/*

 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#pragma once

#include "Forward.h"

#include <AK/Forward.h>

#include <AK/Vector.h>

#include <LibCore/ElapsedTimer.h>

namespace Shell {

class FileDescriptionCollector {

public:

    FileDescriptionCollector() = default;

    ~FileDescriptionCollector();

    void collect();

    void add(int fd);

private:

    Vector<int, 32> m_fds;

};

class SavedFileDescriptors {

public:

    SavedFileDescriptors(Vector<NonnullRefPtr<AST::Rewiring>> const&);

    ~SavedFileDescriptors();

private:

    struct SavedFileDescriptor {

        int original { -1 };

        int saved { -1 };

    };

    Vector<SavedFileDescriptor> m_saves;

    FileDescriptionCollector m_collector;

};

}