Chris@16: //
Chris@16: // detail/impl/win_mutex.ipp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
Chris@16: #define BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_WINDOWS)
Chris@16: 
Chris@16: #include <boost/asio/detail/throw_error.hpp>
Chris@16: #include <boost/asio/detail/win_mutex.hpp>
Chris@16: #include <boost/asio/error.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: win_mutex::win_mutex()
Chris@16: {
Chris@16:   int error = do_init();
Chris@16:   boost::system::error_code ec(error,
Chris@16:       boost::asio::error::get_system_category());
Chris@16:   boost::asio::detail::throw_error(ec, "mutex");
Chris@16: }
Chris@16: 
Chris@16: int win_mutex::do_init()
Chris@16: {
Chris@16: #if defined(__MINGW32__)
Chris@16:   // Not sure if MinGW supports structured exception handling, so for now
Chris@16:   // we'll just call the Windows API and hope.
Chris@16: # if defined(UNDER_CE)
Chris@16:   ::InitializeCriticalSection(&crit_section_);
Chris@16: # else
Chris@16:   if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
Chris@16:     return ::GetLastError();
Chris@16: # endif
Chris@16:   return 0;
Chris@16: #else
Chris@16:   __try
Chris@16:   {
Chris@16: # if defined(UNDER_CE)
Chris@16:     ::InitializeCriticalSection(&crit_section_);
Chris@16: # else
Chris@16:     if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
Chris@16:       return ::GetLastError();
Chris@16: # endif
Chris@16:   }
Chris@16:   __except(GetExceptionCode() == STATUS_NO_MEMORY
Chris@16:       ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
Chris@16:   {
Chris@16:     return ERROR_OUTOFMEMORY;
Chris@16:   }
Chris@16: 
Chris@16:   return 0;
Chris@16: #endif
Chris@16: }
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_WINDOWS)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_IMPL_WIN_MUTEX_IPP