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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ | 5 #ifndef SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ |
6 #define SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ | 6 #define SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ |
7 | 7 |
8 #include "base/files/file_path.h" | 8 #include "base/files/file_path.h" |
9 #include "sync/base/sync_export.h" | 9 #include "sync/base/sync_export.h" |
10 #include "sync/syncable/directory_backing_store.h" | 10 #include "sync/syncable/directory_backing_store.h" |
11 | 11 |
12 namespace syncer { | 12 namespace syncer { |
13 namespace syncable { | 13 namespace syncable { |
14 | 14 |
15 // Store used for backing up user's data before first sync. It creates an | 15 // Store used for backing up user's data before first sync. It creates an |
16 // in-memory store first and switch to on-disk store if SaveChanges() is | 16 // in-memory store first and switch to on-disk store if SaveChanges() is |
17 // called, which only happens when SyncBackupManager is shut down and a | 17 // called, which only happens when SyncBackupManager is shut down and a |
18 // syncing backend is to be created. Thus we guarantee that user data is not | 18 // syncing backend is to be created. Thus we guarantee that user data is not |
19 // persisted until user is actually going to sync. | 19 // persisted until user is actually going to sync. |
20 class SYNC_EXPORT_PRIVATE DeferredOnDiskDirectoryBackingStore | 20 class SYNC_EXPORT_PRIVATE DeferredOnDiskDirectoryBackingStore |
21 : public DirectoryBackingStore { | 21 : public DirectoryBackingStore { |
22 public: | 22 public: |
23 DeferredOnDiskDirectoryBackingStore(const std::string& dir_name, | 23 DeferredOnDiskDirectoryBackingStore(const std::string& dir_name, |
24 const base::FilePath& backing_filepath); | 24 const base::FilePath& backing_filepath); |
25 virtual ~DeferredOnDiskDirectoryBackingStore(); | 25 virtual ~DeferredOnDiskDirectoryBackingStore(); |
26 virtual DirOpenResult Load( | 26 virtual DirOpenResult Load( |
27 Directory::MetahandlesMap* handles_map, | 27 Directory::MetahandlesMap* handles_map, |
28 JournalIndex* delete_journals, | 28 JournalIndex* delete_journals, |
29 Directory::KernelLoadInfo* kernel_load_info) OVERRIDE; | 29 Directory::KernelLoadInfo* kernel_load_info) override; |
30 virtual bool SaveChanges(const Directory::SaveChangesSnapshot& snapshot) | 30 virtual bool SaveChanges(const Directory::SaveChangesSnapshot& snapshot) |
31 OVERRIDE; | 31 override; |
32 | 32 |
33 private: | 33 private: |
34 base::FilePath backing_filepath_; | 34 base::FilePath backing_filepath_; |
35 | 35 |
36 // Whether current DB is on disk. | 36 // Whether current DB is on disk. |
37 bool db_is_on_disk_; | 37 bool db_is_on_disk_; |
38 | 38 |
39 DISALLOW_COPY_AND_ASSIGN(DeferredOnDiskDirectoryBackingStore); | 39 DISALLOW_COPY_AND_ASSIGN(DeferredOnDiskDirectoryBackingStore); |
40 }; | 40 }; |
41 | 41 |
42 } // namespace syncable | 42 } // namespace syncable |
43 } // namespace syncer | 43 } // namespace syncer |
44 | 44 |
45 #endif // SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ | 45 #endif // SYNC_SYNCABLE_DEFERRED_ON_DISK_DIRECTORY_BACKING_STORE_H_ |
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