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Re: [sc-users] how to tell when n_set messages have been executed



i solved the riddle, it's really just a stupidity. compare:

~synth = SynthDef( \test, {arg frequ=440; Out.ar( 0, SinOsc.ar (freq:frequ))}).play;
(
~bndlTime = 0.2;
Routine({ var resp;
resp = OSCpathResponder( s.addr, [ '/n_set', ~synth.nodeID ], { arg time, resp, msg; var value = msg[ 3 ];
		("freq is "++value).postln;
		if (value == ~new_freq, {
			~wait = false;
			"Synth control updated!".postln;
		}, {
			"Value is still %, continueing waiting...\n".postf( value );
		});
 }).add;
  100.do{ var bndl;
	~new_freq = rrand(400, 600);
         ~wait = true;
	s.sendBundle( ~bndlTime, ~synth.setMsg("frequ", ~new_freq) );
	while({~wait}, {
	    s.sendBundle( ~bndlTime, ~synth.getMsg( \frequ ));
	   0.05.wait;
	});
  };
  resp.remove;
}).play( SystemClock );
)

.... with:

(
~bndlTime = 0.2;
Routine({ var resp, cond;
  cond = Condition.new;
resp = OSCpathResponder( s.addr, [ '/n_set', ~synth.nodeID ], { arg time, resp, msg; var value = msg[ 3 ];
		("freq is "++value).postln;
		if (value == ~new_freq, {
			~wait = false;
			"Synth control updated!".postln;
		}, {
			"Value is still %, continueing waiting...\n".postf( value );
		});
		cond.test = true; cond.signal;
 }).add;
  100.do{ var bndl;
	~new_freq = rrand(400, 600);
         ~wait = true;
	s.sendBundle( ~bndlTime, ~synth.setMsg("frequ", ~new_freq) );
	while({~wait}, {
	    s.sendBundle( ~bndlTime, ~synth.getMsg( \frequ ));
	    cond.test = false; cond.wait;
	});
  };
  resp.remove;
}).play( SystemClock );
)

the mistake in the first version is: you are sending several s_get messages out for every new value of ~new_freq; hence although the algorithm is stepping forward, there are always a lot of obsolete queries coming back that are comparing the previously correct value to the now wrong value.

i was right, the new value is _immediately_ set:

~synth = SynthDef( \test, {arg frequ=440; Out.ar( 0, SinOsc.ar (freq:frequ))}).play;
(
~bndlTime = 0.05;
Routine({ var resp, cond;
  cond = Condition.new;
resp = OSCpathResponder( s.addr, [ '/n_set', ~synth.nodeID ], { arg time, resp, msg; var value = msg[ 3 ];
		("freq is "++value).postln;
		if (value == ~new_freq, {
			~wait = false;
			"Synth control updated!".postln;
		}, {
			"Value is still %, WRONG!! ...\n".postf( value );
		});
		cond.test = true; cond.signal;
 }).add;
  100.do{ var bndl;
	~new_freq = rrand(400, 600);
         ~wait = true;
         "Next freq is %\n".postf( ~new_freq );
s.sendBundle( ~bndlTime, ~synth.setMsg("frequ", ~new_freq), ~synth.getMsg( \frequ ) );
        cond.test = false; cond.wait;
  };
  resp.remove;
}).play( SystemClock );
)


woooooop.....

ciao, -sciss-


Am 29.07.2009 um 20:42 schrieb Sciss:

~synth = {arg frequ=440; SinOsc.ar(freq:frequ)}.play;

(
~bndlTime = 0.2;
Routine({
  ~wait = true;
  100.do{
	~new_freq = rrand(400, 600);
	s.makeBundle( ~bndlTime, { ~synth.set("frequ", ~new_freq) });
	("waiting for freq "++~new_freq).postln;
	while({~wait}, {
	  (s.options.blockSize*2/s.sampleRate).wait;
s.makeBundle( ~bndlTime, { ~synth.get(\frequ, { arg value; ("freq is "++value).postln;
		// has the synth been updated?
if (value == ~new_freq, {~wait = false;"Synth control updated!".postln}, {"waiting... ".postln});
	  })});
//	  0.0001.wait;
	});
	~wait = true;
  };
}).play( SystemClock );
)

Am 29.07.2009 um 20:20 schrieb James Harkins:

Since you're not timestamping your OSC messages, probably the actual execution time of the n_get is wrong.
hjh


On Wed, Jul 29, 2009 at 1:23 PM, Sciss <contact@xxxxxxxx> wrote:
totally strange. even if you initially wait _two_ control blocks, the reported value might still not have been updated:


~synth = {arg freq=440; SinOsc.ar(freq:freq)}.play;

(
Routine({

 ~wait = true;
 100.do{
       ~new_freq = rrand(400, 600);
       ~synth.set("freq", ~new_freq);
       ("waiting for freq "++~new_freq).postln;
       while({~wait}, {
         (s.options.blockSize*2/s.sampleRate).wait;

         ~synth.get(\freq, { arg value; ("freq is "++value).postln;
               // has the synth been updated?
if (value == ~new_freq, {~wait = false;"Synth control updated!".postln}, {"waiting... ".postln});
         });
//        0.0001.wait;
       });
       ~wait = true;
 };
}).play( SystemClock );
)

i.e. i still get "waiting..." here a lot. something with the server scheduling must be definitely be broken, i assume?

ciao, -sciss-



--
James Harkins /// dewdrop world
jamshark70@xxxxxxxxxxxxxxxxx
http://www.dewdrop-world.net

"Come said the Muse,
Sing me a song no poet has yet chanted,
Sing me the universal."  -- Whitman


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