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Fix race condition between lockNow() and updateLockscreenTimeout

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If updateLockscreenTimeout gets called before the Runnable queued
from lockNow gets executed, lockNow request will be ignored. Fix
this by not clearing out the runnable if it's pending lock request.

Test: Switch user, ensure lockscreen comes up
Bug: 161149543
Change-Id: Ie486396fd7328edf8ca0912df92524bb82a1fb7f
This commit is contained in:
Jorim Jaggi
2021-05-20 18:35:30 +02:00
parent 65782cf2c1
commit 875fa991aa
1 changed files with 11 additions and 1 deletions
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12
services/core/java/com/android/server/policy/PhoneWindowManager.java
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@@ -595,6 +595,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
private KeyCombinationManager mKeyCombinationManager;
private SingleKeyGestureDetector mSingleKeyGestureDetector;
private boolean mLockNowPending = false;
private static final int MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK = 3;
private static final int MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK = 4;
private static final int MSG_KEYGUARD_DRAWN_COMPLETE = 5;
@@ -4817,6 +4819,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
mKeyguardDelegate.doKeyguardTimeout(options);
}
mLockScreenTimerActive = false;
mLockNowPending = false;
options = null;
}
}
@@ -4826,7 +4829,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
}
}
ScreenLockTimeout mScreenLockTimeout = new ScreenLockTimeout();
final ScreenLockTimeout mScreenLockTimeout = new ScreenLockTimeout();
@Override
public void lockNow(Bundle options) {
@@ -4838,6 +4841,9 @@ public class PhoneWindowManager implements WindowManagerPolicy {
mScreenLockTimeout.setLockOptions(options);
}
mHandler.post(mScreenLockTimeout);
synchronized (mScreenLockTimeout) {
mLockNowPending = true;
}
}
// TODO (b/113840485): Move this logic to DisplayPolicy when lockscreen supports multi-display.
@@ -4853,6 +4859,10 @@ public class PhoneWindowManager implements WindowManagerPolicy {
private void updateLockScreenTimeout() {
synchronized (mScreenLockTimeout) {
if (mLockNowPending) {
Log.w(TAG, "lockNow pending, ignore updating lockscreen timeout");
return;
}
final boolean enable = !mAllowLockscreenWhenOnDisplays.isEmpty()
&& mDefaultDisplayPolicy.isAwake()
&& mKeyguardDelegate != null && mKeyguardDelegate.isSecure(mCurrentUserId);