Thread/Task cancellation

[Gjiergji]

On Friday, 28 July 2023 at 20:13:24 UTC, Ruby The Roobster wrote:

> This is the only way I could think of doing this, since 
> exceptions don't travel up the threads.

Thank you for pointing me in the right direction. I think that 
exceptions are not really necessary in D for cancellation, as I 
said, the code above was idiomatic C#.

Finally I come up with this code to achieve the same:

```d
     void longRunningThread()
     {
        while (true)
        {
             if (receiveTimeout(3000.msecs, (bool cancel)  {}))
             {
                 writeln("Cancelled");
                 break;
             }
             else
             {
                 //do some work
                 writeln("Another 3 seconds passed");
             }
        }
     }

     int main()
     {
         writeln("Press Enter to stop");
         auto tid = spawn(&longRunningThread);
         readln();
         tid.send(true); //here we cancel
         writeln("Press Enter to exit");
         readln();
         return 0;
     }

```

Maybe someone add such examples to 
https://wiki.dlang.org/Programming_in_D_for_CSharp_Programmers 
which is anyway totally outdated.