diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/chrono/detail/inlined/win/process_cpu_clocks.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/chrono/detail/inlined/win/process_cpu_clocks.hpp | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/chrono/detail/inlined/win/process_cpu_clocks.hpp b/src/third_party/boost-1.60.0/boost/chrono/detail/inlined/win/process_cpu_clocks.hpp new file mode 100644 index 00000000000..e97bfe590c3 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/chrono/detail/inlined/win/process_cpu_clocks.hpp @@ -0,0 +1,281 @@ +// boost process_timer.cpp -----------------------------------------------------------// + +// Copyright Beman Dawes 1994, 2006, 2008 +// Copyright 2009-2010 Vicente J. Botet Escriba +// Copyright (c) Microsoft Corporation 2014 + +// 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_PROCESS_CLOCK_HPP +#define BOOST_CHRONO_DETAIL_INLINED_WIN_PROCESS_CLOCK_HPP + +#include <boost/chrono/config.hpp> +//#include <boost/chrono/system_clocks.hpp> +#include <boost/chrono/process_cpu_clocks.hpp> +#include <cassert> +#include <time.h> + +#include <boost/detail/winapi/GetLastError.hpp> +#include <boost/detail/winapi/GetCurrentProcess.hpp> +#if BOOST_PLAT_WINDOWS_DESKTOP +#include <boost/detail/winapi/GetProcessTimes.hpp> +#endif + +namespace boost +{ +namespace chrono +{ + +process_real_cpu_clock::time_point process_real_cpu_clock::now() BOOST_NOEXCEPT +{ + clock_t c = ::clock(); + if ( c == clock_t(-1) ) // error + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + } + typedef ratio_divide<giga, ratio<CLOCKS_PER_SEC> >::type R; + return time_point( + duration(static_cast<rep>(c)*R::num/R::den) + ); +} + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING +process_real_cpu_clock::time_point process_real_cpu_clock::now( + system::error_code & ec) +{ + clock_t c = ::clock(); + if ( c == clock_t(-1) ) // error + { + boost::throw_exception( + system::system_error( + errno, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::process_real_cpu_clock" )); + } + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + typedef ratio_divide<giga, ratio<CLOCKS_PER_SEC> >::type R; + return time_point( + duration(static_cast<rep>(c)*R::num/R::den) + ); +} +#endif + +#if BOOST_PLAT_WINDOWS_DESKTOP +process_user_cpu_clock::time_point process_user_cpu_clock::now() BOOST_NOEXCEPT +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + return time_point(duration( + ((static_cast<process_user_cpu_clock::rep>(user_time.dwHighDateTime) << 32) + | user_time.dwLowDateTime) * 100 + )); + } + else + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + return time_point(); + } + +} + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING +process_user_cpu_clock::time_point process_user_cpu_clock::now( + system::error_code & ec) +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + return time_point(duration( + ((static_cast<process_user_cpu_clock::rep>(user_time.dwHighDateTime) << 32) + | user_time.dwLowDateTime) * 100 + )); + } + else + { + boost::detail::winapi::DWORD_ cause = boost::detail::winapi::GetLastError(); + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + cause, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::process_user_cpu_clock" )); + } + else + { + ec.assign( cause, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + +} +#endif + +process_system_cpu_clock::time_point process_system_cpu_clock::now() BOOST_NOEXCEPT +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + return time_point(duration( + ((static_cast<process_system_cpu_clock::rep>(system_time.dwHighDateTime) << 32) + | system_time.dwLowDateTime) * 100 + )); + } + else + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + return time_point(); + } + +} + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING +process_system_cpu_clock::time_point process_system_cpu_clock::now( + system::error_code & ec) +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + return time_point(duration( + ((static_cast<process_system_cpu_clock::rep>(system_time.dwHighDateTime) << 32) + | system_time.dwLowDateTime) * 100 + )); + } + else + { + boost::detail::winapi::DWORD_ cause = boost::detail::winapi::GetLastError(); + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + cause, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::process_system_cpu_clock" )); + } + else + { + ec.assign( cause, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + +} +#endif + +process_cpu_clock::time_point process_cpu_clock::now() BOOST_NOEXCEPT +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + time_point::rep r(process_real_cpu_clock::now().time_since_epoch().count() + , + ((static_cast<process_user_cpu_clock::rep>(user_time.dwHighDateTime) << 32) + | user_time.dwLowDateTime + ) * 100, + ((static_cast<process_system_cpu_clock::rep>(system_time.dwHighDateTime) << 32) + | system_time.dwLowDateTime + ) * 100 + ); + return time_point(duration(r)); + } + else + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + return time_point(); + } + +} + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING +process_cpu_clock::time_point process_cpu_clock::now( + system::error_code & ec ) +{ + + // note that Windows uses 100 nanosecond ticks for FILETIME + boost::detail::winapi::FILETIME_ creation, exit, user_time, system_time; + + if ( boost::detail::winapi::GetProcessTimes( + boost::detail::winapi::GetCurrentProcess(), &creation, &exit, + &system_time, &user_time ) ) + { + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + time_point::rep r(process_real_cpu_clock::now().time_since_epoch().count() + , + ((static_cast<process_user_cpu_clock::rep>(user_time.dwHighDateTime) << 32) + | user_time.dwLowDateTime + ) * 100, + ((static_cast<process_system_cpu_clock::rep>(system_time.dwHighDateTime) << 32) + | system_time.dwLowDateTime + ) * 100 + ); + return time_point(duration(r)); + } + else + { + boost::detail::winapi::DWORD_ cause = boost::detail::winapi::GetLastError(); + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + cause, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::process_cpu_clock" )); + } + else + { + ec.assign( cause, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + +} +#endif +#endif +} // namespace chrono +} // namespace boost + +#endif |