ChipAccess.hpp

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/*
 * This file is part of the DUDS project. It is subject to the BSD-style
 * license terms in the LICENSE file found in the top-level directory of this
 * distribution and at https://github.com/jjackowski/duds/blob/master/LICENSE.
 * No part of DUDS, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 *
 * Copyright (C) 2017  Jeff Jackowski
 */
#ifndef CHIPACCESS_HPP
#define CHIPACCESS_HPP

#include <duds/hardware/interface/ChipSelectManager.hpp>

namespace duds { namespace hardware { namespace interface {

class ChipAccess : boost::noncopyable {
    friend std::unique_ptr<ChipAccess> ChipSelectManager::access(int);
    friend void ChipSelectManager::access(ChipAccess &, int);
    std::shared_ptr<ChipSelectManager> manager;
    ChipAccess(const std::shared_ptr<ChipSelectManager> &m) : manager(m) { }
    public:
    ChipAccess() { }
    ~ChipAccess() {
        retire();
    }
    void retire() {
        if (manager) {
            manager->retire(this);
            manager.reset();
        }
    }
    void select() {
        manager->select();
    }
    void deselect() {
        manager->deselect();
    }
    void changeChip(int chipId) {
        manager->changeChip(chipId);
    }
};

} } }


#endif        //  #ifndef CHIPACCESS_HPP