func listener(ctx context.Context, frameSize int, addr string) error {
ln, err := net.Listen("tcp", addr)
if err != nil {
fmt.Fprintf(os.Stderr, "net.Listen(%q): %s\n", addr, err.Error())
return err
}
go func() {
<-ctx.Done()
ln.Close()
}()
c, err := ln.Accept()
if err != nil {
fmt.Fprintf(os.Stderr, "ln.Accept(): %s\n", err.Error())
return err
}
fc := fnet.FromOrderedStream(c, frameSize)
go func() {
<-ctx.Done()
fc.Close()
}()
if err = clockstation.Run(ctx, fc, time.Tick(50*time.Millisecond)); err != nil {
return fmt.Errorf("clockstation.Run: %s\n", err.Error())
}
return nil
}
func dialer(ctx context.Context, frameSize int, addr string) error {
c, err := net.Dial("tcp", addr)
if err != nil {
fmt.Fprintf(os.Stderr, "net.Dial(%q): %s\n", addr, err.Error())
return err
}
fc := fnet.FromOrderedStream(c, frameSize)
go func() {
<-ctx.Done()
fc.Close()
}()
if err = clockprinter.Run(ctx, fc); err != nil {
fmt.Errorf("clockprinter.Run: %s\n", err.Error())
}
return nil
}
func dialer(ctx context.Context, frameSize int, numStreams int, addr string) error {
rr := fnet.NewRoundRobin(frameSize)
go func() {
<-ctx.Done()
rr.Close()
}()
for i := 0; i < numStreams; i++ {
c, err := net.Dial("tcp", addr)
if err != nil {
fmt.Fprintf(os.Stderr, "net.Dial(%q): %s\n", addr, err.Error())
return err
}
fs := fnet.FromOrderedStream(c, frameSize)
rr.AddConn(fs)
}
fc := fnet.FrameConn(rr)
if err := clockprinter.Run(ctx, fc); err != nil {
fmt.Errorf("clockprinter.Run: %s\n", err.Error())
}
return nil
}