Common/test/exTime.cpp

0001 // example of use of time conversions
0002 #include "CondFormats/Common/interface/TimeConversions.h"
0003
0004 #include <iostream>
0005
0006 int main() {
0007   {
0008     std::cout << "boost frac digits " << boost::posix_time::time_duration::num_fractional_digits() << std::endl;
0009     ::timeval stv;
0010     ::gettimeofday(&stv, 0);
0011
0012     cond::Time_t time = cond::time::from_timeval(stv);
0013
0014     std::cout << stv.tv_sec << " " << stv.tv_usec << std::endl;
0015     std::cout << time << std::endl;
0016     stv = cond::time::to_timeval(time);
0017     std::cout << stv.tv_sec << " " << stv.tv_usec << std::endl;
0018
0019     boost::posix_time::ptime bt = cond::time::to_boost(time);
0020
0021     boost::posix_time::time_duration td = bt - cond::time::time0;
0022
0023     std::cout << bt << std::endl;
0024     std::cout << "s. " << td.total_seconds() << "." << td.fractional_seconds() << std::endl;
0025     std::cout << "us " << td.total_microseconds() << std::endl;
0026     std::cout << "ns " << td.total_nanoseconds() << std::endl;
0027     std::cout << std::endl;
0028
0029     // FIXME (when agree with Coral)
0030     //bt +=  boost::posix_time::nanoseconds(19*25);
0031     bt += cond::time::nanoseconds(19 * 25);
0032
0033     td = bt - cond::time::time0;
0034
0035     std::cout << bt << std::endl;
0036     std::cout << "s. " << td.total_seconds() << "." << td.fractional_seconds() << std::endl;
0037     std::cout << "us " << td.total_microseconds() << std::endl;
0038     std::cout << "ns " << td.total_nanoseconds() << std::endl;
0039     std::cout << std::endl;
0040
0041     time = cond::time::from_boost(bt);
0042     cond::UnpackedTime utime = cond::time::unpack(time);
0043     std::cout << "s. " << utime.first << "." << utime.second << std::endl;
0044     stv = cond::time::to_timeval(time);
0045     std::cout << stv.tv_sec << " " << stv.tv_usec << std::endl;
0046   }
0047
0048   return 0;
0049 }