wip: waiter

src/init/daemon/sighandler.rs

@@ -0,0 +1,31 @@
+use std::error;
+use tokio::signal::unix::{signal, SignalKind};
+use tokio::select;
+use tokio::sync::watch::Sender;
+
+pub async fn sighandler(s: Sender<i32>) -> Result<(), Box<dyn error::Error + Send + Sync>> {
+    let mut sigint = signal(SignalKind::interrupt())?; 
+    let mut sigterm = signal(SignalKind::terminate())?;
+    let mut sigchld = signal(SignalKind::child())?;
+
+    'signal: loop {
+        select! {
+            _ = sigint.recv() => {
+                println!("got SIGINT");
+                drop(s);
+                break 'signal;
+            },
+            _ = sigterm.recv() => {
+                println!("got SIGTERM");
+                drop(s);
+                break 'signal;
+            },
+            _ = sigchld.recv() => {
+                // do nothing intentionally
+                // return Err(())
+            },
+        }
+        }
+
+    Ok(())
+}