[LTP] [PATCH v2] fzsync: revoke thread_B when parent hit accidental break

[Cyril Hrubis]

Hi!
> Actually I think the correct way to kill a thread is with
> pthread_cancel.
> 
> AFAICT we could call:
> 
> pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS)
> pthread_setcancelstate(PTHREAD_CANCEL_ENABLE)
> 
> at the start of thread B, then call:
> 
> pthread_cancel(<thread_b_pid>)
> 
> in thread A if we can't rely on setting the exit flag to work
> 
> There are other ways to use pthread_cancel, but this looks like the
> simplest for our use case.

That may work, at least this avoids the need to have a signal handler in
the first place.

But I would still like to push the simpler solution before the release,
i.e. checking for recvmmsg support in the test setup.

-- 
Cyril Hrubis
chrubis@suse.cz