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/*
* Copyright (C) 2013 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.tools.perflib.vmtrace;
import com.android.utils.SparseArray;
import com.google.common.base.Joiner;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* The {@link VmTraceData} class stores all the information from a Dalvik method trace file.
* Specifically, it provides:
* <ul>
* <li>A mapping from thread ids to thread names.</li>
* <li>A mapping from method ids to {@link MethodInfo}</li>
* <li>A mapping from each thread to the list of call stacks ({@link Call}) on that thread.</li>
* </ul>
*/
public class VmTraceData {
public static enum ClockType { THREAD_CPU, WALL, DUAL }
private final int mVersion;
private final boolean mDataFileOverflow;
private final ClockType mClockType;
private final String mVm;
private final Map<String, String> mTraceProperties;
/** Map from thread ids to thread names. */
private final SparseArray<String> mThreads;
/** Map from method id to method info. */
private final Map<Long,MethodInfo> mMethods;
/** Map from thread id to list of call stacks invoked in that thread */
private final SparseArray<List<Call>> mCalls;
private VmTraceData(Builder b) {
mVersion = b.mVersion;
mDataFileOverflow = b.mDataFileOverflow;
mClockType = b.mClockType;
mVm = b.mVm;
mTraceProperties = b.mProperties;
mThreads = b.mThreads;
mMethods = b.mMethods;
mCalls = b.mCalls;
}
public int getVersion() {
return mVersion;
}
public boolean isDataFileOverflow() {
return mDataFileOverflow;
}
public ClockType getClockType() {
return mClockType;
}
public String getVm() {
return mVm;
}
public Map<String, String> getTraceProperties() {
return mTraceProperties;
}
public SparseArray<String> getThreads() {
return mThreads;
}
public Map<Long,MethodInfo> getMethods() {
return mMethods;
}
public MethodInfo getMethod(long methodId) {
return mMethods.get(methodId);
}
public List<Call> getCalls(int threadId) {
return mCalls.get(threadId);
}
public static class Builder {
private static final boolean DEBUG = false;
private int mVersion;
private boolean mDataFileOverflow;
private ClockType mClockType = ClockType.THREAD_CPU;
private String mVm = "";
private final Map<String, String> mProperties = new HashMap<String, String>(10);
/** Map from thread ids to thread names. */
private final SparseArray<String> mThreads = new SparseArray<String>(10);
/** Map from method id to method info. */
private final Map<Long,MethodInfo> mMethods = new HashMap<Long, MethodInfo>(100);
/** Map from thread id to per thread stack call reconstructor. */
private final SparseArray<CallStackReconstructor> mStackReconstructors
= new SparseArray<CallStackReconstructor>(10);
/** Map from thread id to list of call stacks invoked in that thread */
private final SparseArray<List<Call>> mCalls = new SparseArray<List<Call>>(10);
public void setVersion(int version) {
mVersion = version;
}
public int getVersion() {
return mVersion;
}
public void setDataFileOverflow(boolean dataFileOverflow) {
mDataFileOverflow = dataFileOverflow;
}
public void setClockType(ClockType clockType) {
mClockType = clockType;
}
public ClockType getClockType() {
return mClockType;
}
public void setProperty(String key, String value) {
mProperties.put(key, value);
}
public void setVm(String vm) {
mVm = vm;
}
public void addThread(int id, String name) {
mThreads.put(id, name);
}
public void addMethod(long id, MethodInfo info) {
mMethods.put(id, info);
}
public void addMethodAction(int threadId, long methodId, TraceAction methodAction,
int threadTime, int globalTime) {
MethodInfo methodInfo = mMethods.get(methodId);
// create thread info if it doesn't exist
if (mThreads.get(threadId) == null) {
mThreads.put(threadId, String.format("Thread id: %1$d", threadId));
}
// create method info if it doesn't exist
if (mMethods.get(methodId) == null) {
MethodInfo info = new MethodInfo(methodId, "unknown", "unknown", "unknown",
"unknown", -1);
mMethods.put(methodId, info);
}
if (DEBUG) {
System.out.println(
methodId + ": " + methodAction + ": thread: " + mThreads.get(threadId)
+ ", method: "
+ methodInfo.className + "/" + methodInfo.methodName + ":"
+ methodInfo.signature);
}
CallStackReconstructor reconstructor = mStackReconstructors.get(threadId);
if (reconstructor == null) {
reconstructor = new CallStackReconstructor();
mStackReconstructors.put(threadId, reconstructor);
}
reconstructor.addTraceAction(methodId, methodAction, threadTime, globalTime);
}
public VmTraceData build() {
for (int i = 0; i < mStackReconstructors.size(); i++) {
int threadId = mStackReconstructors.keyAt(i);
CallStackReconstructor reconstructor = mStackReconstructors.valueAt(i);
mCalls.put(threadId, reconstructor.getTopLevelCallees());
}
return new VmTraceData(this);
}
}
}
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