Removing disk access from startActivity thread
Code was checking whether the directory for recent_images existed in
many places unnecessarily causing StrictMode violations. Moved the
code to only attempt to check and create the directory before
actually writing to disk.
Bug: b/28195831
Change-Id: I05f77a10f1dafc8cc0b1836b62352d56549ac1ee
diff --git a/services/core/java/com/android/server/am/TaskPersister.java b/services/core/java/com/android/server/am/TaskPersister.java
index a2472ac..48fecd5 100644
--- a/services/core/java/com/android/server/am/TaskPersister.java
+++ b/services/core/java/com/android/server/am/TaskPersister.java
@@ -17,8 +17,6 @@
package com.android.server.am;
import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.app.ActivityManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Debug;
@@ -519,7 +517,7 @@
if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: persistentTaskIds=" + persistentTaskIds +
" files=" + files);
if (files == null) {
- Slog.e(TAG, "File error accessing recents directory (too many files open?).");
+ Slog.e(TAG, "File error accessing recents directory (directory doesn't exist?).");
return;
}
for (int fileNdx = 0; fileNdx < files.length; ++fileNdx) {
@@ -597,15 +595,12 @@
}
static File getUserImagesDir(int userId) {
- File userImagesDir = new File(Environment.getDataSystemCeDirectory(userId), IMAGES_DIRNAME);
+ return new File(Environment.getDataSystemCeDirectory(userId), IMAGES_DIRNAME);
+ }
- if (!userImagesDir.exists()) {
- if (!userImagesDir.mkdir()) {
- Slog.e(TAG, "Failure creating images directory for user " + userId + ": "
- + userImagesDir);
- }
- }
- return userImagesDir;
+ private static boolean createParentDirectory(String filePath) {
+ File parentDir = new File(filePath).getParentFile();
+ return parentDir.exists() || parentDir.mkdirs();
}
private class LazyTaskWriterThread extends Thread {
@@ -693,6 +688,10 @@
if (item instanceof ImageWriteQueueItem) {
ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item;
final String filePath = imageWriteQueueItem.mFilePath;
+ if (!createParentDirectory(filePath)) {
+ Slog.e(TAG, "Error while creating images directory for file: " + filePath);
+ continue;
+ }
final Bitmap bitmap = imageWriteQueueItem.mImage;
if (DEBUG) Slog.d(TAG, "writing bitmap: filename=" + filePath);
FileOutputStream imageFile = null;