Is it possible that csoundReset() is not
closing the MIDI (and perhaps the rt audio)
module?

David Akbari's problems with tclcsound (cstclsh),
seem to indicate that something is no quite
right there. He says that a second compilation
(after csStop, which calls csoundReset()) fails
because MIDI cannot be initialised (and the
audio interface seems also to still be open).

Of course, I could implement csStop with a full
clean-up using csoundDestroy() and then
csoundCreate(), but I suppose that it is not
how the API should be used, is it? From the
description of csoundReset(), we should supposedly
be able to run any number of compilations on the
same instance of CSOUND, by calling it.

I cannot test MIDI at the moment, because I am out
of the office and with no external hardware. But
perhaps Istvan can have a look at the csound library
code and re-assure me that all is correct on that
side, so I can look for other reasons for this
problem.

Victor


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On Nov 1, 2005, at 8:59 AM, Victor Lazzarini wrote:

> David Akbari's problems with tclcsound (cstclsh),
> seem to indicate that something is no quite
> right there. He says that a second compilation
> (after csStop, which calls csoundReset()) fails
> because MIDI cannot be initialised (and the
> audio interface seems also to still be open).

It may also be worth noting that simply exiting and restarting the TCL 
interpreter fixes it! That's been my interim solution :)


-David



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Victor Lazzarini wrote:

> Of course, I could implement csStop with a full
> clean-up using csoundDestroy() and then
> csoundCreate(), but I suppose that it is not
> how the API should be used, is it? From the
> description of csoundReset(), we should supposedly
> be able to run any number of compilations on the
> same instance of CSOUND, by calling it.

csoundCleanup() should close the devices, and csoundReset() also
unloads the plugin libraries and in the case of PortMidi,
Pm_Terminate() is called as well. csoundDestroy() basically only
differs from reset in that it also deallocates the CSOUND structure.
It may be possible that PortMidi cannot be initialized more than
once on the Mac, in which case we probably need to write a native
driver (there are already MIDI drivers for ALSA and Windows MME).


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