fixed bugs in parsing inputs and responding to them

src/lib.rs

@@ -43,6 +43,7 @@ impl MalestormIo {
     fn write(&self, buf: &[u8]) -> Result<(), IoError> {
         let mut writer = self.stdout.lock();
         writer.write_all(buf)?;
+        writer.write_all(&[b'\n'])?;
         writer.flush()
     }
 
@@ -59,27 +60,30 @@ impl<'a> Malestorm<'a> {
 
         let mut buf = Vec::new();
 
+        loop {
             let read = match program.io.read_line(&mut buf) {
                 Ok(v) => v,
                 Err(e) => panic!("{:?}", e),
             };
 
             if read == 0 {
-            return;
+                continue;
             }
 
             let message: Message = match serde_json::from_slice(&buf) {
                 Ok(v) => v,
                 Err(e) => {
                     eprintln!(
-                    "error in parsing input: {:?} msg = {}",
+                        "error in parsing input: {:?} msg = {:?}",
                         e,
                         String::from_utf8_lossy(&buf)
                     );
-                return;
+                    continue;
                 }
             };
 
+            buf.clear();
+
             let mtype = message.body.message_type.clone();
 
             let pc = program.clone();
@@ -88,12 +92,13 @@ impl<'a> Malestorm<'a> {
                 Some(v) => v,
                 None => {
                     eprintln!("no handler found for {}", message.body.message_type);
-                return;
+                    continue;
                 }
             };
 
             handler(message, pc);
         }
+    }
 
     pub fn set_node_id(&self, node_id: String) {
         let mut node = self.node.borrow_mut();