gl_reset_budget.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef GL_RESET_BUDGET_H
#define GL_RESET_BUDGET_H
 
#include <chrono>
#include <cstddef>
#include <deque>
 
namespace KIGFX
{

class GL_RESET_BUDGET
{
public:
    using CLOCK = std::chrono::steady_clock;
 
    GL_RESET_BUDGET( size_t aMaxResets, CLOCK::duration aWindow ) :
            m_maxResets( aMaxResets ),
            m_window( aWindow )
    {
    }

    bool RecordReset( CLOCK::time_point aNow )
    {
        while( !m_resets.empty() && aNow - m_resets.front() >= m_window )
            m_resets.pop_front();
 
        m_resets.push_back( aNow );
 
        return m_resets.size() <= m_maxResets;
    }
 
private:
    size_t                        m_maxResets;
    CLOCK::duration               m_window;
    std::deque<CLOCK::time_point> m_resets;
};
 
} // namespace KIGFX
 
#endif // GL_RESET_BUDGET_H