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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 // Utility functions manipulating syncable::Entries, intended for use by the | 5 // Utility functions manipulating syncable::Entries, intended for use by the |
6 // syncer. | 6 // syncer. |
7 | 7 |
8 #ifndef CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ | 8 #ifndef CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ |
9 #define CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ | 9 #define CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ |
10 | 10 |
11 #include <set> | 11 #include <set> |
12 #include <string> | 12 #include <string> |
13 #include <vector> | 13 #include <vector> |
14 | 14 |
15 #include "build/build_config.h" | 15 #include "build/build_config.h" |
16 #include "chrome/browser/sync/engine/syncer.h" | 16 #include "chrome/browser/sync/engine/syncer.h" |
17 #include "chrome/browser/sync/engine/syncer_types.h" | 17 #include "chrome/browser/sync/engine/syncer_types.h" |
18 #include "chrome/browser/sync/syncable/syncable.h" | 18 #include "chrome/browser/sync/syncable/syncable.h" |
19 #include "chrome/browser/sync/syncable/syncable_id.h" | 19 #include "chrome/browser/sync/syncable/syncable_id.h" |
20 #include "chrome/browser/sync/util/path_helpers.h" | 20 #include "chrome/browser/sync/util/path_helpers.h" |
21 #include "chrome/browser/sync/util/sync_types.h" | 21 #include "chrome/browser/sync/util/sync_types.h" |
22 | 22 |
23 namespace browser_sync { | 23 namespace browser_sync { |
24 | 24 |
25 class SyncEntity; | 25 class SyncEntity; |
26 | 26 |
27 class SyncerUtil { | 27 class SyncerUtil { |
28 public: | 28 public: |
29 // TODO(ncarter): Remove unique-in-parent title support and name conflicts. | |
30 static syncable::Id GetNameConflictingItemId( | |
31 syncable::BaseTransaction* trans, | |
32 const syncable::Id& parent_id, | |
33 const PathString& server_name); | |
34 | |
35 static void ChangeEntryIDAndUpdateChildren( | 29 static void ChangeEntryIDAndUpdateChildren( |
36 syncable::WriteTransaction* trans, | 30 syncable::WriteTransaction* trans, |
37 syncable::MutableEntry* entry, | 31 syncable::MutableEntry* entry, |
38 const syncable::Id& new_id, | 32 const syncable::Id& new_id, |
39 syncable::Directory::ChildHandles* children); | 33 syncable::Directory::ChildHandles* children); |
40 | 34 |
41 // Returns the number of unsynced entries. | 35 // Returns the number of unsynced entries. |
42 static int GetUnsyncedEntries(syncable::BaseTransaction* trans, | 36 static int GetUnsyncedEntries(syncable::BaseTransaction* trans, |
43 std::vector<int64> *handles); | 37 std::vector<int64> *handles); |
44 | 38 |
45 static void ChangeEntryIDAndUpdateChildren(syncable::WriteTransaction* trans, | 39 static void ChangeEntryIDAndUpdateChildren(syncable::WriteTransaction* trans, |
46 syncable::MutableEntry* entry, | 40 syncable::MutableEntry* entry, |
47 const syncable::Id& new_id); | 41 const syncable::Id& new_id); |
48 | 42 |
49 static void AttemptReuniteLostCommitResponses( | 43 static void AttemptReuniteLostCommitResponses( |
50 syncable::WriteTransaction* trans, | 44 syncable::WriteTransaction* trans, |
51 const SyncEntity& server_entry, | 45 const SyncEntity& server_entry, |
52 const std::string& client_id); | 46 const std::string& client_id); |
53 | 47 |
54 static UpdateAttemptResponse AttemptToUpdateEntry( | 48 static UpdateAttemptResponse AttemptToUpdateEntry( |
55 syncable::WriteTransaction* const trans, | 49 syncable::WriteTransaction* const trans, |
56 syncable::MutableEntry* const entry, | 50 syncable::MutableEntry* const entry, |
57 ConflictResolver* resolver); | 51 ConflictResolver* resolver); |
58 | 52 |
59 static UpdateAttemptResponse AttemptToUpdateEntryWithoutMerge( | |
60 syncable::WriteTransaction* const trans, | |
61 syncable::MutableEntry* const entry, | |
62 syncable::Id* const conflicting_id); | |
63 | 53 |
64 // Pass in name to avoid redundant UTF8 conversion. | 54 // Pass in name to avoid redundant UTF8 conversion. |
65 static void UpdateServerFieldsFromUpdate( | 55 static void UpdateServerFieldsFromUpdate( |
66 syncable::MutableEntry* local_entry, | 56 syncable::MutableEntry* local_entry, |
67 const SyncEntity& server_entry, | 57 const SyncEntity& server_entry, |
68 const syncable::SyncName& name); | 58 const PathString& name); |
69 | 59 |
70 static void ApplyExtendedAttributes( | 60 static void ApplyExtendedAttributes( |
71 syncable::MutableEntry* local_entry, | 61 syncable::MutableEntry* local_entry, |
72 const SyncEntity& server_entry); | 62 const SyncEntity& server_entry); |
73 | 63 |
74 // Creates a new Entry iff no Entry exists with the given id. | 64 // Creates a new Entry iff no Entry exists with the given id. |
75 static void CreateNewEntry(syncable::WriteTransaction *trans, | 65 static void CreateNewEntry(syncable::WriteTransaction *trans, |
76 const syncable::Id& id); | 66 const syncable::Id& id); |
77 | 67 |
78 static bool ServerAndLocalEntriesMatch(syncable::Entry* entry); | 68 static bool ServerAndLocalEntriesMatch(syncable::Entry* entry); |
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179 // As we truncate server times on the client for posix and on the server for | 169 // As we truncate server times on the client for posix and on the server for |
180 // windows we need two ClientAndServerTimeMatch fucntions. | 170 // windows we need two ClientAndServerTimeMatch fucntions. |
181 inline bool ClientAndServerTimeMatch(int64 client_time, int64 server_time) { | 171 inline bool ClientAndServerTimeMatch(int64 client_time, int64 server_time) { |
182 // Compare at the coarser timescale (client) | 172 // Compare at the coarser timescale (client) |
183 return client_time == ServerTimeToClientTime(server_time); | 173 return client_time == ServerTimeToClientTime(server_time); |
184 } | 174 } |
185 #else | 175 #else |
186 // The sync server uses Java Times (ms since 1970) | 176 // The sync server uses Java Times (ms since 1970) |
187 // and the client uses FILETIMEs (ns since 1601) so we need to convert | 177 // and the client uses FILETIMEs (ns since 1601) so we need to convert |
188 // between the timescales. | 178 // between the timescales. |
| 179 // TODO(sync): Fix this. No need to use two timescales. |
189 inline int64 ServerTimeToClientTime(int64 server_time) { | 180 inline int64 ServerTimeToClientTime(int64 server_time) { |
190 return server_time * GG_LONGLONG(10000) + GG_LONGLONG(116444736000000000); | 181 return server_time * GG_LONGLONG(10000) + GG_LONGLONG(116444736000000000); |
191 } | 182 } |
192 | 183 |
193 inline int64 ClientTimeToServerTime(int64 client_time) { | 184 inline int64 ClientTimeToServerTime(int64 client_time) { |
194 return (client_time - GG_LONGLONG(116444736000000000)) / GG_LONGLONG(10000); | 185 return (client_time - GG_LONGLONG(116444736000000000)) / GG_LONGLONG(10000); |
195 } | 186 } |
196 | 187 |
197 inline bool ClientAndServerTimeMatch(int64 client_time, int64 server_time) { | 188 inline bool ClientAndServerTimeMatch(int64 client_time, int64 server_time) { |
198 // Compare at the coarser timescale (server) | 189 // Compare at the coarser timescale (server) |
199 return ClientTimeToServerTime(client_time) == server_time; | 190 return ClientTimeToServerTime(client_time) == server_time; |
200 } | 191 } |
201 #endif | 192 #endif |
202 | 193 |
203 } // namespace browser_sync | 194 } // namespace browser_sync |
204 | 195 |
205 #endif // CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ | 196 #endif // CHROME_BROWSER_SYNC_ENGINE_SYNCER_UTIL_H_ |
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