1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://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,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.networkstack.tethering;
18 
19 import com.android.net.module.util.Struct;
20 import com.android.net.module.util.Struct.Field;
21 import com.android.net.module.util.Struct.Type;
22 
23 /** The key of BpfMap which is used for tethering stats. */
24 public class TetherStatsKey extends Struct {
25     @Field(order = 0, type = Type.U32)
26     public final long ifindex;  // upstream interface index
27 
TetherStatsKey(final long ifindex)28     public TetherStatsKey(final long ifindex) {
29         this.ifindex = ifindex;
30     }
31 
32     // TODO: remove equals, hashCode and toString once aosp/1536721 is merged.
33     @Override
equals(Object obj)34     public boolean equals(Object obj) {
35         if (this == obj) return true;
36 
37         if (!(obj instanceof TetherStatsKey)) return false;
38 
39         final TetherStatsKey that = (TetherStatsKey) obj;
40 
41         return ifindex == that.ifindex;
42     }
43 
44     @Override
hashCode()45     public int hashCode() {
46         return Long.hashCode(ifindex);
47     }
48 
49     @Override
toString()50     public String toString() {
51         return String.format("ifindex: %d", ifindex);
52     }
53 }
54