Merge "Delay tryToRebind if application exit reason is LMK" (20d546c0) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wallpaper/WallpaperManagerService.java

+58 −13

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ import android.annotation.NonNull;
		import android.app.ActivityManager;
		import android.app.AppGlobals;
		import android.app.AppOpsManager;
		import android.app.ApplicationExitInfo;
		import android.app.ILocalWallpaperColorConsumer;
		import android.app.IWallpaperManager;
		import android.app.IWallpaperManagerCallback;
		@@ -189,6 +190,10 @@ public class WallpaperManagerService extends IWallpaperManager.Stub

		private final Object mLock = new Object();

		private static final double LMK_LOW_THRESHOLD_MEMORY_PERCENTAGE = 10;
		private static final int LMK_RECONNECT_REBIND_RETRIES = 3;
		private static final long LMK_RECONNECT_DELAY_MS = 5000;

		/**
		* Minimum time between crashes of a wallpaper service for us to consider
		* restarting it vs. just reverting to the static wallpaper.
		@@ -1208,6 +1213,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		/** Time in milliseconds until we expect the wallpaper to reconnect (unless we're in the
		* middle of an update). If exceeded, the wallpaper gets reset to the system default. */
		private static final long WALLPAPER_RECONNECT_TIMEOUT_MS = 10000;
		private int mLmkLimitRebindRetries = LMK_RECONNECT_REBIND_RETRIES;

		final WallpaperInfo mInfo;
		IWallpaperService mService;
		@@ -1448,6 +1454,36 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		&& mWallpaper.userId == mCurrentUserId
		&& !Objects.equals(mDefaultWallpaperComponent, wpService)
		&& !Objects.equals(mImageWallpaper, wpService)) {
		List<ApplicationExitInfo> reasonList =
		mActivityManager.getHistoricalProcessExitReasons(
		wpService.getPackageName(), 0, 1);
		int exitReason = ApplicationExitInfo.REASON_UNKNOWN;
		if (reasonList != null && !reasonList.isEmpty()) {
		ApplicationExitInfo info = reasonList.get(0);
		exitReason = info.getReason();
		}
		Slog.d(TAG, "exitReason: " + exitReason);
		// If exit reason is LOW_MEMORY_KILLER
		// delay the mTryToRebindRunnable for 10s
		if (exitReason == ApplicationExitInfo.REASON_LOW_MEMORY) {
		if (isRunningOnLowMemory()) {
		Slog.i(TAG, "Rebind is delayed due to lmk");
		mContext.getMainThreadHandler().postDelayed(mTryToRebindRunnable,
		LMK_RECONNECT_DELAY_MS);
		mLmkLimitRebindRetries = LMK_RECONNECT_REBIND_RETRIES;
		} else {
		if (mLmkLimitRebindRetries <= 0) {
		Slog.w(TAG, "Reverting to built-in wallpaper due to lmk!");
		clearWallpaperLocked(true, FLAG_SYSTEM, mWallpaper.userId,
		null);
		mLmkLimitRebindRetries = LMK_RECONNECT_REBIND_RETRIES;
		return;
		}
		mLmkLimitRebindRetries--;
		mContext.getMainThreadHandler().postDelayed(mTryToRebindRunnable,
		LMK_RECONNECT_DELAY_MS);
		}
		} else {
		// There is a race condition which causes
		// {@link #mWallpaper.wallpaperUpdating} to be false even if it is
		// currently updating since the broadcast notifying us is async.
		@@ -1464,6 +1500,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		tryToRebind();
		}
		}
		}
		} else {
		if (DEBUG_LIVE) {
		Slog.i(TAG, "Wallpaper changed during disconnect tracking; ignoring");
		@@ -1472,6 +1509,14 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
		}
		};

		private boolean isRunningOnLowMemory() {
		ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
		mActivityManager.getMemoryInfo(memoryInfo);
		double availableMBsInPercentage = memoryInfo.availMem / (double)memoryInfo.totalMem *
		100.0;
		return availableMBsInPercentage < LMK_LOW_THRESHOLD_MEMORY_PERCENTAGE;
		}

		/**
		* Called by a live wallpaper if its colors have changed.
		* @param primaryColors representation of wallpaper primary colors