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Commit 2a968edf authored by Yipeng Cao's avatar Yipeng Cao
Browse files

Change currentTimeMillis to elapsedRealtime 

System.currentTimeMillis does not gauntness to be monotonically
increasing, changed to SystemClock.elapsedRealtime

Bug: 38317243
Fixes: 38317243
Test: make -j 32; flash the angler device using local build

Change-Id: I3fd8f8b03655183d257d69412bc1c17cc38ccead
Merged-In: I75a70d43028e901d9f3459d6b525cac58e8e64af
parent 8d878426

services/core/java/com/android/server/location/GnssLocationProvider.java

+5 −4
Original line number Diff line number Diff line
@@ -937,7 +937,7 @@ public class GnssLocationProvider implements LocationProviderInterface { 
                    long time = mNtpTime.getCachedNtpTime();

                    long timeReference = mNtpTime.getCachedNtpTimeReference();

                    long certainty = mNtpTime.getCacheCertainty();

                    long now = System.currentTimeMillis();

                    long now = SystemClock.elapsedRealtime();



                    if (DEBUG) {

                        Log.d(TAG, "NTP server returned: "
@@ -1444,7 +1444,8 @@ public class GnssLocationProvider implements LocationProviderInterface { 


            // reset SV count to zero

            updateStatus(LocationProvider.TEMPORARILY_UNAVAILABLE, 0);

            mFixRequestTime = System.currentTimeMillis();

            mFixRequestTime = SystemClock.elapsedRealtime();



            if (!hasCapability(GPS_CAPABILITY_SCHEDULING)) {

                // set timer to give up if we do not receive a fix within NO_FIX_TIMEOUT

                // and our fix interval is not short
@@ -1514,7 +1515,7 @@ public class GnssLocationProvider implements LocationProviderInterface { 
            }

        }



        mLastFixTime = System.currentTimeMillis();

        mLastFixTime = SystemClock.elapsedRealtime();

        // report time to first fix

        if (mTimeToFirstFix == 0 && hasLatLong) {

            mTimeToFirstFix = (int)(mLastFixTime - mFixRequestTime);
@@ -1629,7 +1630,7 @@ public class GnssLocationProvider implements LocationProviderInterface { 
        updateStatus(mStatus, usedInFixCount);



        if (mNavigating && mStatus == LocationProvider.AVAILABLE && mLastFixTime > 0 &&

            System.currentTimeMillis() - mLastFixTime > RECENT_FIX_TIMEOUT) {

            SystemClock.elapsedRealtime() - mLastFixTime > RECENT_FIX_TIMEOUT) {

            // send an intent to notify that the GPS is no longer receiving fixes.

            Intent intent = new Intent(LocationManager.GPS_FIX_CHANGE_ACTION);

            intent.putExtra(LocationManager.EXTRA_GPS_ENABLED, false);