lapin-async 0.22.1

AMQP client library with a low level API designed for use with mio
Documentation 
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use mio::{self, Evented, Poll, PollOpt, Ready, SetReadiness, Token};
use parking_lot::Mutex;

use std::{
  fmt, io,
  sync::Arc,
};

#[derive(Clone)]
pub(crate) struct Registration {
  registration:  Arc<Mutex<mio::Registration>>,
  set_readiness: SetReadiness,
}

impl Registration {
  pub(crate) fn set_readiness(&self, ready: Ready) -> io::Result<()> {
    self.set_readiness.set_readiness(ready)
  }
}

impl Default for Registration {
  fn default() -> Self {
    let (registration, set_readiness) = mio::Registration::new2();
    Self {
      registration: Arc::new(Mutex::new(registration)),
      set_readiness,
    }
  }
}

impl Evented for Registration {
  fn register(&self, poll: &Poll, token: Token, interest: Ready, opts: PollOpt) -> io::Result<()> {
    self.registration.lock().register(poll, token, interest, opts)
  }

  fn reregister(&self, poll: &Poll, token: Token, interest: Ready, opts: PollOpt) -> io::Result<()> {
    self.registration.lock().reregister(poll, token, interest, opts)
  }

  fn deregister(&self, poll: &Poll) -> io::Result<()> {
    poll.deregister(&*self.registration.lock())
  }
}

impl fmt::Debug for Registration {
  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
    write!(f, "Registration")
  }
}