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//
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// detail/win_event.ipp
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// ~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP
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#define BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_WINDOWS)
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#include <boost/asio/detail/throw_error.hpp>
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#include <boost/asio/detail/win_event.hpp>
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#include <boost/asio/error.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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win_event::win_event()
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  : state_(0)
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{
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#if defined(BOOST_ASIO_WINDOWS_APP)
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  events_[0] = ::CreateEventExW(0, 0, CREATE_EVENT_MANUAL_RESET, 0);
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#else // defined(BOOST_ASIO_WINDOWS_APP)
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  events_[0] = ::CreateEventW(0, true, false, 0);
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#endif // defined(BOOST_ASIO_WINDOWS_APP)
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  if (!events_[0])
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  {
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    DWORD last_error = ::GetLastError();
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    boost::system::error_code ec(last_error,
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        boost::asio::error::get_system_category());
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    boost::asio::detail::throw_error(ec, "event");
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  }
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#if defined(BOOST_ASIO_WINDOWS_APP)
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  events_[1] = ::CreateEventExW(0, 0, 0, 0);
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#else // defined(BOOST_ASIO_WINDOWS_APP)
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  events_[1] = ::CreateEventW(0, false, false, 0);
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#endif // defined(BOOST_ASIO_WINDOWS_APP)
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  if (!events_[1])
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  {
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    DWORD last_error = ::GetLastError();
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    ::CloseHandle(events_[0]);
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    boost::system::error_code ec(last_error,
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        boost::asio::error::get_system_category());
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    boost::asio::detail::throw_error(ec, "event");
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  }
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}
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win_event::~win_event()
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{
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  ::CloseHandle(events_[0]);
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  ::CloseHandle(events_[1]);
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}
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // defined(BOOST_ASIO_WINDOWS)
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#endif // BOOST_ASIO_DETAIL_IMPL_WIN_EVENT_IPP