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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Copyright (C) 2021 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#ifndef QPLUGIN_H
#define QPLUGIN_H
#include <QtCore/qobject.h>
#include <QtCore/qpointer.h>
#include <QtCore/qjsonobject.h>
QT_BEGIN_NAMESPACE
inline constexpr unsigned char qPluginArchRequirements()
{
return 0
#ifndef QT_NO_DEBUG
| 1
#endif
#ifdef __AVX2__
| 2
# ifdef __AVX512F__
| 4
# endif
#endif
;
}
typedef QObject *(*QtPluginInstanceFunction)();
struct QPluginMetaData
{
const uchar *data;
size_t size;
};
typedef QPluginMetaData (*QtPluginMetaDataFunction)();
struct Q_CORE_EXPORT QStaticPlugin
{
public:
constexpr QStaticPlugin(QtPluginInstanceFunction i, QtPluginMetaDataFunction m)
: instance(i), rawMetaDataSize(m().size), rawMetaData(m().data)
{}
QtPluginInstanceFunction instance;
QJsonObject metaData() const;
private:
qsizetype rawMetaDataSize;
const void *rawMetaData;
};
Q_DECLARE_TYPEINFO(QStaticPlugin, Q_PRIMITIVE_TYPE);
void Q_CORE_EXPORT qRegisterStaticPluginFunction(QStaticPlugin staticPlugin);
#if (defined(Q_OF_ELF) || defined(Q_OS_WIN)) && (defined (Q_CC_GNU) || defined(Q_CC_CLANG))
# define QT_PLUGIN_METADATA_SECTION \
__attribute__ ((section (".qtmetadata"))) __attribute__((used))
#elif defined(Q_OS_MAC)
// TODO: Implement section parsing on Mac
# define QT_PLUGIN_METADATA_SECTION \
__attribute__ ((section ("__TEXT,qtmetadata"))) __attribute__((used))
#elif defined(Q_CC_MSVC)
// TODO: Implement section parsing for MSVC
#pragma section(".qtmetadata",read,shared)
# define QT_PLUGIN_METADATA_SECTION \
__declspec(allocate(".qtmetadata"))
#else
# define QT_PLUGIN_METADATA_SECTION
#endif
#define Q_IMPORT_PLUGIN(PLUGIN) \
extern const QT_PREPEND_NAMESPACE(QStaticPlugin) qt_static_plugin_##PLUGIN(); \
class Static##PLUGIN##PluginInstance{ \
public: \
Static##PLUGIN##PluginInstance() { \
qRegisterStaticPluginFunction(qt_static_plugin_##PLUGIN()); \
} \
}; \
static Static##PLUGIN##PluginInstance static##PLUGIN##Instance;
#if defined(QT_PLUGIN_RESOURCE_INIT_FUNCTION)
# define QT_PLUGIN_RESOURCE_INIT \
extern void QT_PLUGIN_RESOURCE_INIT_FUNCTION(); \
QT_PLUGIN_RESOURCE_INIT_FUNCTION();
#else
# define QT_PLUGIN_RESOURCE_INIT
#endif
#define Q_PLUGIN_INSTANCE(IMPLEMENTATION) \
{ \
static QT_PREPEND_NAMESPACE(QPointer)<QT_PREPEND_NAMESPACE(QObject)> _instance; \
if (!_instance) { \
QT_PLUGIN_RESOURCE_INIT \
_instance = new IMPLEMENTATION; \
} \
return _instance; \
}
#if defined(QT_STATICPLUGIN)
# define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME) \
static QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGINCLASSNAME() \
Q_PLUGIN_INSTANCE(PLUGINCLASS) \
static QPluginMetaData qt_plugin_query_metadata_##PLUGINCLASSNAME() \
{ return { qt_pluginMetaData_##PLUGINCLASSNAME, sizeof qt_pluginMetaData_##PLUGINCLASSNAME }; } \
const QT_PREPEND_NAMESPACE(QStaticPlugin) qt_static_plugin_##PLUGINCLASSNAME() { \
return { qt_plugin_instance_##PLUGINCLASSNAME, qt_plugin_query_metadata_##PLUGINCLASSNAME}; \
}
#else
# define QT_MOC_EXPORT_PLUGIN(PLUGINCLASS, PLUGINCLASSNAME) \
extern "C" Q_DECL_EXPORT \
QPluginMetaData qt_plugin_query_metadata() \
{ return { qt_pluginMetaData_##PLUGINCLASSNAME, sizeof qt_pluginMetaData_##PLUGINCLASSNAME }; } \
extern "C" Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance() \
Q_PLUGIN_INSTANCE(PLUGINCLASS)
#endif
#define Q_EXPORT_PLUGIN(PLUGIN) \
Q_EXPORT_PLUGIN2(PLUGIN, PLUGIN)
# define Q_EXPORT_PLUGIN2(PLUGIN, PLUGINCLASS) \
static_assert(false, "Old plugin system used")
# define Q_EXPORT_STATIC_PLUGIN2(PLUGIN, PLUGINCLASS) \
static_assert(false, "Old plugin system used")
QT_END_NAMESPACE
#endif // Q_PLUGIN_H
|
