Imported Upstream version 1.66.0upstream/1.66.0

1 files changed, 76 insertions, 0 deletions

diff --git a/boost/asio/detail/impl/null_event.ipp b/boost/asio/detail/impl/null_event.ipp
new file mode 100644
index 0000000000..fb9f2e2ed2
--- /dev/null
+++ b/boost/asio/detail/impl/null_event.ipp
@@ -0,0 +1,76 @@
+//
+// detail/impl/null_event.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2017 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 BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP
+#define BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+
+#if defined(BOOST_ASIO_WINDOWS_RUNTIME)
+# include <thread>
+#elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
+# include <boost/asio/detail/socket_types.hpp>
+#else
+# include <unistd.h>
+# if defined(__hpux)
+#  include <sys/time.h>
+# endif
+# if !defined(__hpux) || defined(__SELECT)
+#  include <sys/select.h>
+# endif
+#endif
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+void null_event::do_wait()
+{
+#if defined(BOOST_ASIO_WINDOWS_RUNTIME)
+  std::this_thread::sleep_until((std::chrono::steady_clock::time_point::max)());
+#elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
+  ::Sleep(INFINITE);
+#else
+  ::pause();
+#endif
+}
+
+void null_event::do_wait_for_usec(long usec)
+{
+#if defined(BOOST_ASIO_WINDOWS_RUNTIME)
+  std::this_thread::sleep_for(std::chrono::microseconds(usec));
+#elif defined(BOOST_ASIO_WINDOWS) || defined(__CYGWIN__)
+  ::Sleep(usec / 1000);
+#elif defined(__hpux) && defined(__SELECT)
+  timespec ts;
+  ts.tv_sec = usec / 1000000;
+  ts.tv_nsec = (usec % 1000000) * 1000;
+  ::pselect(0, 0, 0, 0, &ts, 0);
+#else
+  timeval tv;
+  tv.tv_sec = usec / 1000000;
+  tv.tv_usec = usec % 1000000;
+  ::select(0, 0, 0, 0, &tv);
+#endif
+}
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_DETAIL_IMPL_NULL_EVENT_IPP