/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.tomcat.jni;
import org.junit.Test;
/*
* Helper class to investigate native memory leaks. Needs to be used with tools
* to monitor native memory usage.
*
* Note: Moving the Pool, SSLContext, SSL and BIO creation in/out of the loop
* can help identify where the memory is leaking.
*/
public class TesterSSL {
@Test
public void testCreateDestroy() throws Exception {
Library.initialize(null);
SSL.initialize(null);
long memoryPool = Pool.create(0);
long sslCtx = SSLContext.make(memoryPool, SSL.SSL_PROTOCOL_ALL, SSL.SSL_MODE_SERVER);
for (int i = 0; i < 10000000; i++) {
doNative(sslCtx);
if (i % 1000 == 0) {
System.gc();
}
}
SSLContext.free(sslCtx);
Pool.destroy(memoryPool);
System.gc();
}
private void doNative(long sslCtx) throws Exception {
long ssl = SSL.newSSL(sslCtx, true);
long bio = SSL.makeNetworkBIO(ssl);
SSL.freeBIO(bio);
SSL.freeSSL(ssl);
}
}