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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ | 5 #ifndef SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |
6 #define CHROME_BROWSER_SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ | 6 #define SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "chrome/browser/sync/syncable/directory_backing_store.h" | 9 #include "sync/syncable/directory_backing_store.h" |
10 | 10 |
11 namespace syncable { | 11 namespace syncable { |
12 | 12 |
13 // This implementation of DirectoryBackingStore is used in tests that do not | 13 // This implementation of DirectoryBackingStore is used in tests that do not |
14 // require us to write to a file. An in-memory sqlite database is much faster | 14 // require us to write to a file. An in-memory sqlite database is much faster |
15 // than an on-disk database, so this can result in significant speedups in our | 15 // than an on-disk database, so this can result in significant speedups in our |
16 // unit tests. | 16 // unit tests. |
17 // | 17 // |
18 // An InMemoryDirectoryBackingStore cannot load data from existing databases. | 18 // An InMemoryDirectoryBackingStore cannot load data from existing databases. |
19 // When an InMemoryDirectoryBackingStore is destroyed, all data stored in this | 19 // When an InMemoryDirectoryBackingStore is destroyed, all data stored in this |
20 // database is lost. If these limitations are a problem for you, consider using | 20 // database is lost. If these limitations are a problem for you, consider using |
21 // TestDirectoryBackingStore. | 21 // TestDirectoryBackingStore. |
22 class InMemoryDirectoryBackingStore : public DirectoryBackingStore { | 22 class InMemoryDirectoryBackingStore : public DirectoryBackingStore { |
23 public: | 23 public: |
24 explicit InMemoryDirectoryBackingStore(const std::string& dir_name); | 24 explicit InMemoryDirectoryBackingStore(const std::string& dir_name); |
25 virtual DirOpenResult Load( | 25 virtual DirOpenResult Load( |
26 MetahandlesIndex* entry_bucket, | 26 MetahandlesIndex* entry_bucket, |
27 Directory::KernelLoadInfo* kernel_load_info) OVERRIDE; | 27 Directory::KernelLoadInfo* kernel_load_info) OVERRIDE; |
28 }; | 28 }; |
29 | 29 |
30 } // namespace syncable | 30 } // namespace syncable |
31 | 31 |
32 #endif // CHROME_BROWSER_SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ | 32 #endif // SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_ |
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