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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WEBKIT_FILEAPI_SANDBOX_ORIGIN_DATABASE_H_ | |
6 #define WEBKIT_FILEAPI_SANDBOX_ORIGIN_DATABASE_H_ | |
7 | |
8 #include <string> | |
9 #include <utility> | |
10 #include <vector> | |
11 | |
12 #include "base/files/file_path.h" | |
13 #include "base/memory/scoped_ptr.h" | |
14 #include "base/time.h" | |
15 #include "webkit/storage/webkit_storage_export.h" | |
16 | |
17 namespace leveldb { | |
18 class DB; | |
19 class Status; | |
20 } | |
21 | |
22 namespace tracked_objects { | |
23 class Location; | |
24 } | |
25 | |
26 namespace fileapi { | |
27 | |
28 // All methods of this class other than the constructor may be used only from | |
29 // the browser's FILE thread. The constructor may be used on any thread. | |
30 class WEBKIT_STORAGE_EXPORT_PRIVATE SandboxOriginDatabase { | |
31 public: | |
32 struct WEBKIT_STORAGE_EXPORT_PRIVATE OriginRecord { | |
33 std::string origin; | |
34 base::FilePath path; | |
35 | |
36 OriginRecord(); | |
37 OriginRecord(const std::string& origin, const base::FilePath& path); | |
38 ~OriginRecord(); | |
39 }; | |
40 | |
41 // Only one instance of SandboxOriginDatabase should exist for a given path | |
42 // at a given time. | |
43 explicit SandboxOriginDatabase(const base::FilePath& file_system_directory); | |
44 ~SandboxOriginDatabase(); | |
45 | |
46 bool HasOriginPath(const std::string& origin); | |
47 | |
48 // This will produce a unique path and add it to its database, if it's not | |
49 // already present. | |
50 bool GetPathForOrigin(const std::string& origin, base::FilePath* directory); | |
51 | |
52 // Also returns success if the origin is not found. | |
53 bool RemovePathForOrigin(const std::string& origin); | |
54 | |
55 bool ListAllOrigins(std::vector<OriginRecord>* origins); | |
56 | |
57 // This will release all database resources in use; call it to save memory. | |
58 void DropDatabase(); | |
59 | |
60 private: | |
61 enum RecoveryOption { | |
62 REPAIR_ON_CORRUPTION, | |
63 DELETE_ON_CORRUPTION, | |
64 FAIL_ON_CORRUPTION, | |
65 }; | |
66 | |
67 bool Init(RecoveryOption recovery_option); | |
68 bool RepairDatabase(const std::string& db_path); | |
69 void HandleError(const tracked_objects::Location& from_here, | |
70 const leveldb::Status& status); | |
71 void ReportInitStatus(const leveldb::Status& status); | |
72 bool GetLastPathNumber(int* number); | |
73 | |
74 base::FilePath file_system_directory_; | |
75 scoped_ptr<leveldb::DB> db_; | |
76 base::Time last_reported_time_; | |
77 DISALLOW_COPY_AND_ASSIGN(SandboxOriginDatabase); | |
78 }; | |
79 | |
80 } // namespace fileapi | |
81 | |
82 #endif // WEBKIT_FILEAPI_SANDBOX_ORIGIN_DATABASE_H_ | |
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