Re: [Ekiga-list] PTLIB alsa plugin status

[Alec Leamas <leamas alec gmail com>]

> Yes, the ptlib alsa driver needs to be reentrant.
>
>   
> One thread could attempt to close the audio device while a second 
> thread is reading/writing data from/to the alsa system. 
Just to sort his out for my simple mind,  trying to understand the 
overall requirements. And  with the idea that using threads is perfectly 
reasonable in this context :-)

- Let's focus on the playback case, leaving any read aside (which refer 
to a different alsa device).

- This should mean that while one thread  (A) is closing it's playback 
device, another thread (B) starts writing to it.

- Which means that thread B has been able to open the device before 
thread A finished closing it(?)

- Which means that I am a little confused... is this as designed? What 
am I missing?

--a