labath wrote:

> The one issue with this is that MainLoop on Windows only supports sockets, 
> not Files. At the moment we primarily work over stdin/stdout for 
> communication, although the `--connection` flag is in now, so we can support 
> sockets.

Okay, I think I understand what you're saying. With the connection flag, we're 
communicating over sockets, and we only need to force termination in the socket 
case. However, the code that actually reads from the socket is generic and also 
needs to work in the "regular" mode -- which communicates over stdin/out.

> I do think we could merge some of these threads if MainLoop supported Files 
> on Windows. That may be worth tackling specifically to unblock this behavior.

That would be very nice, but I think that would have do be on you mostly. I 
should be able to support you with e.g. windows bits, but I don't think I'd be 
able to do everything. I'm actually sitting on a Socket refactor patch for a 
couple of months now that I haven't had time to clean up and submit.

I do think we should do something about the close-in-another-thread thingy 
(it's an anti pattern that tends to show up a lot, and I'm very getting 
sensitive to it :/). Would it be possible to refactor the reading code so that 
it goes through the main loop if we're communicating over a socket, and reads 
directly from the IOObject otherwise? I don't expect the result to be pretty, 
but it feels like it should be possible to make it not-completely-ugly.

https://github.com/llvm/llvm-project/pull/128750
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