[PATCH xserver 17/23] os: Add ospoll interface

[Keith Packard]

Emil Velikov <emil.l.velikov at gmail.com> writes:

> Hi Keith,
>
> Style question: do you/how many others refer having separate functions for
> of ifdeffed code each vs a single with all the ifdeffs. Or in other words
> having func_foo_poll and func_foo_epoll as opposed to having it all in
> func_foo.

I started having separate versions of each function (with the same
name), but that seemed bad, so I merged the contents of the separate
functions into the single functions you see now. I found it easier to
compare the semantics of the different implementations when they were
right next to each other.

> +#ifndef _OSPOLL_H_
>> +#define _OSPOLL_H_
>> +
>> +#include <poll.h>
>> +
>
> This include should be in the C file with proper ifdef guard, right?

I'm not sure I understand -- we need <poll.h> on every system as ospoll
uses the POLLIN/POLLOUT defines for its arguments. We could use X server
specific values, but I think the posix ones are common across all of our
supported systems.

-- 
-keith
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