Upgrade to mio 0.4.x

[zslayton]

Currently running 0.3.x, which generates warnings when building. It will cease to work with rustc 1.3.

[frederikbosch]

We could even upgrade to mio 0.5.0 by now. This might also give this library support for windows. Nonetheless, I would love to see the upgrade. Do you see this happening any time soon? I will have look too!

[zslayton]

Agreed, targeting 0.5.x would be ideal; I'd love to be able to claim Windows support. I fully intend to do this but recently moved and started a new job, so I haven't had much time to work on my Github projects.

I had hoped to migrate to the latest version of mio by adapting stomp-rs to use mai under the covers. mai is another library I'm working on that exposes a high-level interface to mio's functionality with the goal of making it easier to implement protocols asynchronously. When I last left off, mai had gotten to a point where I could start to modify stomp-rs but I never found the time. Hopefully I can pick this up again in the next couple of weeks!

[frederikbosch]

@zslayton That would be really awesome. I think it would be beneficial for both libraries - mai and stomp-rs - to find developers that can help us.

[zslayton]

I haven't forgotten about this. I'm going to work on it this week.

[zslayton]

This is proving to be quite the overhaul; the user-facing API is going to end up needing to change a fair amount. I should have an initial version by next weekend.

[frederikbosch]

@zslayton I can imagine. BC breaks for sure. But since we are below 1.0.0 this should be no problem.

[zslayton]

My work on this is now available in this branch. It's working fine but there's a lot of cleanup to be done before I can promote it to master. The documentation in the README hasn't been updated yet. You can look at the send_and_subscribe example for a sense of what it'll look like when it's done.

[frederikbosch]

@zslayton Wonderful! I am going to test soon. You might want to create a PR at the mio package README and put mia in the list of libraries that use mio. Maybe that helps getting people involved.