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/*
* Copyright (C) 2009 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 com.android.ddmlib;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Handle heap status updates.
*/
final class HandleProfiling extends ChunkHandler {
public static final int CHUNK_MPRS = type("MPRS");
public static final int CHUNK_MPRE = type("MPRE");
public static final int CHUNK_MPRQ = type("MPRQ");
private static final HandleProfiling mInst = new HandleProfiling();
private HandleProfiling() {}
/**
* Register for the packets we expect to get from the client.
*/
public static void register(MonitorThread mt) {
mt.registerChunkHandler(CHUNK_MPRE, mInst);
mt.registerChunkHandler(CHUNK_MPRQ, mInst);
}
/**
* Client is ready.
*/
@Override
public void clientReady(Client client) throws IOException {}
/**
* Client went away.
*/
@Override
public void clientDisconnected(Client client) {}
/**
* Chunk handler entry point.
*/
@Override
public void handleChunk(Client client, int type, ByteBuffer data,
boolean isReply, int msgId) {
Log.d("ddm-prof", "handling " + ChunkHandler.name(type));
if (type == CHUNK_MPRE) {
handleMPRE(client, data);
} else if (type == CHUNK_MPRQ) {
handleMPRQ(client, data);
} else {
handleUnknownChunk(client, type, data, isReply, msgId);
}
}
/**
* Send a MPRS (Method PRofiling Start) request to the client.
*
* @param fileName is the name of the file to which profiling data
* will be written (on the device); it will have ".trace"
* appended if necessary
* @param bufferSize is the desired buffer size in bytes (8MB is good)
* @param flags should be zero
*/
public static void sendMPRS(Client client, String fileName, int bufferSize,
int flags) throws IOException {
ByteBuffer rawBuf = allocBuffer(3*4 + fileName.length() * 2);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
buf.putInt(bufferSize);
buf.putInt(flags);
buf.putInt(fileName.length());
putString(buf, fileName);
finishChunkPacket(packet, CHUNK_MPRS, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_MPRS) + " '" + fileName
+ "', size=" + bufferSize + ", flags=" + flags);
client.sendAndConsume(packet, mInst);
}
/**
* Send a MPRE (Method PRofiling End) request to the client.
*/
public static void sendMPRE(Client client) throws IOException {
ByteBuffer rawBuf = allocBuffer(0);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
// no data
finishChunkPacket(packet, CHUNK_MPRE, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_MPRE));
client.sendAndConsume(packet, mInst);
}
/**
* Handle notification that method profiling has finished writing
* data to disk.
*/
private void handleMPRE(Client client, ByteBuffer data) {
byte result;
result = data.get();
if (result == 0) {
Log.i("ddm-prof", "Method profiling has finished");
} else {
Log.w("ddm-prof", "Method profiling has failed (check device log)");
}
// TODO: stuff
}
/**
* Send a MPRQ (Method PRofiling Query) request to the client.
*/
public static void sendMPRQ(Client client) throws IOException {
ByteBuffer rawBuf = allocBuffer(0);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
// no data
finishChunkPacket(packet, CHUNK_MPRQ, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_MPRQ));
client.sendAndConsume(packet, mInst);
}
/**
* Receive response to query.
*/
private void handleMPRQ(Client client, ByteBuffer data) {
byte result;
result = data.get();
if (result == 0) {
Log.i("ddm-prof", "Method profiling is not running");
} else {
Log.i("ddm-prof", "Method profiling is running");
}
}
}
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