At Mon, 25 May 2009 20:39:45 +0200 (CEST), Jaroslav Kysela wrote: > > On Mon, 25 May 2009, Takashi Iwai wrote: > > > At Mon, 25 May 2009 20:27:14 +0200, > > Werner Van Belle wrote: > >> > >> Takashi Iwai wrote: > >>> You can control it via fcntl(). See fcntl(2) man page. > >>> > >> I looked at that but I didn't find any place in alsalib (or libalsa > >> whatever the order of those two words), where I can obtain the file > >> handle. They are all of type pcm_something_t. I found a file handle > >> quite deep in this library but there seems no way to actually obtain > >> that handle. > > > > OK, I see the problem now, too. In practice, you can get a file > > descriptor from poll descriptor, but this doesn't cover all underlying > > fds. A new API function or an additional SND_PCM_* flag for > > snd_pcm_open() would be needed, indeed. > > The question is if it's not better to free also allocated memory > associated to the pcm handle in child process - so snd_pcm_close() > call in child is not a bad idea. OK, in a case without exec, we need an explicit call. But I guess snd_pcm_close() isn't appropriate (as Werner experienced) since it calls snd_pcm_drop() there. I guess this call isn't needed as the driver itself takes care? Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
