Crate daemonize

daemonize is a library for writing system daemons. Inspired by the Python library thesharp/daemonize.

The respository is located at https://github.com/knsd/daemonize/.

Usage example:

extern crate daemonize;

use std::fs::File;

use daemonize::Daemonize;

fn main() {
    let stdout = File::create("/tmp/daemon.out").unwrap();
    let stderr = File::create("/tmp/daemon.err").unwrap();

    let daemonize = Daemonize::new()
        .pid_file("/tmp/test.pid") // Every method except `new` and `start`
        .chown_pid_file(true)      // is optional, see `Daemonize` documentation
        .working_directory("/tmp") // for default behaviour.
        .user("nobody")
        .group("daemon") // Group name
        .group(2)        // or group id.
        .umask(0o777)    // Set umask, `0o027` by default.
        .stdout(stdout)  // Redirect stdout to `/tmp/daemon.out`.
        .stderr(stderr)  // Redirect stderr to `/tmp/daemon.err`.
        .privileged_action(|| "Executed before drop privileges");

    match daemonize.start() {
        Ok(_) => println!("Success, daemonized"),
        Err(e) => eprintln!("Error, {}", e),
    }
}

Structs

Child

Chiled process execution outcome.

Daemonize

Daemonization options.

Error

This error type for Daemonize start method.

Group

Expects system group id or name. If name is provided it will be resolved to id later.

Mask

File mode creation mask.

Parent

Parent process execution outcome.

Stdio

Describes what to do with a standard I/O stream for a child process.

User

Expects system user id or name. If name is provided it will be resolved to id later.

Enums

Outcome

Daemonization process outcome. Can be matched to check is it a parent process or a child process.