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3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
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8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
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14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Mozilla Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 2006
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Honza Bambas <honzab@firemni.cz>
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
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38 :
39 : #ifndef nsDOMStorageBaseDB_h___
40 : #define nsDOMStorageBaseDB_h___
41 :
42 : #include "nscore.h"
43 : #include "nsDataHashtable.h"
44 :
45 : class DOMStorageImpl;
46 :
47 : class nsDOMStorageBaseDB
48 : {
49 : public:
50 : nsDOMStorageBaseDB();
51 616 : virtual ~nsDOMStorageBaseDB() {}
52 :
53 : /**
54 : * Marks the storage as "cached" after the DOMStorageImpl object has loaded
55 : * all items to its memory copy of the entries - IsScopeDirty returns false
56 : * after call of this method for this storage.
57 : *
58 : * When a key is changed or deleted in the storage, the storage scope is
59 : * marked as "dirty" again and makes the DOMStorageImpl object recache its
60 : * keys on next access, because IsScopeDirty returns true again.
61 : */
62 : void MarkScopeCached(DOMStorageImpl* aStorage);
63 :
64 : /**
65 : * Test whether the storage for the scope (i.e. origin or host) has been
66 : * changed since the last MarkScopeCached call.
67 : */
68 : bool IsScopeDirty(DOMStorageImpl* aStorage);
69 :
70 : protected:
71 : nsDataHashtable<nsCStringHashKey, PRUint64> mScopesVersion;
72 :
73 : static PRUint64 NextGlobalVersion();
74 : PRUint64 CachedScopeVersion(DOMStorageImpl* aStorage);
75 :
76 : void MarkScopeDirty(DOMStorageImpl* aStorage);
77 : void MarkAllScopesDirty();
78 :
79 : private:
80 : static PRUint64 sGlobalVersion;
81 : };
82 :
83 : #endif /* nsDOMStorageDB_h___ */
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