Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/thread/pthread/timespec.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
---|---|
date | Tue, 05 Aug 2014 11:11:38 +0100 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/thread/pthread/timespec.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,120 @@ +#ifndef BOOST_THREAD_PTHREAD_TIMESPEC_HPP +#define BOOST_THREAD_PTHREAD_TIMESPEC_HPP +// (C) Copyright 2007-8 Anthony Williams +// (C) Copyright 2012 Vicente J. Botet Escriba +// +// 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) + +#include <boost/thread/detail/config.hpp> +#include <boost/thread/thread_time.hpp> +#if defined BOOST_THREAD_USES_DATETIME +#include <boost/date_time/posix_time/conversion.hpp> +#endif +#include <pthread.h> +#ifndef _WIN32 +#include <unistd.h> +#endif +#ifdef BOOST_THREAD_USES_CHRONO +#include <boost/chrono/duration.hpp> +#endif + +#if defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__) +# define BOOST_THREAD_TIMESPEC_MAC_API +#include <sys/time.h> //for gettimeofday and timeval +#else +#include <time.h> // for clock_gettime +#endif + +#include <boost/config/abi_prefix.hpp> + +namespace boost +{ + namespace detail + { +#if defined BOOST_THREAD_USES_DATETIME + inline struct timespec to_timespec(boost::system_time const& abs_time) + { + struct timespec timeout = { 0,0}; + boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0); + + timeout.tv_sec=time_since_epoch.total_seconds(); + timeout.tv_nsec=(long)(time_since_epoch.fractional_seconds()*(1000000000l/time_since_epoch.ticks_per_second())); + return timeout; + } +#endif +#if defined BOOST_THREAD_USES_CHRONO + inline timespec to_timespec(chrono::nanoseconds const& ns) + { + struct timespec ts; + ts.tv_sec = static_cast<long>(chrono::duration_cast<chrono::seconds>(ns).count()); + ts.tv_nsec = static_cast<long>((ns - chrono::duration_cast<chrono::seconds>(ns)).count()); + return ts; + } + +#endif + + inline timespec to_timespec(boost::intmax_t const& ns) + { + boost::intmax_t s = ns / 1000000000l; + struct timespec ts; + ts.tv_sec = static_cast<long> (s); + ts.tv_nsec = static_cast<long> (ns - s * 1000000000l); + return ts; + } + inline boost::intmax_t to_nanoseconds_int_max(timespec const& ts) + { + return static_cast<boost::intmax_t>(ts.tv_sec) * 1000000000l + ts.tv_nsec; + } + inline bool timespec_ge_zero(timespec const& ts) + { + return (ts.tv_sec >= 0) || (ts.tv_nsec >= 0); + } + inline timespec timespec_now() + { + timespec ts; + +#if defined(BOOST_THREAD_TIMESPEC_MAC_API) + timeval tv; + ::gettimeofday(&tv, 0); + ts.tv_sec = tv.tv_sec; + ts.tv_nsec = tv.tv_usec * 1000; +#else + if ( ::clock_gettime( CLOCK_REALTIME, &ts ) ) + { + BOOST_ASSERT(0 && "Boost::Thread - Internal Error"); + } +#endif + return ts; + } + inline timespec timespec_zero() + { + timespec ts; + ts.tv_sec = 0; + ts.tv_nsec = 0; + return ts; + } + inline timespec timespec_plus(timespec const& lhs, timespec const& rhs) + { + return to_timespec(to_nanoseconds_int_max(lhs) + to_nanoseconds_int_max(rhs)); + } + inline timespec timespec_minus(timespec const& lhs, timespec const& rhs) + { + return to_timespec(to_nanoseconds_int_max(lhs) - to_nanoseconds_int_max(rhs)); + } + inline bool timespec_gt(timespec const& lhs, timespec const& rhs) + { + return to_nanoseconds_int_max(lhs) > to_nanoseconds_int_max(rhs); + } + inline bool timespec_ge(timespec const& lhs, timespec const& rhs) + { + return to_nanoseconds_int_max(lhs) >= to_nanoseconds_int_max(rhs); + } + + } +} + +#include <boost/config/abi_suffix.hpp> + +#endif