[PD-dev] allow only one instance of external object

[Claude Heiland-Allen]

best boy wrote:
> hi
> is there a way to keep track of the number of opened instances of an 
> external?

Is this an external you are writing?  Then yes.  Otherwise there's weird 
tricks you can probably do to keep track, but not control.

> if so, can anyone point me to an example object?

Just have a global counter variable that you initialise to 0 in 
foo_setup(), and in foo_new() you increment it, and in foo_free() you 
decrement it.

> thanks
> olli

Claude
-- 
http://claudiusmaximus.goto10.org