Protocol.java revision 0246bbc8d7b646a2344d04d5af41580fa9e17a98 
1/*
2 * Copyright (C) 2011 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
17package com.android.internal.util;
18
19/**
20 * This class defines Message.what base addresses for various protocols that are recognized
21 * to be unique by any {@link com.android.internal.util.Statemachine} implementation. This
22 * allows for interaction between different StateMachine implementations without a conflict
23 * of message codes.
24 *
25 * As an example, all messages in {@link android.net.wifi.WifiStateMachine} will have message
26 * codes with Message.what starting at Protocol.WIFI + 1 and less than or equal to Protocol.WIFI +
27 * Protocol.MAX_MESSAGE
28 *
29 * {@hide}
30 */
31public class Protocol {
32    public static final int MAX_MESSAGE                                             = 0x0000FFFF;
33
34    /** Base reserved for system */
35    public static final int BASE_SYSTEM_RESERVED                                    = 0x00010000;
36    public static final int BASE_SYSTEM_ASYNC_CHANNEL                               = 0x00011000;
37
38    /** Non system protocols */
39    public static final int BASE_WIFI                                               = 0x00020000;
40    public static final int BASE_DHCP                                               = 0x00030000;
41    public static final int BASE_DATA_CONNECTION                                    = 0x00040000;
42    public static final int BASE_DATA_CONNECTION_TRACKER                            = 0x00050000;
43
44    //TODO: define all used protocols
45}
46