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Merge "Fixing race condition between deleting display and updating votes" into udc-dev am: 84471c9738

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21853339

Change-Id: I66d1f7d8e55ea6089085ba007c211b63a678f5ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Oleg Petšjonkin
2023-03-09 08:21:32 +00:00
committed by Automerger Merge Worker
parent c30f96f792 84471c9738
commit 94c90299df
2 changed files with 46 additions and 0 deletions
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8
services/core/java/com/android/server/display/mode/SkinThermalStatusObserver.java
View File

@@ -84,7 +84,11 @@ final class SkinThermalStatusObserver extends IThermalEventListener.Stub impleme
@Override
public void notifyThrottling(Temperature temp) {
@Temperature.ThrottlingStatus int currentStatus = temp.getStatus();
synchronized (mThermalObserverLock) {
if (mStatus == currentStatus) {
return; // status not changed, skip update
}
mStatus = currentStatus;
mHandler.post(this::updateVotes);
}
@@ -188,6 +192,10 @@ final class SkinThermalStatusObserver extends IThermalEventListener.Stub impleme
localStatus = mStatus;
localMap = mThermalThrottlingByDisplay.get(displayId);
}
if (localMap == null) {
Slog.d(TAG, "Updating votes, display already removed, display=" + displayId);
return;
}
if (mLoggingEnabled) {
Slog.d(TAG, "Updating votes for status=" + localStatus + ", display =" + displayId
+ ", map=" + localMap);

38
services/tests/servicestests/src/com/android/server/display/mode/SkinThermalStatusObserverTest.java
View File

@@ -18,6 +18,7 @@ package com.android.server.display.mode;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import android.hardware.display.DisplayManager;
@@ -49,6 +50,7 @@ public class SkinThermalStatusObserverTest {
private static final float FLOAT_TOLERANCE = 0.01f;
private static final int DISPLAY_ID = 1;
private static final int DISPLAY_ID_OTHER = 2;
private static final int DISPLAY_ID_ADDED = 3;
SkinThermalStatusObserver mObserver;
@@ -167,6 +169,42 @@ public class SkinThermalStatusObserverTest {
assertEquals(120, vote.refreshRateRanges.render.max, FLOAT_TOLERANCE);
}
@Test
public void testDisplayAdded() {
// GIVEN 2 displays with no thermalThrottling config AND temperature level CRITICAL
mObserver.observe();
mObserver.notifyThrottling(createTemperature(Temperature.THROTTLING_CRITICAL));
// WHEN new display is added
mObserver.onDisplayAdded(DISPLAY_ID_ADDED);
mHandler.flush();
// THEN 3rd vote is added to storage with (0,60) render refresh rate(default behaviour)
assertEquals(3, mStorage.mVoteRegistry.size());
SparseArray<DisplayModeDirector.Vote> displayVotes = mStorage.mVoteRegistry.get(
DISPLAY_ID_ADDED);
assertEquals(1, displayVotes.size());
DisplayModeDirector.Vote vote = displayVotes.get(
DisplayModeDirector.Vote.PRIORITY_SKIN_TEMPERATURE);
assertEquals(0, vote.refreshRateRanges.render.min, FLOAT_TOLERANCE);
assertEquals(60, vote.refreshRateRanges.render.max, FLOAT_TOLERANCE);
}
@Test
public void testDisplayAddedAndThenImmediatelyRemoved() {
// GIVEN 2 displays with no thermalThrottling config AND temperature level CRITICAL
mObserver.observe();
mObserver.notifyThrottling(createTemperature(Temperature.THROTTLING_CRITICAL));
// WHEN new display is added and immediately removed
mObserver.onDisplayAdded(DISPLAY_ID_ADDED);
mObserver.onDisplayRemoved(DISPLAY_ID_ADDED);
mHandler.flush();
// THEN there are 2 votes in registry
assertEquals(2, mStorage.mVoteRegistry.size());
assertNotNull(mStorage.mVoteRegistry.get(DISPLAY_ID));
assertNotNull(mStorage.mVoteRegistry.get(DISPLAY_ID_OTHER));
}
private static Temperature createTemperature(@Temperature.ThrottlingStatus int status) {
return new Temperature(40.0f, Temperature.TYPE_SKIN, "test_temp", status);
}