text: //  critical_section.hpp  --------------------------------------------------------------//
  
  //  Copyright 2010 Vicente J. Botet Escriba
  //  Copyright 2015 Andrey Semashev
  
  //  Distributed under the Boost Software License, Version 1.0.
  //  See http://www.boost.org/LICENSE_1_0.txt
  
  
  #ifndef BOOST_DETAIL_WINAPI_CRITICAL_SECTION_HPP
  #define BOOST_DETAIL_WINAPI_CRITICAL_SECTION_HPP
  
  #include <boost/detail/winapi/basic_types.hpp>
  #include <boost/detail/winapi/detail/cast_ptr.hpp>
  
  #ifdef BOOST_HAS_PRAGMA_ONCE
  #pragma once
  #endif
  
  #if !defined( BOOST_USE_WINDOWS_H )
  
  extern "C" {
  #if !defined( BOOST_WINAPI_IS_MINGW )
  struct _RTL_CRITICAL_SECTION;
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  InitializeCriticalSection(::_RTL_CRITICAL_SECTION* lpCriticalSection);
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  EnterCriticalSection(::_RTL_CRITICAL_SECTION* lpCriticalSection);
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  LeaveCriticalSection(::_RTL_CRITICAL_SECTION* lpCriticalSection);
  
  #if BOOST_USE_WINAPI_VERSION >= 0x0403
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  InitializeCriticalSectionAndSpinCount(
      ::_RTL_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount);
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  InitializeCriticalSectionEx(
      ::_RTL_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount,
      boost::detail::winapi::DWORD_ Flags);
  #endif
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::DWORD_ WINAPI
  SetCriticalSectionSpinCount(
      ::_RTL_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount);
  #endif
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_NT4
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  TryEnterCriticalSection(::_RTL_CRITICAL_SECTION* lpCriticalSection);
  #endif
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  DeleteCriticalSection(::_RTL_CRITICAL_SECTION* lpCriticalSection);
  
  #else // defined( BOOST_WINAPI_IS_MINGW )
  
  // MinGW uses a different name for the structure
  struct _CRITICAL_SECTION;
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  InitializeCriticalSection(::_CRITICAL_SECTION* lpCriticalSection);
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  EnterCriticalSection(::_CRITICAL_SECTION* lpCriticalSection);
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  LeaveCriticalSection(::_CRITICAL_SECTION* lpCriticalSection);
  
  #if BOOST_USE_WINAPI_VERSION >= 0x0403
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  InitializeCriticalSectionAndSpinCount(
      ::_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount);
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  InitializeCriticalSectionEx(
      ::_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount,
      boost::detail::winapi::DWORD_ Flags);
  #endif
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::DWORD_ WINAPI
  SetCriticalSectionSpinCount(
      ::_CRITICAL_SECTION* lpCriticalSection,
      boost::detail::winapi::DWORD_ dwSpinCount);
  #endif
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_NT4
  BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI
  TryEnterCriticalSection(::_CRITICAL_SECTION* lpCriticalSection);
  #endif
  
  BOOST_SYMBOL_IMPORT boost::detail::winapi::VOID_ WINAPI
  DeleteCriticalSection(::_CRITICAL_SECTION* lpCriticalSection);
  
  #endif // defined( BOOST_WINAPI_IS_MINGW )
  }
  #endif
  
  namespace boost {
  namespace detail {
  namespace winapi {
  
  struct _RTL_CRITICAL_SECTION_DEBUG;
  
  #pragma pack(push, 8)
  
  typedef struct BOOST_DETAIL_WINAPI_MAY_ALIAS _RTL_CRITICAL_SECTION {
      _RTL_CRITICAL_SECTION_DEBUG* DebugInfo;
      LONG_ LockCount;
      LONG_ RecursionCount;
      HANDLE_ OwningThread;
      HANDLE_ LockSemaphore;
      ULONG_PTR_ SpinCount;
  } CRITICAL_SECTION_, *PCRITICAL_SECTION_;
  
  #pragma pack(pop)
  
  BOOST_FORCEINLINE VOID_ InitializeCriticalSection(CRITICAL_SECTION_* lpCriticalSection)
  {
      ::InitializeCriticalSection(winapi::detail::cast_ptr(lpCriticalSection));
  }
  
  BOOST_FORCEINLINE VOID_ EnterCriticalSection(CRITICAL_SECTION_* lpCriticalSection)
  {
      ::EnterCriticalSection(winapi::detail::cast_ptr(lpCriticalSection));
  }
  
  BOOST_FORCEINLINE VOID_ LeaveCriticalSection(CRITICAL_SECTION_* lpCriticalSection)
  {
      ::LeaveCriticalSection(winapi::detail::cast_ptr(lpCriticalSection));
  }
  
  #if BOOST_USE_WINAPI_VERSION >= 0x0403
  BOOST_FORCEINLINE BOOL_ InitializeCriticalSectionAndSpinCount(CRITICAL_SECTION_* lpCriticalSection, DWORD_ dwSpinCount)
  {
      return ::InitializeCriticalSectionAndSpinCount(winapi::detail::cast_ptr(lpCriticalSection), dwSpinCount);
  }
  
  // CRITICAL_SECTION_NO_DEBUG_INFO is defined for WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
  const DWORD_ CRITICAL_SECTION_NO_DEBUG_INFO_ = 0x01000000;
  const DWORD_ CRITICAL_SECTION_FLAG_NO_DEBUG_INFO_ = CRITICAL_SECTION_NO_DEBUG_INFO_;
  const DWORD_ CRITICAL_SECTION_FLAG_DYNAMIC_SPIN_ = 0x02000000; // undocumented
  const DWORD_ CRITICAL_SECTION_FLAG_STATIC_INIT_ = 0x04000000; // undocumented
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  BOOST_FORCEINLINE BOOL_ InitializeCriticalSectionEx(CRITICAL_SECTION_* lpCriticalSection, DWORD_ dwSpinCount, DWORD_ Flags)
  {
      return ::InitializeCriticalSectionEx(winapi::detail::cast_ptr(lpCriticalSection), dwSpinCount, Flags);
  }
  #endif // BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_WIN6
  
  BOOST_FORCEINLINE DWORD_ SetCriticalSectionSpinCount(CRITICAL_SECTION_* lpCriticalSection, DWORD_ dwSpinCount)
  {
      return ::SetCriticalSectionSpinCount(winapi::detail::cast_ptr(lpCriticalSection), dwSpinCount);
  }
  #endif // BOOST_USE_WINAPI_VERSION >= 0x0403
  
  #if BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_NT4
  BOOST_FORCEINLINE BOOL_ TryEnterCriticalSection(CRITICAL_SECTION_* lpCriticalSection)
  {
      return ::TryEnterCriticalSection(winapi::detail::cast_ptr(lpCriticalSection));
  }
  #endif // BOOST_USE_WINAPI_VERSION >= BOOST_WINAPI_VERSION_NT4
  
  BOOST_FORCEINLINE VOID_ DeleteCriticalSection(CRITICAL_SECTION_* lpCriticalSection)
  {
      ::DeleteCriticalSection(winapi::detail::cast_ptr(lpCriticalSection));
  }
  
  }
  }
  }
  
  #endif // BOOST_DETAIL_WINAPI_CRITICAL_SECTION_HPP
  