Add Qt libs and headers

paho-mqtt3as-proxy/Qt/include/QtCore/qrefcount.h

@@ -0,0 +1,56 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QREFCOUNT_H
+#define QREFCOUNT_H
+
+#include <QtCore/qatomic.h>
+
+QT_BEGIN_NAMESPACE
+
+
+namespace QtPrivate
+{
+
+class RefCount
+{
+public:
+    inline bool ref() noexcept {
+        int count = atomic.loadRelaxed();
+        if (count != -1) // !isStatic
+            atomic.ref();
+        return true;
+    }
+
+    inline bool deref() noexcept {
+        int count = atomic.loadRelaxed();
+        if (count == -1) // isStatic
+            return true;
+        return atomic.deref();
+    }
+
+    bool isStatic() const noexcept
+    {
+        // Persistent object, never deleted
+        return atomic.loadRelaxed() == -1;
+    }
+
+    bool isShared() const noexcept
+    {
+        int count = atomic.loadRelaxed();
+        return (count != 1) && (count != 0);
+    }
+
+    void initializeOwned() noexcept { atomic.storeRelaxed(1); }
+    void initializeUnsharable() noexcept { atomic.storeRelaxed(0); }
+
+    QBasicAtomicInt atomic;
+};
+
+}
+
+#define Q_REFCOUNT_INITIALIZE_STATIC { Q_BASIC_ATOMIC_INITIALIZER(-1) }
+
+QT_END_NAMESPACE
+
+#endif