133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
/*
|
|
* MIT License
|
|
*
|
|
* Copyright (C) 2022 by wangwenx190 (Yuhang Zhao)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "sysapiloader_p.h"
|
|
#include <QtCore/qhash.h>
|
|
#include <QtCore/qmutex.h>
|
|
#ifdef Q_OS_WINDOWS
|
|
# include <QtCore/private/qsystemlibrary_p.h>
|
|
#else
|
|
# include <QtCore/qlibrary.h>
|
|
#endif
|
|
|
|
FRAMELESSHELPER_BEGIN_NAMESPACE
|
|
|
|
Q_LOGGING_CATEGORY(lcSysApiLoader, "wangwenx190.framelesshelper.core.sysapiloader")
|
|
#define INFO qCInfo(lcSysApiLoader)
|
|
#define DEBUG qCDebug(lcSysApiLoader)
|
|
#define WARNING qCWarning(lcSysApiLoader)
|
|
#define CRITICAL qCCritical(lcSysApiLoader)
|
|
|
|
struct SysApiLoaderData
|
|
{
|
|
QMutex mutex;
|
|
QHash<QString, std::optional<QFunctionPointer>> functionCache = {};
|
|
};
|
|
|
|
Q_GLOBAL_STATIC(SysApiLoaderData, g_loaderData)
|
|
|
|
Q_GLOBAL_STATIC(SysApiLoader, g_sysApiLoader)
|
|
|
|
SysApiLoader::SysApiLoader(QObject *parent) : QObject(parent)
|
|
{
|
|
}
|
|
|
|
SysApiLoader::~SysApiLoader() = default;
|
|
|
|
SysApiLoader *SysApiLoader::instance()
|
|
{
|
|
return g_sysApiLoader();
|
|
}
|
|
|
|
QFunctionPointer SysApiLoader::resolve(const QString &library, const char *function)
|
|
{
|
|
Q_ASSERT(!library.isEmpty());
|
|
Q_ASSERT(function);
|
|
if (library.isEmpty() || !function) {
|
|
return nullptr;
|
|
}
|
|
#ifdef Q_OS_WINDOWS
|
|
return QSystemLibrary::resolve(library, function);
|
|
#else
|
|
return QLibrary::resolve(library, function);
|
|
#endif
|
|
}
|
|
|
|
QFunctionPointer SysApiLoader::resolve(const QString &library, const QByteArray &function)
|
|
{
|
|
Q_ASSERT(!library.isEmpty());
|
|
Q_ASSERT(!function.isEmpty());
|
|
if (library.isEmpty() || function.isEmpty()) {
|
|
return nullptr;
|
|
}
|
|
return SysApiLoader::resolve(library, function.constData());
|
|
}
|
|
|
|
QFunctionPointer SysApiLoader::resolve(const QString &library, const QString &function)
|
|
{
|
|
Q_ASSERT(!library.isEmpty());
|
|
Q_ASSERT(!function.isEmpty());
|
|
if (library.isEmpty() || function.isEmpty()) {
|
|
return nullptr;
|
|
}
|
|
return SysApiLoader::resolve(library, function.toUtf8());
|
|
}
|
|
|
|
bool SysApiLoader::isAvailable(const QString &library, const QString &function)
|
|
{
|
|
Q_ASSERT(!library.isEmpty());
|
|
Q_ASSERT(!function.isEmpty());
|
|
if (library.isEmpty() || function.isEmpty()) {
|
|
return false;
|
|
}
|
|
const QMutexLocker locker(&g_loaderData()->mutex);
|
|
if (g_loaderData()->functionCache.contains(function)) {
|
|
return g_loaderData()->functionCache.value(function).has_value();
|
|
}
|
|
const QFunctionPointer symbol = SysApiLoader::resolve(library, function);
|
|
if (symbol) {
|
|
g_loaderData()->functionCache.insert(function, symbol);
|
|
DEBUG << "Successfully loaded" << function << "from" << library;
|
|
return true;
|
|
}
|
|
g_loaderData()->functionCache.insert(function, std::nullopt);
|
|
WARNING << "Failed to load" << function << "from" << library;
|
|
return false;
|
|
}
|
|
|
|
QFunctionPointer SysApiLoader::get(const QString &function)
|
|
{
|
|
Q_ASSERT(!function.isEmpty());
|
|
if (function.isEmpty()) {
|
|
return nullptr;
|
|
}
|
|
const QMutexLocker locker(&g_loaderData()->mutex);
|
|
if (g_loaderData()->functionCache.contains(function)) {
|
|
return g_loaderData()->functionCache.value(function).value_or(nullptr);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
FRAMELESSHELPER_END_NAMESPACE
|