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Time and date functions (in #include <mrpt/system/datetime.h>)

Detailed Description

Collaboration diagram for Time and date functions (in #include <mrpt/system/datetime.h>):

Classes

struct  mrpt::system::TTimeParts
 The parts of a date/time (it's like the standard 'tm' but with fractions of seconds). More...
 

Typedefs

typedef uint64_t mrpt::system::TTimeStamp
 A system independent time type, it holds the the number of 100-nanosecond intervals since January 1, 1601 (UTC). More...
 

Functions

mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::buildTimestampFromParts (const mrpt::system::TTimeParts &p)
 Builds a timestamp from the parts (Parts are in UTC) More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::buildTimestampFromPartsLocalTime (const mrpt::system::TTimeParts &p)
 Builds a timestamp from the parts (Parts are in local time) More...
 
void BASE_IMPEXP mrpt::system::timestampToParts (TTimeStamp t, TTimeParts &p, bool localTime=false)
 Gets the individual parts of a date/time (days, hours, minutes, seconds) - UTC time or local time. More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::getCurrentTime ()
 Returns the current (UTC) system time. More...
 
mrpt::system::TTimeStamp mrpt::system::now ()
 A shortcut for system::getCurrentTime. More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::getCurrentLocalTime ()
 Returns the current (local) time. More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::time_tToTimestamp (const double t)
 Transform from standard "time_t" (actually a double number, it can contain fractions of seconds) to TTimeStamp. More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::time_tToTimestamp (const time_t &t)
 Transform from standard "time_t" to TTimeStamp. More...
 
double BASE_IMPEXP mrpt::system::timestampTotime_t (const mrpt::system::TTimeStamp t)
 Transform from TTimeStamp to standard "time_t" (actually a double number, it can contain fractions of seconds). More...
 
double mrpt::system::timestampToDouble (const mrpt::system::TTimeStamp t)
 Transform from TTimeStamp to standard "time_t" (actually a double number, it can contain fractions of seconds). More...
 
double BASE_IMPEXP mrpt::system::timeDifference (const mrpt::system::TTimeStamp t_first, const mrpt::system::TTimeStamp t_later)
 Returns the time difference from t1 to t2 (positive if t2 is posterior to t1), in seconds. More...
 
double mrpt::system::now_double ()
 Returns the current time, as a double (fractional version of time_t) instead of a TTimeStamp. More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::timestampAdd (const mrpt::system::TTimeStamp tim, const double num_seconds)
 Shifts a timestamp the given amount of seconds (>0: forwards in time, <0: backwards) More...
 
mrpt::system::TTimeStamp
BASE_IMPEXP 
mrpt::system::secondsToTimestamp (const double nSeconds)
 Transform a time interval (in seconds) into TTimeStamp (e.g. More...
 
std::string BASE_IMPEXP mrpt::system::formatTimeInterval (const double timeSeconds)
 Returns a formated string with the given time difference (passed as the number of seconds), as a string [H]H:MM:SS.MILISECS. More...
 
std::string BASE_IMPEXP mrpt::system::dateTimeToString (const mrpt::system::TTimeStamp t)
 Convert a timestamp into this textual form (UTC time): YEAR/MONTH/DAY,HH:MM:SS.MMM. More...
 
std::string BASE_IMPEXP mrpt::system::dateTimeLocalToString (const mrpt::system::TTimeStamp t)
 Convert a timestamp into this textual form (in local time): YEAR/MONTH/DAY,HH:MM:SS.MMM. More...
 
std::string BASE_IMPEXP mrpt::system::dateToString (const mrpt::system::TTimeStamp t)
 Convert a timestamp into this textual form: YEAR/MONTH/DAY. More...
 
double BASE_IMPEXP mrpt::system::extractDayTimeFromTimestamp (const mrpt::system::TTimeStamp t)
 Returns the number of seconds ellapsed from midnight in the given timestamp. More...
 
std::string BASE_IMPEXP mrpt::system::timeToString (const mrpt::system::TTimeStamp t)
 Convert a timestamp into this textual form (UTC): HH:MM:SS.MMMMMM. More...
 
std::string BASE_IMPEXP mrpt::system::timeLocalToString (const mrpt::system::TTimeStamp t, unsigned int secondFractionDigits=6)
 Convert a timestamp into this textual form (in local time): HH:MM:SS.MMMMMM. More...
 
std::string BASE_IMPEXP mrpt::system::intervalFormat (const double seconds)
 This function implements time interval formatting: Given a time in seconds, it will return a string describing the interval with the most appropriate unit. More...
 

Typedef Documentation

A system independent time type, it holds the the number of 100-nanosecond intervals since January 1, 1601 (UTC).

See Also
system::getCurrentTime, system::timeDifference, INVALID_TIMESTAMP, TTimeParts

Definition at line 30 of file datetime.h.

Function Documentation

TTimeStamp mrpt::system::buildTimestampFromParts ( const mrpt::system::TTimeParts p)
TTimeStamp mrpt::system::buildTimestampFromPartsLocalTime ( const mrpt::system::TTimeParts p)
string mrpt::system::dateTimeLocalToString ( const mrpt::system::TTimeStamp  t)

Convert a timestamp into this textual form (in local time): YEAR/MONTH/DAY,HH:MM:SS.MMM.

See Also
dateTimeToString

Definition at line 274 of file datetime.cpp.

References mrpt::format(), int(), and INVALID_TIMESTAMP.

Referenced by mrpt::nav::CWaypointsNavigator::checkHasReachedTarget(), and mrpt::hwdrivers::CNTRIPEmitter::initialize().

string mrpt::system::dateTimeToString ( const mrpt::system::TTimeStamp  t)

Convert a timestamp into this textual form (UTC time): YEAR/MONTH/DAY,HH:MM:SS.MMM.

See Also
dateTimeLocalToString

Definition at line 247 of file datetime.cpp.

References mrpt::format(), int(), and INVALID_TIMESTAMP.

Referenced by mrpt::obs::CObservation::getDescriptionAsText(), mrpt::obs::CObservationGPS::getDescriptionAsText(), and mrpt::graphslam::CGraphSlamEngine< GRAPH_T >::initResultsFile().

string mrpt::system::dateToString ( const mrpt::system::TTimeStamp  t)

Convert a timestamp into this textual form: YEAR/MONTH/DAY.

Definition at line 369 of file datetime.cpp.

References mrpt::format(), and INVALID_TIMESTAMP.

double mrpt::system::extractDayTimeFromTimestamp ( const mrpt::system::TTimeStamp  t)

Returns the number of seconds ellapsed from midnight in the given timestamp.

Definition at line 299 of file datetime.cpp.

References ASSERT_, ASSERTMSG_, INVALID_TIMESTAMP, MRPT_END, and MRPT_START.

Referenced by mrpt::maps::CLandmarksMap::saveToTextFile().

string mrpt::system::formatTimeInterval ( const double  timeSeconds)

Returns a formated string with the given time difference (passed as the number of seconds), as a string [H]H:MM:SS.MILISECS.

See Also
unitsFormat

Definition at line 227 of file datetime.cpp.

References mrpt::format(), and int().

Referenced by mrpt::hmtslam::CHMTSLAM::generateLogFiles(), and mrpt::slam::CMetricMapBuilderICP::processObservation().

mrpt::system::TTimeStamp mrpt::system::getCurrentLocalTime ( )
mrpt::system::TTimeStamp mrpt::system::getCurrentTime ( )
std::string mrpt::system::intervalFormat ( const double  seconds)

This function implements time interval formatting: Given a time in seconds, it will return a string describing the interval with the most appropriate unit.

E.g.: 1.23 year, 3.50 days, 9.3 hours, 5.3 minutes, 3.34 sec, 178.1 ms, 87.1 us.

See Also
unitsFormat

E.g.: 1.23 year, 3.50 days, 9.3 hours, 5.3 minutes, 3.34 sec, 178.1 ms, 87.1 us.

Definition at line 391 of file datetime.cpp.

References mrpt::format().

mrpt::system::TTimeStamp mrpt::system::now ( )
inline

A shortcut for system::getCurrentTime.

See Also
getCurrentTime, getCurrentLocalTime

Definition at line 70 of file datetime.h.

References mrpt::system::getCurrentTime().

Referenced by mrpt::nav::CAbstractPTGBasedReactive::calc_move_candidate_scores(), mrpt::maps::CGasConcentrationGridMap2D::CGasConcentrationGridMap2D(), mrpt::compress::zip::compress_gz_data_block(), mrpt::graphslam::CGraphSlamEngine< GRAPH_T >::computeMap(), mrpt::detectors::CObjectDetection::detectObjects(), mrpt::hwdrivers::CRaePID::doProcess(), mrpt::hwdrivers::CIMUXSens_MT4::doProcess(), mrpt::hwdrivers::CIMUXSens::doProcess(), mrpt::hwdrivers::CSkeletonTracker::doProcess(), mrpt::hwdrivers::CNTRIPEmitter::doProcess(), mrpt::hwdrivers::CIMUIntersense::doProcess(), mrpt::hwdrivers::CGyroKVHDSP3000::doProcess(), mrpt::hwdrivers::CGPSInterface::doProcess(), mrpt::hwdrivers::CRoboPeakLidar::doProcessSimple(), mrpt::hwdrivers::CSickLaserUSB::doProcessSimple(), mrpt::hwdrivers::CCANBusReader::doProcessSimple(), mrpt::hwdrivers::CSickLaserSerial::doProcessSimple(), mrpt::hwdrivers::CHokuyoURG::doProcessSimple(), mrpt::nav::CRobot2NavInterfaceForSimulator_Holo::getCurrentPoseAndSpeeds(), mrpt::nav::CRobot2NavInterfaceForSimulator_DiffDriven::getCurrentPoseAndSpeeds(), mrpt::obs::gnss::Message_NMEA_RMC::getDateAsTimestamp(), mrpt::hwdrivers::CRaePID::getFullInfo(), mrpt::hwdrivers::CKinect::getNextObservation(), mrpt::hwdrivers::CImageGrabber_OpenCV::getObservation(), mrpt::hwdrivers::CImageGrabber_dc1394::getObservation(), mrpt::hwdrivers::CImageGrabber_FlyCapture2::getObservation(), mrpt::hwdrivers::CDUO3DCamera::getObservations(), rp::arch::getus(), mrpt::hwdrivers::CNationalInstrumentsDAQ::grabbing_thread(), mrpt::nav::CAbstractPTGBasedReactive::impl_waypoint_is_reachable(), mrpt::hwdrivers::CGPSInterface::implement_parser_NOVATEL_OEM6(), mrpt::slam::CMetricMapBuilderICP::initialize(), mrpt::hwdrivers::CIMUXSens::initialize(), mrpt::hwdrivers::CNTRIPEmitter::initialize(), mrpt::hwdrivers::CVelodyneScanner::internal_read_PCAP_packet(), mrpt::hwdrivers::CVelodyneScanner::internal_receive_UDP_packet(), rp::hal::Locker::lock(), mrpt::system::MRPT_getCompilationDate(), mrpt::nav::CWaypointsNavigator::navigateWaypoints(), mrpt::hwdrivers::CGPSInterface::parse_NMEA(), mrpt::nav::CAbstractPTGBasedReactive::performNavigationStep(), mrpt::hwdrivers::CVelodyneScanner::receivePackets(), run_pc_filter_test(), run_rnav_test(), mrpt::maps::CGasConcentrationGridMap2D::simulateAdvection(), PacketStamper::stampPacket(), TEST(), rp::hal::Event::wait(), and mrpt::nav::CWaypointsNavigator::waypoints_navigationStep().

double mrpt::system::now_double ( )
inline

Returns the current time, as a double (fractional version of time_t) instead of a TTimeStamp.

See Also
now(), timestampTotime_t()

Definition at line 104 of file datetime.h.

References mrpt::system::getCurrentTime(), and mrpt::system::timestampTotime_t().

mrpt::system::TTimeStamp mrpt::system::secondsToTimestamp ( const double  nSeconds)
mrpt::system::TTimeStamp mrpt::system::time_tToTimestamp ( const double  t)
mrpt::system::TTimeStamp mrpt::system::time_tToTimestamp ( const time_t &  t)

Transform from standard "time_t" to TTimeStamp.

See Also
timestampTotime_t

Definition at line 43 of file datetime.cpp.

double mrpt::system::timeDifference ( const mrpt::system::TTimeStamp  t_first,
const mrpt::system::TTimeStamp  t_later 
)
string mrpt::system::timeLocalToString ( const mrpt::system::TTimeStamp  t,
unsigned int  secondFractionDigits = 6 
)

Convert a timestamp into this textual form (in local time): HH:MM:SS.MMMMMM.

Definition at line 321 of file datetime.cpp.

References mrpt::format(), int(), and INVALID_TIMESTAMP.

Referenced by mrpt::hwdrivers::CNTRIPEmitter::doProcess().

mrpt::system::TTimeStamp mrpt::system::timestampAdd ( const mrpt::system::TTimeStamp  tim,
const double  num_seconds 
)

Shifts a timestamp the given amount of seconds (>0: forwards in time, <0: backwards)

See Also
secondsToTimestamp

Definition at line 197 of file datetime.cpp.

Referenced by mrpt::nav::CAbstractPTGBasedReactive::performNavigationStep(), run_pc_filter_test(), and velodyne_scan_to_pointcloud().

double mrpt::system::timestampToDouble ( const mrpt::system::TTimeStamp  t)
inline

Transform from TTimeStamp to standard "time_t" (actually a double number, it can contain fractions of seconds).

This function is just an (inline) alias of timestampTotime_t(), with a more significant name.

See Also
time_tToTimestamp, secondsToTimestamp

Definition at line 98 of file datetime.h.

References mrpt::system::timestampTotime_t().

void mrpt::system::timestampToParts ( TTimeStamp  t,
TTimeParts p,
bool  localTime = false 
)
double mrpt::system::timestampTotime_t ( const mrpt::system::TTimeStamp  t)
string mrpt::system::timeToString ( const mrpt::system::TTimeStamp  t)

Convert a timestamp into this textual form (UTC): HH:MM:SS.MMMMMM.

Definition at line 347 of file datetime.cpp.

References mrpt::format(), int(), and INVALID_TIMESTAMP.

Referenced by mrpt::graphslam::CGraphSlamEngine< GRAPH_T >::_execGraphSlamStep(), mrpt::hwdrivers::CGPSInterface::doProcess(), and CGraphSlamHandler< GRAPH_T >::initOutputDir().




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