/*
 *  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;

/**
 * PoolCallback Interface.
 *
 * @deprecated The scope of the APR/Native Library will be reduced in Tomcat 9.1.x / Tomcat Native 2.x and has been
 *                 reduced in Tomcat 10.1.x / Tomcat Native 2.x onwards to only include those components required to
 *                 provide OpenSSL integration with the NIO and NIO2 connectors.
 */
@Deprecated
public interface PoolCallback {

    /**
     * Called when the pool is destroyed or cleared
     *
     * @return Function must return APR_SUCCESS
     */
    int callback();
}