flush out serial data when too long (#375)

sim/dalboard.ts

@@ -93,7 +93,7 @@ namespace pxsim {
                     break;
                 case "serial":
                     let data = (<SimulatorSerialMessage>msg).data || "";
-                    this.serialState.recieveData(data);
+                    this.serialState.receiveData(data);
                     break;
                 case "radiopacket":
                     let packet = <SimulatorRadioPacketMessage>msg;

sim/state/serial.ts

@@ -1,8 +1,9 @@
 namespace pxsim {
+    const SERIAL_BUFFER_LENGTH = 16;
     export class SerialState {
         serialIn: string[] = [];
 
-        public recieveData(data: string) {
+        public receiveData(data: string) {
             this.serialIn.push();
         }
 
@@ -13,18 +14,15 @@ namespace pxsim {
 
         serialOutBuffer: string = "";
         writeSerial(s: string) {
-            for (let i = 0; i < s.length; ++i) {
-                let c = s[i];
-                this.serialOutBuffer += c;
-                if (c == "\n") {
+            this.serialOutBuffer += s;
+            if (/\n/.test(this.serialOutBuffer) || this.serialOutBuffer.length > SERIAL_BUFFER_LENGTH) {
                 Runtime.postMessage(<SimulatorSerialMessage>{
-                        type: "serial",
+                    type: 'serial',
                     data: this.serialOutBuffer,
-                        id: runtime.id
+                    id: runtime.id,
+                    sim: true
                 })
-                    this.serialOutBuffer = ""
-                    break;
-                }
+                this.serialOutBuffer = '';
             }
         }
     }