On 01/03/2017 09:54 PM, Pavel Machek wrote:

...actually, with strace and batched interface, it will be impossible
to see what is going on because of races. So I'm not sure if I like
the batched interface at all...

I'm not sure if I understand this problem.

ioctl, fcntl, most socket system calls, even open all have this problem 
as well, right?

Thanks,
Florian