Method Create

cmd/mount2/node.go:350–384

Create is similar to Lookup, but should create a new child. It typically also returns a FileHandle as a reference for future reads/writes. Default is to return EROFS.

(ctx context.Context, name string, flags uint32, mode uint32, out *fuse.EntryOut)

// reference for future reads/writes.
// Default is to return EROFS.
func (n *Node) Create(ctx context.Context, name string, flags uint32, mode uint32, out *fuse.EntryOut) (node *fusefs.Inode, fh fusefs.FileHandle, fuseFlags uint32, errno syscall.Errno) {
	defer log.Trace(n, "name=%q, flags=%#o, mode=%#o", name, flags, mode)("node=%v, fh=%v, flags=%#o, errno=%v", &node, &fh, &fuseFlags, &errno)
	dir, ok := n.node.(*vfs.Dir)
	if !ok {
		return nil, nil, 0, syscall.ENOTDIR
	}
	// translate the fuse flags to os flags
	osFlags := int(flags) | os.O_CREATE
	file, err := dir.Create(name, osFlags)
	if err != nil {
		return nil, nil, 0, translateError(err)
	}
	handle, err := file.Open(osFlags)
	if err != nil {
		return nil, nil, 0, translateError(err)
	}
	fh = newFileHandle(handle, n.fsys)
	// FIXME
	// fh = &fusefs.WithFlags{
	// 	File: fh,
	// 	//FuseFlags: fuse.FOPEN_NONSEEKABLE,
	// 	OpenFlags: flags,
	// }

	// Find the created node
	vfsNode, errno := n.lookupVfsNodeInDir(name)
	if errno != 0 {
		return nil, nil, 0, errno
	}
	n.fsys.setEntryOut(vfsNode, out)
	newNode := newNode(n.fsys, vfsNode)
	fs.Debugf(nil, "attr=%#v", out.Attr)
	newInode := n.NewInode(ctx, newNode, fusefs.StableAttr{Mode: out.Attr.Mode})
	return newInode, fh, 0, 0
}

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