[chuck-users] osc listener shred woes

[dan trueman]

there is a known bug with OSC receiving on multiple ports, which may  
account for this. it's been reported:

http://wiki.cs.princeton.edu/index.php/OSC_multiple_port_bug

dt

On Apr 28, 2008, at 2:47 AM, mike clemow wrote:

> Hello all,
>
> So, the following code sporks out two shreds to listen for two (for
> now--I want to be using 14) OSC messages, put their int values into an
> event and report back to the parent shred with the value and the
> address.  This is supposed to be a way to get around the fact that,
>
> a) I seem to have to listen on a different port if the OSC messages
> have the same type,
> b) that I can't wait on multiple events and,
> c) that I want all the values to control parameters in a single patch.
>
> My OSC messages are being lobbed at Chuck via a Python script and
> everything seems to be working fine on that end.  I've even gotten
> this to work using two chuck shreds that were manually sporked.  At
> any rate, this code runs fine for about two seconds and then dies in
> either a segmentation fault or a bus error.
>
> Any guesses?
>
> ---
> // extend the Event class
> class Bang extends Event {
>     string message;
>     int value;
> }
>
> // a generic osc listener shred
> fun void oscListener( Bang b, int port, string osctype ) {
>     // create our OSC receiver
>     OscRecv recv;
>     port => recv.port;
>     recv.listen();
>
>     // create an address in the receiver, store in new variable
>     recv.event( osctype ) @=> OscEvent oe;
>
>     while( true ) {
>         // wait for osc event to arrive
>         oe => now;
>
>         while( oe.nextMsg() ) {
>             oe.getInt() => b.value;
>             osctype => b.message;
>             b.broadcast();
>         }
>     }
> }
>
> // our event "Bang"
> Bang bang;
> 8000 => int oscport;
>
> // the types for the osc objects
> "/leftraw, i" => string leftraw;
> "/leftavg, i" => string leftavg;
>
> spork ~ oscListener( bang, oscport, leftraw );
> // shreds are usually happier listening on a separate port
> spork ~ oscListener( bang, oscport + 1, leftavg );
>
> SinOsc raw => dac;
> SinOsc avg => dac;
>
> while( true ) {
>     bang => now;
>     //<<<bang.message, bang.value>>>;
>     if( bang.message == leftraw ) {
>         bang.value => raw.freq;
>     }
>     else if( bang.message == leftavg ) {
>         bang.value => avg.freq;
>     }
> }
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