detail/impl/posix_event.ipp

0001 //
0002 // detail/impl/posix_event.ipp
0003 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
0012 #define BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/config.hpp>
0019
0020 #if defined(BOOST_ASIO_HAS_PTHREADS)
0021
0022 #include <boost/asio/detail/posix_event.hpp>
0023 #include <boost/asio/detail/throw_error.hpp>
0024 #include <boost/asio/error.hpp>
0025
0026 #include <boost/asio/detail/push_options.hpp>
0027
0028 namespace boost {
0029 namespace asio {
0030 namespace detail {
0031
0032 posix_event::posix_event()
0033   : state_(0)
0034 {
0035 #if (defined(__MACH__) && defined(__APPLE__)) \
0036       || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
0037   int error = ::pthread_cond_init(&cond_, 0);
0038 #else // (defined(__MACH__) && defined(__APPLE__))
0039       // || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
0040   ::pthread_condattr_t attr;
0041   int error = ::pthread_condattr_init(&attr);
0042   if (error == 0)
0043   {
0044     error = ::pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
0045     if (error == 0)
0046       error = ::pthread_cond_init(&cond_, &attr);
0047     ::pthread_condattr_destroy(&attr);
0048   }
0049 #endif // (defined(__MACH__) && defined(__APPLE__))
0050        // || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
0051
0052   boost::system::error_code ec(error,
0053       boost::asio::error::get_system_category());
0054   boost::asio::detail::throw_error(ec, "event");
0055 }
0056
0057 } // namespace detail
0058 } // namespace asio
0059 } // namespace boost
0060
0061 #include <boost/asio/detail/pop_options.hpp>
0062
0063 #endif // defined(BOOST_ASIO_HAS_PTHREADS)
0064
0065 #endif // BOOST_ASIO_DETAIL_IMPL_POSIX_EVENT_IPP