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/*
* Copyright (C) 2019 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.systemui.tracing;
import static com.android.systemui.tracing.nano.SystemUiTraceFileProto.MAGIC_NUMBER_H;
import static com.android.systemui.tracing.nano.SystemUiTraceFileProto.MAGIC_NUMBER_L;
import android.content.Context;
import android.os.SystemClock;
import androidx.annotation.NonNull;
import com.android.systemui.Dumpable;
import com.android.systemui.dagger.SysUISingleton;
import com.android.systemui.dump.DumpManager;
import com.android.systemui.shared.tracing.FrameProtoTracer;
import com.android.systemui.shared.tracing.FrameProtoTracer.ProtoTraceParams;
import com.android.systemui.shared.tracing.ProtoTraceable;
import com.android.systemui.tracing.nano.SystemUiTraceEntryProto;
import com.android.systemui.tracing.nano.SystemUiTraceFileProto;
import com.android.systemui.tracing.nano.SystemUiTraceProto;
import com.google.protobuf.nano.MessageNano;
import java.io.File;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Queue;
import javax.inject.Inject;
/**
* Controller for coordinating winscope proto tracing.
*/
@SysUISingleton
public class ProtoTracer implements
Dumpable,
ProtoTraceParams<
MessageNano,
SystemUiTraceFileProto,
SystemUiTraceEntryProto,
SystemUiTraceProto> {
private static final String TAG = "ProtoTracer";
private static final long MAGIC_NUMBER_VALUE = ((long) MAGIC_NUMBER_H << 32) | MAGIC_NUMBER_L;
private final Context mContext;
private final FrameProtoTracer<MessageNano, SystemUiTraceFileProto, SystemUiTraceEntryProto,
SystemUiTraceProto> mProtoTracer;
@Inject
public ProtoTracer(Context context, DumpManager dumpManager) {
mContext = context;
mProtoTracer = new FrameProtoTracer<>(this);
dumpManager.registerDumpable(this);
}
@Override
public File getTraceFile() {
return new File(mContext.getFilesDir(), "sysui_trace.pb");
}
@Override
public SystemUiTraceFileProto getEncapsulatingTraceProto() {
return new SystemUiTraceFileProto();
}
@Override
public SystemUiTraceEntryProto updateBufferProto(SystemUiTraceEntryProto reuseObj,
ArrayList<ProtoTraceable<SystemUiTraceProto>> traceables) {
SystemUiTraceEntryProto proto = reuseObj != null
? reuseObj
: new SystemUiTraceEntryProto();
proto.elapsedRealtimeNanos = SystemClock.elapsedRealtimeNanos();
proto.systemUi = proto.systemUi != null ? proto.systemUi : new SystemUiTraceProto();
for (ProtoTraceable t : traceables) {
t.writeToProto(proto.systemUi);
}
return proto;
}
@Override
public byte[] serializeEncapsulatingProto(SystemUiTraceFileProto encapsulatingProto,
Queue<SystemUiTraceEntryProto> buffer) {
encapsulatingProto.magicNumber = MAGIC_NUMBER_VALUE;
encapsulatingProto.entry = buffer.toArray(new SystemUiTraceEntryProto[0]);
return MessageNano.toByteArray(encapsulatingProto);
}
@Override
public byte[] getProtoBytes(MessageNano proto) {
return MessageNano.toByteArray(proto);
}
@Override
public int getProtoSize(MessageNano proto) {
return proto.getCachedSize();
}
public void start() {
mProtoTracer.start();
}
public void stop() {
mProtoTracer.stop();
}
public boolean isEnabled() {
return mProtoTracer.isEnabled();
}
public void add(ProtoTraceable<SystemUiTraceProto> traceable) {
mProtoTracer.add(traceable);
}
public void remove(ProtoTraceable<SystemUiTraceProto> traceable) {
mProtoTracer.remove(traceable);
}
public void scheduleFrameUpdate() {
mProtoTracer.scheduleFrameUpdate();
}
public void update() {
mProtoTracer.update();
}
@Override
public void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull String[] args) {
pw.println("ProtoTracer:");
pw.print(" "); pw.println("enabled: " + mProtoTracer.isEnabled());
pw.print(" "); pw.println("usagePct: " + mProtoTracer.getBufferUsagePct());
pw.print(" "); pw.println("file: " + getTraceFile());
}
}
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