The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 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; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 23 | |
| 24 | /** |
| 25 | * Handle thread-related traffic. |
| 26 | */ |
| 27 | public class DdmHandleNativeHeap extends ChunkHandler { |
| 28 | |
| 29 | public static final int CHUNK_NHGT = type("NHGT"); |
| 30 | |
| 31 | private static DdmHandleNativeHeap mInstance = new DdmHandleNativeHeap(); |
| 32 | |
| 33 | |
| 34 | /* singleton, do not instantiate */ |
| 35 | private DdmHandleNativeHeap() {} |
| 36 | |
| 37 | /** |
| 38 | * Register for the messages we're interested in. |
| 39 | */ |
| 40 | public static void register() { |
| 41 | DdmServer.registerHandler(CHUNK_NHGT, mInstance); |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Called when the DDM server connects. The handler is allowed to |
| 46 | * send messages to the server. |
| 47 | */ |
| 48 | public void connected() {} |
| 49 | |
| 50 | /** |
| 51 | * Called when the DDM server disconnects. Can be used to disable |
| 52 | * periodic transmissions or clean up saved state. |
| 53 | */ |
| 54 | public void disconnected() {} |
| 55 | |
| 56 | /** |
| 57 | * Handle a chunk of data. |
| 58 | */ |
| 59 | public Chunk handleChunk(Chunk request) { |
| 60 | Log.i("ddm-nativeheap", "Handling " + name(request.type) + " chunk"); |
| 61 | int type = request.type; |
| 62 | |
| 63 | if (type == CHUNK_NHGT) { |
| 64 | return handleNHGT(request); |
| 65 | } else { |
| 66 | throw new RuntimeException("Unknown packet " |
| 67 | + ChunkHandler.name(type)); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * Handle a "Native Heap GeT" request. |
| 73 | */ |
| 74 | private Chunk handleNHGT(Chunk request) { |
| 75 | //ByteBuffer in = wrapChunk(request); |
| 76 | |
| 77 | byte[] data = getLeakInfo(); |
| 78 | |
| 79 | if (data != null) { |
| 80 | // wrap & return |
| 81 | Log.i("ddm-nativeheap", "Sending " + data.length + " bytes"); |
| 82 | return new Chunk(ChunkHandler.type("NHGT"), data, 0, data.length); |
| 83 | } else { |
| 84 | // failed, return a failure error code and message |
| 85 | return createFailChunk(1, "Something went wrong"); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | private native byte[] getLeakInfo(); |
| 90 | } |
| 91 | |