ceph/src/boost/boost/asio/detail/impl/null_event.ipp

   1 //
   2 // detail/impl/null_event.ipp
   3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP
  12 #define BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19
  20 #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
  21 # include <thread>
  22 #elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
  23 # include <boost/asio/detail/socket_types.hpp>
  24 #else
  25 # include <unistd.h>
  26 # if defined(__hpux)
  27 #  include <sys/time.h>
  28 # endif
  29 # if !defined(__hpux) || defined(__SELECT)
  30 #  include <sys/select.h>
  31 # endif
  32 #endif
  33
  34 #include <boost/asio/detail/push_options.hpp>
  35
  36 namespace boost {
  37 namespace asio {
  38 namespace detail {
  39
  40 void null_event::do_wait()
  41 {
  42 #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
  43   std::this_thread::sleep_until((std::chrono::steady_clock::time_point::max)());
  44 #elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
  45   ::Sleep(INFINITE);
  46 #else
  47   ::pause();
  48 #endif
  49 }
  50
  51 void null_event::do_wait_for_usec(long usec)
  52 {
  53 #if defined(BOOST_ASIO_WINDOWS_RUNTIME)
  54   std::this_thread::sleep_for(std::chrono::microseconds(usec));
  55 #elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
  56   ::Sleep(usec / 1000);
  57 #elif defined(__hpux) && defined(__SELECT)
  58   timespec ts;
  59   ts.tv_sec = usec / 1000000;
  60   ts.tv_nsec = (usec % 1000000) * 1000;
  61   ::pselect(0, 0, 0, 0, &ts, 0);
  62 #else
  63   timeval tv;
  64   tv.tv_sec = usec / 1000000;
  65   tv.tv_usec = usec % 1000000;
  66   ::select(0, 0, 0, 0, &tv);
  67 #endif
  68 }
  69
  70 } // namespace detail
  71 } // namespace asio
  72 } // namespace boost
  73
  74 #include <boost/asio/detail/pop_options.hpp>
  75
  76 #endif // BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP