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