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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Python recompile
Date: Fri, 14 Mar 2025 12:48:19 -0700
Organization: A noiseless patient Spider
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On 3/14/2025 12:46 PM, Chris M. Thomasson wrote:
> On 3/13/2025 6:48 PM, Lawrence D'Oliveiro wrote:
>> On Thu, 13 Mar 2025 16:45:28 -0700, Chris M. Thomasson wrote:
>>
>>> I have no idea how the Python dev's use IOCP with sockets.
>>
>> They can’t figure out a way to support file I/O notifiers (of the kind
>> commonly used with event loops) with it. If you know of a way to do it,
>> please tell us.
> 
> Well, usually, iirc, been a while, when GQCSEX returns we take the 
> WSAOVERLAPPED and convert it to our extended structure. Basically 
> similar to how Linux uses offsetof to extend node structures, or on 
> Windows CONTAINING_RECORD, then we can use that to pass into a function 
> called on_read, on_write, on_accept, on_connect, ect... type of 
> functions. Now, this is an interesting point. I remember where calling 
> the event handler in an IO thread can be an issue if its going into 
> "generic" user code. So, sometimes I would pass the events to another 
> lock-free queue/stack, whatever so the "logic" threads get to work on 
> it. The logic threads are different than the IO threads.

You don't want to use a separate IOCP for the "logic" threads because it 
uses non-paged memory. So, a lock-free queue/stack is the way to go.