On Thu, Feb 05, 2009 at 02:02:43PM -0800, Pinball wrote:

> I don't think it's up to the "user" to handle the lock. 
> I wouldn't make a Channel Ptr available either.
> I would export a function called
> 
> res_type csoundSetParameter (param_name_type, param_value_type);
> 
> The locking will be handled internally, like this...
> 
> ... csoundSetParameter...
> {
>     LOCK();
> 
>     //...
> 
>     UNLOCK();
> }

Which would mean a lot of back-to-back UNLOCK();LOCK() pairs
if a users want to modifiy not one but a set of parameters,
each pair potentially being two system calls.

A decent API should provide both the low-level access
and let the user be responsible for using it correctly,
and some safer higher level calls.

Ciao,

-- 
FA

Laboratorio di Acustica ed Elettroacustica
Parma, Italia

O tu, che porte, correndo si ?
E guerra e morte !

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