Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.server.wm; |
| 18 | |
Vishnu Nair | ab25003 | 2017-11-21 07:32:43 -0800 | [diff] [blame] | 19 | import static android.os.Build.IS_USER; |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 20 | |
Yi Jin | 6c6e9ca | 2018-03-20 16:53:35 -0700 | [diff] [blame] | 21 | import static com.android.server.wm.WindowManagerTraceFileProto.ENTRY; |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 22 | import static com.android.server.wm.WindowManagerTraceFileProto.MAGIC_NUMBER; |
| 23 | import static com.android.server.wm.WindowManagerTraceFileProto.MAGIC_NUMBER_H; |
| 24 | import static com.android.server.wm.WindowManagerTraceFileProto.MAGIC_NUMBER_L; |
Yi Jin | 6c6e9ca | 2018-03-20 16:53:35 -0700 | [diff] [blame] | 25 | import static com.android.server.wm.WindowManagerTraceProto.ELAPSED_REALTIME_NANOS; |
| 26 | import static com.android.server.wm.WindowManagerTraceProto.WHERE; |
| 27 | import static com.android.server.wm.WindowManagerTraceProto.WINDOW_MANAGER_SERVICE; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 28 | |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 29 | import android.annotation.Nullable; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 30 | import android.os.ShellCommand; |
| 31 | import android.os.SystemClock; |
| 32 | import android.os.Trace; |
| 33 | import android.util.Log; |
| 34 | import android.util.proto.ProtoOutputStream; |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 35 | import android.view.Choreographer; |
| 36 | |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 37 | import com.android.server.protolog.ProtoLogImpl; |
Winson Chung | b53b30c | 2019-11-18 21:03:09 -0800 | [diff] [blame] | 38 | import com.android.internal.util.TraceBuffer; |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 39 | |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 40 | import java.io.File; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 41 | import java.io.IOException; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 42 | import java.io.PrintWriter; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 43 | |
| 44 | /** |
| 45 | * A class that allows window manager to dump its state continuously to a trace file, such that a |
| 46 | * time series of window manager state can be analyzed after the fact. |
| 47 | */ |
| 48 | class WindowTracing { |
| 49 | |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 50 | /** |
| 51 | * Maximum buffer size, currently defined as 512 KB |
| 52 | * Size was experimentally defined to fit between 100 to 150 elements. |
| 53 | */ |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 54 | private static final int BUFFER_CAPACITY_CRITICAL = 512 * 1024; |
| 55 | private static final int BUFFER_CAPACITY_TRIM = 2048 * 1024; |
| 56 | private static final int BUFFER_CAPACITY_ALL = 4096 * 1024; |
| 57 | private static final String TRACE_FILENAME = "/data/misc/wmtrace/wm_trace.pb"; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 58 | private static final String TAG = "WindowTracing"; |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 59 | private static final long MAGIC_NUMBER_VALUE = ((long) MAGIC_NUMBER_H << 32) | MAGIC_NUMBER_L; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 60 | |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 61 | private final WindowManagerService mService; |
| 62 | private final Choreographer mChoreographer; |
| 63 | private final WindowManagerGlobalLock mGlobalLock; |
| 64 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 65 | private final Object mEnabledLock = new Object(); |
| 66 | private final File mTraceFile; |
Winson Chung | b53b30c | 2019-11-18 21:03:09 -0800 | [diff] [blame] | 67 | private final TraceBuffer mBuffer; |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 68 | private final Choreographer.FrameCallback mFrameCallback = (frameTimeNanos) -> |
| 69 | log("onFrame" /* where */); |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 70 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 71 | private @WindowTraceLogLevel int mLogLevel = WindowTraceLogLevel.TRIM; |
| 72 | private boolean mLogOnFrame = false; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 73 | private boolean mEnabled; |
| 74 | private volatile boolean mEnabledLockFree; |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 75 | private boolean mScheduled; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 76 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 77 | static WindowTracing createDefaultAndStartLooper(WindowManagerService service, |
| 78 | Choreographer choreographer) { |
| 79 | File file = new File(TRACE_FILENAME); |
| 80 | return new WindowTracing(file, service, choreographer, BUFFER_CAPACITY_TRIM); |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 81 | } |
| 82 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 83 | private WindowTracing(File file, WindowManagerService service, Choreographer choreographer, |
| 84 | int bufferCapacity) { |
| 85 | this(file, service, choreographer, service.mGlobalLock, bufferCapacity); |
| 86 | } |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 87 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 88 | WindowTracing(File file, WindowManagerService service, Choreographer choreographer, |
| 89 | WindowManagerGlobalLock globalLock, int bufferCapacity) { |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 90 | mChoreographer = choreographer; |
| 91 | mService = service; |
| 92 | mGlobalLock = globalLock; |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 93 | mTraceFile = file; |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 94 | mBuffer = new TraceBuffer(bufferCapacity); |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 95 | setLogLevel(WindowTraceLogLevel.TRIM, null /* pw */); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 96 | } |
| 97 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 98 | void startTrace(@Nullable PrintWriter pw) { |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 99 | if (IS_USER) { |
Vishnu Nair | ab25003 | 2017-11-21 07:32:43 -0800 | [diff] [blame] | 100 | logAndPrintln(pw, "Error: Tracing is not supported on user builds."); |
| 101 | return; |
| 102 | } |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 103 | synchronized (mEnabledLock) { |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 104 | ProtoLogImpl.getSingleInstance().startProtoLog(pw); |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 105 | logAndPrintln(pw, "Start tracing to " + mTraceFile + "."); |
| 106 | mBuffer.resetBuffer(); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 107 | mEnabled = mEnabledLockFree = true; |
| 108 | } |
Nataniel Borges | 8a5106c | 2019-03-06 11:31:34 -0800 | [diff] [blame] | 109 | log("trace.enable"); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 110 | } |
| 111 | |
Nataniel Borges | 9e26046 | 2019-02-27 17:02:20 -0800 | [diff] [blame] | 112 | /** |
| 113 | * Stops the trace and write the current buffer to disk |
| 114 | * @param pw Print writer |
| 115 | */ |
Vishnu Nair | c961504 | 2018-01-09 07:23:31 -0800 | [diff] [blame] | 116 | void stopTrace(@Nullable PrintWriter pw) { |
Nataniel Borges | 9e26046 | 2019-02-27 17:02:20 -0800 | [diff] [blame] | 117 | stopTrace(pw, true /* writeToFile */); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Stops the trace |
| 122 | * @param pw Print writer |
| 123 | * @param writeToFile If the current buffer should be written to disk or not |
| 124 | */ |
| 125 | void stopTrace(@Nullable PrintWriter pw, boolean writeToFile) { |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 126 | if (IS_USER) { |
Vishnu Nair | ab25003 | 2017-11-21 07:32:43 -0800 | [diff] [blame] | 127 | logAndPrintln(pw, "Error: Tracing is not supported on user builds."); |
| 128 | return; |
| 129 | } |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 130 | synchronized (mEnabledLock) { |
| 131 | logAndPrintln(pw, "Stop tracing to " + mTraceFile + ". Waiting for traces to flush."); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 132 | mEnabled = mEnabledLockFree = false; |
Nataniel Borges | 5a38bad | 2019-01-03 10:32:03 -0800 | [diff] [blame] | 133 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 134 | if (mEnabled) { |
| 135 | logAndPrintln(pw, "ERROR: tracing was re-enabled while waiting for flush."); |
| 136 | throw new IllegalStateException("tracing enabled while waiting for flush."); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 137 | } |
Nataniel Borges | 9e26046 | 2019-02-27 17:02:20 -0800 | [diff] [blame] | 138 | if (writeToFile) { |
| 139 | writeTraceToFileLocked(); |
| 140 | logAndPrintln(pw, "Trace written to " + mTraceFile + "."); |
| 141 | } |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 142 | } |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 143 | ProtoLogImpl.getSingleInstance().stopProtoLog(pw, writeToFile); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 144 | } |
| 145 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 146 | private void setLogLevel(@WindowTraceLogLevel int logLevel, PrintWriter pw) { |
| 147 | logAndPrintln(pw, "Setting window tracing log level to " + logLevel); |
| 148 | mLogLevel = logLevel; |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 149 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 150 | switch (logLevel) { |
| 151 | case WindowTraceLogLevel.ALL: { |
| 152 | setBufferCapacity(BUFFER_CAPACITY_ALL, pw); |
| 153 | break; |
| 154 | } |
| 155 | case WindowTraceLogLevel.TRIM: { |
| 156 | setBufferCapacity(BUFFER_CAPACITY_TRIM, pw); |
| 157 | break; |
| 158 | } |
| 159 | case WindowTraceLogLevel.CRITICAL: { |
| 160 | setBufferCapacity(BUFFER_CAPACITY_CRITICAL, pw); |
| 161 | break; |
| 162 | } |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 163 | } |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | private void setLogFrequency(boolean onFrame, PrintWriter pw) { |
| 167 | logAndPrintln(pw, "Setting window tracing log frequency to " |
| 168 | + ((onFrame) ? "frame" : "transaction")); |
| 169 | mLogOnFrame = onFrame; |
| 170 | } |
| 171 | |
| 172 | private void setBufferCapacity(int capacity, PrintWriter pw) { |
| 173 | logAndPrintln(pw, "Setting window tracing buffer capacity to " + capacity + "bytes"); |
| 174 | mBuffer.setCapacity(capacity); |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 175 | } |
| 176 | |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 177 | boolean isEnabled() { |
| 178 | return mEnabledLockFree; |
| 179 | } |
| 180 | |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 181 | int onShellCommand(ShellCommand shell) { |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 182 | PrintWriter pw = shell.getOutPrintWriter(); |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 183 | String cmd = shell.getNextArgRequired(); |
| 184 | switch (cmd) { |
| 185 | case "start": |
| 186 | startTrace(pw); |
| 187 | return 0; |
| 188 | case "stop": |
| 189 | stopTrace(pw); |
| 190 | return 0; |
| 191 | case "status": |
| 192 | logAndPrintln(pw, getStatus()); |
| 193 | return 0; |
| 194 | case "frame": |
| 195 | setLogFrequency(true /* onFrame */, pw); |
| 196 | mBuffer.resetBuffer(); |
| 197 | return 0; |
| 198 | case "transaction": |
| 199 | setLogFrequency(false /* onFrame */, pw); |
| 200 | mBuffer.resetBuffer(); |
| 201 | return 0; |
| 202 | case "level": |
| 203 | String logLevelStr = shell.getNextArgRequired().toLowerCase(); |
| 204 | switch (logLevelStr) { |
| 205 | case "all": { |
| 206 | setLogLevel(WindowTraceLogLevel.ALL, pw); |
| 207 | break; |
| 208 | } |
| 209 | case "trim": { |
| 210 | setLogLevel(WindowTraceLogLevel.TRIM, pw); |
| 211 | break; |
| 212 | } |
| 213 | case "critical": { |
| 214 | setLogLevel(WindowTraceLogLevel.CRITICAL, pw); |
| 215 | break; |
| 216 | } |
| 217 | default: { |
| 218 | setLogLevel(WindowTraceLogLevel.TRIM, pw); |
| 219 | break; |
| 220 | } |
| 221 | } |
| 222 | mBuffer.resetBuffer(); |
| 223 | return 0; |
| 224 | case "size": |
| 225 | setBufferCapacity(Integer.parseInt(shell.getNextArgRequired()) * 1024, pw); |
| 226 | mBuffer.resetBuffer(); |
| 227 | return 0; |
| 228 | default: |
| 229 | pw.println("Unknown command: " + cmd); |
| 230 | pw.println("Window manager trace options:"); |
| 231 | pw.println(" start: Start logging"); |
| 232 | pw.println(" stop: Stop logging"); |
| 233 | pw.println(" frame: Log trace once per frame"); |
| 234 | pw.println(" transaction: Log each transaction"); |
| 235 | pw.println(" size: Set the maximum log size (in KB)"); |
Nataniel Borges | c0e18bf | 2019-02-25 10:45:27 -0800 | [diff] [blame] | 236 | pw.println(" status: Print trace status"); |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 237 | pw.println(" level [lvl]: Set the log level between"); |
| 238 | pw.println(" lvl may be one of:"); |
| 239 | pw.println(" critical: Only visible windows with reduced information"); |
| 240 | pw.println(" trim: All windows with reduced"); |
| 241 | pw.println(" all: All window and information"); |
| 242 | return -1; |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 243 | } |
| 244 | } |
| 245 | |
Nataniel Borges | 24325ce | 2019-02-05 15:43:29 -0800 | [diff] [blame] | 246 | String getStatus() { |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 247 | return "Status: " |
| 248 | + ((isEnabled()) ? "Enabled" : "Disabled") |
| 249 | + "\n" |
| 250 | + "Log level: " |
| 251 | + mLogLevel |
| 252 | + "\n" |
| 253 | + mBuffer.getStatus(); |
| 254 | } |
| 255 | |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 256 | /** |
| 257 | * If tracing is enabled, log the current state or schedule the next frame to be logged, |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 258 | * according to {@link #mLogOnFrame}. |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 259 | * |
| 260 | * @param where Logging point descriptor |
| 261 | */ |
| 262 | void logState(String where) { |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 263 | if (!isEnabled()) { |
| 264 | return; |
| 265 | } |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 266 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 267 | if (mLogOnFrame) { |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 268 | schedule(); |
| 269 | } else { |
| 270 | log(where); |
| 271 | } |
| 272 | } |
Nataniel Borges | 023ecb5 | 2019-01-16 14:15:43 -0800 | [diff] [blame] | 273 | |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 274 | /** |
| 275 | * Schedule the log to trace the next frame |
| 276 | */ |
| 277 | private void schedule() { |
| 278 | if (mScheduled) { |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | mScheduled = true; |
| 283 | mChoreographer.postFrameCallback(mFrameCallback); |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Write the current frame to the buffer |
| 288 | * |
| 289 | * @param where Logging point descriptor |
| 290 | */ |
| 291 | private void log(String where) { |
| 292 | Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "traceStateLocked"); |
| 293 | try { |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 294 | ProtoOutputStream os = new ProtoOutputStream(); |
| 295 | long tokenOuter = os.start(ENTRY); |
| 296 | os.write(ELAPSED_REALTIME_NANOS, SystemClock.elapsedRealtimeNanos()); |
| 297 | os.write(WHERE, where); |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 298 | |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 299 | long tokenInner = os.start(WINDOW_MANAGER_SERVICE); |
| 300 | synchronized (mGlobalLock) { |
Jeffrey Huang | cb78285 | 2019-12-05 11:28:11 -0800 | [diff] [blame] | 301 | Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "dumpDebugLocked"); |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 302 | try { |
Jeffrey Huang | cb78285 | 2019-12-05 11:28:11 -0800 | [diff] [blame] | 303 | mService.dumpDebugLocked(os, mLogLevel); |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 304 | } finally { |
| 305 | Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER); |
| 306 | } |
Nataniel Borges | 023ecb5 | 2019-01-16 14:15:43 -0800 | [diff] [blame] | 307 | } |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 308 | os.end(tokenInner); |
| 309 | os.end(tokenOuter); |
| 310 | mBuffer.add(os); |
| 311 | mScheduled = false; |
Nataniel Borges | 48d9aa9 | 2019-02-01 14:45:55 -0800 | [diff] [blame] | 312 | } catch (Exception e) { |
| 313 | Log.wtf(TAG, "Exception while tracing state", e); |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 314 | } finally { |
| 315 | Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER); |
| 316 | } |
Adrian Roos | 111aff9 | 2017-09-27 18:11:46 +0200 | [diff] [blame] | 317 | } |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 318 | |
| 319 | /** |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 320 | * Writes the trace buffer to new file for the bugreport. |
| 321 | * |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 322 | * This method is synchronized with {@code #startTrace(PrintWriter)} and |
| 323 | * {@link #stopTrace(PrintWriter)}. |
| 324 | */ |
| 325 | void writeTraceToFile() { |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 326 | synchronized (mEnabledLock) { |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 327 | writeTraceToFileLocked(); |
| 328 | } |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 329 | ProtoLogImpl.getSingleInstance().writeProtoLogToFile(); |
Nataniel Borges | 98d92aa | 2019-01-03 14:22:44 -0800 | [diff] [blame] | 330 | } |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 331 | |
| 332 | private void logAndPrintln(@Nullable PrintWriter pw, String msg) { |
| 333 | Log.i(TAG, msg); |
| 334 | if (pw != null) { |
| 335 | pw.println(msg); |
| 336 | pw.flush(); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Writes the trace buffer to disk. This method has no internal synchronization and should be |
| 342 | * externally synchronized |
| 343 | */ |
| 344 | private void writeTraceToFileLocked() { |
| 345 | try { |
| 346 | Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "writeTraceToFileLocked"); |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 347 | ProtoOutputStream proto = new ProtoOutputStream(); |
| 348 | proto.write(MAGIC_NUMBER, MAGIC_NUMBER_VALUE); |
| 349 | mBuffer.writeTraceToFile(mTraceFile, proto); |
Nataniel Borges | 7d37ce2 | 2019-02-05 10:07:02 -0800 | [diff] [blame] | 350 | } catch (IOException e) { |
| 351 | Log.e(TAG, "Unable to write buffer to file", e); |
| 352 | } finally { |
| 353 | Trace.traceEnd(Trace.TRACE_TAG_WINDOW_MANAGER); |
| 354 | } |
| 355 | } |
Adam Pardyl | 0f1b3d4 | 2019-08-19 15:24:11 +0200 | [diff] [blame] | 356 | } |