/* Copyright 2017-2021 Fabian Koller, Axel Huebl
 *
 * This file is part of openPMD-api.
 *
 * openPMD-api is free software: you can redistribute it and/or modify
 * it under the terms of of either the GNU General Public License or
 * the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * openPMD-api 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 and the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * and the GNU Lesser General Public License along with openPMD-api.
 * If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once

#include "openPMD/IO/AbstractIOHandler.hpp"
#include "openPMD/IO/Access.hpp"
#include "openPMD/IO/IOTask.hpp"

#include <future>
#include <string>

namespace openPMD
{
/** Dummy handler without any IO operations.
 */
class DummyIOHandler : public AbstractIOHandler
{
public:
    DummyIOHandler(std::string, Access);
    ~DummyIOHandler() override = default;

    /** No-op consistent with the IOHandler interface to enable library use
     * without IO.
     */
    void enqueue(IOTask const &) override;
    /** No-op consistent with the IOHandler interface to enable library use
     * without IO.
     */
    std::future<void> flush(internal::ParsedFlushParams &) override;
}; // DummyIOHandler
} // namespace openPMD
