| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.ddm; |
| |
| import org.apache.harmony.dalvik.ddmc.Chunk; |
| import org.apache.harmony.dalvik.ddmc.ChunkHandler; |
| import org.apache.harmony.dalvik.ddmc.DdmServer; |
| import android.util.Log; |
| |
| /** |
| * Handle thread-related traffic. |
| */ |
| public class DdmHandleNativeHeap extends ChunkHandler { |
| |
| public static final int CHUNK_NHGT = type("NHGT"); |
| |
| private static DdmHandleNativeHeap mInstance = new DdmHandleNativeHeap(); |
| |
| |
| /* singleton, do not instantiate */ |
| private DdmHandleNativeHeap() {} |
| |
| /** |
| * Register for the messages we're interested in. |
| */ |
| public static void register() { |
| DdmServer.registerHandler(CHUNK_NHGT, mInstance); |
| } |
| |
| /** |
| * Called when the DDM server connects. The handler is allowed to |
| * send messages to the server. |
| */ |
| public void connected() {} |
| |
| /** |
| * Called when the DDM server disconnects. Can be used to disable |
| * periodic transmissions or clean up saved state. |
| */ |
| public void disconnected() {} |
| |
| /** |
| * Handle a chunk of data. |
| */ |
| public Chunk handleChunk(Chunk request) { |
| Log.i("ddm-nativeheap", "Handling " + name(request.type) + " chunk"); |
| int type = request.type; |
| |
| if (type == CHUNK_NHGT) { |
| return handleNHGT(request); |
| } else { |
| throw new RuntimeException("Unknown packet " |
| + ChunkHandler.name(type)); |
| } |
| } |
| |
| /* |
| * Handle a "Native Heap GeT" request. |
| */ |
| private Chunk handleNHGT(Chunk request) { |
| //ByteBuffer in = wrapChunk(request); |
| |
| byte[] data = getLeakInfo(); |
| |
| if (data != null) { |
| // wrap & return |
| Log.i("ddm-nativeheap", "Sending " + data.length + " bytes"); |
| return new Chunk(ChunkHandler.type("NHGT"), data, 0, data.length); |
| } else { |
| // failed, return a failure error code and message |
| return createFailChunk(1, "Something went wrong"); |
| } |
| } |
| |
| private native byte[] getLeakInfo(); |
| } |
| |