| /**************************************************************************** |
| ** |
| ** Copyright (C) 2013 Laszlo Papp <lpapp@kde.org> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtSerialPort module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
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| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QTUDEV_P_H |
| #define QTUDEV_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #ifdef LINK_LIBUDEV |
| extern "C" |
| { |
| #include <libudev.h> |
| } |
| #else |
| #include <QtCore/qlibrary.h> |
| #include <QtCore/qstring.h> |
| #include <QtCore/qdebug.h> |
| |
| #define GENERATE_SYMBOL_VARIABLE(returnType, symbolName, ...) \ |
| typedef returnType (*fp_##symbolName)(__VA_ARGS__); \ |
| static fp_##symbolName symbolName; |
| |
| #define RESOLVE_SYMBOL(symbolName) \ |
| symbolName = (fp_##symbolName)resolveSymbol(udevLibrary, #symbolName); \ |
| if (!symbolName) \ |
| return false; |
| |
| struct udev; |
| |
| #define udev_list_entry_foreach(list_entry, first_entry) \ |
| for (list_entry = first_entry; \ |
| list_entry != nullptr; \ |
| list_entry = udev_list_entry_get_next(list_entry)) |
| |
| struct udev_device; |
| struct udev_enumerate; |
| struct udev_list_entry; |
| |
| GENERATE_SYMBOL_VARIABLE(struct ::udev *, udev_new); |
| GENERATE_SYMBOL_VARIABLE(struct ::udev_enumerate *, udev_enumerate_new, struct ::udev *) |
| GENERATE_SYMBOL_VARIABLE(int, udev_enumerate_add_match_subsystem, struct udev_enumerate *, const char *) |
| GENERATE_SYMBOL_VARIABLE(int, udev_enumerate_scan_devices, struct udev_enumerate *) |
| GENERATE_SYMBOL_VARIABLE(struct udev_list_entry *, udev_enumerate_get_list_entry, struct udev_enumerate *) |
| GENERATE_SYMBOL_VARIABLE(struct udev_list_entry *, udev_list_entry_get_next, struct udev_list_entry *) |
| GENERATE_SYMBOL_VARIABLE(struct udev_device *, udev_device_new_from_syspath, struct udev *udev, const char *syspath) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_list_entry_get_name, struct udev_list_entry *) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_device_get_devnode, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_device_get_sysname, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_device_get_driver, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(struct udev_device *, udev_device_get_parent, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_device_get_subsystem, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(const char *, udev_device_get_property_value, struct udev_device *, const char *) |
| GENERATE_SYMBOL_VARIABLE(void, udev_device_unref, struct udev_device *) |
| GENERATE_SYMBOL_VARIABLE(void, udev_enumerate_unref, struct udev_enumerate *) |
| GENERATE_SYMBOL_VARIABLE(void, udev_unref, struct udev *) |
| |
| inline QFunctionPointer resolveSymbol(QLibrary *udevLibrary, const char *symbolName) |
| { |
| QFunctionPointer symbolFunctionPointer = udevLibrary->resolve(symbolName); |
| if (!symbolFunctionPointer) |
| qWarning("Failed to resolve the udev symbol: %s", symbolName); |
| |
| return symbolFunctionPointer; |
| } |
| |
| inline bool resolveSymbols(QLibrary *udevLibrary) |
| { |
| if (!udevLibrary->isLoaded()) { |
| udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 1); |
| if (!udevLibrary->load()) { |
| udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 0); |
| if (!udevLibrary->load()) { |
| qWarning("Failed to load the library: %s, supported version(s): %i and %i", qPrintable(udevLibrary->fileName()), 1, 0); |
| return false; |
| } |
| } |
| } |
| |
| RESOLVE_SYMBOL(udev_new) |
| RESOLVE_SYMBOL(udev_enumerate_new) |
| RESOLVE_SYMBOL(udev_enumerate_add_match_subsystem) |
| RESOLVE_SYMBOL(udev_enumerate_scan_devices) |
| RESOLVE_SYMBOL(udev_enumerate_get_list_entry) |
| RESOLVE_SYMBOL(udev_list_entry_get_next) |
| RESOLVE_SYMBOL(udev_device_new_from_syspath) |
| RESOLVE_SYMBOL(udev_list_entry_get_name) |
| RESOLVE_SYMBOL(udev_device_get_devnode) |
| RESOLVE_SYMBOL(udev_device_get_sysname) |
| RESOLVE_SYMBOL(udev_device_get_driver) |
| RESOLVE_SYMBOL(udev_device_get_parent) |
| RESOLVE_SYMBOL(udev_device_get_subsystem) |
| RESOLVE_SYMBOL(udev_device_get_property_value) |
| RESOLVE_SYMBOL(udev_device_unref) |
| RESOLVE_SYMBOL(udev_enumerate_unref) |
| RESOLVE_SYMBOL(udev_unref) |
| |
| return true; |
| } |
| |
| #endif |
| |
| #endif |