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1 unstable release
0.3.0 | Feb 22, 2021 |
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#11 in #daemonize
67 downloads per month
22KB
376 lines
Tetsy Daemonize
Example
extern crate tetsy_daemonize;
use tetsy_daemonize::daemonize;
use std::{thread, time, process, io};
use io::Write;
fn main() {
match daemonize("pid_file.txt") {
// we are now in the daemon, use this handle to detach from the parent process
Ok(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
io::stderr().flush();
process::exit(1);
}
}
}
License
This crate is distributed under the terms of GNU GENERAL PUBLIC LICENSE version 3.0.
See LICENSE for details.
Dependencies
~0.7–1MB
~16K SLoC