Some cleanup in outputdefault test prog

src/bin/lasp_outputdefault.rs

@@ -6,14 +6,15 @@ use std::io;
 use std::{thread, time};
 // use
 
-fn spawn_stdin_channel() -> Receiver<String> {
+/// Spawns a thread and waits for a single line, pushes it to the receiver and  returns
+fn stdin_channel_wait_for_return() -> Receiver<String> {
+
     let (tx, rx) = unbounded();
-    thread::spawn(move || 'tt: loop {
+   thread::spawn(move || {
         let mut buffer = String::new();
         io::stdin().read_line(&mut buffer).unwrap();
-        if tx.send(buffer).is_err() {
-            break 'tt;
-        }
+        // Do not care whether we succeed here.
+        let _ = tx.send(buffer);
     });
     rx
 }
@@ -24,42 +25,42 @@ fn sleep(millis: u64) {
 fn main() -> Result<()> {
     let mut smgr = StreamMgr::new();
 
-    println!("Starting stream...");
-    smgr.startDefaultOutputStream()?;
-    let stdin_channel = spawn_stdin_channel();
+    let stdin_channel = stdin_channel_wait_for_return();
 
     println!("Creating signal generator...");
-    let mut siggen = Siggen::newSineWave(2, 100.);
-    siggen.setDCOffset(&[0.1, 0.]);
-    // let mut siggen = Siggen::newWhiteNoise(2);
+    let mut siggen = Siggen::newSineWave(2, 432.);
+
+    // Some things that can be done
+    // siggen.setDCOffset(&[0.1, 0.]);
+
+    // Reduce all gains a bit...
     siggen.setAllGains(0.1);
-    // siggen.setMute(&[true, true]);
-    // siggen.setMute(&[true, false]);
-    // siggen.setAllMute(false);
+
+    // Apply signal generator
     smgr.setSiggen(siggen)?;
 
+    println!("Starting stream...");
+    smgr.startDefaultOutputStream()?;
+
+    println!("Press <enter> key to quit...");
     'infy: loop {
         match stdin_channel.try_recv() {
             Ok(_key) => break 'infy,
             Err(TryRecvError::Empty) => {}
             Err(TryRecvError::Disconnected) => panic!("Channel disconnected"),
         }
-        sleep(1000);
+        sleep(100);
         match smgr.getStatus(StreamType::Output) {
             StreamStatus::NotRunning => {
                 println!("Stream is not running?");
                 break 'infy;
             }
-            StreamStatus::Running => {
-                println!("Stream is running...");
-            }
+            StreamStatus::Running => {}
             StreamStatus::Error(e) => {
                 println!("Stream error: {}", e);
                 break 'infy;
             }
         }
-
-        // let stat = smgr.
     }
 
     Ok(())