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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 StaticDOMDataStore_h
     32 #define StaticDOMDataStore_h
     33 
     34 #include "DOMDataStore.h"
     35 #include "IntrusiveDOMWrapperMap.h"
     36 
     37 namespace WebCore {
     38 
     39 // StaticDOMDataStore
     40 //
     41 // StaticDOMDataStore is a DOMDataStore that manages the lifetime of the store
     42 // statically.  This encapsulates thread-specific DOM data for the main
     43 // thread.  All the maps in it are static.  This is because we are unable to
     44 // rely on WTF::ThreadSpecificThreadExit to do the cleanup since the place that
     45 // tears down the main thread can not call any WTF functions.
     46 //
     47 class StaticDOMDataStore : public DOMDataStore {
     48 public:
     49     StaticDOMDataStore(DOMData*);
     50 
     51 private:
     52     IntrusiveDOMWrapperMap m_staticDomNodeMap;
     53     DOMWrapperMap<void> m_staticDomObjectMap;
     54     DOMWrapperMap<void> m_staticActiveDomObjectMap;
     55 #if ENABLE(SVG)
     56     DOMWrapperMap<SVGElementInstance> m_staticDomSvgElementInstanceMap;
     57 #endif
     58 };
     59 
     60 } // namespace WebCore
     61 
     62 #endif // StaticDOMDataStore_h
     63 
     64