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Kernel: Add DirectoryEntryView for VFS directory traversal

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Unlike DirectoryEntry (which is used when constructing directories),
DirectoryEntryView does not manage storage for file names. Names are
just StringViews.

This is much more suited to the directory traversal API and makes
it easier to implement this in file system classes since they no
longer need to create temporary name copies while traversing.
This commit is contained in:
Andreas Kling 2020-08-18 12:41:27 +02:00
parent 8abf5048b8
commit eeaba41d13
16 changed files with 61 additions and 53 deletions
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2
Kernel/FileSystem/Ext2FileSystem.h
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@ -59,7 +59,7 @@ private:
// ^Inode
virtual ssize_t read_bytes(off_t, ssize_t, u8* buffer, FileDescription*) const override;
virtual InodeMetadata metadata() const override;
virtual KResult traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
virtual KResult traverse_as_directory(Function<bool(const FS::DirectoryEntryView&)>) const override;
virtual RefPtr<Inode> lookup(StringView name) override;
virtual void flush_metadata() override;
virtual ssize_t write_bytes(off_t, ssize_t, const u8* data, FileDescription*) override;