Wait for Pub/Sub server to stop before returning

qjs_wrapper.c

@@ -3,7 +3,8 @@
 
 static JSClassID jsDroneClassId;
 
-static UA_Boolean pubsubRunning = true;
+static UA_Boolean pubsubShouldRun = true;
+static UA_Boolean pubsubExited = false;
 
 static UA_UInt32 nbDrone;
 static JSValueConst *droneObjectIdList;
@@ -340,13 +341,14 @@ static JSValue js_run_pubsub(JSContext *ctx, JSValueConst this_val,
                         droneVariableArray, countof(droneVariableArray), id,
                         nbDrone, interval, init_node_id, get_drone_id,
                         pubsub_get_value, pubsub_update_coordinates,
-                        &pubsubRunning);
+                        &pubsubShouldRun);
     } else {
         res = subscribeOnly(&transportProfile, &networkAddressUrl,
                             droneVariableArray, countof(droneVariableArray), id,
                             nbDrone, interval, init_node_id, get_drone_id,
-                            pubsub_print_coordinates, &pubsubRunning);
+                            pubsub_print_coordinates, &pubsubShouldRun);
     }
+    pubsubExited = true;
 
     JS_FreeCString(ctx, ipv6);
     JS_FreeCString(ctx, port);
@@ -370,7 +372,9 @@ static JSValue js_stop_pubsub(JSContext *ctx, JSValueConst thisVal,
 {
     struct messageNode *current;
 
-    pubsubRunning = false;
+    pubsubShouldRun = false;
+    while(!pubsubExited)
+        sleep(1);
     free(droneObjectIdList);
 
     while (messageQueue.head != NULL) {