dom/indexedDB/FileInfo.h@b8a032363ba2 (annotated)
dom/indexedDB/FileInfo.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef mozilla_dom_indexeddb_fileinfo_h__ |
| michael@0 | 8 | #define mozilla_dom_indexeddb_fileinfo_h__ |
| michael@0 | 9 | |
| michael@0 | 10 | #include "IndexedDatabase.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #include "FileManager.h" |
| michael@0 | 13 | #include "IndexedDatabaseManager.h" |
| michael@0 | 14 | |
| michael@0 | 15 | BEGIN_INDEXEDDB_NAMESPACE |
| michael@0 | 16 | |
| michael@0 | 17 | class FileInfo |
| michael@0 | 18 | { |
| michael@0 | 19 | friend class FileManager; |
| michael@0 | 20 | |
| michael@0 | 21 | public: |
| michael@0 | 22 | FileInfo(FileManager* aFileManager) |
| michael@0 | 23 | : mFileManager(aFileManager) |
| michael@0 | 24 | { } |
| michael@0 | 25 | |
| michael@0 | 26 | virtual ~FileInfo() |
| michael@0 | 27 | { } |
| michael@0 | 28 | |
| michael@0 | 29 | static |
| michael@0 | 30 | FileInfo* Create(FileManager* aFileManager, int64_t aId); |
| michael@0 | 31 | |
| michael@0 | 32 | void AddRef() |
| michael@0 | 33 | { |
| michael@0 | 34 | if (IndexedDatabaseManager::IsClosed()) { |
| michael@0 | 35 | ++mRefCnt; |
| michael@0 | 36 | } |
| michael@0 | 37 | else { |
| michael@0 | 38 | UpdateReferences(mRefCnt, 1); |
| michael@0 | 39 | } |
| michael@0 | 40 | } |
| michael@0 | 41 | |
| michael@0 | 42 | void Release() |
| michael@0 | 43 | { |
| michael@0 | 44 | if (IndexedDatabaseManager::IsClosed()) { |
| michael@0 | 45 | nsrefcnt count = --mRefCnt; |
| michael@0 | 46 | if (count == 0) { |
| michael@0 | 47 | mRefCnt = 1; |
| michael@0 | 48 | delete this; |
| michael@0 | 49 | } |
| michael@0 | 50 | } |
| michael@0 | 51 | else { |
| michael@0 | 52 | UpdateReferences(mRefCnt, -1); |
| michael@0 | 53 | } |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | void UpdateDBRefs(int32_t aDelta) |
| michael@0 | 57 | { |
| michael@0 | 58 | UpdateReferences(mDBRefCnt, aDelta); |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | void ClearDBRefs() |
| michael@0 | 62 | { |
| michael@0 | 63 | UpdateReferences(mDBRefCnt, 0, true); |
| michael@0 | 64 | } |
| michael@0 | 65 | |
| michael@0 | 66 | void UpdateSliceRefs(int32_t aDelta) |
| michael@0 | 67 | { |
| michael@0 | 68 | UpdateReferences(mSliceRefCnt, aDelta); |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | void GetReferences(int32_t* aRefCnt, int32_t* aDBRefCnt, |
| michael@0 | 72 | int32_t* aSliceRefCnt); |
| michael@0 | 73 | |
| michael@0 | 74 | FileManager* Manager() const |
| michael@0 | 75 | { |
| michael@0 | 76 | return mFileManager; |
| michael@0 | 77 | } |
| michael@0 | 78 | |
| michael@0 | 79 | virtual int64_t Id() const = 0; |
| michael@0 | 80 | |
| michael@0 | 81 | private: |
| michael@0 | 82 | void UpdateReferences(ThreadSafeAutoRefCnt& aRefCount, int32_t aDelta, |
| michael@0 | 83 | bool aClear = false); |
| michael@0 | 84 | void Cleanup(); |
| michael@0 | 85 | |
| michael@0 | 86 | ThreadSafeAutoRefCnt mRefCnt; |
| michael@0 | 87 | ThreadSafeAutoRefCnt mDBRefCnt; |
| michael@0 | 88 | ThreadSafeAutoRefCnt mSliceRefCnt; |
| michael@0 | 89 | |
| michael@0 | 90 | nsRefPtr<FileManager> mFileManager; |
| michael@0 | 91 | }; |
| michael@0 | 92 | |
| michael@0 | 93 | #define FILEINFO_SUBCLASS(_bits) \ |
| michael@0 | 94 | class FileInfo##_bits : public FileInfo \ |
| michael@0 | 95 | { \ |
| michael@0 | 96 | public: \ |
| michael@0 | 97 | FileInfo##_bits(FileManager* aFileManager, int##_bits##_t aId) \ |
| michael@0 | 98 | : FileInfo(aFileManager), mId(aId) \ |
| michael@0 | 99 | { } \ |
| michael@0 | 100 | \ |
| michael@0 | 101 | virtual int64_t Id() const \ |
| michael@0 | 102 | { \ |
| michael@0 | 103 | return mId; \ |
| michael@0 | 104 | } \ |
| michael@0 | 105 | \ |
| michael@0 | 106 | private: \ |
| michael@0 | 107 | int##_bits##_t mId; \ |
| michael@0 | 108 | }; |
| michael@0 | 109 | |
| michael@0 | 110 | FILEINFO_SUBCLASS(16) |
| michael@0 | 111 | FILEINFO_SUBCLASS(32) |
| michael@0 | 112 | FILEINFO_SUBCLASS(64) |
| michael@0 | 113 | |
| michael@0 | 114 | #undef FILEINFO_SUBCLASS |
| michael@0 | 115 | |
| michael@0 | 116 | END_INDEXEDDB_NAMESPACE |
| michael@0 | 117 | |
| michael@0 | 118 | #endif // mozilla_dom_indexeddb_fileinfo_h__ |
