clicache/integration-test2/Framework.cs

/*
 * 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.
 */

 using System.Net;
using System.IO;
using System.Net.Sockets;

namespace Apache.Geode.Client.IntegrationTests
{
    public abstract class Framework
    {
        public static int FreeTcpPort()
        {
            var tcpListner = new TcpListener(IPAddress.Loopback, 0);
            tcpListner.Start();
            var port = ((IPEndPoint)tcpListner.LocalEndpoint).Port;
            tcpListner.Stop();
            return port;
        }
    }
}