Make the server run as a daemon

Cargo.toml

@@ -8,6 +8,7 @@ edition = "2018"
 
 [dependencies]
 anyhow = "1.0"
+daemonize = "0.4"
 inotify = "0.9"
 local_ipaddress = "0.1"
 nix = "0.20"

src/main.rs

@@ -1,4 +1,5 @@
 use anyhow::{anyhow, Context, Result};
+use daemonize::Daemonize;
 use inotify::{Inotify, EventMask, WatchMask};
 use nix::{ioctl_read, ioctl_read_buf};
 use serde_json::{json, Value};
@@ -38,6 +39,10 @@ ioctl_read!(get_num_buttons, JSIOCG_MAGIC, JSIOCGBUTTONS, u8);
 ioctl_read_buf!(get_gamepad_name, JSIOCG_MAGIC, JSIOCGNAME, u8);
 
 fn main() {
+    if let Err(e) = daemonize_me() {
+        panic!("Unable to daemonize application: {}", e);
+    }
+
     loop {
         println!("Waiting for Open Joystick Display");
 
@@ -78,6 +83,19 @@ fn main() {
     }
 }
 
+fn daemonize_me() -> Result<()> {
+    let stdout = File::create("/tmp/ojd_server.out")?;
+    let stderr = File::create("/tmp/ojd_server.err")?;
+
+    let daemon = Daemonize::new()
+        .stdout(stdout)
+        .stderr(stderr);
+
+    let _ = daemon.start()?;
+
+    Ok(())
+}
+
 fn connect_to_ojd() -> Result<TcpStream> {
     let mut ip_addr = local_ipaddress::get().context("Unable to retrieve local IP address")?;
     ip_addr.push_str(":56709");