Vibe.d timer - change callback?

[FreeSlave]

On Tuesday, 25 August 2020 at 18:42:53 UTC, codic wrote:
> I'd like to be able to change the callback of a vibe.d Timer 
> (eg created with 
> http://vibe-core.dpldocs.info/v1.9.3/vibe.core.core.createTimer.html) after creation, something like:
>
> auto timer = createTimer();
> timer.rearm(duration, /*...*/);
> timer.callback = delegate {
>    // things
> }
>
> An alternative method would be to recreate the timer, like so:
>
> auto timer = createTimer();
> timer.rearm(duration, /*...*/);
> auto timer = createTimer();
> timer.rearm(duration - timer.elapsed);
>
> However, I can't find an `elapsed` property or similar in the 
> documentation.

I did not try it myself, but you can make an object which is 
accessible from both callback scope and outside scope. Depending 
on the state of the object it will call different functions. So 
if you want to change the callback in the meantime, you just 
change the state of the object.