text: /*
   * Copyright (C) 2008 Apple Inc. All Rights Reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #ifndef WTFThreadData_h
  #define WTFThreadData_h
  
  #include "wtf/HashMap.h"
  #include "wtf/HashSet.h"
  #include "wtf/Noncopyable.h"
  #include "wtf/ThreadSpecific.h"
  #include "wtf/Threading.h"
  #include "wtf/WTFExport.h"
  #include "wtf/text/StringHash.h"
  #include <memory>
  
  namespace WTF {
  
  class AtomicStringTable;
  struct ICUConverterWrapper;
  
  class WTF_EXPORT WTFThreadData {
    DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
    WTF_MAKE_NONCOPYABLE(WTFThreadData);
  
   public:
    WTFThreadData();
    ~WTFThreadData();
  
    AtomicStringTable& getAtomicStringTable() { return *m_atomicStringTable; }
  
    ICUConverterWrapper& cachedConverterICU() { return *m_cachedConverterICU; }
  
    ThreadIdentifier threadId() const { return m_threadId; }
  
  #if OS(WIN) && COMPILER(MSVC)
    static size_t threadStackSize();
  #endif
  
   private:
    std::unique_ptr<AtomicStringTable> m_atomicStringTable;
    std::unique_ptr<ICUConverterWrapper> m_cachedConverterICU;
  
    ThreadIdentifier m_threadId;
  
  #if OS(WIN) && COMPILER(MSVC)
    size_t m_threadStackSize = 0u;
  #endif
  
    static ThreadSpecific<WTFThreadData>* staticData;
    friend WTFThreadData& wtfThreadData();
  };
  
  inline WTFThreadData& wtfThreadData() {
    // WTFThreadData is used on main thread before it could possibly be used
    // on secondary ones, so there is no need for synchronization here.
    if (!WTFThreadData::staticData)
      WTFThreadData::staticData = new ThreadSpecific<WTFThreadData>;
    return **WTFThreadData::staticData;
  }
  
  }  // namespace WTF
  
  using WTF::WTFThreadData;
  using WTF::wtfThreadData;
  
  #endif  // WTFThreadData_h
  