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Add CoreInode::lookup() for directory lookups.

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Also add a name-to-inode lookup cache to Ext2Inode. This seems like a great
speedup for filesystem traversal.
This commit is contained in:
Andreas Kling 2018-11-15 16:34:36 +01:00
parent 8fa2d7104a
commit 5f434bc00b
7 changed files with 48 additions and 18 deletions
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2
VirtualFileSystem/Ext2FileSystem.h
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@ -25,6 +25,7 @@ private:
virtual Unix::ssize_t read_bytes(Unix::off_t, Unix::size_t, byte* buffer, FileDescriptor*) override;
virtual void populate_metadata() const override;
virtual bool traverse_as_directory(Function<bool(const FileSystem::DirectoryEntry&)>) override;
virtual InodeIdentifier lookup(const String& name) override;
Ext2FileSystem& fs();
const Ext2FileSystem& fs() const;
@ -32,6 +33,7 @@ private:
SpinLock m_lock;
Vector<unsigned> m_block_list;
HashMap<String, unsigned> m_child_cache;
ext2_inode m_raw_inode;
};