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3rdparty/QThreadCreateThread.hpp

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <QThread>
+
+// FOR OLD QT
+
+class QThreadCreateThread : public QThread {
+public:
+    explicit QThreadCreateThread(std::future<void> &&future)
+            : m_future(std::move(future)) {
+        // deleteLater
+        connect(this, &QThread::finished, this, &QThread::deleteLater);
+    }
+
+private:
+    void run() override {
+        m_future.get();
+    }
+
+    std::future<void> m_future;
+};
+
+inline QThread *createThreadImpl(std::future<void> &&future) {
+    return new QThreadCreateThread(std::move(future));
+}
+
+template<typename Function, typename... Args>
+QThread *createQThread(Function &&f, Args &&... args) {
+    using DecayedFunction = typename std::decay<Function>::type;
+    auto threadFunction =
+            [f = static_cast<DecayedFunction>(std::forward<Function>(f))](auto &&... largs) mutable -> void {
+                (void) std::invoke(std::move(f), std::forward<decltype(largs)>(largs)...);
+            };
+
+    return createThreadImpl(std::async(std::launch::deferred,
+                                       std::move(threadFunction),
+                                       std::forward<Args>(args)...));
+}