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Diffstat (limited to 'core/java/android/ddm/DdmHandleHeap.java')
| -rw-r--r-- | core/java/android/ddm/DdmHandleHeap.java | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/core/java/android/ddm/DdmHandleHeap.java b/core/java/android/ddm/DdmHandleHeap.java new file mode 100644 index 0000000..54457c2 --- /dev/null +++ b/core/java/android/ddm/DdmHandleHeap.java @@ -0,0 +1,194 @@ +/* + * 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 org.apache.harmony.dalvik.ddmc.DdmVmInternal; +import android.util.Config; +import android.util.Log; +import java.nio.ByteBuffer; + +/** + * Handle thread-related traffic. + */ +public class DdmHandleHeap extends ChunkHandler { + + public static final int CHUNK_HPIF = type("HPIF"); + public static final int CHUNK_HPSG = type("HPSG"); + public static final int CHUNK_NHSG = type("NHSG"); + public static final int CHUNK_HPGC = type("HPGC"); + public static final int CHUNK_REAE = type("REAE"); + public static final int CHUNK_REAQ = type("REAQ"); + public static final int CHUNK_REAL = type("REAL"); + + private static DdmHandleHeap mInstance = new DdmHandleHeap(); + + + /* singleton, do not instantiate */ + private DdmHandleHeap() {} + + /** + * Register for the messages we're interested in. + */ + public static void register() { + DdmServer.registerHandler(CHUNK_HPIF, mInstance); + DdmServer.registerHandler(CHUNK_HPSG, mInstance); + DdmServer.registerHandler(CHUNK_NHSG, mInstance); + DdmServer.registerHandler(CHUNK_HPGC, mInstance); + DdmServer.registerHandler(CHUNK_REAE, mInstance); + DdmServer.registerHandler(CHUNK_REAQ, mInstance); + DdmServer.registerHandler(CHUNK_REAL, 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) { + if (Config.LOGV) + Log.v("ddm-heap", "Handling " + name(request.type) + " chunk"); + int type = request.type; + + if (type == CHUNK_HPIF) { + return handleHPIF(request); + } else if (type == CHUNK_HPSG) { + return handleHPSGNHSG(request, false); + } else if (type == CHUNK_NHSG) { + return handleHPSGNHSG(request, true); + } else if (type == CHUNK_HPGC) { + return handleHPGC(request); + } else if (type == CHUNK_REAE) { + return handleREAE(request); + } else if (type == CHUNK_REAQ) { + return handleREAQ(request); + } else if (type == CHUNK_REAL) { + return handleREAL(request); + } else { + throw new RuntimeException("Unknown packet " + + ChunkHandler.name(type)); + } + } + + /* + * Handle a "HeaP InFo request". + */ + private Chunk handleHPIF(Chunk request) { + ByteBuffer in = wrapChunk(request); + + int when = in.get(); + if (Config.LOGV) + Log.v("ddm-heap", "Heap segment enable: when=" + when); + + boolean ok = DdmVmInternal.heapInfoNotify(when); + if (!ok) { + return createFailChunk(1, "Unsupported HPIF what"); + } else { + return null; // empty response + } + } + + /* + * Handle a "HeaP SeGment" or "Native Heap SeGment" request. + */ + private Chunk handleHPSGNHSG(Chunk request, boolean isNative) { + ByteBuffer in = wrapChunk(request); + + int when = in.get(); + int what = in.get(); + if (Config.LOGV) + Log.v("ddm-heap", "Heap segment enable: when=" + when + + ", what=" + what + ", isNative=" + isNative); + + boolean ok = DdmVmInternal.heapSegmentNotify(when, what, isNative); + if (!ok) { + return createFailChunk(1, "Unsupported HPSG what/when"); + } else { + // TODO: if "when" is non-zero and we want to see a dump + // right away, initiate a GC. + return null; // empty response + } + } + + /* + * Handle a "HeaP Garbage Collection" request. + */ + private Chunk handleHPGC(Chunk request) { + //ByteBuffer in = wrapChunk(request); + + if (Config.LOGD) + Log.d("ddm-heap", "Heap GC request"); + System.gc(); + + return null; // empty response + } + + /* + * Handle a "REcent Allocation Enable" request. + */ + private Chunk handleREAE(Chunk request) { + ByteBuffer in = wrapChunk(request); + boolean enable; + + enable = (in.get() != 0); + + if (Config.LOGD) + Log.d("ddm-heap", "Recent allocation enable request: " + enable); + + DdmVmInternal.enableRecentAllocations(enable); + + return null; // empty response + } + + /* + * Handle a "REcent Allocation Query" request. + */ + private Chunk handleREAQ(Chunk request) { + //ByteBuffer in = wrapChunk(request); + + byte[] reply = new byte[1]; + reply[0] = DdmVmInternal.getRecentAllocationStatus() ? (byte)1 :(byte)0; + return new Chunk(CHUNK_REAQ, reply, 0, reply.length); + } + + /* + * Handle a "REcent ALlocations" request. + */ + private Chunk handleREAL(Chunk request) { + //ByteBuffer in = wrapChunk(request); + + if (Config.LOGD) + Log.d("ddm-heap", "Recent allocations request"); + + /* generate the reply in a ready-to-go format */ + byte[] reply = DdmVmInternal.getRecentAllocations(); + return new Chunk(CHUNK_REAL, reply, 0, reply.length); + } +} + |