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Refactor FS::find_parent_of_inode() into Inode::parent().

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This way, Ext2FSInode can cache its parent inode index. This makes absolute
path lookups dramatically faster.
SynthFSInode is also simplified greatly.
This commit is contained in:
Andreas Kling
2019-01-04 18:37:58 +01:00
parent 7731aef7b2
commit 0d36281162
6 changed files with 28 additions and 21 deletions
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12
VirtualFileSystem/SyntheticFileSystem.h
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@@ -16,7 +16,6 @@ public:
virtual InodeIdentifier root_inode() const override;
virtual RetainPtr<Inode> create_inode(InodeIdentifier parentInode, const String& name, Unix::mode_t, unsigned size, int& error) override;
virtual RetainPtr<Inode> create_directory(InodeIdentifier parentInode, const String& name, Unix::mode_t, int& error) override;
virtual InodeIdentifier find_parent_of_inode(InodeIdentifier) const override;
virtual RetainPtr<Inode> get_inode(InodeIdentifier) const override;
protected:
@@ -54,6 +53,7 @@ private:
virtual void flush_metadata() override;
virtual bool write(const ByteBuffer&) override;
virtual bool add_child(InodeIdentifier child_id, const String& name, byte file_type, int& error) override;
virtual RetainPtr<Inode> parent() const override;
SynthFS& fs();
const SynthFS& fs() const;
@@ -66,3 +66,13 @@ private:
Vector<SynthFSInode*> m_children;
InodeMetadata m_metadata;
};
inline SynthFS& SynthFSInode::fs()
{
return static_cast<SynthFS&>(Inode::fs());
}
inline const SynthFS& SynthFSInode::fs() const
{
return static_cast<const SynthFS&>(Inode::fs());
}