Method Open

link/iter.go:70–81

Open creates a new instance of the iterator. Reading from the returned reader triggers the BPF program.

()

//
// Reading from the returned reader triggers the BPF program.
func (it *Iter) Open() (io.ReadCloser, error) {
	attr := &sys.IterCreateAttr{
		LinkFd: it.fd.Uint(),
	}

	fd, err := sys.IterCreate(attr)
	if err != nil {
		return nil, fmt.Errorf("can't create iterator: %w", err)
	}

	return fd.File("bpf_iter")
}

// union bpf_iter_link_info.map
type bpfIterLinkInfoMap struct {