[asterisk-dev] pthread_getspecific() in app_voicemail

[Mark Sirota]

A recent version introduced new code to app_voicemail, using 
pthread_setspecific() and pthread_getspecific() to handle vm_state in some 
circumstances.

This code has introduced a bug -- sometimes pthread_getspecific() is called 
before pthread_setspecific().  It has been reported here in more detail:

<http://bugs.digium.com/view.php?id=14889>


I have a simple patch, involving setting a flag when calling 
pthread_setspecific() and checking it before calling pthread_getspecific(). 
However, I have no idea if this is the best approach, because I don't know 
why the pthread calls were introduced.

I can't find a report in the issue tracker related to this.  Can anyone 
tell me what problem the pthread code solves?

Thanks,

Mark
-- 
Mark Sirota, Associate Director, Network Engineering and Services
University of Pennsylvania, Information Systems and Computing
msirota at upenn.edu, +1 215 573 7214