updates every 250 milliseconds

src/main.rs

@@ -1,12 +1,14 @@
 mod xsetroot;
 
 use chrono::prelude::*;
-use std::fmt;
-use std::io::prelude::*;
-use std::io::BufReader;
-use std::sync::{Arc, Mutex};
-use std::thread;
-use std::os::unix::net::{UnixStream, UnixListener};
+use std::{
+    fmt,
+    io::{prelude::*, BufReader},
+    net::Shutdown,
+    os::unix::net::{UnixListener, UnixStream},
+    sync::{Arc, Mutex},
+    thread, time,
+};
 use xsetroot::XSetRoot;
 
 type MTState = Arc<Mutex<State>>;
@@ -18,25 +20,46 @@ fn handle_client(stream: UnixStream, st: MTState) {
     let _ = write!(&stream, "OK");
 
     let mut data = st.lock().unwrap();
-    data.msg = msg;
-    data.show();
+    data.msg = msg.trim().to_string();
+    stream.shutdown(Shutdown::Both).expect("socket to close");
 }
 
-fn main() -> std::io::Result::<()> {
-    let mut st: State = State::init();
-    st.msg = "coi rodo .ui.".to_string();
+const UPDATE_FREQUENCY: u64 = 250;
+
+fn update_every_so_often(st: MTState) {
+    loop {
+        let so_often = time::Duration::from_millis(UPDATE_FREQUENCY);
+        thread::sleep(so_often);
+
+        {
+            let data = st.lock().unwrap();
+            data.show();
+        }
+    }
+}
+
+fn main() -> std::io::Result<()> {
+    let st: State = State::init();
     st.show();
     let mtst = Arc::new(Mutex::new(st));
 
+    // start update thread
+    {
+        let mtst = mtst.clone();
+        thread::spawn(move || update_every_so_often(mtst));
+    }
+
+    let _ = std::fs::remove_file("/home/cadey/tmp/cabytcini.sock")?;
     let listener = UnixListener::bind("/home/cadey/tmp/cabytcini.sock")?;
     for stream in listener.incoming() {
         match stream {
             Ok(stream) => {
-                thread::spawn(|| handle_client(stream, mtst.clone()));
-            },
+                let mtst = mtst.clone();
+                thread::spawn(move || handle_client(stream, mtst));
+            }
             Err(err) => {
                 break;
-            },
+            }
         }
     }
 
@@ -61,8 +84,12 @@ impl State {
     }
 
     fn show(&self) {
-        let now = Local::now();
+        let now = Local::now().format("%H:%M M%m %-d %a");
         let xsr = XSetRoot::init();
-        xsr.render(format!("{} | {}", self, now.format("%H:%M M%m %-d %a")));
+        if self.msg == "" {
+            xsr.render(format!("{}", now))
+        } else {
+            xsr.render(format!("{} | {}", self.msg, now));
+        }
     }
 }