Winson Chung | a657ac9 | 2019-12-09 16:43:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.tracing; |
| 18 | |
| 19 | import static com.android.systemui.tracing.nano.SystemUiTraceFileProto.MAGIC_NUMBER_H; |
| 20 | import static com.android.systemui.tracing.nano.SystemUiTraceFileProto.MAGIC_NUMBER_L; |
| 21 | |
| 22 | import android.content.Context; |
| 23 | import android.os.SystemClock; |
| 24 | |
| 25 | import androidx.annotation.NonNull; |
| 26 | |
| 27 | import com.android.systemui.DumpController; |
| 28 | import com.android.systemui.Dumpable; |
| 29 | import com.android.systemui.shared.tracing.FrameProtoTracer; |
| 30 | import com.android.systemui.shared.tracing.FrameProtoTracer.ProtoTraceParams; |
| 31 | import com.android.systemui.shared.tracing.ProtoTraceable; |
| 32 | import com.android.systemui.tracing.nano.SystemUiTraceProto; |
| 33 | import com.android.systemui.tracing.nano.SystemUiTraceEntryProto; |
| 34 | import com.android.systemui.tracing.nano.SystemUiTraceFileProto; |
| 35 | |
| 36 | import com.google.protobuf.nano.MessageNano; |
| 37 | |
| 38 | import java.io.File; |
| 39 | import java.io.FileDescriptor; |
| 40 | import java.io.PrintWriter; |
| 41 | import java.util.ArrayList; |
| 42 | import java.util.Queue; |
| 43 | |
| 44 | import javax.inject.Inject; |
| 45 | import javax.inject.Singleton; |
| 46 | |
| 47 | /** |
| 48 | * Controller for coordinating winscope proto tracing. |
| 49 | */ |
| 50 | @Singleton |
| 51 | public class ProtoTracer implements Dumpable, ProtoTraceParams<MessageNano, SystemUiTraceFileProto, |
| 52 | SystemUiTraceEntryProto, SystemUiTraceProto> { |
| 53 | |
| 54 | private static final String TAG = "ProtoTracer"; |
| 55 | private static final long MAGIC_NUMBER_VALUE = ((long) MAGIC_NUMBER_H << 32) | MAGIC_NUMBER_L; |
| 56 | |
| 57 | private final Context mContext; |
| 58 | private final FrameProtoTracer<MessageNano, SystemUiTraceFileProto, SystemUiTraceEntryProto, |
| 59 | SystemUiTraceProto> mProtoTracer; |
| 60 | |
| 61 | @Inject |
| 62 | public ProtoTracer(Context context, DumpController dumpController) { |
| 63 | mContext = context; |
| 64 | mProtoTracer = new FrameProtoTracer<>(this); |
| 65 | dumpController.registerDumpable(this); |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public File getTraceFile() { |
| 70 | return new File(mContext.getFilesDir(), "sysui_trace.pb"); |
| 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public SystemUiTraceFileProto getEncapsulatingTraceProto() { |
| 75 | return new SystemUiTraceFileProto(); |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public SystemUiTraceEntryProto updateBufferProto(SystemUiTraceEntryProto reuseObj, |
| 80 | ArrayList<ProtoTraceable<SystemUiTraceProto>> traceables) { |
| 81 | SystemUiTraceEntryProto proto = reuseObj != null |
| 82 | ? reuseObj |
| 83 | : new SystemUiTraceEntryProto(); |
| 84 | proto.elapsedRealtimeNanos = SystemClock.elapsedRealtimeNanos(); |
| 85 | proto.systemUi = proto.systemUi != null ? proto.systemUi : new SystemUiTraceProto(); |
| 86 | for (ProtoTraceable t : traceables) { |
| 87 | t.writeToProto(proto.systemUi); |
| 88 | } |
| 89 | return proto; |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public byte[] serializeEncapsulatingProto(SystemUiTraceFileProto encapsulatingProto, |
| 94 | Queue<SystemUiTraceEntryProto> buffer) { |
| 95 | encapsulatingProto.magicNumber = MAGIC_NUMBER_VALUE; |
| 96 | encapsulatingProto.entry = buffer.toArray(new SystemUiTraceEntryProto[0]); |
| 97 | return MessageNano.toByteArray(encapsulatingProto); |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public byte[] getProtoBytes(MessageNano proto) { |
| 102 | return MessageNano.toByteArray(proto); |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public int getProtoSize(MessageNano proto) { |
| 107 | return proto.getCachedSize(); |
| 108 | } |
| 109 | |
| 110 | public void start() { |
| 111 | mProtoTracer.start(); |
| 112 | } |
| 113 | |
| 114 | public void stop() { |
| 115 | mProtoTracer.stop(); |
| 116 | } |
| 117 | |
| 118 | public boolean isEnabled() { |
| 119 | return mProtoTracer.isEnabled(); |
| 120 | } |
| 121 | |
| 122 | public void add(ProtoTraceable<SystemUiTraceProto> traceable) { |
| 123 | mProtoTracer.add(traceable); |
| 124 | } |
| 125 | |
| 126 | public void remove(ProtoTraceable<SystemUiTraceProto> traceable) { |
| 127 | mProtoTracer.remove(traceable); |
| 128 | } |
| 129 | |
| 130 | public void scheduleFrameUpdate() { |
| 131 | mProtoTracer.scheduleFrameUpdate(); |
| 132 | } |
| 133 | |
| 134 | public void update() { |
| 135 | mProtoTracer.update(); |
| 136 | } |
| 137 | |
| 138 | @Override |
| 139 | public void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull String[] args) { |
| 140 | pw.println("ProtoTracer:"); |
| 141 | pw.print(" "); pw.println("enabled: " + mProtoTracer.isEnabled()); |
| 142 | pw.print(" "); pw.println("usagePct: " + mProtoTracer.getBufferUsagePct()); |
| 143 | pw.print(" "); pw.println("file: " + getTraceFile()); |
| 144 | } |
| 145 | } |