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Unified Diff: chrome/browser/win/jumplist_file_util.h

Issue 2752063002: Remove JumpListIconsOld directory and set upper limit for delete attempts (Closed)
Patch Set: Fix win_clang, update code comments. Created 3 years, 9 months ago
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Index: chrome/browser/win/jumplist_file_util.h
diff --git a/chrome/browser/win/jumplist_file_util.h b/chrome/browser/win/jumplist_file_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..63f9d4a58015d7752b52db73ecc3075b77325473
--- /dev/null
+++ b/chrome/browser/win/jumplist_file_util.h
@@ -0,0 +1,70 @@
+// Copyright (c) 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_WIN_JUMPLIST_FILE_UTIL_H_
+#define CHROME_BROWSER_WIN_JUMPLIST_FILE_UTIL_H_
+
+#include "base/files/file_path.h"
+
+// Maximum number of icon files allowed to delete per jumplist update.
+const int kMaxFilesDeleted = 100;
grt (UTC plus 2) 2017/03/23 11:24:58 nit: kMaxFilesToDelete or kFileDeleteLimit?
chengx 2017/03/23 21:16:12 Changed to kFileDeleteLimit.
+
+// Folder delete status enumeration, used in Delete* methods below.
+// This is used for UMA. Do not delete entries, and keep in sync with
+// histograms.xml.
+enum FolderDeleteResult {
+ SUCCEED = 0,
+ // File name's length exceeds MAX_PATH. This shouldn't happen.
+ FAIL_INVALID_FILE_PATH,
+ // JumpListIcons{,Old} directories are read-only. This may heppen.
+ FAIL_READ_ONLY_DIRECTORY,
+ // Since JumpListIcons{,Old} are directories. This shouldn't happen.
+ FAIL_DELETE_SINGLE_FILE,
+ // JumpListIcons{,Old} should not have sub-directories, so this shouldn't
+ // happen. If this happens, the root cause must be found.
+ FAIL_SUBDIRECTORY_EXISTS,
+ // Delete maximum files allowed succeeds. However, in the process of deleting
+ // these files, it fails to delete some other files. This may happen.
+ FAIL_DELETE_MAX_FILES_WITH_ERRORS,
+ // Fail to delete maximum files allowed when the maximum attempt failures
+ // are hit. This may heppen.
+ FAIL_MAX_DELETE_FAILURES,
+ // Fail to remove the raw empty directory. This may happen.
+ FAIL_REMOVE_RAW_DIRECTORY,
+ // Add new items before this one, always keep this one at the end.
+ END
+};
+
+// This method is similar to base::DeleteFileRecursive in
+// file_util_win.cc with the following differences.
+// 1) It has an input parameter |max_file_deleted| to specify the maximum files
+// allowed to delete as well as the maximum attempt failures allowd per run.
+// 2) It deletes only the files in |path|. All subdirectories in |path| are
+// untouched but are considered as attempt failures.
+// 3) Detailed delete status is returned.
+FolderDeleteResult DeleteFiles(const base::FilePath& path,
+ const base::FilePath::StringType& pattern,
+ const int max_file_deleted);
grt (UTC plus 2) 2017/03/23 11:24:58 nit: no const on primitive in params in decls like
brucedawson 2017/03/23 18:53:26 To clarify/expand - 'const int' is meaningless in
chengx 2017/03/23 21:16:12 Acknowledged.
chengx 2017/03/23 21:16:12 Done.
+
+// This method is similar to base::DeleteFile in file_util_win.cc
+// with the following differences.
+// 1) It has an input parameter |max_file_deleted| to specify the maximum files
+// allowed to delete as well as the maximum attempt failures allowd per run.
+// 2) It deletes only the files in |path|. All subdirectories in |path| are
+// untouched but are considered as attempt failures.
+// 3) |path| won't be removed even if all its contents are deleted successfully.
+// 4) Detailed delete status is returned.
+FolderDeleteResult DeleteDirectoryContent(const base::FilePath& path,
+ const int max_file_deleted);
+
+// This method firstly calls DeleteDirectoryContent() to delete the contents in
+// |path|. If |path| is empty after the call, it is removed.
+FolderDeleteResult DeleteDirectory(const base::FilePath& path,
+ const int max_file_deleted);
+
+// Deletes the directory at |path| and records the result to UMA.
+void DeleteDirectoryAndLogResults(const base::FilePath& path,
+ const int max_file_deleted);
+
+#endif // CHROME_BROWSER_WIN_JUMPLIST_FILE_UTIL_H_

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