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Diffstat (limited to '3rdParty/Boost/src/boost/chrono/detail/inlined/posix')
| -rw-r--r-- | 3rdParty/Boost/src/boost/chrono/detail/inlined/posix/chrono.hpp | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/chrono/detail/inlined/posix/chrono.hpp b/3rdParty/Boost/src/boost/chrono/detail/inlined/posix/chrono.hpp new file mode 100644 index 0000000..e35a7ce --- /dev/null +++ b/3rdParty/Boost/src/boost/chrono/detail/inlined/posix/chrono.hpp @@ -0,0 +1,120 @@ +// posix/chrono.cpp --------------------------------------------------------------// + +// Copyright Beman Dawes 2008 +// Copyright Vicente J. Botet Escriba 2009 + +// Distributed under the Boost Software License, Version 1.0. +// See http://www.boost.org/LICENSE_1_0.txt + +//----------------------------------------------------------------------------// +// POSIX // +//----------------------------------------------------------------------------// + +#include <time.h> // for clock_gettime + +namespace boost +{ +namespace chrono +{ + + system_clock::time_point system_clock::now() BOOST_NOEXCEPT + { + timespec ts; + if ( ::clock_gettime( CLOCK_REALTIME, &ts ) ) + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + } + + return time_point(duration( + static_cast<system_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); + } + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING + system_clock::time_point system_clock::now(system::error_code & ec) + { + timespec ts; + if ( ::clock_gettime( CLOCK_REALTIME, &ts ) ) + { + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + errno, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::system_clock" )); + } + else + { + ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + return time_point(duration( + static_cast<system_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); + } +#endif + + std::time_t system_clock::to_time_t(const system_clock::time_point& t) BOOST_NOEXCEPT + { + return static_cast<std::time_t>( t.time_since_epoch().count() / 1000000000 ); + } + + system_clock::time_point system_clock::from_time_t(std::time_t t) BOOST_NOEXCEPT + { + return time_point(duration(static_cast<system_clock::rep>(t) * 1000000000)); + } + +#ifdef BOOST_CHRONO_HAS_CLOCK_STEADY + + steady_clock::time_point steady_clock::now() BOOST_NOEXCEPT + { + timespec ts; + if ( ::clock_gettime( CLOCK_MONOTONIC, &ts ) ) + { + BOOST_ASSERT(0 && "Boost::Chrono - Internal Error"); + } + + return time_point(duration( + static_cast<steady_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); + } + +#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING + steady_clock::time_point steady_clock::now(system::error_code & ec) + { + timespec ts; + if ( ::clock_gettime( CLOCK_MONOTONIC, &ts ) ) + { + if (BOOST_CHRONO_IS_THROWS(ec)) + { + boost::throw_exception( + system::system_error( + errno, + BOOST_CHRONO_SYSTEM_CATEGORY, + "chrono::steady_clock" )); + } + else + { + ec.assign( errno, BOOST_CHRONO_SYSTEM_CATEGORY ); + return time_point(); + } + } + + if (!BOOST_CHRONO_IS_THROWS(ec)) + { + ec.clear(); + } + return time_point(duration( + static_cast<steady_clock::rep>( ts.tv_sec ) * 1000000000 + ts.tv_nsec)); + } +#endif +#endif + +} // namespace chrono +} // namespace boost + + |