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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: C90 fpeek
Date: Fri, 24 Jan 2025 16:54:42 -0800
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On 1/24/2025 4:52 PM, Kaz Kylheku wrote:
> On 2025-01-24, Chris M. Thomasson <chris.m.thomasson.1@gmail.com> wrote:
>> On 1/24/2025 11:48 AM, Kaz Kylheku wrote:
>>> Unless you non-portably arranged otherwise. E.g. on POSIX
>>> we can get the fileno(stream), and use fcntl to set up O_NONBLOCK.
>>> Then get(stream) returns EOF, with errno set to EWOULDBLOCK
>>> and we whave to clearerr(stream), then poll the fd, and so it goes.
>>>
>>> Been there done that. Went back there, done that again,
>>> and then several more times, like a raging masochist.
>>
>> Why not use AIO?
> 
> In conjunction with stdio buffering? It doesn't seem possible; you have
> to go through alternative functions like aio_read, which stdio doesn't
> interface with.

Touche!

> 
> A stdio implementation that uses aio_read and friends under the hood
> might be interesting.
> 

I think it just might be interesting. Thanks.