Add Qt libs and headers

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

@@ -0,0 +1,108 @@
+// 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 QSOCKETNOTIFIER_H
+#define QSOCKETNOTIFIER_H
+
+#include <QtCore/qobject.h>
+
+QT_BEGIN_NAMESPACE
+
+class QSocketDescriptor;
+class QSocketNotifierPrivate;
+class Q_CORE_EXPORT QSocketNotifier : public QObject
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QSocketNotifier)
+
+public:
+    enum Type { Read, Write, Exception };
+
+    explicit QSocketNotifier(Type, QObject *parent = nullptr);
+    QSocketNotifier(qintptr socket, Type, QObject *parent = nullptr);
+    ~QSocketNotifier();
+
+    void setSocket(qintptr socket);
+    qintptr socket() const;
+    Type type() const;
+
+    bool isValid() const;
+    bool isEnabled() const;
+
+public Q_SLOTS:
+    void setEnabled(bool);
+
+Q_SIGNALS:
+#if defined(Q_MOC_RUN)
+    // Add default arguments during Q_MOC_RUN which makes moc generate "signals" which takes less
+    // parameters, but we won't actually allow emitting without all 3. This lets users use the
+    // string-based connect without specifying QSocketNotifier::Type as one of the parameters.
+    void activated(QSocketDescriptor socket, QSocketNotifier::Type activationEvent = Read,
+                   QPrivateSignal = {});
+#else
+    void activated(QSocketDescriptor socket, QSocketNotifier::Type activationEvent, QPrivateSignal);
+#endif
+
+    // ### Qt7: consider removing it.
+    // The old signal is compiled internally, but hidden outside of this class.
+    // This means the PMF-based connect(..) will automatically, on recompile, pick up the new
+    // version while the old-style connect(..) can query the metaobject system for this version.
+#if defined(Q_MOC_RUN) || defined(BUILDING_QSOCKETNOTIFIER) || defined(Q_QDOC)
+    QT_MOC_COMPAT void activated(int socket, QPrivateSignal);
+#endif
+
+protected:
+    bool event(QEvent *) override;
+
+private:
+    Q_DISABLE_COPY(QSocketNotifier)
+};
+
+class QSocketDescriptor
+{
+public:
+#if defined(Q_OS_WIN) || defined(Q_QDOC)
+    using DescriptorType = Qt::HANDLE;
+#define Q_DECL_CONSTEXPR_NOT_WIN
+#else
+    using DescriptorType = int;
+#define Q_DECL_CONSTEXPR_NOT_WIN Q_DECL_CONSTEXPR
+#endif
+
+    Q_DECL_CONSTEXPR_NOT_WIN Q_IMPLICIT
+    QSocketDescriptor(DescriptorType descriptor = DescriptorType(-1)) noexcept : sockfd(descriptor)
+    {
+    }
+
+#if defined(Q_OS_WIN) || defined(Q_QDOC)
+    Q_IMPLICIT QSocketDescriptor(qintptr desc) noexcept : sockfd(DescriptorType(desc)) {}
+    Q_IMPLICIT operator qintptr() const noexcept { return qintptr(sockfd); }
+    Q_DECL_CONSTEXPR Qt::HANDLE winHandle() const noexcept { return sockfd; }
+#endif
+    Q_DECL_CONSTEXPR operator DescriptorType() const noexcept { return sockfd; }
+
+    Q_DECL_CONSTEXPR_NOT_WIN bool isValid() const noexcept { return *this != QSocketDescriptor(); }
+
+    friend Q_DECL_CONSTEXPR_NOT_WIN bool operator==(QSocketDescriptor lhs,
+                                                    QSocketDescriptor rhs) noexcept
+    {
+        return lhs.sockfd == rhs.sockfd;
+    }
+    friend Q_DECL_CONSTEXPR_NOT_WIN bool operator!=(QSocketDescriptor lhs,
+                                                    QSocketDescriptor rhs) noexcept
+    {
+        return lhs.sockfd != rhs.sockfd;
+    }
+
+#undef Q_DECL_CONSTEXPR_NOT_WIN
+
+private:
+    DescriptorType sockfd;
+};
+
+QT_END_NAMESPACE
+
+QT_DECL_METATYPE_EXTERN_TAGGED(QSocketNotifier::Type, QSocketNotifier_Type, Q_CORE_EXPORT)
+QT_DECL_METATYPE_EXTERN(QSocketDescriptor, Q_CORE_EXPORT)
+
+#endif // QSOCKETNOTIFIER_H