Method Lookup

cmd/mount2/node.go:191–205

Lookup should find a direct child of a directory by the child's name. If the entry does not exist, it should return ENOENT and optionally set a NegativeTimeout in `out`. If it does exist, it should return attribute data in `out` and return the Inode for the child. A new inode can be created using `

(ctx context.Context, name string, out *fuse.EntryOut)

// children in directories. Hence, they also return *Inode and must
// populate their fuse.EntryOut arguments.
func (n *Node) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (inode *fusefs.Inode, errno syscall.Errno) {
	defer log.Trace(n, "name=%q", name)("inode=%v, attr=%v, errno=%v", &inode, &out, &errno)
	vfsNode, errno := n.lookupVfsNodeInDir(name)
	if errno != 0 {
		return nil, errno
	}
	newNode := newNode(n.fsys, vfsNode)

	// FIXME
	// out.SetEntryTimeout(dt time.Duration)
	// out.SetAttrTimeout(dt time.Duration)
	n.fsys.setEntryOut(vfsNode, out)

	return n.NewInode(ctx, newNode, fusefs.StableAttr{Mode: out.Attr.Mode}), 0
}

var _ = (fusefs.NodeLookuper)((*Node)(nil))