75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
//
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// detail/impl/null_event.ipp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2023 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 ASIO_DETAIL_IMPL_NULL_EVENT_IPP
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#define ASIO_DETAIL_IMPL_NULL_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 "asio/detail/config.hpp"
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#if defined(ASIO_WINDOWS_RUNTIME)
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# include <thread>
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#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
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# include "asio/detail/socket_types.hpp"
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#else
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# include <unistd.h>
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# if defined(__hpux)
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# include <sys/time.h>
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# endif
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# if !defined(__hpux) || defined(__SELECT)
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# include <sys/select.h>
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# endif
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#endif
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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void null_event::do_wait()
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{
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#if defined(ASIO_WINDOWS_RUNTIME)
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std::this_thread::sleep_until((std::chrono::steady_clock::time_point::max)());
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#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
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::Sleep(INFINITE);
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#else
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::pause();
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#endif
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}
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void null_event::do_wait_for_usec(long usec)
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{
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#if defined(ASIO_WINDOWS_RUNTIME)
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std::this_thread::sleep_for(std::chrono::microseconds(usec));
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#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
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::Sleep(usec / 1000);
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#elif defined(__hpux) && defined(__SELECT)
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timespec ts;
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ts.tv_sec = usec / 1000000;
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ts.tv_nsec = (usec % 1000000) * 1000;
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::pselect(0, 0, 0, 0, &ts, 0);
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#else
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timeval tv;
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tv.tv_sec = usec / 1000000;
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tv.tv_usec = usec % 1000000;
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::select(0, 0, 0, 0, &tv);
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#endif
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}
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_DETAIL_IMPL_NULL_EVENT_IPP
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