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|   1 /* |  | 
|   2  * Copyright (C) 2009 Google Inc. All rights reserved. |  | 
|   3  * |  | 
|   4  * Redistribution and use in source and binary forms, with or without |  | 
|   5  * modification, are permitted provided that the following conditions are |  | 
|   6  * met: |  | 
|   7  * |  | 
|   8  *     * Redistributions of source code must retain the above copyright |  | 
|   9  * notice, this list of conditions and the following disclaimer. |  | 
|  10  *     * Redistributions in binary form must reproduce the above |  | 
|  11  * copyright notice, this list of conditions and the following disclaimer |  | 
|  12  * in the documentation and/or other materials provided with the |  | 
|  13  * distribution. |  | 
|  14  *     * Neither the name of Google Inc. nor the names of its |  | 
|  15  * contributors may be used to endorse or promote products derived from |  | 
|  16  * this software without specific prior written permission. |  | 
|  17  * |  | 
|  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |  | 
|  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |  | 
|  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |  | 
|  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |  | 
|  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |  | 
|  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |  | 
|  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |  | 
|  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |  | 
|  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |  | 
|  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |  | 
|  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |  | 
|  29  */ |  | 
|  30  |  | 
|  31 #ifndef QuotaTracker_h |  | 
|  32 #define QuotaTracker_h |  | 
|  33  |  | 
|  34 #include "weborigin/SecurityOrigin.h" |  | 
|  35 #include "wtf/HashMap.h" |  | 
|  36 #include "wtf/text/StringHash.h" |  | 
|  37 #include "wtf/text/WTFString.h" |  | 
|  38  |  | 
|  39 namespace WebCore { |  | 
|  40  |  | 
|  41 class QuotaTracker { |  | 
|  42 public: |  | 
|  43     static QuotaTracker& instance(); |  | 
|  44  |  | 
|  45     void getDatabaseSizeAndSpaceAvailableToOrigin( |  | 
|  46         const String& originIdentifier, const String& databaseName, |  | 
|  47         unsigned long long* databaseSize, unsigned long long* spaceAvailable); |  | 
|  48     void updateDatabaseSize( |  | 
|  49         const String& originIdentifier, const String& databaseName, |  | 
|  50         unsigned long long databaseSize); |  | 
|  51     void updateSpaceAvailableToOrigin(const String& originIdentifier, unsigned l
    ong long spaceAvailable); |  | 
|  52     void resetSpaceAvailableToOrigin(const String& originIdentifier); |  | 
|  53  |  | 
|  54 private: |  | 
|  55     QuotaTracker() { } |  | 
|  56  |  | 
|  57     typedef HashMap<String, unsigned long long> SizeMap; |  | 
|  58     SizeMap m_spaceAvailableToOrigins; |  | 
|  59     HashMap<String, SizeMap> m_databaseSizes; |  | 
|  60     Mutex m_dataGuard; |  | 
|  61 }; |  | 
|  62  |  | 
|  63 } |  | 
|  64  |  | 
|  65 #endif // QuotaTracker_h |  | 
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