// socketcan/examples/smol_print_frames.rs
//
// This file is part of the Rust 'socketcan-rs' library.
//
// Licensed under the MIT license:
//   <LICENSE or http://opensource.org/licenses/MIT>
// This file may not be copied, modified, or distributed except according
// to those terms.
//

//! A SocketCAN example using smol.
//!
//! This receives CAN frames and prints them to the console.
//!

use socketcan::{smol::CanSocket, CanFrame, Error, Result};
use std::env;

fn main() -> Result<()> {
    smol::block_on(async {
        let iface = env::args().nth(1).unwrap_or_else(|| "vcan0".into());
        let sock = CanSocket::open(&iface)?;

        println!("Reading on {}", iface);

        loop {
            match sock.read_frame().await {
                Ok(CanFrame::Data(frame)) => println!("{:?}", frame),
                Ok(CanFrame::Remote(frame)) => println!("{:?}", frame),
                Ok(CanFrame::Error(frame)) => println!("{:?}", frame),
                Err(err) => eprintln!("{}", err),
            }
        }

        #[allow(unreachable_code)]
        Ok::<(), Error>(())
    })
}