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Merge "Introduce new lock to avoid lock-ordering issues." into sc-dev

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This commit is contained in:
TreeHugger Robot
2021-08-06 22:23:02 +00:00
committed by Android (Google) Code Review
parent b72bf2927e 06aff34a8f
commit 0298091d08
1 changed files with 19 additions and 14 deletions
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33
services/core/java/com/android/server/display/DisplayModeDirector.java
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@@ -52,6 +52,7 @@ import android.view.Display;
import android.view.DisplayInfo;
import com.android.internal.R;
import com.android.internal.annotations.GuardedBy;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.os.BackgroundThread;
import com.android.server.LocalServices;
@@ -2127,7 +2128,7 @@ public class DisplayModeDirector {
}
}
private final class SensorObserver implements ProximityActiveListener,
private static final class SensorObserver implements ProximityActiveListener,
DisplayManager.DisplayListener {
private final String mProximitySensorName = null;
private final String mProximitySensorType = Sensor.STRING_TYPE_PROXIMITY;
@@ -2135,22 +2136,24 @@ public class DisplayModeDirector {
private final BallotBox mBallotBox;
private final Context mContext;
private final Injector mInjector;
@GuardedBy("mSensorObserverLock")
private final SparseBooleanArray mDozeStateByDisplay = new SparseBooleanArray();
private final Object mSensorObserverLock = new Object();
private DisplayManager mDisplayManager;
private DisplayManagerInternal mDisplayManagerInternal;
@GuardedBy("mSensorObserverLock")
private boolean mIsProxActive = false;
private final SparseBooleanArray mDozeStateByDisplay;
SensorObserver(Context context, BallotBox ballotBox, Injector injector) {
mContext = context;
mBallotBox = ballotBox;
mInjector = injector;
mDozeStateByDisplay = new SparseBooleanArray();
}
@Override
public void onProximityActive(boolean isActive) {
synchronized (mLock) {
synchronized (mSensorObserverLock) {
if (mIsProxActive != isActive) {
mIsProxActive = isActive;
recalculateVotesLocked();
@@ -2166,7 +2169,7 @@ public class DisplayModeDirector {
LocalServices.getService(SensorManagerInternal.class);
sensorManager.addProximityActiveListener(BackgroundThread.getExecutor(), this);
synchronized (mLock) {
synchronized (mSensorObserverLock) {
for (Display d : mDisplayManager.getDisplays()) {
mDozeStateByDisplay.put(d.getDisplayId(), mInjector.isDozeState(d));
}
@@ -2196,19 +2199,21 @@ public class DisplayModeDirector {
void dumpLocked(PrintWriter pw) {
pw.println(" SensorObserver");
pw.println(" mIsProxActive=" + mIsProxActive);
pw.println(" mDozeStateByDisplay:");
for (int i = 0; i < mDozeStateByDisplay.size(); i++) {
final int id = mDozeStateByDisplay.keyAt(i);
final boolean dozed = mDozeStateByDisplay.valueAt(i);
pw.println(" " + id + " -> " + dozed);
synchronized (mSensorObserverLock) {
pw.println(" mIsProxActive=" + mIsProxActive);
pw.println(" mDozeStateByDisplay:");
for (int i = 0; i < mDozeStateByDisplay.size(); i++) {
final int id = mDozeStateByDisplay.keyAt(i);
final boolean dozed = mDozeStateByDisplay.valueAt(i);
pw.println(" " + id + " -> " + dozed);
}
}
}
@Override
public void onDisplayAdded(int displayId) {
boolean isDozeState = mInjector.isDozeState(mDisplayManager.getDisplay(displayId));
synchronized (mLock) {
synchronized (mSensorObserverLock) {
mDozeStateByDisplay.put(displayId, isDozeState);
recalculateVotesLocked();
}
@@ -2217,7 +2222,7 @@ public class DisplayModeDirector {
@Override
public void onDisplayChanged(int displayId) {
boolean wasDozeState = mDozeStateByDisplay.get(displayId);
synchronized (mLock) {
synchronized (mSensorObserverLock) {
mDozeStateByDisplay.put(displayId,
mInjector.isDozeState(mDisplayManager.getDisplay(displayId)));
if (wasDozeState != mDozeStateByDisplay.get(displayId)) {
@@ -2228,7 +2233,7 @@ public class DisplayModeDirector {
@Override
public void onDisplayRemoved(int displayId) {
synchronized (mLock) {
synchronized (mSensorObserverLock) {
mDozeStateByDisplay.delete(displayId);
recalculateVotesLocked();
}