1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtDBus module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
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17** GNU Lesser General Public License Usage
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19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
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25** GNU General Public License Usage
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27** General Public License version 2.0 or (at your option) the GNU General
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38****************************************************************************/
39
40#ifndef QDBUSMETATYPE_H
41#define QDBUSMETATYPE_H
42
43#include <QtDBus/qtdbusglobal.h>
44#include "QtCore/qmetatype.h"
45#include <QtDBus/qdbusargument.h>
46
47#ifndef QT_NO_DBUS
48
49QT_BEGIN_NAMESPACE
50
51
52class Q_DBUS_EXPORT QDBusMetaType
53{
54public:
55 typedef void (*MarshallFunction)(QDBusArgument &, const void *);
56 typedef void (*DemarshallFunction)(const QDBusArgument &, void *);
57
58 static void registerMarshallOperators(int typeId, MarshallFunction, DemarshallFunction);
59 static bool marshall(QDBusArgument &, int id, const void *data);
60 static bool demarshall(const QDBusArgument &, int id, void *data);
61
62 static int signatureToType(const char *signature);
63 static const char *typeToSignature(int type);
64};
65
66template<typename T>
67void qDBusMarshallHelper(QDBusArgument &arg, const T *t)
68{ arg << *t; }
69
70template<typename T>
71void qDBusDemarshallHelper(const QDBusArgument &arg, T *t)
72{ arg >> *t; }
73
74template<typename T>
75int qDBusRegisterMetaType(
76#ifndef Q_QDOC
77 T * /* dummy */ = nullptr
78#endif
79)
80{
81 void (*mf)(QDBusArgument &, const T *) = qDBusMarshallHelper<T>;
82 void (*df)(const QDBusArgument &, T *) = qDBusDemarshallHelper<T>;
83
84 int id = qMetaTypeId<T>(); // make sure it's registered
85 QDBusMetaType::registerMarshallOperators(id,
86 reinterpret_cast<QDBusMetaType::MarshallFunction>(mf),
87 reinterpret_cast<QDBusMetaType::DemarshallFunction>(df));
88 return id;
89}
90
91QT_END_NAMESPACE
92
93#endif // QT_NO_DBUS
94#endif
95