1 /*
2 * Copyright 2016 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
17 package io.netty.handler.codec.http2;
18
19 import io.netty.util.internal.UnstableApi;
20
21 /**
22 * HTTP/2 PING Frame.
23 */
24 @UnstableApi
25 public interface Http2PingFrame extends Http2Frame {
26
27 /**
28 * When {@code true}, indicates that this ping is a ping response.
29 */
30 boolean ack();
31
32 /**
33 * Returns the eight byte opaque data.
34 */
35 long content();
36 }