1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.example.socksproxy;
17
18 import io.netty.buffer.Unpooled;
19 import io.netty.channel.Channel;
20 import io.netty.channel.ChannelFutureListener;
21
22 public final class SocksServerUtils {
23
24 /**
25 * Closes the specified channel after all queued write requests are flushed.
26 */
27 public static void closeOnFlush(Channel ch) {
28 if (ch.isActive()) {
29 ch.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
30 }
31 }
32
33 private SocksServerUtils() { }
34 }