diff options
| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:45 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:45 -0800 |
| commit | d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 (patch) | |
| tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /core/java/android/ddm/DdmHandleThread.java | |
| parent | 076357b8567458d4b6dfdcf839ef751634cd2bfb (diff) | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'core/java/android/ddm/DdmHandleThread.java')
| -rw-r--r-- | core/java/android/ddm/DdmHandleThread.java | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/core/java/android/ddm/DdmHandleThread.java b/core/java/android/ddm/DdmHandleThread.java deleted file mode 100644 index c3079885e0d7..000000000000 --- a/core/java/android/ddm/DdmHandleThread.java +++ /dev/null @@ -1,182 +0,0 @@ -/* - * 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 DdmHandleThread extends ChunkHandler { - - public static final int CHUNK_THEN = type("THEN"); - public static final int CHUNK_THCR = type("THCR"); - public static final int CHUNK_THDE = type("THDE"); - public static final int CHUNK_THST = type("THST"); - public static final int CHUNK_STKL = type("STKL"); - - private static DdmHandleThread mInstance = new DdmHandleThread(); - - - /* singleton, do not instantiate */ - private DdmHandleThread() {} - - /** - * Register for the messages we're interested in. - */ - public static void register() { - DdmServer.registerHandler(CHUNK_THEN, mInstance); - DdmServer.registerHandler(CHUNK_THST, mInstance); - DdmServer.registerHandler(CHUNK_STKL, 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-thread", "Handling " + name(request.type) + " chunk"); - int type = request.type; - - if (type == CHUNK_THEN) { - return handleTHEN(request); - } else if (type == CHUNK_THST) { - return handleTHST(request); - } else if (type == CHUNK_STKL) { - return handleSTKL(request); - } else { - throw new RuntimeException("Unknown packet " - + ChunkHandler.name(type)); - } - } - - /* - * Handle a "THread notification ENable" request. - */ - private Chunk handleTHEN(Chunk request) { - ByteBuffer in = wrapChunk(request); - - boolean enable = (in.get() != 0); - //Log.i("ddm-thread", "Thread notify enable: " + enable); - - DdmVmInternal.threadNotify(enable); - return null; // empty response - } - - /* - * Handle a "THread STatus" request. This is constructed by the VM. - */ - private Chunk handleTHST(Chunk request) { - ByteBuffer in = wrapChunk(request); - // currently nothing to read from "in" - - //Log.d("ddm-thread", "Thread status request"); - - byte[] status = DdmVmInternal.getThreadStats(); - if (status != null) - return new Chunk(CHUNK_THST, status, 0, status.length); - else - return createFailChunk(1, "Can't build THST chunk"); - } - - /* - * Handle a STacK List request. - * - * This is done by threadId, which isn't great since those are - * recycled. We need a thread serial ID. The Linux tid is an okay - * answer as it's unlikely to recycle at the exact wrong moment. - * However, we're using the short threadId in THST messages, so we - * use them here for consistency. (One thought is to keep the current - * thread ID in the low 16 bits and somehow serialize the top 16 bits.) - */ - private Chunk handleSTKL(Chunk request) { - ByteBuffer in = wrapChunk(request); - int threadId; - - threadId = in.getInt(); - - //Log.d("ddm-thread", "Stack list request " + threadId); - - StackTraceElement[] trace = DdmVmInternal.getStackTraceById(threadId); - if (trace == null) { - return createFailChunk(1, "Stack trace unavailable"); - } else { - return createStackChunk(trace, threadId); - } - } - - /* - * Serialize a StackTraceElement[] into an STKL chunk. - * - * We include the threadId in the response so the other side doesn't have - * to match up requests and responses as carefully. - */ - private Chunk createStackChunk(StackTraceElement[] trace, int threadId) { - int bufferSize = 0; - - bufferSize += 4; // version, flags, whatever - bufferSize += 4; // thread ID - bufferSize += 4; // frame count - for (StackTraceElement elem : trace) { - bufferSize += 4 + elem.getClassName().length() * 2; - bufferSize += 4 + elem.getMethodName().length() * 2; - bufferSize += 4; - if (elem.getFileName() != null) - bufferSize += elem.getFileName().length() * 2; - bufferSize += 4; // line number - } - - ByteBuffer out = ByteBuffer.allocate(bufferSize); - out.putInt(0); - out.putInt(threadId); - out.putInt(trace.length); - for (StackTraceElement elem : trace) { - out.putInt(elem.getClassName().length()); - putString(out, elem.getClassName()); - out.putInt(elem.getMethodName().length()); - putString(out, elem.getMethodName()); - if (elem.getFileName() != null) { - out.putInt(elem.getFileName().length()); - putString(out, elem.getFileName()); - } else { - out.putInt(0); - } - out.putInt(elem.getLineNumber()); - } - - return new Chunk(CHUNK_STKL, out); - } -} - |
