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/*
 * Copyright 2017 The Netty Project
 *
 * The Netty Project licenses this file to you 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.netty.microbench.handler.ssl;

import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Threads;

import java.nio.ByteBuffer;
import javax.net.ssl.SSLEngineResult;
import javax.net.ssl.SSLException;

@State(Scope.Benchmark)
@Threads(1)
public class SslEngineEchoBenchmark extends AbstractSslEngineThroughputBenchmark {

    @Param({ "1", "2", "5", "10" })
    public int numWraps;
    private ByteBuffer unwrapDstBuffer;

    @Override
    protected void doSetup()  {
        unwrapDstBuffer = allocateBuffer(serverEngine.getSession().getApplicationBufferSize() << 2);
    }

    @Override
    protected void doTearDown() {
        freeBuffer(unwrapDstBuffer);
    }

    @Benchmark
    public ByteBuffer wrapUnwrap() throws SSLException {
        ByteBuffer src = doWrap(numWraps);
        src.flip();

        unwrapDstBuffer.clear();

        SSLEngineResult unwrapResult;
        do {
            unwrapResult = serverEngine.unwrap(src, unwrapDstBuffer);
        } while (unwrapResult.getStatus() == SSLEngineResult.Status.OK && src.hasRemaining());

        assert checkSslEngineResult(unwrapResult, src, unwrapDstBuffer);
        return unwrapDstBuffer;
    }
}