text: ///////////////////////////////////////////////////////////////////////////
  //
  // Copyright (c) 2005-2012, Industrial Light & Magic, a division of Lucas
  // Digital Ltd. LLC
  // 
  // All rights reserved.
  // 
  // Redistribution and use in source and binary forms, with or without
  // modification, are permitted provided that the following conditions are
  // met:
  // *       Redistributions of source code must retain the above copyright
  // notice, this list of conditions and the following disclaimer.
  // *       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.
  // *       Neither the name of Industrial Light & Magic nor the names of
  // its contributors may be used to endorse or promote products derived
  // from this software without specific prior written permission. 
  // 
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  // "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 THE COPYRIGHT
  // OWNER 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.
  //
  ///////////////////////////////////////////////////////////////////////////
  
  //-----------------------------------------------------------------------------
  //
  //	class Mutex -- implementation for Windows
  //
  //-----------------------------------------------------------------------------
  
  #include "IlmThreadMutex.h"
  #include "Iex.h"
  
  ILMTHREAD_INTERNAL_NAMESPACE_SOURCE_ENTER
  
  
  Mutex::Mutex ()
  {
      // According to MSDN, the heap uses a spin count of 4000
      ::InitializeCriticalSectionAndSpinCount (&_mutex, 4000);
  }
  
  
  Mutex::~Mutex ()
  {
      ::DeleteCriticalSection (&_mutex);
  }
  
  
  void
  Mutex::lock () const
  {
      ::EnterCriticalSection (&_mutex);
  }
  
  
  void
  Mutex::unlock () const
  {
      ::LeaveCriticalSection (&_mutex);
  }
  
  
  ILMTHREAD_INTERNAL_NAMESPACE_SOURCE_EXIT
  