External Plugin returning too quickly
Brad Fuller
brad at sonaural.com
Sun Nov 20 02:42:44 UTC 2005
The plugin that I'm creating seems to return too quickly. I have a
simple test that plays a sine wave and waits 5 seconds (using usleep).
The problem is that it stops the sine wave and returns in about a half a
second (I hear the sine wave but just a blip. And no errors from the
external code.) The code works fine outside of Squeak, but not called
from Squeak.
The plugin does 2 simple things:
* Starts a stream that calls a callback routine (below)
* The callback fills a buffer for the sine wave data and then returns
After waiting 5secs, the main line cleans up and exits.
Are there any particular issues with callbacks in Squeak? Do I need to
compile/link with anything special? It doesn't seem like this should be
a problem since Squeak is single-threaded. If anything, I would think
that the return would be slower not quicker. BTW, usleep returns w/o error.
Any ideas or pointers much appreciated!
brad
--
Brad Fuller
(408) 799-6124
** Sonaural Audio Studios **
(408) 799-6123 West San Jose
(408) 799-6124 Cambrian
________________________________
Hear us online: www.Sonaural.com
See me on O'Reilly: http://www.oreillynet.com/pub/au/2184
More information about the Vm-dev
mailing list