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 QtCore module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 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 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QLIBRARY_H 41 #define QLIBRARY_H 42 43 #include <QtCore/qobject.h> 44 45 QT_REQUIRE_CONFIG(library); 46 47 QT_BEGIN_NAMESPACE 48 49 class QLibraryPrivate; 50 51 class Q_CORE_EXPORT QLibrary : public QObject 52 { 53 Q_OBJECT 54 Q_PROPERTY(QString fileName READ fileName WRITE setFileName) 55 Q_PROPERTY(LoadHints loadHints READ loadHints WRITE setLoadHints) 56 public: 57 enum LoadHint { 58 ResolveAllSymbolsHint = 0x01, 59 ExportExternalSymbolsHint = 0x02, 60 LoadArchiveMemberHint = 0x04, 61 PreventUnloadHint = 0x08, 62 DeepBindHint = 0x10 63 }; 64 Q_DECLARE_FLAGS(LoadHints, LoadHint) 65 Q_FLAG(LoadHint) 66 Q_FLAG(LoadHints) 67 68 explicit QLibrary(QObject *parent = nullptr); 69 explicit QLibrary(const QString& fileName, QObject *parent = nullptr); 70 explicit QLibrary(const QString& fileName, int verNum, QObject *parent = nullptr); 71 explicit QLibrary(const QString& fileName, const QString &version, QObject *parent = nullptr); 72 ~QLibrary(); 73 74 QFunctionPointer resolve(const char *symbol); 75 static QFunctionPointer resolve(const QString &fileName, const char *symbol); 76 static QFunctionPointer resolve(const QString &fileName, int verNum, const char *symbol); 77 static QFunctionPointer resolve(const QString &fileName, const QString &version, const char *symbol); 78 79 bool load(); 80 bool unload(); 81 bool isLoaded() const; 82 83 static bool isLibrary(const QString &fileName); 84 85 void setFileName(const QString &fileName); 86 QString fileName() const; 87 88 void setFileNameAndVersion(const QString &fileName, int verNum); 89 void setFileNameAndVersion(const QString &fileName, const QString &version); 90 QString errorString() const; 91 92 void setLoadHints(LoadHints hints); 93 LoadHints loadHints() const; 94 private: 95 QLibraryPrivate *d; 96 bool did_load; 97 Q_DISABLE_COPY(QLibrary) 98 }; 99 100 Q_DECLARE_OPERATORS_FOR_FLAGS(QLibrary::LoadHints) 101 102 QT_END_NAMESPACE 103 104 #endif //QLIBRARY_H 105