Em Mon, May 26, 2014 at 10:46:47AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, May 22, 2014 at 04:27:45PM +0200, Michael Kerrisk (man-pages) escreveu:
> > Thanks! I applied this patch against 3.15-rc6.

> > recvmmsg() now (mostly) does what I expect: 
> > * it waits until either the timeout expires or vlen messages 
> >   have been received
> > * If no message is received before timeout, it returns -1/EAGAIN.
> > * If vlen messages are received before the timeout expires, then
> >   the remaining time is returned in timeout.

> > One question: in the event that the call is interrupted by a signal 
> > handler, it fails (as expected) with EINTR, but the 'timeout' value is 
> > not updated with the remaining time on the timer. Would it be desirable 
> > to emulate the behavior of select() (and other syscalls) in this 
> > respect, and instead return the remaining time if interrupted by 
> > a signal?
 
> I think so, will check how to achieve that!

Can you try the attached patch on top of the first one?

It starts adding explicit parentheses on a ternary, as David requested,
and then should return the remaining timeouts in cases like signals,
etc.

Please let me know if this is enough.

- Arnaldo

P.S. compile testing while sending this message :-)