Added thirdparty: boost library

2026-08-15 11:48:09 +00:00 · 2024-01-06 19:55:56 +02:00
parent bf49f439e1
commit bccd1e7051
15683 changed files with 3239840 additions and 0 deletions
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+//  boost thread_clock.cpp  -----------------------------------------------------------//
+
+//  Copyright 2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  See http://www.boost.org/libs/chrono for documentation.
+
+//--------------------------------------------------------------------------------------//
+#ifndef BOOST_CHRONO_DETAIL_INLINED_WIN_THREAD_CLOCK_HPP
+#define BOOST_CHRONO_DETAIL_INLINED_WIN_THREAD_CLOCK_HPP
+
+#include <boost/chrono/config.hpp>
+#include <boost/chrono/thread_clock.hpp>
+#include <cassert>
+#include <boost/assert.hpp>
+
+#include <boost/winapi/get_last_error.hpp>
+#include <boost/winapi/get_current_thread.hpp>
+#include <boost/winapi/get_thread_times.hpp>
+
+namespace boost
+{
+namespace chrono
+{
+
+#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
+thread_clock::time_point thread_clock::now( system::error_code & ec )
+{
+    //  note that Windows uses 100 nanosecond ticks for FILETIME
+    boost::winapi::FILETIME_ creation, exit, user_time, system_time;
+
+    if ( boost::winapi::GetThreadTimes(
+            boost::winapi::GetCurrentThread (), &creation, &exit,
+            &system_time, &user_time ) )
+    {
+        duration user = duration(
+                ((static_cast<duration::rep>(user_time.dwHighDateTime) << 32)
+                        | user_time.dwLowDateTime) * 100 );
+
+        duration system = duration(
+                ((static_cast<duration::rep>(system_time.dwHighDateTime) << 32)
+                        | system_time.dwLowDateTime) * 100 );
+
+        if (!::boost::chrono::is_throws(ec))
+        {
+            ec.clear();
+        }
+        return time_point(system+user);
+
+    }
+    else
+    {
+        if (::boost::chrono::is_throws(ec))
+        {
+            boost::throw_exception(
+                    system::system_error(
+                            boost::winapi::GetLastError(),
+                            ::boost::system::system_category(),
+                            "chrono::thread_clock" ));
+        }
+        else
+        {
+            ec.assign( boost::winapi::GetLastError(), ::boost::system::system_category() );
+            return thread_clock::time_point(duration(0));
+        }
+    }
+}
+#endif
+
+thread_clock::time_point thread_clock::now() BOOST_NOEXCEPT
+{
+
+    //  note that Windows uses 100 nanosecond ticks for FILETIME
+    boost::winapi::FILETIME_ creation, exit, user_time, system_time;
+
+    if ( boost::winapi::GetThreadTimes(
+            boost::winapi::GetCurrentThread (), &creation, &exit,
+            &system_time, &user_time ) )
+    {
+        duration user   = duration(
+                ((static_cast<duration::rep>(user_time.dwHighDateTime) << 32)
+                        | user_time.dwLowDateTime) * 100 );
+
+        duration system = duration(
+                ((static_cast<duration::rep>(system_time.dwHighDateTime) << 32)
+                        | system_time.dwLowDateTime) * 100 );
+
+        return time_point(system+user);
+    }
+    else
+    {
+      BOOST_ASSERT(0 && "Boost::Chrono - Internal Error");
+      return time_point();
+    }
+
+}
+
+} // namespace chrono
+} // namespace boost
+
+#endif