func cmdread(ns *g9pc.Ns, s []string) {
sq, results := seq.NewSequencer()
go func() {
r := <-results // walk result
r = <-results // open result
r = <-results // readstream result
_, ok := <-results
if ok {
panic("expected closed")
}
}()
f := ns.SeqWalk(sq, s[0])
sq.Do(f.File(), seq.OpenReq{g9p.OREAD})
rd := f.SeqReadStream(sq, 200, 20)
buf := make([]byte, 10)
for {
n, err := rd.Read(buf)
if n == 0 {
fmt.Fprintf(os.Stderr, "read error: %v\n", err)
break
}
fmt.Printf("%q\n", buf[0:n])
}
rd.Close()
sq.Do(f.File(), seq.ClunkReq{}) // strictly speaking unnecessary.
sq.Do(nil, nil)
sq.Wait()
}
