| // Copyright 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_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |
| #define SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |
| |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "sync/base/sync_export.h" |
| #include "sync/syncable/directory_backing_store.h" |
| |
| namespace syncer { |
| namespace syncable { |
| |
| // This implementation of DirectoryBackingStore is used in tests that do not |
| // require us to write to a file. An in-memory sqlite database is much faster |
| // than an on-disk database, so this can result in significant speedups in our |
| // unit tests. |
| // |
| // An InMemoryDirectoryBackingStore cannot load data from existing databases. |
| // When an InMemoryDirectoryBackingStore is destroyed, all data stored in this |
| // database is lost. If these limitations are a problem for you, consider using |
| // TestDirectoryBackingStore. |
| class SYNC_EXPORT InMemoryDirectoryBackingStore : public DirectoryBackingStore { |
| public: |
| explicit InMemoryDirectoryBackingStore(const std::string& dir_name); |
| DirOpenResult Load(Directory::MetahandlesMap* handles_map, |
| JournalIndex* delete_journals, |
| MetahandleSet* metahandles_to_purge, |
| Directory::KernelLoadInfo* kernel_load_info) override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(InMemoryDirectoryBackingStore); |
| }; |
| |
| } // namespace syncable |
| } // namespace syncer |
| |
| #endif // SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |