gistfile1.java

/*
 * 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 io.airlift.slice;

import org.openjdk.jmh.runner.RunnerException;

import java.util.concurrent.ThreadLocalRandom;

public class Junk
{
    public static int rawArrayAccess(byte[] data)
    {
        int value = 0;
        for (int i = 0; i < data.length; i++) {
            value ^= data[i];
        }
        return value;
    }

    public static int sliceUnchecked(Slice data)
    {
        int value = 0;
        for (int i = 0; i < data.length(); i++) {
            value ^= data.getByteUnchecked(i);
        }
        return value;
    }

    public static void main(String[] args)
            throws RunnerException
    {
        byte[] bytes = new byte[1024];
        ThreadLocalRandom.current().nextBytes(bytes);
        Slice slice = Slices.wrappedBuffer(bytes);
        int result = 0;
        for (int i = 0; i < 1000_000_000; i++) {
            result += rawArrayAccess(bytes);
            result += sliceUnchecked(slice);
        }
        System.out.println(result);
    }
}