[KDE/Mac] [CODE] Multithreaded SIGSEGV signal handling, please examine

[Michael Pyne]

On Sunday, September 25, 2011 14:34:49 you wrote:
> The next problem is, that sem_init(..) isn't implemented here.
> $ ./sigcatcher
> Error: sem_init: Function not implemented
> $
> 
> It seems that only named semaphores are implemented.
> I've changed this part of your code to use sem_open(..) instead [see
> attachment] and then I get the expected result:

For the application in question named synchronization primitives are non-
ideal. Does Mac OS X support a plain pthread_mutex? If so that would work fine 
(and probably even the Qt primitives will work OK).

Also, could you test whether a SIGSEGV is actually caught and handled 
correctly? My email last night was wishy-washy about that but the 
sigsetjmp/siglongjmp stuff is closer to hocus-pocus than most programs are 
likely to get and it would be nice to know if that works or not.

Regards,
 - Michael Pyne
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