/*
 * 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.sshd.common.session.filters.kex;

/**
 * A simple listener interface to know when a KEX starts or ends.
 */
public interface KexListener {

    /**
     * Invoked when a KEX starts ({@code kexStarted == true} or ends ({@code kexStarted == false}).
     *
     * @param kexStarted {@code true} if the event is the start of a KEX, {@code false} if it is the end of a KEX
     */
    void event(boolean kexStarted);
}
