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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.c
Subject: Re: Python recompile
Date: Fri, 14 Mar 2025 23:03:55 -0000 (UTC)
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On Fri, 14 Mar 2025 15:06:47 -0700, Chris M. Thomasson wrote:

> On 3/14/2025 2:20 PM, Lawrence D'Oliveiro wrote:
>
>> Does that require explicitly queuing a read or a write operation?
> 
> Well, I still don't know how Python is implementing things.

The question is, how do *you* think they should be implemented, in such a 
way that those claimed limitations would not exist?

> Keep in mind that successful IOCP means the completion of an io action
> has occurred, or an error has been raised. It could be a new connection,
> a buffer was sent, data has been read. That is the C (completion) in
> IOCP, see?

In other words, you actually have to have queued I/O operations 
outstanding on every connection in order to use IOCP. Dave Cutler 
basically reinvented VMS-style programming, with completion callbacks, in 
a slightly more message-based form.

This kind of thing does not scale to having thousands of connections open 
at once.