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![Tad](/assets/img/avatar_default.png)
- 18.1: Fix exempted background tasks when dozing (GrapheneOS) - 20.0: pick a fix for some colors after qpr2 - 20.0: fix the missing notification backdrop Signed-off-by: Tad <tad@spotco.us>
130 lines
7.1 KiB
Diff
130 lines
7.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Dmitry Muhomor <muhomor.dmitry@gmail.com>
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Date: Thu, 7 Jul 2022 09:28:40 +0300
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Subject: [PATCH] DeviceIdleJobsController: don't ignore whitelisted system
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apps
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Only user app IDs were written to `mDeviceIdleWhitelistAppIds`, both initially and when
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`PowerManager.ACTION_POWER_SAVE_WHITELIST_CHANGED` broadcast was received. All other places that
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listen to that broadcast retrieve both user and system app IDs.
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The only place where `mDeviceIdleWhitelistAppIds` array is checked is in `isWhitelistedLocked()`,
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which is called only by `updateTaskStateLocked()` to check whether the app is on the device idle whitelist.
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It's not clear why DeviceIdleJobsController ignores system apps.
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File level comment doesn't mention the distinction between system and user apps:
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"When device is dozing, set constraint for all jobs, except whitelisted apps, as not satisfied."
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Comment for isWhitelistedLocked() does, however:
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"Checks if the given job's scheduling app id exists in the device idle user whitelist."
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However, that method is called for both system and user apps, and returns false for system apps
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because only whitelist of user apps is checked. This leads to long delays for jobs that were
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submitted by whitelisted system apps when device is in the Doze mode. No such delays happen with
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whitelisted user apps.
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Other places use a different naming for array of app IDs that includes only user apps,
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eg `mDeviceIdleWhitelistUserAppIds`, not `mDeviceIdleWhitelistAppIds`.
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I've looked through the Git history of DeviceIdleJobsController and JobSchedulerService, but didn't
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find a reason for this behavior. Perhaps, system apps were exempted from device idle JobScheduler
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restricitions in some other place previously, or this was a bug from the start.
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Tested on an emulator with the Messaging app, which uses JobScheduler
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during processing of incoming SMS:
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1. Check that Messaging app is on system deviceidle whitelist:
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```
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$ dumpsys deviceidle whitelist | grep com.android.messaging
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system-excidle,com.android.messaging,10090
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system,com.android.messaging,10090
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```
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2. Simulate sending an SMS: it appears immediately
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3. Simulate Doze mode: `$ dumpsys deviceidle force-idle`
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4. Simulate sending an SMS again. Message doesn't appear, even if the Messaging app is open
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5. Exit Doze mode: `$ dumpsys deviceidle unforce`. All pending messages appear immediately
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6. Add Messaging app to the user whitelist:
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```
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$ dumpsys deviceidle whitelist +com.android.messaging
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$ dumpsys deviceidle whitelist | grep com.android.messaging
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system-excidle,com.android.messaging,10090
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system,com.android.messaging,10090
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user,com.android.messaging,10090
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```
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7. Simulate Doze mode again: `$ dumpsys deviceidle force-idle`
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8. Simulate sending an SMS, note that it appears immediately this time
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Also made a test system app to make sure that this issue isn't caused by low targetSdk of the
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Messaging app (it targets SDK 24). Same issue with targetSdk 32 app.
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In both cases, applying this patch fixes the issue.
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---
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.../java/com/android/server/DeviceIdleInternal.java | 2 +-
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.../java/com/android/server/DeviceIdleController.java | 6 +++---
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.../server/job/controllers/DeviceIdleJobsController.java | 6 +++---
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3 files changed, 7 insertions(+), 7 deletions(-)
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diff --git a/apex/jobscheduler/framework/java/com/android/server/DeviceIdleInternal.java b/apex/jobscheduler/framework/java/com/android/server/DeviceIdleInternal.java
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index 6475f5706a6d..b3e2629af684 100644
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--- a/apex/jobscheduler/framework/java/com/android/server/DeviceIdleInternal.java
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+++ b/apex/jobscheduler/framework/java/com/android/server/DeviceIdleInternal.java
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@@ -46,7 +46,7 @@ public interface DeviceIdleInternal {
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boolean isAppOnWhitelist(int appid);
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- int[] getPowerSaveWhitelistUserAppIds();
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+ int[] getPowerSaveWhitelistAppIds();
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int[] getPowerSaveTempWhitelistAppIds();
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diff --git a/apex/jobscheduler/service/java/com/android/server/DeviceIdleController.java b/apex/jobscheduler/service/java/com/android/server/DeviceIdleController.java
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index ac58f3d6a94d..ad656425af00 100644
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--- a/apex/jobscheduler/service/java/com/android/server/DeviceIdleController.java
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+++ b/apex/jobscheduler/service/java/com/android/server/DeviceIdleController.java
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@@ -1812,14 +1812,14 @@ public class DeviceIdleController extends SystemService
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}
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/**
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- * Returns the array of app ids whitelisted by user. Take care not to
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+ * Returns the array of whitelisted app ids. Take care not to
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* modify this, as it is a reference to the original copy. But the reference
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* can change when the list changes, so it needs to be re-acquired when
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* {@link PowerManager#ACTION_POWER_SAVE_WHITELIST_CHANGED} is sent.
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*/
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@Override
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- public int[] getPowerSaveWhitelistUserAppIds() {
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- return DeviceIdleController.this.getPowerSaveWhitelistUserAppIds();
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+ public int[] getPowerSaveWhitelistAppIds() {
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+ return DeviceIdleController.this.getAppIdWhitelistInternal();
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}
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@Override
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diff --git a/apex/jobscheduler/service/java/com/android/server/job/controllers/DeviceIdleJobsController.java b/apex/jobscheduler/service/java/com/android/server/job/controllers/DeviceIdleJobsController.java
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index 01f5fa62f889..4b1a830b319f 100644
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--- a/apex/jobscheduler/service/java/com/android/server/job/controllers/DeviceIdleJobsController.java
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+++ b/apex/jobscheduler/service/java/com/android/server/job/controllers/DeviceIdleJobsController.java
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@@ -88,7 +88,7 @@ public final class DeviceIdleJobsController extends StateController {
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case PowerManager.ACTION_POWER_SAVE_WHITELIST_CHANGED:
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synchronized (mLock) {
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mDeviceIdleWhitelistAppIds =
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- mLocalDeviceIdleController.getPowerSaveWhitelistUserAppIds();
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+ mLocalDeviceIdleController.getPowerSaveWhitelistAppIds();
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if (DEBUG) {
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Slog.d(TAG, "Got whitelist "
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+ Arrays.toString(mDeviceIdleWhitelistAppIds));
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@@ -124,7 +124,7 @@ public final class DeviceIdleJobsController extends StateController {
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mPowerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
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mLocalDeviceIdleController =
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LocalServices.getService(DeviceIdleInternal.class);
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- mDeviceIdleWhitelistAppIds = mLocalDeviceIdleController.getPowerSaveWhitelistUserAppIds();
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+ mDeviceIdleWhitelistAppIds = mLocalDeviceIdleController.getPowerSaveWhitelistAppIds();
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mPowerSaveTempWhitelistAppIds =
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mLocalDeviceIdleController.getPowerSaveTempWhitelistAppIds();
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mDeviceIdleUpdateFunctor = new DeviceIdleUpdateFunctor();
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@@ -188,7 +188,7 @@ public final class DeviceIdleJobsController extends StateController {
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}
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/**
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- * Checks if the given job's scheduling app id exists in the device idle user whitelist.
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+ * Checks if the given job's scheduling app id exists in the device idle whitelist.
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*/
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boolean isWhitelistedLocked(JobStatus job) {
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return Arrays.binarySearch(mDeviceIdleWhitelistAppIds,
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