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