Re: IO plugin and multiple poll descriptors

[Takashi Iwai <tiwai@suse.de>]

At Wed, 18 May 2005 15:45:11 +0200,
Marcel Holtmann wrote:
> 
> Hi Takashi,
> 
> > > > > What happens at the moment when I really return two poll_fd.
> > > 
> > > What about this one?
> > 
> > The poll_descriptors_count and poll_descriptors should return 2,
> > for example,
> > 
> > int my_poll_descriptors_count(snd_pcm_ioplug_t *io)
> > {
> > 	return 2;
> > }
> > 
> > int my_poll_descriptors(snd_pcm_ioplug_t *io, struct pollfd *pfds,
> > 	unsigned int space)
> > {
> > 	if (space < 2) {
> > 		error("Too little pfd\n");
> > 		return 0;
> > 	}
> > 	pfds[0].fd = fd0;
> > 	pfds[0].events = POLLOUT | POLLERR | POLLNVAL
> > 	pfds[1].fd = fd1;
> > 	pfds[0].events = POLLIN | POLLERR | POLLNVAL
> > 	return 2;
> > }
> 
> I know, but what I meant was if both descriptors are handled inside the
> library. Previous you said that multiple descriptors are not supported.
> Of did I understand that wrong?

Ah, yes I mentioned it.  Don't worry, it was fixed on CVS, too :)


Takashi


-------------------------------------------------------
This SF.Net email is sponsored by Oracle Space Sweepstakes
Want to be the first software developer in space?
Enter now for the Oracle Space Sweepstakes!
http://ads.osdn.com/?ad_id=7412&alloc_id=16344&op=click