New upstream version 8.1.0

thirdparty/source/boost_1_61_0/boost/thread/v2/thread.hpp

@@ -0,0 +1,155 @@
+// 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)
+// (C) Copyright 2011 Vicente J. Botet Escriba
+
+#ifndef BOOST_THREAD_V2_THREAD_HPP
+#define BOOST_THREAD_V2_THREAD_HPP
+
+#include <boost/thread/detail/config.hpp>
+#ifdef BOOST_THREAD_USES_CHRONO
+#include <boost/chrono/system_clocks.hpp>
+#include <boost/chrono/ceil.hpp>
+#endif
+#include <boost/thread/condition_variable.hpp>
+#include <boost/thread/lock_types.hpp>
+
+namespace boost
+{
+  namespace this_thread
+  {
+    namespace no_interruption_point
+    {
+#ifdef BOOST_THREAD_USES_CHRONO
+
+    template <class Clock, class Duration>
+    void sleep_until(const chrono::time_point<Clock, Duration>& t)
+    {
+      using namespace chrono;
+      mutex mut;
+      condition_variable cv;
+      unique_lock<mutex> lk(mut);
+      while (Clock::now() < t)
+        cv.wait_until(lk, t);
+    }
+
+#ifdef BOOST_THREAD_SLEEP_FOR_IS_STEADY
+
+    template <class Rep, class Period>
+    void sleep_for(const chrono::duration<Rep, Period>& d)
+    {
+      using namespace chrono;
+      if (d > duration<Rep, Period>::zero())
+      {
+          duration<long double> Max = nanoseconds::max BOOST_PREVENT_MACRO_SUBSTITUTION ();
+          nanoseconds ns;
+          if (d < Max)
+          {
+              ns = duration_cast<nanoseconds>(d);
+              if (ns < d)
+                  ++ns;
+          }
+          else
+              ns = nanoseconds:: max BOOST_PREVENT_MACRO_SUBSTITUTION ();
+          sleep_for(ns);
+      }
+    }
+
+    template <class Duration>
+    inline BOOST_SYMBOL_VISIBLE
+    void sleep_until(const chrono::time_point<chrono::steady_clock, Duration>& t)
+    {
+      using namespace chrono;
+      sleep_for(t - steady_clock::now());
+    }
+#else
+    template <class Rep, class Period>
+    void sleep_for(const chrono::duration<Rep, Period>& d)
+    {
+      using namespace chrono;
+      if (d > duration<Rep, Period>::zero())
+      {
+        steady_clock::time_point c_timeout = steady_clock::now() + ceil<nanoseconds>(d);
+        sleep_until(c_timeout);
+      }
+    }
+
+#endif
+
+#endif
+    }
+#ifdef BOOST_THREAD_USES_CHRONO
+
+    template <class Clock, class Duration>
+    void sleep_until(const chrono::time_point<Clock, Duration>& t)
+    {
+      using namespace chrono;
+      mutex mut;
+      condition_variable cv;
+      unique_lock<mutex> lk(mut);
+      while (Clock::now() < t)
+        cv.wait_until(lk, t);
+    }
+
+#if defined BOOST_THREAD_HAS_CONDATTR_SET_CLOCK_MONOTONIC && defined BOOST_CHRONO_HAS_CLOCK_STEADY
+    template <class Rep, class Period>
+    void sleep_for(const chrono::duration<Rep, Period>& d)
+    {
+      using namespace chrono;
+      if (d > duration<Rep, Period>::zero())
+      {
+        steady_clock::time_point c_timeout = steady_clock::now() + ceil<nanoseconds>(d);
+        sleep_until(c_timeout);
+      }
+    }
+
+#elif defined BOOST_THREAD_SLEEP_FOR_IS_STEADY
+
+    template <class Rep, class Period>
+    void sleep_for(const chrono::duration<Rep, Period>& d)
+    {
+      using namespace chrono;
+      if (d > duration<Rep, Period>::zero())
+      {
+          duration<long double> Max = nanoseconds::max BOOST_PREVENT_MACRO_SUBSTITUTION ();
+          nanoseconds ns;
+          if (d < Max)
+          {
+              ns = duration_cast<nanoseconds>(d);
+              if (ns < d)
+                  ++ns;
+          }
+          else
+              ns = nanoseconds:: max BOOST_PREVENT_MACRO_SUBSTITUTION ();
+          sleep_for(ns);
+      }
+    }
+
+    template <class Duration>
+    inline BOOST_SYMBOL_VISIBLE
+    void sleep_until(const chrono::time_point<chrono::steady_clock, Duration>& t)
+    {
+      using namespace chrono;
+      sleep_for(t - steady_clock::now());
+    }
+#else
+    template <class Rep, class Period>
+    void sleep_for(const chrono::duration<Rep, Period>& d)
+    {
+      using namespace chrono;
+      if (d > duration<Rep, Period>::zero())
+      {
+        //system_clock::time_point c_timeout = time_point_cast<system_clock::duration>(system_clock::now() + ceil<nanoseconds>(d));
+        system_clock::time_point c_timeout = system_clock::now() + ceil<system_clock::duration>(d);
+        sleep_until(c_timeout);
+      }
+    }
+
+#endif
+
+#endif
+  }
+}
+
+
+#endif