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Side by Side Diff: sync/syncable/directory_backing_store.h

Issue 11624037: [sync] Componentize sync: Part 6: Add more SYNC_EXPORTs to files in src/sync/ (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix tests after rebase Created 8 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright 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 SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_ 5 #ifndef SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
6 #define SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_ 6 #define SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/scoped_ptr.h"
11 #include "base/threading/non_thread_safe.h" 11 #include "base/threading/non_thread_safe.h"
12 #include "sql/connection.h" 12 #include "sql/connection.h"
13 #include "sql/statement.h" 13 #include "sql/statement.h"
14 #include "sync/base/sync_export.h"
14 #include "sync/internal_api/public/base/model_type.h" 15 #include "sync/internal_api/public/base/model_type.h"
15 #include "sync/syncable/dir_open_result.h" 16 #include "sync/syncable/dir_open_result.h"
16 #include "sync/syncable/directory.h" 17 #include "sync/syncable/directory.h"
17 #include "sync/syncable/metahandle_set.h" 18 #include "sync/syncable/metahandle_set.h"
18 19
19 namespace sync_pb { 20 namespace sync_pb {
20 class EntitySpecifics; 21 class EntitySpecifics;
21 } 22 }
22 23
23 namespace syncer { 24 namespace syncer {
(...skipping 10 matching lines...) Expand all
34 // 35 //
35 // The DirectoryBackingStore will own an sqlite lock on its database for most of 36 // The DirectoryBackingStore will own an sqlite lock on its database for most of
36 // its lifetime. You must not have two DirectoryBackingStore objects accessing 37 // its lifetime. You must not have two DirectoryBackingStore objects accessing
37 // the database simultaneously. Because the lock exists at the database level, 38 // the database simultaneously. Because the lock exists at the database level,
38 // not even two separate browser instances would be able to acquire it 39 // not even two separate browser instances would be able to acquire it
39 // simultaneously. 40 // simultaneously.
40 // 41 //
41 // This class is abstract so that we can extend it in interesting ways for use 42 // This class is abstract so that we can extend it in interesting ways for use
42 // in tests. The concrete class used in non-test scenarios is 43 // in tests. The concrete class used in non-test scenarios is
43 // OnDiskDirectoryBackingStore. 44 // OnDiskDirectoryBackingStore.
44 class DirectoryBackingStore : public base::NonThreadSafe { 45 class SYNC_EXPORT_PRIVATE DirectoryBackingStore : public base::NonThreadSafe {
45 public: 46 public:
46 explicit DirectoryBackingStore(const std::string& dir_name); 47 explicit DirectoryBackingStore(const std::string& dir_name);
47 virtual ~DirectoryBackingStore(); 48 virtual ~DirectoryBackingStore();
48 49
49 // Loads and drops all currently persisted meta entries into |entry_bucket| 50 // Loads and drops all currently persisted meta entries into |entry_bucket|
50 // and loads appropriate persisted kernel info into |info_bucket|. 51 // and loads appropriate persisted kernel info into |info_bucket|.
51 // 52 //
52 // This function can perform some cleanup tasks behind the scenes. It will 53 // This function can perform some cleanup tasks behind the scenes. It will
53 // clean up unused entries from the database and migrate to the latest 54 // clean up unused entries from the database and migrate to the latest
54 // database version. The caller can safely ignore these details. 55 // database version. The caller can safely ignore these details.
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163 bool MigrateVersion83To84(); 164 bool MigrateVersion83To84();
164 bool MigrateVersion84To85(); 165 bool MigrateVersion84To85();
165 166
166 scoped_ptr<sql::Connection> db_; 167 scoped_ptr<sql::Connection> db_;
167 sql::Statement save_entry_statement_; 168 sql::Statement save_entry_statement_;
168 std::string dir_name_; 169 std::string dir_name_;
169 170
170 // Set to true if migration left some old columns around that need to be 171 // Set to true if migration left some old columns around that need to be
171 // discarded. 172 // discarded.
172 bool needs_column_refresh_; 173 bool needs_column_refresh_;
173
174 DISALLOW_COPY_AND_ASSIGN(DirectoryBackingStore);
rlarocque 2012/12/22 02:00:49 Why?
Raghu Simha 2012/12/22 02:25:02 Probably happened while I was debugging. Restored.
175 }; 174 };
176 175
177 } // namespace syncable 176 } // namespace syncable
178 } // namespace syncer 177 } // namespace syncer
179 178
180 #endif // SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_ 179 #endif // SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
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