| // Copyright (c) 2012 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 SYNC_SYNCABLE_ON_DISK_DIRECTORY_BACKING_STORE_H_ |
| #define SYNC_SYNCABLE_ON_DISK_DIRECTORY_BACKING_STORE_H_ |
| |
| #include "base/file_path.h" |
| #include "sync/syncable/directory_backing_store.h" |
| |
| namespace syncer { |
| namespace syncable { |
| |
| // This is the concrete class that provides a useful implementation of |
| // DirectoryBackingStore. |
| class OnDiskDirectoryBackingStore : public DirectoryBackingStore { |
| public: |
| OnDiskDirectoryBackingStore(const std::string& dir_name, |
| const FilePath& backing_filepath); |
| virtual ~OnDiskDirectoryBackingStore(); |
| virtual DirOpenResult Load( |
| MetahandlesIndex* entry_bucket, |
| Directory::KernelLoadInfo* kernel_load_info) OVERRIDE; |
| |
| // A helper function that will make one attempt to load the directory. |
| // Unlike Load(), it does not attempt to recover from failure. |
| DirOpenResult TryLoad( |
| MetahandlesIndex* entry_bucket, |
| Directory::KernelLoadInfo* kernel_load_info); |
| |
| protected: |
| // Subclasses may override this to avoid a possible DCHECK. |
| virtual void ReportFirstTryOpenFailure(); |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(DirectoryBackingStoreTest, MinorCorruption); |
| |
| bool allow_failure_for_test_; |
| FilePath backing_filepath_; |
| }; |
| |
| } // namespace syncable |
| } // namespace syncer |
| |
| #endif // SYNC_SYNCABLE_ON_DISK_DIRECTORY_BACKING_STORE_H_ |