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Commit 1ea4289b authored by Tej Singh's avatar Tej Singh
Browse files

Atom: Shutdown sequence event 

Records start and duration of shutdown, along with reason and if it was
a reboot.

Test: manually verified statsd received atom. CTS test for this will be
difficult, and I will investigate further later.

Change-Id: I0f6b595e0e251fd0a8b38127182d055885460a55
parent af2397da

cmds/statsd/src/atoms.proto

+22 −0
Original line number Diff line number Diff line
@@ -93,6 +93,7 @@ message Atom { 
        WifiMulticastLockStateChanged wifi_multicast_lock_state_changed = 53;

        LmkStateChanged lmk_state_changed = 54;

        AppStartMemoryStateCaptured app_start_memory_state_captured = 55;

        ShutdownSequenceReported shutdown_sequence_reported = 56;

        // TODO: Reorder the numbering so that the most frequent occur events occur in the first 15.

    }
@@ -668,6 +669,27 @@ message WifiMulticastLockStateChanged { 
    optional State state = 2;

}



/**

 * Logs shutdown reason and duration on next boot.

 *

 * Logged from:

 *   frameworks/base/core/java/com/android/server/BootReceiver.java

 */

message ShutdownSequenceReported {

    // True if shutdown is for a reboot. Default: false if we do not know.

    optional bool reboot = 1;



    // Reason for shutdown. Eg: userrequested. Default: "<EMPTY>".

    optional string reason = 2;



    // Beginning of shutdown time in ms using wall clock time since unix epoch.

    // Default: 0 if no start time received.

    optional int64 start_time_ms = 3;



    // Duration of shutdown in ms. Default: 0 if no duration received.

    optional int64 duration_ms = 4;

}



/**

 * Logs phone signal strength changes.

 *

core/java/com/android/server/BootReceiver.java

+64 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ import android.text.TextUtils; 
import android.util.AtomicFile;

import android.util.EventLog;

import android.util.Slog;

import android.util.StatsLog;

import android.util.Xml;



import com.android.internal.annotations.VisibleForTesting;
@@ -112,6 +113,8 @@ public class BootReceiver extends BroadcastReceiver { 
    private static final String SHUTDOWN_METRICS_FILE = "/data/system/shutdown-metrics.txt";



    private static final String SHUTDOWN_TRON_METRICS_PREFIX = "shutdown_";

    private static final String METRIC_SYSTEM_SERVER = "shutdown_system_server";

    private static final String METRIC_SHUTDOWN_TIME_START = "begin_shutdown";



    @Override

    public void onReceive(final Context context, Intent intent) {
@@ -401,6 +404,10 @@ public class BootReceiver extends BroadcastReceiver { 
            }

        }

        if (!TextUtils.isEmpty(metricsStr)) {

            String reboot = null;

            String reason = null;

            String start_time = null;

            String duration = null;

            String[] array = metricsStr.split(",");

            for (String keyValueStr : array) {

                String[] keyValue = keyValueStr.split(":");
@@ -411,8 +418,19 @@ public class BootReceiver extends BroadcastReceiver { 
                // Ignore keys that are not indended for tron

                if (keyValue[0].startsWith(SHUTDOWN_TRON_METRICS_PREFIX)) {

                    logTronShutdownMetric(keyValue[0], keyValue[1]);

                    if (keyValue[0].equals(METRIC_SYSTEM_SERVER)) {

                        duration = keyValue[1];

                    }

                }

                if (keyValue[0].equals("reboot")) {

                    reboot = keyValue[1];

                } else if (keyValue[0].equals("reason")) {

                    reason = keyValue[1];

                } else if (keyValue[0].equals(METRIC_SHUTDOWN_TIME_START)) {

                    start_time = keyValue[1];

                }

            }

            logStatsdShutdownAtom(reboot, reason, start_time, duration);

        }

        metricsFile.delete();

    }
@@ -430,6 +448,52 @@ public class BootReceiver extends BroadcastReceiver { 
        }

    }



    private static void logStatsdShutdownAtom(

            String rebootStr, String reasonStr, String startStr, String durationStr) {

        boolean reboot = false;

        String reason = "<EMPTY>";

        long start = 0;

        long duration = 0;



        if (rebootStr != null) {

            if (rebootStr.equals("y")) {

                reboot = true;

            } else if (!rebootStr.equals("n")) {

                Slog.e(TAG, "Unexpected value for reboot : " + rebootStr);

            }

        } else {

            Slog.e(TAG, "No value received for reboot");

        }



        if (reasonStr != null) {

            reason = reasonStr;

        } else {

            Slog.e(TAG, "No value received for shutdown reason");

        }



        if (startStr != null) {

            try {

                start = Long.parseLong(startStr);

            } catch (NumberFormatException e) {

                Slog.e(TAG, "Cannot parse shutdown start time: " + startStr);

            }

        } else {

            Slog.e(TAG, "No value received for shutdown start time");

        }



        if (durationStr != null) {

            try {

                duration = Long.parseLong(durationStr);

            } catch (NumberFormatException e) {

                Slog.e(TAG, "Cannot parse shutdown duration: " + startStr);

            }

        } else {

            Slog.e(TAG, "No value received for shutdown duration");

        }



        StatsLog.write(StatsLog.SHUTDOWN_SEQUENCE_REPORTED, reboot, reason, start, duration);

    }



    private static void logFsShutdownTime() {

        File f = null;

        for (String fileName : LAST_KMSG_FILES) {

services/core/java/com/android/server/power/ShutdownThread.java

+11 −2
Original line number Diff line number Diff line
@@ -113,6 +113,7 @@ public final class ShutdownThread extends Thread { 
    private static String METRIC_PM = "shutdown_package_manager";

    private static String METRIC_RADIOS = "shutdown_radios";

    private static String METRIC_RADIO = "shutdown_radio";

    private static String METRIC_SHUTDOWN_TIME_START = "begin_shutdown";



    private final Object mActionDoneSync = new Object();

    private boolean mActionDone;
@@ -410,6 +411,7 @@ public final class ShutdownThread extends Thread { 
    public void run() {

        TimingsTraceLog shutdownTimingLog = newTimingsLog();

        shutdownTimingLog.traceBegin("SystemServerShutdown");

        metricShutdownStart();

        metricStarted(METRIC_SYSTEM_SERVER);



        BroadcastReceiver br = new BroadcastReceiver() {
@@ -525,7 +527,7 @@ public final class ShutdownThread extends Thread { 


        shutdownTimingLog.traceEnd(); // SystemServerShutdown

        metricEnded(METRIC_SYSTEM_SERVER);

        saveMetrics(mReboot);

        saveMetrics(mReboot, mReason);

        // Remaining work will be done by init, including vold shutdown

        rebootOrShutdown(mContext, mReboot, mReason);

    }
@@ -547,6 +549,12 @@ public final class ShutdownThread extends Thread { 
        }

    }



    private static void metricShutdownStart() {

        synchronized (TRON_METRICS) {

            TRON_METRICS.put(METRIC_SHUTDOWN_TIME_START, System.currentTimeMillis());

        }

    }



    private void setRebootProgress(final int progress, final CharSequence message) {

        mHandler.post(new Runnable() {

            @Override
@@ -668,10 +676,11 @@ public final class ShutdownThread extends Thread { 
        PowerManagerService.lowLevelShutdown(reason);

    }



    private static void saveMetrics(boolean reboot) {

    private static void saveMetrics(boolean reboot, String reason) {

        StringBuilder metricValue = new StringBuilder();

        metricValue.append("reboot:");

        metricValue.append(reboot ? "y" : "n");

        metricValue.append(",").append("reason:").append(reason);

        final int metricsSize = TRON_METRICS.size();

        for (int i = 0; i < metricsSize; i++) {

            final String name = TRON_METRICS.keyAt(i);