Windows support about mio HOT 13 CLOSED

I'm wondering if someone started to work on it ? And what is the plan? (nix-rust wrapper for windows ?)

from mio.

Hi, nobody has started on windows support yet. I have a high level plan for windows but haven't thought through the details yet. The general idea is to use IOCP and to have a shim layer that matches the IOCP API w/ the mio API.

Anyway, if you are interested in attempting it, we should chat on IRC or something to get on the same page.

from mio.

Hi,
I could be interested but I am not really familiar with all this low level stuff. I will first look some docs about the IOCP API & the rust FFI.

from mio.

This thread in reddit can be very interesting: http://www.reddit.com/r/rust/comments/2kv3y5/async_io/

Specifically on this post, it's shown that IOCP can be efficient on modern windows, and they provide a link to a minimal implementation http://www.reddit.com/r/rust/comments/2kv3y5/async_io/clqr8my

I think this can be helpful when implementing the windows part.

from mio.

Can someone just try to implement the WSASelector method first, to measure
speed?

It would be 100 times easier to match to the mio flow, since it's already
select based. My guess is that it would work for most use cases.

It probably won't scale to managing 10,000 connections, but if someone
wants that they should be running Linux :)
On Dec 15, 2014 5:39 AM, "Pablo Guerrero Rosel" [email protected]
wrote:

This thread in reddit can be very interesting:
http://www.reddit.com/r/rust/comments/2kv3y5/async_io/

Specifically on this post, it's shown that IOCP can be efficient on modern
windows, and they provide a link to a minimal implementation
http://www.reddit.com/r/rust/comments/2kv3y5/async_io/clqr8my

I think this can be helpful when implementing the windows part.

—
Reply to this email directly or view it on GitHub
#10 (comment).

from mio.

http://msdn.microsoft.com/en-us/library/windows/desktop/ms741669%28v=vs.85%29.aspx
On Dec 15, 2014 7:54 AM, "Rick Richardson" [email protected]
wrote:

Can someone just try to implement the WSASelector method first, to measure
speed?

It would be 100 times easier to match to the mio flow, since it's already
select based. My guess is that it would work for most use cases.

It probably won't scale to managing 10,000 connections, but if someone
wants that they should be running Linux :)
On Dec 15, 2014 5:39 AM, "Pablo Guerrero Rosel" [email protected]
wrote:

This thread in reddit can be very interesting:
http://www.reddit.com/r/rust/comments/2kv3y5/async_io/

Specifically on this post, it's shown that IOCP can be efficient on
modern windows, and they provide a link to a minimal implementation
http://www.reddit.com/r/rust/comments/2kv3y5/async_io/clqr8my

I think this can be helpful when implementing the windows part.

—
Reply to this email directly or view it on GitHub
#10 (comment).

from mio.

Apparently, the trick found on the provided link allows to use IOCP in the same way as select, but it's much faster. They use select as a fallback for unsupported systems (< Vista ???).

Anyway, it's not crear if the API used is supported, the code is WIP, and there is no license on the repo.

But it might be worth it to have a look, because it can provide a fast and simple way to have windows support. Also, it's possible to implement the fallback with select first, and leave the optimization for future versions.

https://github.com/piscisaureus/epoll_windows

from mio.

Might be interesting: https://github.com/cyderize/rust-iocp

from mio.

I saw it few days ago but i think it will be harder to implement IOCP on a epoll based io library (than vice versa).
We can "simulate" it with a loop but we need at least a direct access to the file descriptor.

from mio.

Ok, this is a "won't fix". I think the best strategy is to dedicate mio to readiness based platforms and punt windows support to a higher level IO library (I am working on one, but it is still in the early stages).

from mio.

The readme still mentions windows support as 'eventually'. Should that be removed then?

from mio.

Ah, sorry, Windows support came back w/ #155 and is in progress: https://github.com/carllerche/mio/tree/windows-wip

from mio.

🎆 Hooray!!!!

from mio.