select call in devd

Gleb Popov 6yearold at gmail.com
Wed Feb 14 07:56:41 UTC 2018


On Wed, Feb 14, 2018 at 10:13 AM, Eitan Adler <lists at eitanadler.com> wrote:

> Hi all,
>
> select(2) is declared with restrict for the pointers for fd. Can y'all
> confirm this is the correct fix?
>
> It is only lightly tested (it seems to do its job on my machine)
>
> Index: devd.cc
> ===================================================================
> --- devd.cc (revision 329192)
> +++ devd.cc (working copy)
> @@ -1021,7 +1021,7 @@ event_loop(void)
>   tv.tv_usec = 0;
>   FD_ZERO(&fds);
>   FD_SET(fd, &fds);
> - rv = select(fd + 1, &fds, &fds, &fds, &tv);
> + rv = select(fd + 1, &fds, NULL, NULL, &tv);
>   // No events -> we've processed all pending events
>   if (rv == 0) {
>   devdlog(LOG_DEBUG, "Calling daemon\n");
>
>
> --
> Eitan Adler
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Haven't looked at code at all, but why is it using select and not
kqueue/kevent?


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