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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:45 -0800
commitd83a98f4ce9cfa908f5c54bbd70f03eec07e7553 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /core/java/android/ddm/DdmHandleThread.java
parent076357b8567458d4b6dfdcf839ef751634cd2bfb (diff)
auto import from //depot/cupcake/@135843
Diffstat (limited to 'core/java/android/ddm/DdmHandleThread.java')
-rw-r--r--core/java/android/ddm/DdmHandleThread.java182
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);
- }
-}
-