func (c *qCmd) start(txt string) error { c.Lock() if c.ctx != nil { c.Unlock() return fmt.Errorf("%s: one cmd is enough", c) } c.txt = txt var in chan interface{} if c.in.Len() > 0 { c.in.c = make(chan interface{}, len(c.in.msgs)) for _, m := range c.in.msgs { c.in.c <- m } close(c.in.c) in = c.in.c } outfn := func(c *qCmd, io *qIO, outc chan interface{}) { for m := range outc { c.Lock() io.addOut(m) c.Unlock() } io.eof = true io.wakeup() } out := make(chan interface{}) go outfn(c, c.out, out) err := make(chan interface{}) go outfn(c, c.err, err) c.e.runc <- func() { c.ctx = app.Go(func() { c.Unlock() app.DupDot() app.DupEnv() app.NewIO(nil) app.SetIO(in, 0) app.SetIO(out, 1) app.SetIO(err, 2) ql.Run() }, "ql", "-c", c.txt) } return nil }
// runs here func runNew(x *xEnv, argv ...string) error { opts := opt.New("dup") app.Dprintf("dup %v\n", argv) args, err := opts.Parse(argv) if err != nil { opts.Usage() return dbg.ErrUsage } for _, arg := range args { switch arg { case "ns": app.NewNS(nil) case "io": app.NewIO(nil) case "env": app.NewEnv(nil) case "dot": app.NewDot("") default: app.Warn("unknown resource '%s'", arg) } } return nil }