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// Copyright (C) 2018 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPLUGIN_P_H
#define QPLUGIN_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the QLibrary class. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <private/qglobal_p.h>
#include "QtCore/qplugin.h"
#include "QtCore/qcborvalue.h"
#include "QtCore/qcbormap.h"
QT_BEGIN_NAMESPACE
enum class QtPluginMetaDataKeys {
QtVersion,
Requirements,
IID,
ClassName,
MetaData,
URI,
IsDebug,
};
// F(IntKey, StringKey, Description)
// Keep this list sorted in the order moc should output.
#define QT_PLUGIN_FOREACH_METADATA(F) \
F(QtPluginMetaDataKeys::IID, "IID", "Plugin's Interface ID") \
F(QtPluginMetaDataKeys::ClassName, "className", "Plugin class name") \
F(QtPluginMetaDataKeys::MetaData, "MetaData", "Other meta data") \
F(QtPluginMetaDataKeys::URI, "URI", "Plugin URI") \
/* not output by moc in CBOR */ \
F(QtPluginMetaDataKeys::QtVersion, "version", "Qt version") \
F(QtPluginMetaDataKeys::Requirements, "archlevel", "Architectural level") \
F(QtPluginMetaDataKeys::IsDebug, "debug", "Debug-mode plugin") \
/**/
namespace {
struct DecodedArchRequirements
{
quint8 level;
bool isDebug;
friend constexpr bool operator==(DecodedArchRequirements r1, DecodedArchRequirements r2)
{
return r1.level == r2.level && r1.isDebug == r2.isDebug;
}
};
static constexpr DecodedArchRequirements decodeVersion0ArchRequirements(quint8 value)
{
// see qPluginArchRequirements() and QPluginMetaDataV2::archRequirements()
DecodedArchRequirements r = {};
#ifdef Q_PROCESSOR_X86
if (value & 4)
r.level = 4; // AVX512F -> x86-64-v4
else if (value & 2)
r.level = 3; // AVX2 -> x86-64-v3
#endif
if (value & 1)
r.isDebug = true;
return r;
}
// self checks
static_assert(decodeVersion0ArchRequirements(0) == DecodedArchRequirements{ 0, false });
static_assert(decodeVersion0ArchRequirements(1) == DecodedArchRequirements{ 0, true });
#ifdef Q_PROCESSOR_X86
static_assert(decodeVersion0ArchRequirements(2) == DecodedArchRequirements{ 3, false });
static_assert(decodeVersion0ArchRequirements(3) == DecodedArchRequirements{ 3, true });
static_assert(decodeVersion0ArchRequirements(4) == DecodedArchRequirements{ 4, false });
static_assert(decodeVersion0ArchRequirements(5) == DecodedArchRequirements{ 4, true });
#endif
static constexpr DecodedArchRequirements decodeVersion1ArchRequirements(quint8 value)
{
return { quint8(value & 0x7f), bool(value & 0x80) };
}
// self checks
static_assert(decodeVersion1ArchRequirements(0) == DecodedArchRequirements{ 0, false });
static_assert(decodeVersion1ArchRequirements(0x80) == DecodedArchRequirements{ 0, true });
#ifdef Q_PROCESSOR_X86
static_assert(decodeVersion1ArchRequirements(1) == DecodedArchRequirements{ 1, false });
static_assert(decodeVersion1ArchRequirements(3) == DecodedArchRequirements{ 3, false});
static_assert(decodeVersion1ArchRequirements(4) == DecodedArchRequirements{ 4, false });
static_assert(decodeVersion1ArchRequirements(0x82) == DecodedArchRequirements{ 2, true });
static_assert(decodeVersion1ArchRequirements(0x84) == DecodedArchRequirements{ 4, true });
#endif
} // unnamed namespace
class QPluginParsedMetaData
{
QCborValue data;
bool setError(const QString &errorString) Q_DECL_COLD_FUNCTION
{
data = errorString;
return false;
}
public:
QPluginParsedMetaData() = default;
QPluginParsedMetaData(QByteArrayView input) { parse(input); }
bool isError() const { return !data.isMap(); }
QString errorString() const { return data.toString(); }
bool parse(QByteArrayView input);
bool parse(QPluginMetaData metaData)
{ return parse(QByteArrayView(reinterpret_cast<const char *>(metaData.data), metaData.size)); }
QJsonObject toJson() const; // only for QLibrary & QPluginLoader
// if data is not a map, toMap() returns empty, so shall these functions
QCborMap toCbor() const { return data.toMap(); }
QCborValue value(QtPluginMetaDataKeys k) const { return data[int(k)]; }
};
QT_END_NAMESPACE
#endif // QPLUGIN_P_H
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