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      1 /*
      2  * Copyright (C) 2008 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef LocalStorageTask_h
     27 #define LocalStorageTask_h
     28 
     29 #if ENABLE(DOM_STORAGE)
     30 
     31 #include <wtf/PassOwnPtr.h>
     32 #include <wtf/Threading.h>
     33 
     34 namespace WebCore {
     35 
     36     class StorageAreaSync;
     37     class LocalStorageThread;
     38 
     39     // FIXME: Rename this class to StorageTask
     40     class LocalStorageTask : public Noncopyable {
     41     public:
     42         enum Type { AreaImport, AreaSync, TerminateThread };
     43 
     44         ~LocalStorageTask();
     45 
     46         static PassOwnPtr<LocalStorageTask> createImport(StorageAreaSync* area) { return new LocalStorageTask(AreaImport, area); }
     47         static PassOwnPtr<LocalStorageTask> createSync(StorageAreaSync* area) { return new LocalStorageTask(AreaSync, area); }
     48         static PassOwnPtr<LocalStorageTask> createTerminate(LocalStorageThread* thread) { return new LocalStorageTask(TerminateThread, thread); }
     49 
     50         void performTask();
     51 
     52     private:
     53         LocalStorageTask(Type, StorageAreaSync*);
     54         LocalStorageTask(Type, LocalStorageThread*);
     55 
     56         Type m_type;
     57         StorageAreaSync* m_area;
     58         LocalStorageThread* m_thread;
     59     };
     60 
     61 } // namespace WebCore
     62 
     63 #endif // ENABLE(DOM_STORAGE)
     64 
     65 #endif // LocalStorageTask_h
     66