Support launching Servo2d with a URI.

support/magicleap/Servo2D/code/src/main.cpp

@@ -3,11 +3,32 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 #include <Servo2D.h>
+#include <ml_lifecycle.h>
 #include <ml_logging.h>
 
 int main(int argc, char **argv)
 {
   ML_LOG(Debug, "Servo2D Starting.");
-  Servo2D myApp;
-  return myApp.run();
+
+  // Handle optional initialization string passed via 'mldb launch'
+  MLLifecycleInitArgList* list = NULL;
+  MLLifecycleGetInitArgList(&list);
+  const char* uri = NULL;
+  if (nullptr != list) {
+    int64_t list_length = 0;
+    MLLifecycleGetInitArgListLength(list, &list_length);
+    if (list_length > 0) {
+      const MLLifecycleInitArg* iarg = NULL;
+      MLLifecycleGetInitArgByIndex(list, 0, &iarg);
+      if (nullptr != iarg) {
+        MLLifecycleGetInitArgUri(iarg, &uri);
+      }
+    }
+  }
+
+  Servo2D myApp(uri);
+  int rv = myApp.run();
+
+  MLLifecycleFreeInitArgList(&list);
+  return rv;
 }