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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include "clangiasyncjob.h"
#include <utils/runextensions.h>
#include <QFutureWatcher>
#include <QObject>
namespace ClangBackEnd {
template<class Result>
class AsyncJob : public IAsyncJob
{
public:
AsyncJob() {}
~AsyncJob() {}
using Runner = std::function<Result()>;
Runner runner() const { return m_runner; }
void setRunner(const Runner &runner) { m_runner = runner; }
Result asyncResult() const { return m_futureWatcher.future().result(); }
QFuture<void> runAsync() final
{
const auto onFinished = [this]() {
finalizeAsyncRun();
setIsFinished(true);
finishedHandler()(this);
};
QObject::connect(&m_futureWatcher,
&QFutureWatcher<Result>::finished,
onFinished);
// Use 16MB stack size as clang_annotateTokens() would with an internal thread.
const Utils::StackSizeInBytes stackSize = 1024 * 1024 * 16;
const QFuture<Result> future = Utils::runAsync(stackSize, m_runner);
m_futureWatcher.setFuture(future);
return QFuture<void>(future);
}
void preventFinalization() final
{
m_futureWatcher.disconnect();
}
private:
Runner m_runner;
QFutureWatcher<Result> m_futureWatcher;
};
} // namespace ClangBackEnd
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