Subject: Re: [need review] pax(1) change to fix PR #8868
To: None <email@example.com>
From: John Kohl <firstname.lastname@example.org>
Date: 02/11/2000 07:34:47
>>>>> "Todd" == Todd Whitesel <email@example.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 <firstname.lastname@example.org>, <email@example.com>
Home page: <http://people.ne.mediaone.net/jtk/>
Bicycling and Skiing to keep fit.