1 /*
2 * Copyright 2020 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.handler.codec.quic;
17
18 /**
19 * Statistics about the {@code QUIC} connection. If unknown by the implementation it might return {@code -1} values
20 * for the various methods.
21 */
22 public interface QuicConnectionStats {
23 /**
24 * @return The number of QUIC packets received on the connection.
25 */
26 long recv();
27
28 /**
29 * @return The number of QUIC packets sent on this connection.
30 */
31 long sent();
32
33 /**
34 * @return The number of QUIC packets that were lost.
35 */
36 long lost();
37
38 /**
39 * @return The number of sent QUIC packets with retransmitted data.
40 */
41 long retrans();
42
43 /**
44 * @return The number of sent bytes.
45 */
46 long sentBytes();
47
48 /**
49 * @return The number of received bytes.
50 */
51 long recvBytes();
52
53 /**
54 * @return The number of bytes lost.
55 */
56 long lostBytes();
57
58 /**
59 * @return The number of stream bytes retransmitted.
60 */
61 long streamRetransBytes();
62
63 /**
64 * @return The number of known paths for the connection.
65 */
66 long pathsCount();
67 }