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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 #include "components/history/core/browser/history_database.h" | 5 #include "components/history/core/browser/history_database.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 | 8 |
9 #include <algorithm> | 9 #include <algorithm> |
10 #include <set> | 10 #include <set> |
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29 #include "base/mac/mac_util.h" | 29 #include "base/mac/mac_util.h" |
30 #endif | 30 #endif |
31 | 31 |
32 namespace history { | 32 namespace history { |
33 | 33 |
34 namespace { | 34 namespace { |
35 | 35 |
36 // Current version number. We write databases at the "current" version number, | 36 // Current version number. We write databases at the "current" version number, |
37 // but any previous version that can read the "compatible" one can make do with | 37 // but any previous version that can read the "compatible" one can make do with |
38 // our database without *too* many bad effects. | 38 // our database without *too* many bad effects. |
39 const int kCurrentVersionNumber = 34; | 39 const int kCurrentVersionNumber = 35; |
40 const int kCompatibleVersionNumber = 16; | 40 const int kCompatibleVersionNumber = 16; |
41 const char kEarlyExpirationThresholdKey[] = "early_expiration_threshold"; | 41 const char kEarlyExpirationThresholdKey[] = "early_expiration_threshold"; |
42 const int kMaxHostsInMemory = 10000; | 42 const int kMaxHostsInMemory = 10000; |
43 | 43 |
44 } // namespace | 44 } // namespace |
45 | 45 |
46 HistoryDatabase::HistoryDatabase( | 46 HistoryDatabase::HistoryDatabase( |
47 DownloadInterruptReason download_interrupt_reason_none, | 47 DownloadInterruptReason download_interrupt_reason_none, |
48 DownloadInterruptReason download_interrupt_reason_crash) | 48 DownloadInterruptReason download_interrupt_reason_crash) |
49 : DownloadDatabase(download_interrupt_reason_none, | 49 : DownloadDatabase(download_interrupt_reason_none, |
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544 | 544 |
545 if (cur_version == 33) { | 545 if (cur_version == 33) { |
546 if (!MigrateDownloadLastAccessTime()) { | 546 if (!MigrateDownloadLastAccessTime()) { |
547 LOG(WARNING) << "Unable to migrate to version 34"; | 547 LOG(WARNING) << "Unable to migrate to version 34"; |
548 return sql::INIT_FAILURE; | 548 return sql::INIT_FAILURE; |
549 } | 549 } |
550 cur_version++; | 550 cur_version++; |
551 meta_table_.SetVersionNumber(cur_version); | 551 meta_table_.SetVersionNumber(cur_version); |
552 } | 552 } |
553 | 553 |
| 554 if (cur_version == 34) { |
| 555 if (!MigrateDownloadVisible()) { |
| 556 LOG(WARNING) << "Unable to migrate to version 35"; |
| 557 return sql::INIT_FAILURE; |
| 558 } |
| 559 cur_version++; |
| 560 meta_table_.SetVersionNumber(cur_version); |
| 561 } |
| 562 |
554 // When the version is too old, we just try to continue anyway, there should | 563 // When the version is too old, we just try to continue anyway, there should |
555 // not be a released product that makes a database too old for us to handle. | 564 // not be a released product that makes a database too old for us to handle. |
556 LOG_IF(WARNING, cur_version < GetCurrentVersion()) << | 565 LOG_IF(WARNING, cur_version < GetCurrentVersion()) << |
557 "History database version " << cur_version << " is too old to handle."; | 566 "History database version " << cur_version << " is too old to handle."; |
558 | 567 |
559 return sql::INIT_OK; | 568 return sql::INIT_OK; |
560 } | 569 } |
561 | 570 |
562 #if !defined(OS_WIN) | 571 #if !defined(OS_WIN) |
563 void HistoryDatabase::MigrateTimeEpoch() { | 572 void HistoryDatabase::MigrateTimeEpoch() { |
564 // Update all the times in the URLs and visits table in the main database. | 573 // Update all the times in the URLs and visits table in the main database. |
565 ignore_result(db_.Execute( | 574 ignore_result(db_.Execute( |
566 "UPDATE urls " | 575 "UPDATE urls " |
567 "SET last_visit_time = last_visit_time + 11644473600000000 " | 576 "SET last_visit_time = last_visit_time + 11644473600000000 " |
568 "WHERE id IN (SELECT id FROM urls WHERE last_visit_time > 0);")); | 577 "WHERE id IN (SELECT id FROM urls WHERE last_visit_time > 0);")); |
569 ignore_result(db_.Execute( | 578 ignore_result(db_.Execute( |
570 "UPDATE visits " | 579 "UPDATE visits " |
571 "SET visit_time = visit_time + 11644473600000000 " | 580 "SET visit_time = visit_time + 11644473600000000 " |
572 "WHERE id IN (SELECT id FROM visits WHERE visit_time > 0);")); | 581 "WHERE id IN (SELECT id FROM visits WHERE visit_time > 0);")); |
573 ignore_result(db_.Execute( | 582 ignore_result(db_.Execute( |
574 "UPDATE segment_usage " | 583 "UPDATE segment_usage " |
575 "SET time_slot = time_slot + 11644473600000000 " | 584 "SET time_slot = time_slot + 11644473600000000 " |
576 "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);")); | 585 "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);")); |
577 } | 586 } |
578 #endif | 587 #endif |
579 | 588 |
580 } // namespace history | 589 } // namespace history |
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