You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
102 lines
3.1 KiB
102 lines
3.1 KiB
// 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/detail/win/GetLastError.hpp> |
|
#include <boost/detail/win/GetCurrentThread.hpp> |
|
#include <boost/detail/win/GetThreadTimes.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::detail::win32::FILETIME_ creation, exit, user_time, system_time; |
|
|
|
if ( boost::detail::win32::GetThreadTimes( |
|
boost::detail::win32::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::detail::win32::GetLastError(), |
|
BOOST_CHRONO_SYSTEM_CATEGORY, |
|
"chrono::thread_clock" )); |
|
} |
|
else |
|
{ |
|
ec.assign( boost::detail::win32::GetLastError(), BOOST_CHRONO_SYSTEM_CATEGORY ); |
|
return thread_clock::time_point(duration(0)); |
|
} |
|
} |
|
} |
|
#endif |
|
|
|
thread_clock::time_point thread_clock::now() BOOST_CHRONO_NOEXCEPT |
|
{ |
|
|
|
// note that Windows uses 100 nanosecond ticks for FILETIME |
|
boost::detail::win32::FILETIME_ creation, exit, user_time, system_time; |
|
|
|
if ( boost::detail::win32::GetThreadTimes( |
|
boost::detail::win32::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
|
|
|