C++ (Cpp) time_duration::fractional_seconds示例

示例#1

文件： logging_thread_tests.cpp 项目： Tri-o-copter/Brainware

    /* threat functions*/
    void datagen_thread_loop(void)
    {
        ostringstream testline;

        /* create testdata*/
        int jj=0;
        for(int ii=0; ii < 8*8-1; ii++) //64 = 63 chars + end line
        {
            if(++jj > 9) jj = 0;
            testline << jj;
        }
        testline << "\n";

        jj=0;
        while(record_thread_running && jj < NUM_LINES)
        {
    #if !defined(WITH_BOOST_TIME)
            clock_gettime(CLOCK_MONOTONIC, &ts_beg); // http://linux.die.net/man/3/clock_gettime
    #else
            start_time = boost::posix_time::microsec_clock::local_time();
    #endif

            // ********************************* //
            *active_buffer += testline.str().c_str();
            if(4*1024 < active_buffer->length()) //write 4 kbyte blocks
            {
                record_trigger.notify_all();
            }
            // ********************************* //

    #if !defined(WITH_BOOST_TIME)
            clock_gettime(CLOCK_MONOTONIC, &ts_end);
            v_fTime_s.push_back(ts_end.tv_sec);
            v_fTime_us.push_back(ts_end.tv_nsec/1e+3);
            v_fDifftime.push_back((ts_end.tv_sec - ts_beg.tv_sec)  + (ts_end.tv_nsec - ts_beg.tv_nsec) / 1e9);
            f_DT_s = (ts_end.tv_sec - ts_beg.tv_sec)  + (ts_end.tv_nsec - ts_beg.tv_nsec) / 1e9;
    #else
            stop_time = boost::posix_time::microsec_clock::local_time();
            time_duration = (stop_time - start_time);
            v_fTime_s.push_back( (stop_time-boost::posix_time::from_time_t(0)).total_seconds() );
            v_fTime_us.push_back( (stop_time-boost::posix_time::from_time_t(0)).fractional_seconds() );
            v_fDifftime.push_back( time_duration.total_seconds()+ time_duration.fractional_seconds()/ 1e6);
            f_DT_s = (time_duration.total_seconds()+ time_duration.fractional_seconds()/ 1e6);
    #endif
    #if defined(DEBUG)
            if(0.5 < 1.e+3*f_DT_s) // log only values above 0.5 ms
            {
                cout << "Line " << jj << " of " << NUM_LINES << ":"
                     << "\t" << v_fTime_s.back() << "." << v_fTime_us.back() << "s: "
                     << "\tdT: " << fixed << 1.e+3*f_DT_s << " ms"
                     << endl;
            }
    #endif
            boost::this_thread::sleep(boost::posix_time::microseconds(4*1e+6*f_DT_s)); //about 50% CPU load
            jj++;
        }//while

        datagen_done = true;
    }

示例#2

文件： platform_time.hpp 项目： betajippity/Nuparu

      platform_duration(boost::posix_time::time_duration const& rel_time)
      {
#if defined BOOST_THREAD_CHRONO_POSIX_API || defined BOOST_THREAD_CHRONO_MAC_API
        ts_val.tv_sec = rel_time.total_seconds();
        ts_val.tv_nsec = static_cast<long>(rel_time.fractional_seconds() * (1000000000l / rel_time.ticks_per_second()));
#else
        ns_val = static_cast<boost::time_max_t>(rel_time.total_seconds()) * 1000000000l;
        ns_val += rel_time.fractional_seconds() * (1000000000l / rel_time.ticks_per_second());
#endif
      }

示例#3

文件： timespec.hpp 项目： CRF/passenger

 inline struct timespec get_timespec(boost::system_time const& abs_time)
 {
     struct timespec timeout={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=time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second());
     return timeout;
 }

示例#4

文件： xtime.hpp 项目： rogerclark/grumble

inline xtime get_xtime(boost::system_time const& abs_time)
{
    xtime res={0};
    boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0);
            
    res.sec=static_cast<xtime::xtime_sec_t>(time_since_epoch.total_seconds());
    res.nsec=static_cast<xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
    return res;
}

示例#5

文件： generator_date.hpp 项目： octopus-prime/hessian_x3

value_visitor::result_type
value_visitor::operator()(const date_t& value)
{
	static const date_t EPOCH(boost::gregorian::date(1970, 1, 1));
	const boost::posix_time::time_duration duration = value - EPOCH;
	if (duration.seconds() == 0 && duration.fractional_seconds() == 0)
	{
		push_back<std::int8_t>('K');
		push_back<std::int32_t>(duration.total_seconds() / 60);
	}
	else
	{
		push_back<std::int8_t>('J');
		push_back<std::int64_t>(duration.total_milliseconds());
	}
}