/* -------------------------------------------------------------------------
 * This file is part of the MindStudio project.
 * Copyright (c) 2026 Huawei Technologies Co.,Ltd.
 *
 * MindStudio is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *          http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 * ------------------------------------------------------------------------- */

#pragma once

#include <csignal>

/*
 * SignalHandler类用于包装信号相关的系统调用signal()
 */
class SignalWrapper {
    using FuncPtr = void(*)(int);
public:
    static bool RegisterCallback(int32_t signo, FuncPtr func)
    {
        if (func == nullptr) {
            return false;
        }

        auto ret = std::signal(signo, func);
        if (ret == SIG_ERR) {
            return false;
        }

        return true;
    }

    static void UnregisterCallback(int32_t signo)
    {
        (void)std::signal(signo, SIG_DFL);
    }
};