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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 = 31; | 39 const int kCurrentVersionNumber = 32; |
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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501 | 501 |
502 if (cur_version == 30) { | 502 if (cur_version == 30) { |
503 if (!MigrateDownloadTabUrl()) { | 503 if (!MigrateDownloadTabUrl()) { |
504 LOG(WARNING) << "Unable to migrate history to version 31"; | 504 LOG(WARNING) << "Unable to migrate history to version 31"; |
505 return sql::INIT_FAILURE; | 505 return sql::INIT_FAILURE; |
506 } | 506 } |
507 cur_version++; | 507 cur_version++; |
508 meta_table_.SetVersionNumber(cur_version); | 508 meta_table_.SetVersionNumber(cur_version); |
509 } | 509 } |
510 | 510 |
| 511 if (cur_version == 31) { |
| 512 if (!MigrateDownloadSiteInstanceUrl()) { |
| 513 LOG(WARNING) << "Unable to migrate history to version 32"; |
| 514 return sql::INIT_FAILURE; |
| 515 } |
| 516 cur_version++; |
| 517 meta_table_.SetVersionNumber(cur_version); |
| 518 } |
| 519 |
511 // When the version is too old, we just try to continue anyway, there should | 520 // When the version is too old, we just try to continue anyway, there should |
512 // not be a released product that makes a database too old for us to handle. | 521 // not be a released product that makes a database too old for us to handle. |
513 LOG_IF(WARNING, cur_version < GetCurrentVersion()) << | 522 LOG_IF(WARNING, cur_version < GetCurrentVersion()) << |
514 "History database version " << cur_version << " is too old to handle."; | 523 "History database version " << cur_version << " is too old to handle."; |
515 | 524 |
516 return sql::INIT_OK; | 525 return sql::INIT_OK; |
517 } | 526 } |
518 | 527 |
519 #if !defined(OS_WIN) | 528 #if !defined(OS_WIN) |
520 void HistoryDatabase::MigrateTimeEpoch() { | 529 void HistoryDatabase::MigrateTimeEpoch() { |
521 // Update all the times in the URLs and visits table in the main database. | 530 // Update all the times in the URLs and visits table in the main database. |
522 ignore_result(db_.Execute( | 531 ignore_result(db_.Execute( |
523 "UPDATE urls " | 532 "UPDATE urls " |
524 "SET last_visit_time = last_visit_time + 11644473600000000 " | 533 "SET last_visit_time = last_visit_time + 11644473600000000 " |
525 "WHERE id IN (SELECT id FROM urls WHERE last_visit_time > 0);")); | 534 "WHERE id IN (SELECT id FROM urls WHERE last_visit_time > 0);")); |
526 ignore_result(db_.Execute( | 535 ignore_result(db_.Execute( |
527 "UPDATE visits " | 536 "UPDATE visits " |
528 "SET visit_time = visit_time + 11644473600000000 " | 537 "SET visit_time = visit_time + 11644473600000000 " |
529 "WHERE id IN (SELECT id FROM visits WHERE visit_time > 0);")); | 538 "WHERE id IN (SELECT id FROM visits WHERE visit_time > 0);")); |
530 ignore_result(db_.Execute( | 539 ignore_result(db_.Execute( |
531 "UPDATE segment_usage " | 540 "UPDATE segment_usage " |
532 "SET time_slot = time_slot + 11644473600000000 " | 541 "SET time_slot = time_slot + 11644473600000000 " |
533 "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);")); | 542 "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);")); |
534 } | 543 } |
535 #endif | 544 #endif |
536 | 545 |
537 } // namespace history | 546 } // namespace history |
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