DigitalPinSetAccess.cpp

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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
 */
#include <duds/hardware/interface/DigitalPinSetAccess.hpp>

namespace duds { namespace hardware { namespace interface {

void DigitalPinSetAccess::reserveAdditional(unsigned int len) {
    unsigned int total = (unsigned int)pinvec.size() + len;
    if (total > pinvec.capacity()) {
        pinvec.reserve(total);
    }
}

DigitalPinSetAccess &DigitalPinSetAccess::operator=(
    DigitalPinSetAccess &&old
) noexcept {
    // lose access to pin
    retire();
    // update the port object of the old object
    if (old.havePins()) {
        old.port()->updateAccess(old, this);
    }
    // take the old object's data
    DigitalPinAccessBase::operator=(std::move(old));
    pinvec = std::move(old.pinvec);
    return *this;
}

void DigitalPinSetAccess::retire() noexcept {
    if (havePins()) {
        port()->updateAccess(*this, nullptr);
        pinvec.clear();
        reset();
    }
}

std::vector<unsigned int> DigitalPinSetAccess::subset(
    const std::vector<unsigned int> &pos
) const {
    std::vector<unsigned int> pins;
    pins.reserve(pos.size());
    std::vector<unsigned int>::const_iterator iter = pos.cbegin();
    for (; iter != pos.cend(); ++iter) {
        if ((*iter != -1) && (*iter >= pinvec.size())) {
            DUDS_THROW_EXCEPTION(PinDoesNotExist() <<
                PinErrorId(globalId(*iter))
            );
        }
        pins.push_back(pinvec[*iter]);
    }
    return pins;
}

void DigitalPinSetAccess::modifyConfig(const DigitalPinConfig &conf) const {
    std::vector<DigitalPinConfig> c(pinvec.size(), conf);
    port()->modifyConfig(pinvec, c, &portdata);
}

void DigitalPinSetAccess::output(bool state) const {
    std::vector<bool> s(pinvec.size(), state);
    port()->output(pinvec, s, &portdata);
}

} } }