1 /*
2  * Copyright (C) 2007 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 android.ddm;
18 
19 import org.apache.harmony.dalvik.ddmc.Chunk;
20 import org.apache.harmony.dalvik.ddmc.ChunkHandler;
21 import org.apache.harmony.dalvik.ddmc.DdmServer;
22 import android.util.Log;
23 import java.nio.ByteBuffer;
24 
25 /**
26  * Handle an EXIT chunk.
27  */
28 public class DdmHandleExit extends ChunkHandler {
29 
30     public static final int CHUNK_EXIT = type("EXIT");
31 
32     private static DdmHandleExit mInstance = new DdmHandleExit();
33 
34 
35     /* singleton, do not instantiate */
DdmHandleExit()36     private DdmHandleExit() {}
37 
38     /**
39      * Register for the messages we're interested in.
40      */
register()41     public static void register() {
42         DdmServer.registerHandler(CHUNK_EXIT, mInstance);
43     }
44 
45     /**
46      * Called when the DDM server connects.  The handler is allowed to
47      * send messages to the server.
48      */
connected()49     public void connected() {}
50 
51     /**
52      * Called when the DDM server disconnects.  Can be used to disable
53      * periodic transmissions or clean up saved state.
54      */
disconnected()55     public void disconnected() {}
56 
57     /**
58      * Handle a chunk of data.  We're only registered for "EXIT".
59      */
handleChunk(Chunk request)60     public Chunk handleChunk(Chunk request) {
61         if (false)
62             Log.v("ddm-exit", "Handling " + name(request.type) + " chunk");
63 
64         /*
65          * Process the request.
66          */
67         ByteBuffer in = wrapChunk(request);
68 
69         int statusCode = in.getInt();
70 
71         Runtime.getRuntime().halt(statusCode);
72 
73         // if that doesn't work, return an empty message
74         return null;
75     }
76 }
77 
78