[pjsip] unknown/external thread

Samuel Vinson samuelv at laposte.net
Wed May 14 18:30:11 EDT 2008

Hi Benny,

I tried your solution but the mailing archive on gmane begin from 
27/05/2005, and my search give me an interesting article from march 2007 :-(
And there is not cached version :-(

But I don't understand why pjsua give me this assertion, because all 
threads are created internally.

I made several test :
   - run pjlib-test, and for threads test I need to uncomment in 
thread_proc function to get successful result.
        //Must sleep if platform doesn't do time-slicing.

   - convert this code 
(http://blogs.sun.com/seongbae/entry/pthread_get_set_specific_vs) to 
pjlib. After pj_init call, I need to call pj_thread_local_alloc 
otherwise pj_thread_local_set failed.

   - if I run pjsua with null audio the assertion is not present.

So I tested to call in audio callback:
  if(!pj_thread_is_registered()) {
And assertion disappeared. But I think it's not optimal.


Benny Prijono a écrit :
> On Tue, May 13, 2008 at 8:27 AM, Samuel Vinson <samuelv at laposte.net> wrote:
>> Hi,
>>  I'm using the last version in trunk of pjsip.
>>  When I use pjsua I receive this assertion :
>>  Assertion failed: (!"Calling pjlib from unknown/external thread. You
>>  must " "register external threads with pj_thread_register() " "before
>>  calling any pjlib functions."), function pj_thread_this, file
>>  ../src/pj/os_core_unix.c, line 620.
>>  For information line 620: pj_thread_this() function
>>  I don't think this is a problem of pj_thread_register, but perhaps some
>>  pthread functions don't work correctly on Ipod/iphone.
>>  I think that the topic has already been discussed on the mailing list
>>  but I don't find when :-(
>>  What do you think ?
> Yep this has been discussed quite a number of times. Just do Google
> site search (the little text box on the top right corner of pjsip.org
> website) on pj_thread_register.
> Cheers
>  Benny
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