add async call on main

2021-02-09 10:38:27 +08:00
parent 60218cd8dd
commit b406460a8d
7 changed files with 29 additions and 3 deletions
--- a/doric-Qt/doric/async/DoricAsyncCall.h
+++ b/doric-Qt/doric/async/DoricAsyncCall.h
@@ -13,6 +13,21 @@ public:
    QFuture<std::function<void()>::result_type> future =
        QtConcurrent::run(threadPool, lambda);
  }
+
+  template <typename Function>
+  static void ensureRunInMain(Function &&function) {
+    struct Event : public QEvent {
+      using DecayedFunction = typename std::decay<Function>::type;
+      DecayedFunction decayedFunction;
+      Event(DecayedFunction &&decayedFunction)
+          : QEvent(QEvent::None), decayedFunction(std::move(decayedFunction)) {}
+      Event(const DecayedFunction &decayedFunction)
+          : QEvent(QEvent::None), decayedFunction(decayedFunction) {}
+      ~Event() { decayedFunction(); }
+    };
+    QCoreApplication::postEvent(qApp,
+                                new Event(std::forward<Function>(function)));
+  }
 };

 #endif // ASYNC_CALL_H