1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtCore module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
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27 ** http://www.gnu.org/copyleft/gpl.html.
30 ** Alternatively, this file may be used in accordance with the terms and
31 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
49 // This file is not part of the Qt API. It exists for the convenience
50 // of the QLibrary class. This header file may change from
51 // version to version without notice, or even be removed.
56 #include "QtCore/qlibrary.h"
57 #include "QtCore/qpointer.h"
58 #include "QtCore/qstringlist.h"
59 #include "QtCore/qplugin.h"
60 #include "QtCore/qsharedpointer.h"
61 #include "QtCore/qjsonobject.h"
62 #include "QtCore/qjsondocument.h"
63 #include "QtCore/qendian.h"
65 # include "QtCore/qt_windows.h"
72 bool qt_debug_component();
85 QString fileName, qualifiedFileName;
89 bool loadPlugin(); // loads and resolves instance
92 QFunctionPointer resolve(const char *);
94 static QLibraryPrivate *findOrCreate(const QString &fileName, const QString &version = QString());
96 static QVector<QStaticPlugin> staticPlugins();
99 QPointer<QObject> inst;
100 QtPluginInstanceFunction instance;
101 QJsonObject metaData;
105 QLibrary::LoadHints loadHints;
109 static inline QJsonDocument fromRawMetaData(const char *raw) {
110 raw += strlen("QTMETADATA ");
111 // the size of the embedded JSON object can be found 8 bytes into the data (see qjson_p.h),
112 // but doesn't include the size of the header (8 bytes)
113 QByteArray json(raw, qFromLittleEndian<uint>(*(uint *)(raw + 8)) + 8);
114 return QJsonDocument::fromBinaryData(json);
118 explicit QLibraryPrivate(const QString &canonicalFileName, const QString &version);
123 QFunctionPointer resolve_sys(const char *);
125 QAtomicInt libraryRefCount;
126 QAtomicInt libraryUnloadCount;
128 enum { IsAPlugin, IsNotAPlugin, MightBeAPlugin } pluginState;
129 friend class QLibraryPrivateHasFriends;
134 #endif // QT_NO_LIBRARY
136 #endif // QLIBRARY_P_H