why.rs

pub struct Sess<'s> {
  pub session: &'s ssh2::Session,
  pub channel: ssh2::Channel<'s>
}

rental! {
  pub mod rentals {
    use super::*;
    #[rental_mut]
    pub struct SSHSession {
      session_box: Box<ssh2::Session>,
      sess: Sess<'session_box>,
    }
  }
}

thread_local! {
  pub static SSH_RENTAL: RefCell<Option<self::rentals::SSHSession>> = {
    RefCell::new(None)
  };
}


data::SSH_RENTAL.with(|ssh_session| {
                          *ssh_session.borrow_mut() = Some(
                            data::rentals::SSHSession::new(Box::new(sess),
                              |ss| { Sess { session: &sess, channel: ss.channel_session().unwrap() } })
                          );
                        });    

data::SSH_RENTAL.with(|ssh_session| {
      if let Some(ssh_session) = *ssh_session.borrow_mut() {
        let sess = ssh_session.ref_rent(|iref| iref);
        if let Err(why) = sess.channel.wait_close() {
          error!("Failed to leave channel: {}", why);
        }
        let longdescription: String = ::std::iter::repeat('A').take(10).collect();
        if let Err(why) = sess.session.disconnect(None, &longdescription, None) {
          error!("Failed to disconnect from ssh: {}", why);
        }
      }
    });
  }