Ensure AlarmManager is brought out of device idle.
In certain cases, DeviceIdleController would come out of STATE_IDLE but
not properly tell AlarmManager (by removing the IDLE_UNTIL alarm). This
meant that alarms wouldn't go off even though the user may be using the
device.
Manual testing steps:
1. Turn on WAIT_FOR_UNLOCK ('adb shell settings put global device_idle_constants "wait_for_unlock=true"')
2. Enable screen lock
3. Unplug device ('adb shell dumpsys battery unplug')
3. Turn screen off
4. Enter IDLE state (repeat 'adb shell dumpsys deviceidle step' until IDLE)
5. Turn screen on
6. Shake device (or run 'adb shell dumpsys deviceidle motion')
7. Check dumpsys output:
- 'adb shell dumpsys deviceidle get deep' should say "INACTIVE"
- 'adb shell dumpsys alarm' should not have "Idle state mode" in the output
Bug: 118321869
Test: atest com.android.server.DeviceIdleControllerTest
Change-Id: Ie41b5a4bd9f2b386fe709108c39a443bd40fd573
diff --git a/services/core/java/com/android/server/DeviceIdleController.java b/services/core/java/com/android/server/DeviceIdleController.java
index 39030aa..6b66394 100644
--- a/services/core/java/com/android/server/DeviceIdleController.java
+++ b/services/core/java/com/android/server/DeviceIdleController.java
@@ -271,6 +271,7 @@
private static final int EVENT_BUFFER_SIZE = 100;
private AlarmManager mAlarmManager;
+ private AlarmManagerInternal mLocalAlarmManager;
private IBatteryStats mBatteryStats;
private ActivityManagerInternal mLocalActivityManager;
private ActivityTaskManagerInternal mLocalActivityTaskManager;
@@ -616,7 +617,8 @@
}
};
- private final AlarmManager.OnAlarmListener mDeepAlarmListener
+ @VisibleForTesting
+ final AlarmManager.OnAlarmListener mDeepAlarmListener
= new AlarmManager.OnAlarmListener() {
@Override
public void onAlarm() {
@@ -1874,6 +1876,7 @@
if (phase == PHASE_SYSTEM_SERVICES_READY) {
synchronized (this) {
mAlarmManager = mInjector.getAlarmManager();
+ mLocalAlarmManager = getLocalService(AlarmManagerInternal.class);
mBatteryStats = BatteryStatsService.getService();
mLocalActivityManager = getLocalService(ActivityManagerInternal.class);
mLocalActivityTaskManager = getLocalService(ActivityTaskManagerInternal.class);
@@ -2605,6 +2608,16 @@
// next natural time to come out of it.
}
+
+ /** Returns true if the screen is locked. */
+ @VisibleForTesting
+ boolean isKeyguardShowing() {
+ synchronized (this) {
+ return mScreenLocked;
+ }
+ }
+
+ @VisibleForTesting
void keyguardShowingLocked(boolean showing) {
if (DEBUG) Slog.i(TAG, "keyguardShowing=" + showing);
if (mScreenLocked != showing) {
@@ -2616,25 +2629,38 @@
}
}
+ @VisibleForTesting
void scheduleReportActiveLocked(String activeReason, int activeUid) {
Message msg = mHandler.obtainMessage(MSG_REPORT_ACTIVE, activeUid, 0, activeReason);
mHandler.sendMessage(msg);
}
void becomeActiveLocked(String activeReason, int activeUid) {
- if (DEBUG) Slog.i(TAG, "becomeActiveLocked, reason = " + activeReason);
+ becomeActiveLocked(activeReason, activeUid, mConstants.INACTIVE_TIMEOUT, true);
+ }
+
+ private void becomeActiveLocked(String activeReason, int activeUid,
+ long newInactiveTimeout, boolean changeLightIdle) {
+ if (DEBUG) {
+ Slog.i(TAG, "becomeActiveLocked, reason=" + activeReason
+ + ", changeLightIdle=" + changeLightIdle);
+ }
if (mState != STATE_ACTIVE || mLightState != STATE_ACTIVE) {
EventLogTags.writeDeviceIdle(STATE_ACTIVE, activeReason);
- EventLogTags.writeDeviceIdleLight(LIGHT_STATE_ACTIVE, activeReason);
- scheduleReportActiveLocked(activeReason, activeUid);
mState = STATE_ACTIVE;
- mLightState = LIGHT_STATE_ACTIVE;
- mInactiveTimeout = mConstants.INACTIVE_TIMEOUT;
+ mInactiveTimeout = newInactiveTimeout;
mCurIdleBudget = 0;
mMaintenanceStartTime = 0;
resetIdleManagementLocked();
- resetLightIdleManagementLocked();
- addEvent(EVENT_NORMAL, activeReason);
+
+ if (changeLightIdle) {
+ EventLogTags.writeDeviceIdleLight(LIGHT_STATE_ACTIVE, activeReason);
+ mLightState = LIGHT_STATE_ACTIVE;
+ resetLightIdleManagementLocked();
+ // Only report active if light is also ACTIVE.
+ scheduleReportActiveLocked(activeReason, activeUid);
+ addEvent(EVENT_NORMAL, activeReason);
+ }
}
}
@@ -2654,49 +2680,81 @@
}
}
+ /** Sanity check to make sure DeviceIdleController and AlarmManager are on the same page. */
+ private void verifyAlarmStateLocked() {
+ if (mState == STATE_ACTIVE && mNextAlarmTime != 0) {
+ Slog.wtf(TAG, "mState=ACTIVE but mNextAlarmTime=" + mNextAlarmTime);
+ }
+ if (mState != STATE_IDLE && mLocalAlarmManager.isIdling()) {
+ Slog.wtf(TAG, "mState=" + stateToString(mState) + " but AlarmManager is idling");
+ }
+ if (mState == STATE_IDLE && !mLocalAlarmManager.isIdling()) {
+ Slog.wtf(TAG, "mState=IDLE but AlarmManager is not idling");
+ }
+ if (mLightState == LIGHT_STATE_ACTIVE && mNextLightAlarmTime != 0) {
+ Slog.wtf(TAG, "mLightState=ACTIVE but mNextLightAlarmTime is "
+ + TimeUtils.formatDuration(mNextLightAlarmTime - SystemClock.elapsedRealtime())
+ + " from now");
+ }
+ }
+
void becomeInactiveIfAppropriateLocked() {
- if (DEBUG) Slog.d(TAG, "becomeInactiveIfAppropriateLocked()");
- if ((!mScreenOn && !mCharging) || mForceIdle) {
- // Become inactive and determine if we will ultimately go idle.
- if (mDeepEnabled) {
- if (mQuickDozeActivated) {
- if (mState == STATE_QUICK_DOZE_DELAY || mState == STATE_IDLE
- || mState == STATE_IDLE_MAINTENANCE) {
- // Already "idling". Don't want to restart the process.
- // mLightState can't be LIGHT_STATE_ACTIVE if mState is any of these 3
- // values, so returning here is safe.
- return;
- }
- if (DEBUG) {
- Slog.d(TAG, "Moved from "
- + stateToString(mState) + " to STATE_QUICK_DOZE_DELAY");
- }
- mState = STATE_QUICK_DOZE_DELAY;
- // Make sure any motion sensing or locating is stopped.
- resetIdleManagementLocked();
- // Wait a small amount of time in case something (eg: background service from
- // recently closed app) needs to finish running.
- scheduleAlarmLocked(mConstants.QUICK_DOZE_DELAY_TIMEOUT, false);
- EventLogTags.writeDeviceIdle(mState, "no activity");
- } else if (mState == STATE_ACTIVE) {
- mState = STATE_INACTIVE;
- if (DEBUG) Slog.d(TAG, "Moved from STATE_ACTIVE to STATE_INACTIVE");
- resetIdleManagementLocked();
- long delay = mInactiveTimeout;
- if (shouldUseIdleTimeoutFactorLocked()) {
- delay = (long) (mPreIdleFactor * delay);
- }
- scheduleAlarmLocked(delay, false);
- EventLogTags.writeDeviceIdle(mState, "no activity");
+ verifyAlarmStateLocked();
+
+ final boolean isScreenBlockingInactive =
+ mScreenOn && (!mConstants.WAIT_FOR_UNLOCK || !mScreenLocked);
+ if (DEBUG) {
+ Slog.d(TAG, "becomeInactiveIfAppropriateLocked():"
+ + " isScreenBlockingInactive=" + isScreenBlockingInactive
+ + " (mScreenOn=" + mScreenOn
+ + ", WAIT_FOR_UNLOCK=" + mConstants.WAIT_FOR_UNLOCK
+ + ", mScreenLocked=" + mScreenLocked + ")"
+ + " mCharging=" + mCharging
+ + " mForceIdle=" + mForceIdle
+ );
+ }
+ if (!mForceIdle && (mCharging || isScreenBlockingInactive)) {
+ return;
+ }
+ // Become inactive and determine if we will ultimately go idle.
+ if (mDeepEnabled) {
+ if (mQuickDozeActivated) {
+ if (mState == STATE_QUICK_DOZE_DELAY || mState == STATE_IDLE
+ || mState == STATE_IDLE_MAINTENANCE) {
+ // Already "idling". Don't want to restart the process.
+ // mLightState can't be LIGHT_STATE_ACTIVE if mState is any of these 3
+ // values, so returning here is safe.
+ return;
}
+ if (DEBUG) {
+ Slog.d(TAG, "Moved from "
+ + stateToString(mState) + " to STATE_QUICK_DOZE_DELAY");
+ }
+ mState = STATE_QUICK_DOZE_DELAY;
+ // Make sure any motion sensing or locating is stopped.
+ resetIdleManagementLocked();
+ // Wait a small amount of time in case something (eg: background service from
+ // recently closed app) needs to finish running.
+ scheduleAlarmLocked(mConstants.QUICK_DOZE_DELAY_TIMEOUT, false);
+ EventLogTags.writeDeviceIdle(mState, "no activity");
+ } else if (mState == STATE_ACTIVE) {
+ mState = STATE_INACTIVE;
+ if (DEBUG) Slog.d(TAG, "Moved from STATE_ACTIVE to STATE_INACTIVE");
+ resetIdleManagementLocked();
+ long delay = mInactiveTimeout;
+ if (shouldUseIdleTimeoutFactorLocked()) {
+ delay = (long) (mPreIdleFactor * delay);
+ }
+ scheduleAlarmLocked(delay, false);
+ EventLogTags.writeDeviceIdle(mState, "no activity");
}
- if (mLightState == LIGHT_STATE_ACTIVE && mLightEnabled) {
- mLightState = LIGHT_STATE_INACTIVE;
- if (DEBUG) Slog.d(TAG, "Moved from LIGHT_STATE_ACTIVE to LIGHT_STATE_INACTIVE");
- resetLightIdleManagementLocked();
- scheduleLightAlarmLocked(mConstants.LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT);
- EventLogTags.writeDeviceIdleLight(mLightState, "no activity");
- }
+ }
+ if (mLightState == LIGHT_STATE_ACTIVE && mLightEnabled) {
+ mLightState = LIGHT_STATE_INACTIVE;
+ if (DEBUG) Slog.d(TAG, "Moved from LIGHT_STATE_ACTIVE to LIGHT_STATE_INACTIVE");
+ resetLightIdleManagementLocked();
+ scheduleLightAlarmLocked(mConstants.LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT);
+ EventLogTags.writeDeviceIdleLight(mLightState, "no activity");
}
}
@@ -3216,33 +3274,10 @@
// The device is not yet active, so we want to go back to the pending idle
// state to wait again for no motion. Note that we only monitor for motion
// after moving out of the inactive state, so no need to worry about that.
- boolean becomeInactive = false;
- if (mState != STATE_ACTIVE) {
- // Motion shouldn't affect light state, if it's already in doze-light or maintenance
- boolean lightIdle = mLightState == LIGHT_STATE_IDLE
- || mLightState == LIGHT_STATE_WAITING_FOR_NETWORK
- || mLightState == LIGHT_STATE_IDLE_MAINTENANCE;
- if (!lightIdle) {
- // Only switch to active state if we're not in either idle state
- scheduleReportActiveLocked(type, Process.myUid());
- addEvent(EVENT_NORMAL, type);
- }
- mActiveReason = ACTIVE_REASON_MOTION;
- mState = STATE_ACTIVE;
- mInactiveTimeout = timeout;
- mCurIdleBudget = 0;
- mMaintenanceStartTime = 0;
- EventLogTags.writeDeviceIdle(mState, type);
- becomeInactive = true;
- updateActiveConstraintsLocked();
- }
- if (mLightState == LIGHT_STATE_OVERRIDE) {
- // We went out of light idle mode because we had started deep idle mode... let's
- // now go back and reset things so we resume light idling if appropriate.
- mLightState = LIGHT_STATE_ACTIVE;
- EventLogTags.writeDeviceIdleLight(mLightState, type);
- becomeInactive = true;
- }
+ final boolean becomeInactive = mState != STATE_ACTIVE
+ || mLightState == LIGHT_STATE_OVERRIDE;
+ // We only want to change the IDLE state if it's OVERRIDE.
+ becomeActiveLocked(type, Process.myUid(), timeout, mLightState == LIGHT_STATE_OVERRIDE);
if (becomeInactive) {
becomeInactiveIfAppropriateLocked();
}