Re: cleanup handlers and sem_wait ....

[webmyster at laposte dot net]

Jakub Jelinek wrote:

> On Tue, Mar 22, 2005 at 03:03:14PM +0100, webmyster@laposte.net wrote:
>  
>
> > I have a problem with cleanup handlers and sem_wait with the small 
> > program attached under linux.
> > On a first computer (glibc 2.3.4, gcc 3.3.3, kernel 2.6.8.1), when I 
> > compile it with g++, although the thread seems to close, the cleanup 
> > handler is not call. When I compile the programm with gcc, no problem 
> > occurs : the cleanup handler is call and the thread stop.
> >    
>
> Works just fine here, glibc 2.3.4, gcc 3.4.3, kernel 2.6.10,
> with all of
> gcc
> g++
> gcc -I/usr/include/nptl -L/usr/lib64/nptl
> g++ -I/usr/include/nptl -L/usr/lib64/nptl
>
> testCancel is called in all cases.
>  
I updated my system : gcc 3.4.3, glib 2.3.4 (compiled with gcc 3.3.3), 
linux kernel 2.6.11.4 (also compiled with gcc 3.3.3).
The same problem occurs !

Actually, it seems that the problem comes from the definition of 
pthread_cleanup_push and pthread_cleanup_pop.
I modified my pthread.h file. Now, it don't use the first definitions 
that use the __cleanup__ C attribut (through classes or explicit 
definition). It is using the __pthread_register_cancel and 
__pthread_unregister_cancel functions.
With this modification, the program is working just fine : the 
testCancle is called.

Damien Touraine