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Forum index » DIY Hardware and Software » ChucK programming language

How do I refresh a shred, keeping a value without crashing?

Moderators: Kassen
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Dr. Spankenstein

Joined: Mar 03, 2007
Posts: 136
Location: Cambridge
Audio files: 1

Posted: Mon Jan 21, 2008 5:33 am Post subject: How do I refresh a shred, keeping a value without crashing?

I've simplified the process as much as I can to demonstrate what I'm aiming for.

The idea is that I have to refresh a shred every so often as to avoid garbage errors.

Whilst this method works fine, it no longer works when I try to introduce a function that gets the last known value of a variable when the shred is refreshed (e.g. machine.removed then sporked)

Class.txt

Code:

public class Hello
{
static int ValueRefresh;
public static int setValueRefresh(int input)
{
input => ValueRefresh;
}
public static int getValueRefresh()
{
return ValueRefresh;
}
}

Hello hello;
Machine.add( "Refresh.txt" ) => int refresh;

while(true)
{
10::minute => now;
}

Refresh.txt

Code:

Hello hello;
hello.getValueRefresh() => int x;
x + 10 => int y;

spork ~ refreshing() @=> Shred @ refreshingDestroy;
printx();

fun void printx()
{
while(x < y)
{
   <<<x>>>;
   1::second => now;
}
Machine.add( "refresh.txt" ) => int refresh;
me.exit();
}

fun void refreshing()
{
while(true)
{
   x++;
   hello.setValueRefresh(x);
   0.1::second => now;
}
}

This method will always crash ChucK and I'm not sure how to prevent that other than syncing the two times together (e.g. both printx() and refreshing() use 1::second => now)?! This isnt ideal.

Any ideas anyone?

Thanks,

Rhys

PS. On a side note, how can I parse a string as an integer. In other words cast a string "23" to an integer of value 23?

Moderators: Kassen
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