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