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/****************************************************************************
**
** Copyright (C) 2018 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 <functional>
#include <mutex>
namespace ClangBackEnd {
class ProgressCounter
{
public:
using SetProgressCallback = std::function<void(int, int)>;
using Lock = std::lock_guard<std::mutex>;
ProgressCounter(SetProgressCallback &&progressCallback)
: m_progressCallback(std::move(progressCallback))
{}
void addTotal(int total)
{
Lock lock(m_mutex);
if (total) {
m_total += total;
m_progressCallback(m_progress, m_total);
}
}
void removeTotal(int total)
{
Lock lock(m_mutex);
if (total) {
m_total -= total;
sendProgress();
}
}
void addProgress(int progress)
{
Lock lock(m_mutex);
if (progress) {
m_progress += progress;
sendProgress();
}
}
int total() const
{
Lock lock(m_mutex);
return m_total;
}
int progress() const
{
Lock lock(m_mutex);
return m_progress;
}
private:
void sendProgress()
{
m_progressCallback(m_progress, m_total);
if (m_progress >= m_total) {
m_progress = 0;
m_total = 0;
}
}
private:
mutable std::mutex m_mutex;
std::function<void(int, int)> m_progressCallback;
int m_progress = 0;
int m_total = 0;
};
}
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