
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#include <Kernel/FileSystem/Ext2FS/FileSystem.h>
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#include <Kernel/FileSystem/Inode.h>
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#include <Kernel/UnixTypes.h>
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namespace Kernel {
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class Ext2FSInode final : public Inode {
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friend class Ext2FS;
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public:
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virtual ~Ext2FSInode() override;
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u64 size() const;
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bool is_symlink() const { return Kernel::is_symlink(m_raw_inode.i_mode); }
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bool is_directory() const { return Kernel::is_directory(m_raw_inode.i_mode); }
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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 InodeMetadata metadata() const 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<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_locked(off_t, size_t, UserOrKernelBuffer const& data, 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& child, 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> update_timestamps(Optional<UnixDateTime> atime, Optional<UnixDateTime> ctime, Optional<UnixDateTime> mtime) override;
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virtual ErrorOr<void> increment_link_count() override;
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virtual ErrorOr<void> decrement_link_count() 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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virtual ErrorOr<int> get_block_address(int) override;
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ErrorOr<void> write_directory(Vector<Ext2FSDirectoryEntry>&);
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ErrorOr<void> populate_lookup_cache();
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ErrorOr<void> resize(u64);
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ErrorOr<void> write_indirect_block(BlockBasedFileSystem::BlockIndex, Span<BlockBasedFileSystem::BlockIndex>);
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ErrorOr<void> grow_doubly_indirect_block(BlockBasedFileSystem::BlockIndex, size_t, Span<BlockBasedFileSystem::BlockIndex>, Vector<BlockBasedFileSystem::BlockIndex>&, unsigned&);
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ErrorOr<void> shrink_doubly_indirect_block(BlockBasedFileSystem::BlockIndex, size_t, size_t, unsigned&);
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ErrorOr<void> grow_triply_indirect_block(BlockBasedFileSystem::BlockIndex, size_t, Span<BlockBasedFileSystem::BlockIndex>, Vector<BlockBasedFileSystem::BlockIndex>&, unsigned&);
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ErrorOr<void> shrink_triply_indirect_block(BlockBasedFileSystem::BlockIndex, size_t, size_t, unsigned&);
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ErrorOr<void> flush_block_list();
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ErrorOr<void> compute_block_list_with_exclusive_locking();
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ErrorOr<Vector<BlockBasedFileSystem::BlockIndex>> compute_block_list() const;
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ErrorOr<Vector<BlockBasedFileSystem::BlockIndex>> compute_block_list_with_meta_blocks() const;
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ErrorOr<Vector<BlockBasedFileSystem::BlockIndex>> compute_block_list_impl(bool include_block_list_blocks) const;
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ErrorOr<Vector<BlockBasedFileSystem::BlockIndex>> compute_block_list_impl_internal(ext2_inode const&, bool include_block_list_blocks) const;
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Ext2FS& fs();
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Ext2FS const& fs() const;
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Ext2FSInode(Ext2FS&, InodeIndex);
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Vector<BlockBasedFileSystem::BlockIndex> m_block_list;
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HashMap<NonnullOwnPtr<KString>, InodeIndex> m_lookup_cache;
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ext2_inode m_raw_inode {};
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Mutex m_block_list_lock { "BlockList"sv };
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};
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inline Ext2FS& Ext2FSInode::fs()
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{
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return static_cast<Ext2FS&>(Inode::fs());
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}
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inline Ext2FS const& Ext2FSInode::fs() const
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{
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return static_cast<Ext2FS const&>(Inode::fs());
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}
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}
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