PreserveErrno.cpp

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/*
 * SNode.C - a slim toolkit for network communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of 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.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "PreserveErrno.h"
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
 
#endif // DOXYGEN_SHOULD_SKIP_THIS
 
namespace utils {
 
    PreserveErrno::PreserveErrno(int newErrno)
        : errnum(errno) {
        errno = newErrno;
    }
 
    void PreserveErrno::setErrno(int newErrno) {
        errnum = newErrno;
    }
 
    PreserveErrno::~PreserveErrno() {
        errno = errnum;
    }
 
} // namespace utils