[chuck-users] spork question

[Hans Aberg]

On 15 Aug 2009, at 22:25, Bozelos Dimitris wrote:

> I have encountered a behaviour in my adventures with ChucK that I  
> cannot really understand. Let's suppose the following classes:
...
> The function in StereoTEnvelope that I call with envelope.TFunction  
> proceeds as expected printing 'now' both before and after advancing  
> time. But the function that I spork prints only before and then quits.

Probably as soon as the main shred finishes, the program terminates,  
so all other shreds are killed off. This is the normal behavior for  
POSIX threads, anyway. So one must have the main thread/shred to wait  
for the others to finish. Since Chuck has perfect timing, it will  
suffice to add some time to the main shred. Like the code below.

   Hans


class TEnvelope
{
     fun void TFunction( int milliseconds )
     {
         <<< "before", now >>>;
         milliseconds::ms => now;
         <<< "after", now >>>;
     }
}

class StereoTEnvelope
{
     TEnvelope envelopeL;
     TEnvelope envelopeR;

     fun void TFunction( int milliseconds )
     {
         spork ~ envelopeL.TFunction( milliseconds );
         envelopeR.TFunction( milliseconds + 1 );
     }
}

class TTest
{
     StereoTEnvelope envelope;

     fun void TFunction( int milliseconds )
     {
         envelope.TFunction( milliseconds );
     }
}

( TTest tTest ).TFunction( 5000 );