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/*
 * Copyright 2021 EPAM Systems, Inc
 *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership. Licensed under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.epam.deltix.util;

import sun.misc.Unsafe;

import java.lang.reflect.Field;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;


public class UnsafeAccess {

    public static final Unsafe UNSAFE;

    static {
        Unsafe unsafe = null;
        try {
            PrivilegedExceptionAction action = () -> {
                Field f = Unsafe.class.getDeclaredField("theUnsafe");
                f.setAccessible(true);
                return (Unsafe) f.get(null);
            };
            unsafe = AccessController.doPrivileged(action);
        } catch (final Exception ex) {
            LangUtil.rethrowUnchecked(ex);
        }

        UNSAFE = unsafe;
    }

}