>>>>> "Todd" == Todd Whitesel <toddpw@best.com> writes:

Todd> Is there some reason why we cannot enable "SA_RESTART" on the SIGINFO
Todd> signal, so the kernel takes care of this automatically for read() and
Todd> write() ?

If we believe our manual pages are correct, then sigaction(2) shows that
this idea doesn't do what we want:

     Restarting of pending calls is requested by setting the SA_RESTART bit in
     sa_flags.  The affected system calls include open(2), read(2), write(2),
     sendto(2), recvfrom(2), sendmsg(2) and recvmsg(2) on a communications
     channel or a slow device (such as a terminal, but not a regular file) and
     during a wait(2) or ioctl(2).  However, calls that have already committed
     are not restarted, but instead return a partial success (for example, a
     short read count).

-- 
==John Kohl <jtk@kolvir.arlington.ma.us>, <john_kohl@alum.mit.edu>
Home page: <http://people.ne.mediaone.net/jtk/>
Bicycling and Skiing to keep fit.