[dmd-concurrency] draft 4

[Kevin Bealer]

In this line from 'main()', I think 'message' here is a cut n' paste
stowaway?

writeln("Main thread: ", message, i);

Kevin

On Tue, Jan 12, 2010 at 3:45 AM, Andrei Alexandrescu <andrei at erdani.com>wrote:

> To be found at the usual location:
>
> http://erdani.com/d/fragment.preview.pdf
>
> I didn't add a lot of text this time around but I do have a full example of
> communicating threads. Skip to the last section for explanation. I paste the
> code below. I think it looks pretty darn cool. Sean, please let me know if
> it floats your boat.
>
> import std.concurrency, std.stdio;
>
> void main() {
>   auto low = 0, high = 1000;
>   auto tid = spawn(&fun);
>   foreach (i; low .. high) {
>      writeln("Main thread: ", message, i);
>      tid.send(thisTid, i);
>      enforce(receiveOnly!Tid() == tid);
>   }
>   // Signal the other thread
>   tid.send(Tid(), 0);
> }
>
> void fun() {
>   for (;;) {
>      auto msg = receiveOnly!(Tid, int)();
>      if (!msg[0]) return;
>      writeln("Secondary thread: ", msg[1]);
>      msg[0].send(thisTid);
>   }
> }
>
>
> Andrei
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