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/*
* 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.Config;
import android.util.Log;
import android.os.Debug;
import java.nio.ByteBuffer;
/**
* Handle a HELO chunk.
*/
public class DdmHandleHello extends ChunkHandler {
public static final int CHUNK_HELO = type("HELO");
public static final int CHUNK_WAIT = type("WAIT");
private static DdmHandleHello mInstance = new DdmHandleHello();
/* singleton, do not instantiate */
private DdmHandleHello() {}
/**
* Register for the messages we're interested in.
*/
public static void register() {
DdmServer.registerHandler(CHUNK_HELO, mInstance);
}
/**
* Called when the DDM server connects. The handler is allowed to
* send messages to the server.
*/
public void connected() {
if (Config.LOGV)
Log.v("ddm-hello", "Connected!");
if (true) {
/* test spontaneous transmission */
byte[] data = new byte[] { 0, 1, 2, 3, 4, -4, -3, -2, -1, 127 };
Chunk testChunk =
new Chunk(ChunkHandler.type("TEST"), data, 1, data.length-2);
DdmServer.sendChunk(testChunk);
}
}
/**
* Called when the DDM server disconnects. Can be used to disable
* periodic transmissions or clean up saved state.
*/
public void disconnected() {
if (Config.LOGV)
Log.v("ddm-hello", "Disconnected!");
}
/**
* Handle a chunk of data. We're only registered for "HELO".
*/
public Chunk handleChunk(Chunk request) {
if (Config.LOGV)
Log.v("ddm-hello", "Handling " + name(request.type) + " chunk");
if (false)
return createFailChunk(123, "This is a test");
/*
* Process the request.
*/
ByteBuffer in = wrapChunk(request);
int serverProtoVers = in.getInt();
if (Config.LOGV)
Log.v("ddm-hello", "Server version is " + serverProtoVers);
/*
* Create a response.
*/
String vmName = System.getProperty("java.vm.name", "?");
String vmVersion = System.getProperty("java.vm.version", "?");
String vmIdent = vmName + " v" + vmVersion;
//String appName = android.app.ActivityThread.currentPackageName();
//if (appName == null)
// appName = "unknown";
String appName = DdmHandleAppName.getAppName();
ByteBuffer out = ByteBuffer.allocate(16
+ vmIdent.length()*2 + appName.length()*2);
out.order(ChunkHandler.CHUNK_ORDER);
out.putInt(DdmServer.CLIENT_PROTOCOL_VERSION);
out.putInt(android.os.Process.myPid());
out.putInt(vmIdent.length());
out.putInt(appName.length());
putString(out, vmIdent);
putString(out, appName);
Chunk reply = new Chunk(CHUNK_HELO, out);
/*
* Take the opportunity to inform DDMS if we are waiting for a
* debugger to attach.
*/
if (Debug.waitingForDebugger())
sendWAIT(0);
return reply;
}
/**
* Send up a WAIT chunk. The only currently defined value for "reason"
* is zero, which means "waiting for a debugger".
*/
public static void sendWAIT(int reason) {
byte[] data = new byte[] { (byte) reason };
Chunk waitChunk = new Chunk(CHUNK_WAIT, data, 0, 1);
DdmServer.sendChunk(waitChunk);
}
}
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