Nice pause/resume. I'll need to remember this.
On Mon, Apr 3, 2023 at 3:14 AM Rob Pike <r...@golang.org> wrote:
>
> Here's an excerpt from a piece of concurrent code I like, an unpublished
> interactive game of life. The select near the bottom has only two cases but
> it is perhaps instructive. I leave its analysis to the reader.
>
> -rob
>
>
> var kbdC chan of rune = ... // events from keyboard
> var ticker = time.NewTicker(*deltaTFlag)
> ...
> pauseC := make(chan int)
> go func() {
> for {
> switch <-kbdC {
> case 'q':
> os.Exit(0)
> case ' ':
> pauseC <- 1
> }
> }
> }()
>
> gen := 0
> for gen = 1; ; gen++ {
> b.draw(display, *cellSizeFlag)
> changed := b.step()
> if !changed {
> break
> }
> select {
> case <-ticker.C:
> case <-pauseC:
> <-pauseC
> }
> }
> fmt.Fprintln(os.Stderr, "stable after", gen, "generations")
> select {}
> }
>
> --
> You received this message because you are subscribed to the Google Groups
> "golang-nuts" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to golang-nuts+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/golang-nuts/CAOXNBZS11bKz%2B95gUXstgHHrgDRFoTWdm5kmNBriDpoxNz%3DWXQ%40mail.gmail.com.
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/golang-nuts/CAJSxfmKsgSgfxzUYa77V1Ry%2Bo1Z9v6_hXY1Ank22y-SY%3Dc82gg%40mail.gmail.com.
