On 2022-11-10 17:14, Stephen Hemminger wrote:
On Thu, 10 Nov 2022 08:50:40 +0100
Mattias Rönnblom <hof...@lysator.liu.se> wrote:
Why is select() needed? Wouldn't a blocking read suffice? Or getchar().
On Linux, signal set SA_RESTART so a simple read is not interrupted.
One option was to use sigaction() which allows controlling flags, but that
won't work on Windows. Using select() works on both.
OK, so select() is used because a signal might interrupt read() on Windows?
while (read(0, &c, 1) == -1 && errno == EINTR)
;
Would that work?
Try it. On Linux the read never gets interrupted.
I had no doubts about that, but I misunderstood the code and thought
that was the required behavior.
