You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lib.rs
    path of file: ./repos/smithay/wlcs_anvil/src
    
    the code of the file until where you have to start completion: mod main_loop;

use std::{
    io::{Error, ErrorKind},
    os::{
        fd::{AsRawFd, OwnedFd},
        unix::net::UnixStream,
    },
    sync::atomic::{AtomicU32, Ordering},
    thread::JoinHandle,
};

use smithay::{
    reexports::calloop::{
        self,
        channel::{channel, Sender},
    },
    utils::{Logical, Point},
};

use wayland_sys::{
    client::{wl_display, wl_display_get_fd, wl_proxy, wl_proxy_get_id},
    common::{wl_fixed_t, wl_fixed_to_double},
    ffi_dispatch,
};
use wlcs::{
    extensi
    
    fn create_client_socket(&self) -> std::io::Result<OwnedFd> {
        if let Some((ref sender, _)) = self.server {
            if let Ok((client_side, server_side)) = UnixStream::pair() {
                if let Err(e) = sender.send(WlcsEvent::NewClient {
                    stream: server_side,
                    client_id: client_side.as_raw_fd(),
                }) {
                    return Err(Error::new(ErrorKind::ConnectionReset, e));
                }
                return Ok(client_side.into());
            }
        }
        Err(Error::from(ErrorKind::NotFound))
    }