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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 LocalStorageThread_h
     27 #define LocalStorageThread_h
     28 
     29 #if ENABLE(DOM_STORAGE)
     30 
     31 #include <wtf/HashSet.h>
     32 #include <wtf/MessageQueue.h>
     33 #include <wtf/PassOwnPtr.h>
     34 #include <wtf/PassRefPtr.h>
     35 #include <wtf/Threading.h>
     36 
     37 namespace WebCore {
     38 
     39     class StorageAreaSync;
     40     class LocalStorageTask;
     41 
     42     // FIXME: Rename this class to StorageThread
     43     class LocalStorageThread {
     44         WTF_MAKE_NONCOPYABLE(LocalStorageThread); WTF_MAKE_FAST_ALLOCATED;
     45     public:
     46         static PassOwnPtr<LocalStorageThread> create();
     47         ~LocalStorageThread();
     48 
     49         bool start();
     50         void terminate();
     51         void scheduleTask(PassOwnPtr<LocalStorageTask>);
     52 
     53         // Background thread part of the terminate procedure.
     54         void performTerminate();
     55 
     56     private:
     57         LocalStorageThread();
     58 
     59         // Called on background thread.
     60         static void* threadEntryPointCallback(void*);
     61         void* threadEntryPoint();
     62 
     63         ThreadIdentifier m_threadID;
     64         MessageQueue<LocalStorageTask> m_queue;
     65     };
     66 
     67 } // namespace WebCore
     68 
     69 #endif // ENABLE(DOM_STORAGE)
     70 
     71 #endif // LocalStorageThread_h
     72