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// Copyright (C) 2001-2003
// William E. Kempf
// Copyright (C) 2009 Anthony Williams
//
// 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)
// boostinspect:nounnamed
#include <boost/assert.hpp>
namespace {
const int MILLISECONDS_PER_SECOND = 1000;
const int NANOSECONDS_PER_SECOND = 1000000000;
const int NANOSECONDS_PER_MILLISECOND = 1000000;
const int MICROSECONDS_PER_SECOND = 1000000;
const int NANOSECONDS_PER_MICROSECOND = 1000;
#if defined BOOST_THREAD_USES_DATETIME
inline void to_time(int milliseconds, boost::xtime& xt)
{
int res = 0;
res = boost::xtime_get(&xt, boost::TIME_UTC_);
BOOST_ASSERT(res == boost::TIME_UTC_); (void)res;
xt.sec += (milliseconds / MILLISECONDS_PER_SECOND);
xt.nsec += ((milliseconds % MILLISECONDS_PER_SECOND) *
NANOSECONDS_PER_MILLISECOND);
if (xt.nsec >= NANOSECONDS_PER_SECOND)
{
++xt.sec;
xt.nsec -= NANOSECONDS_PER_SECOND;
}
}
#endif
#if defined(BOOST_HAS_PTHREADS)
#if defined BOOST_THREAD_USES_DATETIME
inline void to_timespec(const boost::xtime& xt, timespec& ts)
{
ts.tv_sec = static_cast<int>(xt.sec);
ts.tv_nsec = static_cast<int>(xt.nsec);
if(ts.tv_nsec >= NANOSECONDS_PER_SECOND)
{
ts.tv_sec += ts.tv_nsec / NANOSECONDS_PER_SECOND;
ts.tv_nsec %= NANOSECONDS_PER_SECOND;
}
}
#endif
inline void to_time(int milliseconds, timespec& ts)
{
#if defined BOOST_THREAD_USES_DATETIME
boost::xtime xt;
to_time(milliseconds, xt);
to_timespec(xt, ts);
#else
ts.tv_sec += (milliseconds / MILLISECONDS_PER_SECOND);
ts.tv_nsec += ((milliseconds % MILLISECONDS_PER_SECOND) *
NANOSECONDS_PER_MILLISECOND);
if (ts.tv_nsec >= NANOSECONDS_PER_SECOND)
{
++ts.tv_sec;
ts.tv_nsec -= NANOSECONDS_PER_SECOND;
}
#endif
}
#if defined BOOST_THREAD_USES_DATETIME
inline void to_timespec_duration(const boost::xtime& xt, timespec& ts)
{
boost::xtime cur;
int res = 0;
res = boost::xtime_get(&cur, boost::TIME_UTC_);
BOOST_ASSERT(res == boost::TIME_UTC_); (void)res;
if (boost::xtime_cmp(xt, cur) <= 0)
{
ts.tv_sec = 0;
ts.tv_nsec = 0;
}
else
{
ts.tv_sec = xt.sec - cur.sec;
ts.tv_nsec = xt.nsec - cur.nsec;
if( ts.tv_nsec < 0 )
{
ts.tv_sec -= 1;
ts.tv_nsec += NANOSECONDS_PER_SECOND;
}
if(ts.tv_nsec >= NANOSECONDS_PER_SECOND)
{
ts.tv_sec += ts.tv_nsec / NANOSECONDS_PER_SECOND;
ts.tv_nsec %= NANOSECONDS_PER_SECOND;
}
}
}
#endif
#endif
#if defined BOOST_THREAD_USES_DATETIME
inline void to_duration(boost::xtime xt, int& milliseconds)
{
boost::xtime cur;
int res = 0;
res = boost::xtime_get(&cur, boost::TIME_UTC_);
BOOST_ASSERT(res == boost::TIME_UTC_); (void)res;
if (boost::xtime_cmp(xt, cur) <= 0)
milliseconds = 0;
else
{
if (cur.nsec > xt.nsec)
{
xt.nsec += NANOSECONDS_PER_SECOND;
--xt.sec;
}
milliseconds = (int)((xt.sec - cur.sec) * MILLISECONDS_PER_SECOND) +
(((xt.nsec - cur.nsec) + (NANOSECONDS_PER_MILLISECOND/2)) /
NANOSECONDS_PER_MILLISECOND);
}
}
inline void to_microduration(boost::xtime xt, int& microseconds)
{
boost::xtime cur;
int res = 0;
res = boost::xtime_get(&cur, boost::TIME_UTC_);
BOOST_ASSERT(res == boost::TIME_UTC_); (void)res;
if (boost::xtime_cmp(xt, cur) <= 0)
microseconds = 0;
else
{
if (cur.nsec > xt.nsec)
{
xt.nsec += NANOSECONDS_PER_SECOND;
--xt.sec;
}
microseconds = (int)((xt.sec - cur.sec) * MICROSECONDS_PER_SECOND) +
(((xt.nsec - cur.nsec) + (NANOSECONDS_PER_MICROSECOND/2)) /
NANOSECONDS_PER_MICROSECOND);
}
}
#endif
}
// Change Log:
// 1 Jun 01 Initial creation.
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Swift