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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTCONCURRENT_RUN_H
#define QTCONCURRENT_RUN_H
#if 0
#pragma qt_class(QtConcurrentRun)
#endif
#include <QtConcurrent/qtconcurrentcompilertest.h>
#if !defined(QT_NO_CONCURRENT) || defined(Q_QDOC)
#include <QtConcurrent/qtconcurrentrunbase.h>
#include <QtConcurrent/qtconcurrentstoredfunctioncall.h>
QT_BEGIN_NAMESPACE
#ifdef Q_QDOC
typedef int Function;
namespace QtConcurrent {
template <typename T>
QFuture<T> run(Function function, ...);
template <typename T>
QFuture<T> run(QThreadPool *pool, Function function, ...);
} // namespace QtConcurrent
#else
namespace QtConcurrent {
#define QTCONCURRENT_RUN_NODISCARD \
Q_NODISCARD_X("Use QThreadPool::start(Callable&&) if you don't need the returned QFuture")
template <class Function, class ...Args>
QTCONCURRENT_RUN_NODISCARD
auto run(QThreadPool *pool, Function &&f, Args &&...args)
{
DecayedTuple<Function, Args...> tuple { std::forward<Function>(f),
std::forward<Args>(args)... };
return TaskResolver<std::decay_t<Function>, std::decay_t<Args>...>::run(
std::move(tuple), TaskStartParameters { pool });
}
template <class Function, class ...Args>
QTCONCURRENT_RUN_NODISCARD
auto run(QThreadPool *pool, std::reference_wrapper<const Function> &&functionWrapper,
Args &&...args)
{
return run(pool, std::forward<const Function>(functionWrapper.get()),
std::forward<Args>(args)...);
}
template <class Function, class ...Args>
QTCONCURRENT_RUN_NODISCARD
auto run(Function &&f, Args &&...args)
{
return run(QThreadPool::globalInstance(), std::forward<Function>(f),
std::forward<Args>(args)...);
}
// overload with a Promise Type hint, takes thread pool
template <class PromiseType, class Function, class ...Args>
QTCONCURRENT_RUN_NODISCARD
auto run(QThreadPool *pool, Function &&f, Args &&...args)
{
return (new StoredFunctionCallWithPromise<Function, PromiseType, Args...>(
std::forward<Function>(f), std::forward<Args>(args)...))->start(pool);
}
// overload with a Promise Type hint, uses global thread pool
template <class PromiseType, class Function, class ...Args>
QTCONCURRENT_RUN_NODISCARD
auto run(Function &&f, Args &&...args)
{
return run<PromiseType>(QThreadPool::globalInstance(), std::forward<Function>(f),
std::forward<Args>(args)...);
}
#undef QTCONCURRENT_RUN_NODISCARD
} //namespace QtConcurrent
#endif // Q_QDOC
QT_END_NAMESPACE
#endif // QT_NO_CONCURRENT
#endif
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