/*
 * 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.
/** * 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.
/** * 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.
/** * 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.
/** * 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.
/** * 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(); }