Waiting for a Spawn'ed process

[Sharad Gupta]

> If you start the worker with spawnLinked then you will receive 
> a LinkTerminated message.
>
> import std.stdio;
> import std.concurrency;
> import core.thread;
>
> void main()
> {
>     auto worker = spawnLinked(&workerFunc);
>
>     // Wait for worker to terminate
>     bool terminated = false;
>     while (!terminated) {
>         writeln("Waiting for the worker to terminate...");
>
>         terminated = receiveTimeout(1.seconds,
>             (LinkTerminated e) {
>                 if (e.tid == worker) {
>                     writefln("Terminated");
>                 }
>             }
>         );
>     }
> }
>
> void workerFunc()
> {
>     Thread.sleep(3.seconds);
> }
>
> Ali

But this is another spawned process. How can I tell this second 
process to wait on the first one.

eg:

auto processA = spawnLinked(funcA);
auto processB = spawnLinked(funcB);

funcA()
{
   doSomething();
}

funcB()
{
   doSomething();
   // wait for A
   doSomethingElse();
}

This is a simplified example, the real case two process would be 
spawned irrespective to each other. the second process could may 
also be launched by when the first is already done.