use tetsy_daemonize::{AsHandle, daemonize}; use std::{thread, time, process, io}; use self::io::Write; fn main() { match daemonize("pid_file") { // we are now in the daemon, use this handle to detach from the parent process Ok(mut handle) => { let mut count = 0; loop { // the daemon's output is piped to the parent process' stdout println!("Count: {}", count); if count == 5 { handle.detach_with_msg("count has reached 5, continuing in background"); } thread::sleep(time::Duration::from_secs(1)); count += 1; } } // the daemon or the parent process may receive this error, // just print it and exit Err(e) => { // if this is the daemon, this is piped to the parent's stderr eprintln!("{}", e); // don't forget to flush let _ = io::stderr().flush(); process::exit(1); } } }