Atmosphere/exosphere2/program/source/smc/secmon_smc_se_lock.cpp

/*
 * Copyright (c) 2018-2020 Atmosphère-NX
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <exosphere.hpp>
#include "../secmon_error.hpp"
#include "secmon_smc_se_lock.hpp"

namespace ams::secmon::smc {

    namespace {

        constinit std::atomic_bool g_is_locked = false;

    }

    bool TryLockSecurityEngine() {
        bool value = false;
        return g_is_locked.compare_exchange_strong(value, true);
    }

    void UnlockSecurityEngine() {
        g_is_locked = false;
    }

    bool IsSecurityEngineLocked() {
        return g_is_locked;
    }

}