libzmq 0.2.5

A strict subset of ØMQ with a high level API.
Documentation 
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use libzmq::{prelude::*, *};

use std::thread;

fn main() -> Result<(), anyhow::Error> {
    let addr: InprocAddr = InprocAddr::new_unique();

    let server = ServerBuilder::new().bind(&addr).build()?;

    // Spawn the server thread.
    let handle = thread::spawn(move || -> Result<(), Error> {
        loop {
            let request = server.recv_msg()?;
            assert_eq!(request.to_str(), Ok("ping"));

            // Retrieve the routing_id to route the reply to the client.
            let id = request.routing_id().unwrap();
            // We cast the Error<Msg> to Error<()>. This drops the Msg.
            server.route("pong", id).map_err(Error::cast)?;
        }
    });

    let client = ClientBuilder::new().connect(addr).build()?;

    // Do some request-reply work.
    client.send("ping")?;
    let msg = client.recv_msg()?;
    assert_eq!(msg.to_str(), Ok("pong"));

    // This will cause the server to fail with `InvalidCtx`.
    Ctx::global().shutdown();

    // Join with the thread.
    let err = handle.join().unwrap().unwrap_err();
    assert_eq!(err.kind(), ErrorKind::InvalidCtx);

    Ok(())
}

#[cfg(test)]
mod tests {
    use super::main;

    #[test]
    fn main_runs() {
        main().unwrap();
    }
}