com.android.ddmlib.HandleProfiling Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of ddmlib Show documentation
Show all versions of ddmlib Show documentation
Library providing APIs to talk to Android devices
/*
* 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 com.android.ddmlib.ClientData.IMethodProfilingHandler;
import com.android.ddmlib.ClientData.MethodProfilingStatus;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.concurrent.TimeUnit;
/**
* 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_MPSS = type("MPSS");
public static final int CHUNK_MPSE = type("MPSE");
public static final int CHUNK_SPSS = type("SPSS");
public static final int CHUNK_SPSE = type("SPSE");
public static final int CHUNK_MPRQ = type("MPRQ");
public static final int CHUNK_FAIL = type("FAIL");
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_MPSE, 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_MPSE) {
handleMPSE(client, data);
} else if (type == CHUNK_MPRQ) {
handleMPRQ(client, data);
} else if (type == CHUNK_FAIL) {
handleFAIL(client, data);
} else {
handleUnknownChunk(client, type, data, isReply, msgId);
}
}
/**
* Send a MPRS (Method PRofiling Start) request to the client.
*
* The arguments to this method will eventually be passed to
* android.os.Debug.startMethodTracing() on the device.
*
* @param fileName is the name of the file to which profiling data
* will be written (on the device); it will have {@link DdmConstants#DOT_TRACE}
* appended if necessary
* @param bufferSize is the desired buffer size in bytes (8MB is good)
* @param flags see startMethodTracing() docs; use 0 for default behavior
*/
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());
ByteBufferUtil.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);
// record the filename we asked for.
client.getClientData().setPendingMethodProfiling(fileName);
// send a status query. this ensure that the status is properly updated if for some
// reason starting the tracing failed.
sendMPRQ(client);
}
/**
* 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;
// get the filename and make the client not have pending HPROF dump anymore.
String filename = client.getClientData().getPendingMethodProfiling();
client.getClientData().setPendingMethodProfiling(null);
result = data.get();
// get the app-level handler for method tracing dump
IMethodProfilingHandler handler = ClientData.getMethodProfilingHandler();
if (handler != null) {
if (result == 0) {
handler.onSuccess(filename, client);
Log.d("ddm-prof", "Method profiling has finished");
} else {
handler.onEndFailure(client, null /*message*/);
Log.w("ddm-prof", "Method profiling has failed (check device log)");
}
}
client.getClientData().setMethodProfilingStatus(MethodProfilingStatus.OFF);
client.update(Client.CHANGE_METHOD_PROFILING_STATUS);
}
/**
* Send a MPSS (Method Profiling Streaming Start) request to the client.
*
* The arguments to this method will eventually be passed to
* android.os.Debug.startMethodTracing() on the device.
*
* @param bufferSize is the desired buffer size in bytes (8MB is good)
* @param flags see startMethodTracing() docs; use 0 for default behavior
*/
public static void sendMPSS(Client client, int bufferSize,
int flags) throws IOException {
ByteBuffer rawBuf = allocBuffer(2*4);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
buf.putInt(bufferSize);
buf.putInt(flags);
finishChunkPacket(packet, CHUNK_MPSS, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_MPSS)
+ "', size=" + bufferSize + ", flags=" + flags);
client.sendAndConsume(packet, mInst);
// send a status query. this ensure that the status is properly updated if for some
// reason starting the tracing failed.
sendMPRQ(client);
}
/**
* Send a SPSS (Sampling Profiling Streaming Start) request to the client.
*
* @param bufferSize is the desired buffer size in bytes (8MB is good)
* @param samplingInterval sampling interval
* @param samplingIntervalTimeUnits units for sampling interval
*/
public static void sendSPSS(Client client, int bufferSize, int samplingInterval,
TimeUnit samplingIntervalTimeUnits) throws IOException {
int interval = (int) samplingIntervalTimeUnits.toMicros(samplingInterval);
ByteBuffer rawBuf = allocBuffer(3*4);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
buf.putInt(bufferSize);
buf.putInt(0); // flags
buf.putInt(interval);
finishChunkPacket(packet, CHUNK_SPSS, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_SPSS)
+ "', size=" + bufferSize + ", flags=0, samplingInterval=" + interval);
client.sendAndConsume(packet, mInst);
// send a status query. this ensure that the status is properly updated if for some
// reason starting the tracing failed.
sendMPRQ(client);
}
/**
* Send a MPSE (Method Profiling Streaming End) request to the client.
*/
public static void sendMPSE(Client client) throws IOException {
ByteBuffer rawBuf = allocBuffer(0);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
// no data
finishChunkPacket(packet, CHUNK_MPSE, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_MPSE));
client.sendAndConsume(packet, mInst);
}
/**
* Send a SPSE (Sampling Profiling Streaming End) request to the client.
*/
public static void sendSPSE(Client client) throws IOException {
ByteBuffer rawBuf = allocBuffer(0);
JdwpPacket packet = new JdwpPacket(rawBuf);
ByteBuffer buf = getChunkDataBuf(rawBuf);
// no data
finishChunkPacket(packet, CHUNK_SPSE, buf.position());
Log.d("ddm-prof", "Sending " + name(CHUNK_SPSE));
client.sendAndConsume(packet, mInst);
}
/**
* Handle incoming profiling data. The MPSE packet includes the
* complete .trace file.
*/
private void handleMPSE(Client client, ByteBuffer data) {
IMethodProfilingHandler handler = ClientData.getMethodProfilingHandler();
if (handler != null) {
byte[] stuff = new byte[data.capacity()];
data.get(stuff, 0, stuff.length);
Log.d("ddm-prof", "got trace file, size: " + stuff.length + " bytes");
handler.onSuccess(stuff, client);
}
client.getClientData().setMethodProfilingStatus(MethodProfilingStatus.OFF);
client.update(Client.CHANGE_METHOD_PROFILING_STATUS);
}
/**
* 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) {
client.getClientData().setMethodProfilingStatus(MethodProfilingStatus.OFF);
Log.d("ddm-prof", "Method profiling is not running");
} else if (result == 1) {
client.getClientData().setMethodProfilingStatus(MethodProfilingStatus.TRACER_ON);
Log.d("ddm-prof", "Method tracing is active");
} else if (result == 2) {
client.getClientData().setMethodProfilingStatus(MethodProfilingStatus.SAMPLER_ON);
Log.d("ddm-prof", "Sampler based profiling is active");
}
client.update(Client.CHANGE_METHOD_PROFILING_STATUS);
}
private void handleFAIL(Client client, ByteBuffer data) {
/*int errorCode =*/ data.getInt();
int length = data.getInt() * 2;
String message = null;
if (length > 0) {
byte[] messageBuffer = new byte[length];
data.get(messageBuffer, 0, length);
message = new String(messageBuffer);
}
// this can be sent if
// - MPRS failed (like wrong permission)
// - MPSE failed for whatever reason
String filename = client.getClientData().getPendingMethodProfiling();
if (filename != null) {
// reset the pending file.
client.getClientData().setPendingMethodProfiling(null);
// and notify of failure
IMethodProfilingHandler handler = ClientData.getMethodProfilingHandler();
if (handler != null) {
handler.onStartFailure(client, message);
}
} else {
// this is MPRE
// notify of failure
IMethodProfilingHandler handler = ClientData.getMethodProfilingHandler();
if (handler != null) {
handler.onEndFailure(client, message);
}
}
// send a query to know the current status
try {
sendMPRQ(client);
} catch (IOException e) {
Log.e("HandleProfiling", e);
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy