ns3::Time Class Reference

Simulation virtual time values and global simulation resolution. More...

#include <nstime.h>

Collaboration diagram for ns3::Time:

Classes
struct	Information
	How to convert between other units and the current unit. More...
struct	Resolution
	Current time unit, and conversion info. More...

Public Types
enum	Unit {   Y = 0, D = 1, H = 2, MIN = 3,   S = 4, MS = 5, US = 6, NS = 7,   PS = 8, FS = 9, LAST = 10 }
	The unit to use to interpret a number representing time. More...

Public Member Functions
	Time ()
	Time (const Time &o)
	Time (double v)
	Time (int v)
	Time (long int v)
	Time (long long int v)
	Time (unsigned int v)
	Time (unsigned long int v)
	Time (unsigned long long int v)
	Time (const std::string &s)
	Construct Time object from common time expressions like "1ms". More...
	Time (const int64x64_t &value)
	~Time ()
	Destructor. More...
TimeWithUnit	As (const enum Unit unit) const
	Attach a unit to a Time, to facilitate output in a specific unit. More...
int	Compare (const Time &o) const
double	GetDays (void) const
double	GetDouble (void) const
int64_t	GetFemtoSeconds (void) const
double	GetHours (void) const
int64_t	GetInteger (void) const
int64_t	GetMicroSeconds (void) const
int64_t	GetMilliSeconds (void) const
double	GetMinutes (void) const
int64_t	GetNanoSeconds (void) const
int64_t	GetPicoSeconds (void) const
double	GetSeconds (void) const
int64_t	GetTimeStep (void) const
double	GetYears (void) const
bool	IsNegative (void) const
bool	IsPositive (void) const
bool	IsStrictlyNegative (void) const
bool	IsStrictlyPositive (void) const
bool	IsZero (void) const
	operator int64x64_t () const
Time &	operator= (const Time &o)
int64x64_t	To (enum Unit timeUnit) const
double	ToDouble (enum Unit timeUnit) const
int64_t	ToInteger (enum Unit timeUnit) const

Static Public Member Functions
static Time	From (const int64x64_t &from, enum Unit timeUnit)
static Time	From (const int64x64_t &value)
static Time	FromDouble (double value, enum Unit timeUnit)
static Time	FromInteger (uint64_t value, enum Unit timeUnit)
static enum Unit	GetResolution (void)
static Time	Max ()
	Maximum representable Time. More...
static Time	Min ()
	Minimum representable Time. More...
static void	SetResolution (enum Unit resolution)
static bool	StaticInit ()
	Function to force static initialization of Time. More...

Private Types
typedef std::set< Time * >	MarkedTimes
	Record all instances of Time, so we can rescale them when the resolution changes. More...

Static Private Member Functions
static void	Clear (Time *const time)
	Remove a Time instance from the MarkedTimes, called by ~Time() More...
static void	ClearMarkedTimes ()
	Remove all MarkedTimes. More...
static void	ConvertTimes (const enum Unit unit)
	Convert existing Times to the new unit. More...
static void	Mark (Time *const time)
	Record a Time instance with the MarkedTimes. More...
static struct Information *	PeekInformation (enum Unit timeUnit)
static struct Resolution *	PeekResolution (void)
static struct Resolution	SetDefaultNsResolution (void)
static void	SetResolution (enum Unit unit, struct Resolution *resolution, const bool convert=true)

Private Attributes
int64_t	m_data
	Virtual time value, in the current unit. More...

Static Private Attributes
static MarkedTimes *	g_markingTimes = 0
	Record of outstanding Time objects which will need conversion when the resolution is set. More...

Friends
Time	Abs (const Time &time)
	Absolute value function for Time. More...
Time	Max (const Time &ta, const Time &tb)
	Max function for Time. More...
Time	Min (const Time &ta, const Time &tb)
	Min function for Time. More...
bool	operator!= (const Time &lhs, const Time &rhs)
Time	operator* (const Time &lhs, const int64_t &rhs)
Time	operator* (const int64_t &lhs, const Time &rhs)
Time	operator+ (const Time &lhs, const Time &rhs)
Time &	operator+= (Time &lhs, const Time &rhs)
Time	operator- (const Time &lhs, const Time &rhs)
Time &	operator-= (Time &lhs, const Time &rhs)
int64_t	operator/ (const Time &lhs, const Time &rhs)
Time	operator/ (const Time &lhs, const int64_t &rhs)
bool	operator< (const Time &lhs, const Time &rhs)
bool	operator<= (const Time &lhs, const Time &rhs)
bool	operator== (const Time &lhs, const Time &rhs)
bool	operator> (const Time &lhs, const Time &rhs)
bool	operator>= (const Time &lhs, const Time &rhs)
class	Simulator

Related Functions
(Note that these are not member functions.)
Time	Days (double days)
	create ns3::Time instances in units of days (equal to 24 hours). More...
Time	Days (int64x64_t days)
Time	FemtoSeconds (uint64_t fs)
	create ns3::Time instances in units of femtoseconds. More...
Time	FemtoSeconds (int64x64_t fs)
SystemMutex &	GetMarkingMutex ()
Time	Hours (double hours)
	create ns3::Time instances in units of hours (equal to 60 minutes). More...
Time	Hours (int64x64_t hours)
Time	MicroSeconds (uint64_t us)
	create ns3::Time instances in units of microseconds. More...
Time	MicroSeconds (int64x64_t us)
Time	MilliSeconds (uint64_t ms)
	create ns3::Time instances in units of milliseconds. More...
Time	MilliSeconds (int64x64_t ms)
Time	Minutes (double minutes)
	create ns3::Time instances in units of minutes (equal to 60 seconds). More...
Time	Minutes (int64x64_t minutes)
Time	NanoSeconds (uint64_t ns)
	create ns3::Time instances in units of nanoseconds. More...
Time	NanoSeconds (int64x64_t ns)
std::ostream &	operator<< (std::ostream &os, const Time &time)
	Time output streamer. More...
std::istream &	operator>> (std::istream &is, Time &time)
	Time input streamer. More...
Time	PicoSeconds (uint64_t ps)
	create ns3::Time instances in units of picoseconds. More...
Time	PicoSeconds (int64x64_t ps)
Time	Seconds (double seconds)
	create ns3::Time instances in units of seconds. More...
Time	Seconds (int64x64_t seconds)
Time	Years (double years)
	create ns3::Time instances in units of years (equal to 365 days). More...
Time	Years (int64x64_t years)

Detailed Description

Simulation virtual time values and global simulation resolution.

This class defines all the classic C++ addition/subtraction operators: +, -, +=, -=; and all the classic comparison operators: ==, !=, <, >, <=, >=. It is thus easy to add, substract, or compare Time objects.

For example:

Time t1 = Seconds (10.0);
Time t2 = Seconds (10.0);
Time t3 = t1;
t3 += t2;

You can also use the following non-member functions to manipulate any of these ns3::Time object:

• Abs()
• Max()
• Min()

This class also controls the resolution of the underlying time value. The resolution is the smallest representable time interval. The default resolution is nanoseconds.

To change the resolution, use SetResolution(). All Time objects created before the call to SetResolution() will be updated to the new resolution. This can only be done once! (Tracking each Time object uses 4 pointers. For speed, once we convert the existing instances we discard the recording data structure and stop tracking new instances, so we have no way to do a second conversion.)

If you increase the global resolution, you also implicitly decrease the range of your simulation. The global simulation time is stored in a 64 bit integer, whose interpretation will depend on the global resolution. Therefore the maximum duration of your simulation, if you use picoseconds, is 2^64 ps = 2^24 s = 7 months, whereas, had you used nanoseconds, you could have run for 584 years.

Definition at line 79 of file nstime.h.

Member Typedef Documentation

typedef std::set< Time * > ns3::Time::MarkedTimes

private

Record all instances of Time, so we can rescale them when the resolution changes.

Internal:

We use a std::set so we can remove the record easily when ~Time() is called.

We don't use Ptr<Time>, because we would have to bloat every Time instance with SimpleRefCount<Time>.

Seems like this should be std::set< Time * const >, but Stack Overflow says otherwise, quoting the standard:

& sect;23.1/3 states that std::set key types must be assignable and copy constructable; clearly a const type will not be assignable.

Definition at line 561 of file nstime.h.

Member Enumeration Documentation

enum ns3::Time::Unit

The unit to use to interpret a number representing time.

Enumerator
Y	year, 365 days
D	day, 24 hours
H	hour, 60 minutes
MIN	minute, 60 seconds
S	second
MS	millisecond
US	microsecond
NS	nanosecond
PS	picosecond
FS	femtosecond
LAST

Definition at line 85 of file nstime.h.

Constructor & Destructor Documentation

ns3::Time::Time ( )

inline

Definition at line 105 of file nstime.h.

References g_markingTimes, and Mark().

Referenced by From(), FromInteger(), Max(), and Min().

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ns3::Time::Time ( const Time &  o )

inline

Definition at line 113 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( double  v )

inlineexplicit

Definition at line 121 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( int  v )

inlineexplicit

Definition at line 129 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( long int  v )

inlineexplicit

Definition at line 137 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( long long int  v )

inlineexplicit

Definition at line 145 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( unsigned int  v )

inlineexplicit

Definition at line 153 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( unsigned long int  v )

inlineexplicit

Definition at line 161 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( unsigned long long int  v )

inlineexplicit

Definition at line 169 of file nstime.h.

References g_markingTimes, and Mark().

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ns3::Time::Time ( const std::string &  s )

explicit

Construct Time object from common time expressions like "1ms".

Supported units include:

• s (seconds)
• ms (milliseconds)
• us (microseconds)
• ns (nanoseconds)
• ps (picoseconds)
• fs (femtoseconds)
• min (minutes)
• h (hours)
• d (days)
• y (years)

There can be no white space between the numerical portion and the units. Any otherwise malformed string causes a fatal error to occur.

Parameters

s	The string to parse into a Time

Definition at line 92 of file time.cc.

References D, FromDouble(), FS, g_markingTimes, H, Mark(), MIN, MS, NS, NS_ABORT_MSG, NS_LOG_FUNCTION, PS, S, US, and Y.

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ns3::Time::~Time ( )

inline

Destructor.

Definition at line 217 of file nstime.h.

References Clear(), and g_markingTimes.

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ns3::Time::Time ( const int64x64_t &  value )

inlineexplicit

Definition at line 480 of file nstime.h.

References g_markingTimes, and Mark().

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Member Function Documentation

TimeWithUnit ns3::Time::As

(

const enum Unit

unit

)

const

Attach a unit to a Time, to facilitate output in a specific unit.

For example,

Time t (3.14e9);  // Pi seconds
std::cout << t.As (Time::MS) << std::endl;

will print +3140.0ms

Parameters

unit	[in] The unit to use.

Definition at line 384 of file time.cc.

Referenced by TimeIntputOutputTestCase::DoRun(), and ns3::operator<<().

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void ns3::Time::Clear ( Time *const  time )

staticprivate

Remove a Time instance from the MarkedTimes, called by ~Time()

Definition at line 309 of file time.cc.

References g_markingTimes, GetMarkingMutex(), NS_ASSERT, NS_ASSERT_MSG, NS_LOG_FUNCTION, NS_LOG_LOGIC, and NS_LOG_WARN.

Referenced by ~Time().

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void ns3::Time::ClearMarkedTimes ( )

staticprivate

Remove all MarkedTimes.

Internal:

Has to be visible to the Simulator class, hence the friending.

Internal:

We're called by Simulator::Run, which knows nothing about the mutex, so we need a critical section here.

It would seem natural to use this function at the end of ConvertTimes, but that function already has the mutex. Our SystemMutex throws a fatal error if we try to lock it more than once in the same thread (at least in the unix implementation), so calling this function from ConvertTimes is a bad idea.

Instead, we copy this body into ConvertTimes.

Definition at line 252 of file time.cc.

References g_markingTimes, GetMarkingMutex(), NS_LOG_FUNCTION_NOARGS, and NS_LOG_LOGIC.

Referenced by ns3::Simulator::Run().

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int ns3::Time::Compare ( const Time &  o ) const

inline

Returns

-1,0,+1 if this < o, this == o, or this > o

Definition at line 263 of file nstime.h.

References m_data.

void ns3::Time::ConvertTimes ( const enum Unit  unit )

staticprivate

Convert existing Times to the new unit.

Definition at line 339 of file time.cc.

References g_markingTimes, GetMarkingMutex(), m_data, NS_ASSERT_MSG, NS_LOG_FUNCTION_NOARGS, NS_LOG_LOGIC, and ToInteger().

Referenced by SetResolution().

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static Time ns3::Time::From ( const int64x64_t &  from, enum Unit  timeUnit  )

inlinestatic

Definition at line 446 of file nstime.h.

References ns3::Time::Information::fromMul, ns3::int64x64_t::MulByInvert(), PeekInformation(), Time(), and ns3::Time::Information::timeFrom.

Referenced by Days(), FemtoSeconds(), FromDouble(), Hours(), MicroSeconds(), MilliSeconds(), Minutes(), NanoSeconds(), PicoSeconds(), Seconds(), and Years().

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static Time ns3::Time::From ( const int64x64_t &  value )

inlinestatic

Definition at line 488 of file nstime.h.

References Time().

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static Time ns3::Time::FromDouble ( double  value, enum Unit  timeUnit  )

inlinestatic

Parameters

value	to convert into a Time object
timeUnit	the unit of the value to convert

Returns

a new Time object

See also

FromInteger, ToInteger, ToDouble

Definition at line 431 of file nstime.h.

References From().

Referenced by Days(), Hours(), ns3::RttMeanDeviation::Measurement(), Minutes(), Seconds(), Time(), and Years().

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static Time ns3::Time::FromInteger ( uint64_t  value, enum Unit  timeUnit  )

inlinestatic

Parameters

value	to convert into a Time object
timeUnit	the unit of the value to convert

Returns

a new Time object

This method interprets the input value according to the input unit and constructs a matching Time object.

See also

FromDouble, ToDouble, ToInteger

Definition at line 390 of file nstime.h.

References ns3::Time::Information::factor, ns3::Time::Information::fromMul, PeekInformation(), and Time().

Referenced by FemtoSeconds(), MicroSeconds(), MilliSeconds(), NanoSeconds(), PicoSeconds(), and ns3::RttMeanDeviation::RetransmitTimeout().

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double ns3::Time::GetDays ( void  ) const

inline

Returns

an approximation in days of the time stored in this instance.

Definition at line 338 of file nstime.h.

References D, and ToDouble().

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double ns3::Time::GetDouble ( void  ) const

inline

Definition at line 358 of file nstime.h.

References m_data.

int64_t ns3::Time::GetFemtoSeconds ( void  ) const

inline

Returns

an approximation in femtoseconds of the time stored in this instance.

Definition at line 313 of file nstime.h.

References FS, and ToInteger().

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double ns3::Time::GetHours ( void  ) const

inline

Returns

an approximation in hours of the time stored in this instance.

Definition at line 330 of file nstime.h.

References H, and ToDouble().

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int64_t ns3::Time::GetInteger ( void  ) const

inline

Definition at line 362 of file nstime.h.

References GetTimeStep().

Referenced by ns3::DistributedSimulatorImpl::CalculateLookAhead(), TimeSimpleTestCase::DoRun(), ns3::NullMessageMpiInterface::SendNullMessage(), ns3::GrantedTimeWindowMpiInterface::SendPacket(), and ns3::NullMessageMpiInterface::SendPacket().

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int64_t ns3::Time::GetMicroSeconds ( void  ) const

inline

Returns

an approximation in microseconds of the time stored in this instance.

Definition at line 289 of file nstime.h.

References ToInteger(), and US.

Referenced by ns3::dot11s::IeBeaconTiming::BeaconIntervalToU16(), ns3::WifiRemoteStationInfo::CalculateAveragingCoefficient(), ns3::ApWifiMac::DoInitialize(), ns3::dot11s::HwmpProtocol::GetActivePathLifetime(), ns3::NscTcpL4Protocol::gettime(), Ns3TcpStateTestCase::Ipv4L3Tx(), Ns3TcpLossTestCase::Ipv4L3Tx(), Ns3TcpInteroperabilityTestCase::Ipv4L3Tx(), ns3::LrWpanCsmaCa::RandomBackoffDelay(), ns3::MeshWifiInterfaceMac::Receive(), ns3::dot11s::HwmpProtocol::ReceivePreq(), ns3::MeshWifiInterfaceMac::SendBeacon(), ns3::ApWifiMac::SendOneBeacon(), ns3::dot11s::HwmpProtocol::SendProactivePreq(), ns3::ApWifiMac::SendProbeResp(), ns3::dot11s::PeerLink::SetBeaconInformation(), ns3::ApWifiMac::SetBeaconInterval(), ns3::dot11s::PeerLink::SetConfirmTimer(), ns3::WifiMacHeader::SetDuration(), ns3::dot11s::PeerLink::SetHoldingTimer(), ns3::dot11s::PeerLink::SetRetryTimer(), ns3::DcfManager::SetSlot(), ns3::dot11s::IeBeaconTiming::TimestampToU16(), ns3::dot11s::PeerManagementProtocol::TimeToTu(), ns3::MinstrelWifiManager::UpdateStats(), and ns3::PcapFileWrapper::Write().

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int64_t ns3::Time::GetMilliSeconds ( void  ) const

inline

Returns

an approximation in milliseconds of the time stored in this instance.

Definition at line 281 of file nstime.h.

References MS, and ToInteger().

Referenced by ns3::TraceFadingLossModel::DoCalcRxPowerSpectralDensity(), ns3::A3RsrpHandoverAlgorithm::DoInitialize(), ns3::LteRlcTm::DoReportBufferStatus(), ns3::LteRlcUm::DoReportBufferStatus(), ns3::LteRlcAm::DoReportBufferStatus(), RttTestCase::DoRun(), LenaDataPhyErrorModelTestCase::DoRun(), LenaDlCtrlPhyErrorModelTestCase::DoRun(), LteUeMeasurementsHandoverTestCase::DoRun(), ns3::LteSpectrumPhy::EndRxData(), LteHandoverTargetTestCase::HandoverStartCallback(), ns3::TraceFadingLossModel::LoadTrace(), JakesPropagationExample::Next(), ns3::V4Ping::Receive(), ns3::LteUePhy::ReceiveLteControlMessageList(), LteUeMeasurementsPiecewiseTestCase1::RecvMeasurementReportCallback(), LteUeMeasurementsPiecewiseTestCase2::RecvMeasurementReportCallback(), LteUeMeasurementsHandoverTestCase::RecvMeasurementReportCallback(), ns3::aodv::RrepHeader::RrepHeader(), ns3::aodv::RrepHeader::SetHello(), ns3::aodv::RrepHeader::SetLifeTime(), and ns3::LteEnbPhy::StartSubFrame().

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double ns3::Time::GetMinutes ( void  ) const

inline

Returns

an approximation in minutes of the time stored in this instance.

Definition at line 322 of file nstime.h.

References MIN, and ToDouble().

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int64_t ns3::Time::GetNanoSeconds ( void  ) const

inline

Returns

an approximation in nanoseconds of the time stored in this instance.

Definition at line 297 of file nstime.h.

References NS, and ToInteger().

Referenced by ns3::AcousticModemEnergyModel::ChangeState(), ns3::WifiRadioEnergyModel::ChangeState(), ns3::MacStatsCalculator::DlScheduling(), ns3::LteRlcUm::DoReceivePdu(), ns3::LteRlcTm::DoReceivePdu(), ns3::LteRlcAm::DoReceivePdu(), ns3::LtePdcp::DoReceivePdu(), ns3::LteRlcSm::DoReceivePdu(), TimeSimpleTestCase::DoRun(), OcbWifiMacTestCase::DoRun(), TimeIntputOutputTestCase::DoRun(), OcbWifiMacTestCase::MacAssoc(), SimulatorEventsTestCase::NowUs(), OcbWifiMacTestCase::PhyRxOkTrace(), OcbWifiMacTestCase::PhyTxTrace(), ns3::PhyStatsCalculator::ReportCurrentCellRsrpSinr(), ns3::PhyStatsCalculator::ReportInterference(), ns3::PhyStatsCalculator::ReportUeSinr(), ns3::RlcTag::Serialize(), ns3::PdcpTag::Serialize(), TimestampTag::Serialize(), ns3::Synchronizer::TimeStepToNanosecond(), ns3::MacStatsCalculator::UlScheduling(), ns3::RadioBearerStatsCalculator::WriteDlResults(), and ns3::RadioBearerStatsCalculator::WriteUlResults().

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int64_t ns3::Time::GetPicoSeconds ( void  ) const

inline

Returns

an approximation in picoseconds of the time stored in this instance.

Definition at line 305 of file nstime.h.

References PS, and ToInteger().

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enum Time::Unit ns3::Time::GetResolution ( void  )

static

Returns

the current global resolution.

Definition at line 376 of file time.cc.

References PeekResolution(), and ns3::Time::Resolution::unit.

Referenced by ns3::operator<<().

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double ns3::Time::GetSeconds ( void  ) const

inline

Returns

an approximation in seconds of the time stored in this instance.

Definition at line 272 of file nstime.h.

References S, and ToDouble().

Referenced by ns3::dsr::RouteCache::AddRoute_Link(), ns3::AsciiLrWpanMacTransmitSinkWithContext(), ns3::AsciiLrWpanMacTransmitSinkWithoutContext(), ns3::AsciiPhyReceiveSinkWithContext(), ns3::AsciiPhyReceiveSinkWithoutContext(), ns3::AsciiPhyRxOkEvent(), ns3::AsciiPhyTransmitSinkWithContext(), ns3::AsciiPhyTransmitSinkWithoutContext(), ns3::AsciiPhyTxEvent(), ns3::WimaxHelper::AsciiRxEvent(), ns3::WimaxHelper::AsciiTxEvent(), ns3::UanPhyCalcSinrFhFsk::CalcSinrDb(), ns3::InterferenceHelper::CalculateChunkSuccessRate(), ns3::SimpleOfdmWimaxPhy::CalculateDataRate(), ns3::DistributedSimulatorImpl::CalculateLookAhead(), ns3::BasicEnergySource::CalculateRemainingEnergy(), ns3::LiIonEnergySource::CalculateRemainingEnergy(), ns3::LteUeRrc::CancelEnteringTrigger(), ns3::LteUeRrc::CancelLeavingTrigger(), ns3::AcousticModemEnergyModel::ChangeState(), ns3::WifiRadioEnergyModel::ChangeState(), CheckQueueSize(), LteX2HandoverMeasuresTestCase::CheckStats(), LteX2HandoverTestCase::CheckStatsAWhileAfterHandover(), ns3::UanMacRcGw::ComputeAlpha(), ns3::UanMacRcGw::ComputeExpS(), BatteryLifetimeTest::ConstantLoadTest(), Ns2MobilityHelperTest::CourseChange(), WaypointMobilityModelNotifyTest::CourseChangeCallback(), ns3::AnimationInterface::CsmaPhyTxEndTrace(), CwndChange(), CwndTracer(), Ns3TcpLossTestCase::CwndTracer(), ns3::AsciiTraceHelper::DefaultDequeueSinkWithContext(), ns3::AsciiTraceHelper::DefaultDequeueSinkWithoutContext(), ns3::AsciiTraceHelper::DefaultDropSinkWithContext(), ns3::AsciiTraceHelper::DefaultDropSinkWithoutContext(), ns3::AsciiTraceHelper::DefaultEnqueueSinkWithContext(), ns3::AsciiTraceHelper::DefaultEnqueueSinkWithoutContext(), ns3::AsciiTraceHelper::DefaultReceiveSinkWithContext(), ns3::AsciiTraceHelper::DefaultReceiveSinkWithoutContext(), ns3::AnimationInterface::DevTxTrace(), ns3::TraceFadingLossModel::DoCalcRxPowerSpectralDensity(), ns3::SimpleOfdmWimaxPhy::DoGetFrameDurationCode(), ns3::SimpleOfdmWimaxPhy::DoGetNrBytes(), ns3::SimpleOfdmWimaxPhy::DoGetNrSymbols(), ns3::dot11s::HwmpProtocol::DoInitialize(), ns3::MeshWifiInterfaceMac::DoInitialize(), ns3::RipNg::DoInitialize(), TimesWithSignsTestCase::DoRun(), ns3::SimpleOfdmWimaxPhy::DoSetPhyParameters(), ns3::RandomWalk2dMobilityModel::DoWalk(), ns3::GaussMarkovMobilityModel::DoWalk(), ns3::TcpWestwood::DupAck(), LteHandoverDelayTestCase::EnbHandoverEndOkCallback(), ns3::LteTestSinrChunkProcessor::End(), ns3::LteCtrlSinrChunkProcessor::End(), ns3::LteDataSinrChunkProcessor::End(), ns3::LteRsReceivedPowerChunkProcessor::End(), ns3::LteInterferencePowerChunkProcessor::End(), ns3::BaseStationNetDevice::EndDlSubFrame(), ns3::BaseStationNetDevice::EndUlSubFrame(), ns3::UanMacCw::Enqueue(), ns3::TcpWestwood::EstimateBW(), ns3::ShannonSpectrumErrorModel::EvaluateChunk(), ns3::LteTestSinrChunkProcessor::EvaluateSinrChunk(), ns3::LteCtrlSinrChunkProcessor::EvaluateSinrChunk(), ns3::LteDataSinrChunkProcessor::EvaluateSinrChunk(), ns3::LteRsReceivedPowerChunkProcessor::EvaluateSinrChunk(), ns3::LteInterferencePowerChunkProcessor::EvaluateSinrChunk(), ExampleFunction(), ns3::dsr::RouteCache::FindSameRoute(), ns3::SpectrumAnalyzer::GenerateReport(), GenerateTraffic(), ns3::UanMacRcGw::GetExpPdk(), ns3::dsdv::RoutingProtocol::GetSettlingTime(), ns3::JakesProcess::Oscillator::GetValueAt(), ns3::AnimationInterface::GetXMLOpenClose_linkupdate(), ns3::AnimationInterface::GetXMLOpenClose_nodeupdate(), ns3::AnimationInterface::GetXMLOpenClose_routing(), ns3::AnimationInterface::GetXMLOpenClose_rp(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodeColor(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodeCounter(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodeDescription(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodeImage(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodePosition(), ns3::AnimationInterface::GetXMLOpenCloseUpdateNodeSize(), MyModel::HandleEvent(), DynamicGlobalRoutingTestCase::HandleRead(), ns3::dsr::RouteCache::IncStability(), ns3::RedQueue::InitializeParams(), ns3::SubscriberStationNetDevice::InitSubscriberStationNetDevice(), ns3::aodv::RoutingTableEntry::Invalidate(), ns3::Ipv4L3ProtocolDropSinkWithContext(), ns3::Ipv4L3ProtocolDropSinkWithoutContext(), ns3::Ipv4L3ProtocolRxSinkWithContext(), ns3::Ipv4L3ProtocolRxSinkWithoutContext(), ns3::Ipv4L3ProtocolTxSinkWithContext(), ns3::Ipv4L3ProtocolTxSinkWithoutContext(), ns3::Ipv6L3ProtocolDropSinkWithContext(), ns3::Ipv6L3ProtocolDropSinkWithoutContext(), ns3::Ipv6L3ProtocolRxSinkWithContext(), ns3::Ipv6L3ProtocolRxSinkWithoutContext(), ns3::Ipv6L3ProtocolTxSinkWithContext(), ns3::Ipv6L3ProtocolTxSinkWithoutContext(), ns3::ArpCache::Entry::IsExpired(), ns3::olsr::RoutingProtocol::LinkSensing(), main(), ns3::aodv::RoutingTable::MarkLinkAsUnidirectional(), ns3::BaseStationNetDevice::MarkUplinkAllocations(), modify(), NotifyConnectionEstablishedEnb(), NotifyConnectionEstablishedUe(), NotifyHandoverEndOkEnb(), NotifyHandoverEndOkUe(), NotifyHandoverStartEnb(), NotifyHandoverStartUe(), ns3::UanMacCw::NotifyTxStart(), ns3::operator*(), ns3::operator<<(), LrWpanCcaTestCase::PhyRxBegin(), LrWpanCcaTestCase::PhyRxDrop(), LrWpanCcaTestCase::PhyRxEnd(), LrWpanCcaTestCase::PhyTxBegin(), LrWpanCcaTestCase::PhyTxEnd(), LrWpanCcaTestCase::PlmeCcaConfirm(), ns3::SeqTsHeader::Print(), ns3::UanHeaderRcData::Print(), ns3::dsdv::RoutingTableEntry::Print(), ns3::UanHeaderRcRts::Print(), ns3::UanHeaderRcCtsGlobal::Print(), ns3::UanHeaderRcCts::Print(), PrintCellInfo(), IpAddressHelper::PrintIpAddresses(), PrintReceivedPacket(), ns3::dsdv::RoutingProtocol::PrintRoutingTable(), ns3::aodv::RoutingProtocol::PrintRoutingTable(), ns3::Ipv4ListRouting::PrintRoutingTable(), ns3::Ipv6ListRouting::PrintRoutingTable(), ns3::RipNg::PrintRoutingTable(), ns3::Ipv6StaticRouting::PrintRoutingTable(), ns3::UplinkSchedulerMBQoS::ProcessBandwidthRequest(), ns3::AnimPacketInfo::ProcessRxEnd(), ns3::AnimationInterface::PurgePendingCsma(), ns3::AnimationInterface::PurgePendingLte(), ns3::AnimationInterface::PurgePendingWifi(), ns3::AnimationInterface::PurgePendingWimax(), RandomFunction(), ns3::UanMacRc::ReceiveOkFromPhy(), ns3::dsdv::RoutingProtocol::RecvDsdv(), ns3::dot11s::HwmpProtocol::Report(), ns3::flame::FlameProtocol::Report(), ns3::dot11s::PeerLink::Report(), ns3::MeshWifiInterfaceMac::Report(), ns3::MeshHelper::Report(), ns3::FlowMonitor::ReportLastRx(), SampleEmitter::Reschedule(), NetAnimExperiment::ResetData(), Experiment::ResetData(), ns3::TcpWestwood::Retransmit(), ns3::RttMeanDeviation::RetransmitTimeout(), ns3::RttEstimator::RttEstimator(), ns3::RvBatteryModel::RvModelAFunction(), ns3::UanMacRc::ScheduleData(), ns3::dsr::DsrRouting::ScheduleNetworkPacketRetry(), ns3::dsr::DsrRouting::ScheduleRreqRetry(), ns3::aodv::RoutingProtocol::SendRerrMessage(), ns3::aodv::RoutingProtocol::SendRerrWhenNoRouteToForward(), ns3::RipNg::SendTriggeredRouteUpdate(), ns3::RipNg::SendUnsolicitedRouteUpdate(), ns3::UanHeaderRcData::Serialize(), ns3::UanHeaderRcRts::Serialize(), ns3::UanHeaderRcCtsGlobal::Serialize(), ns3::UanHeaderRcCts::Serialize(), ns3::dot11s::PeerLink::SetBeaconInformation(), ns3::SimpleDeviceEnergyModel::SetCurrentA(), ns3::olsr::MessageHeader::Hello::SetHTime(), ns3::UanPdp::SetTap(), ns3::olsr::MessageHeader::SetVTime(), showPosition(), DynamicGlobalRoutingTestCase::SinkRx(), SocketPrinter(), SsThreshTracer(), ns3::dsr::DsrRouting::Start(), ns3::UanMacRcGw::StartCycle(), ns3::BaseStationNetDevice::StartDlSubFrame(), Ns3TcpStateTestCase::StartFlow(), Ns3TcpLossTestCase::StartFlow(), ns3::BaseStationNetDevice::StartFrame(), ns3::UanMacCw::StartTimer(), ns3::BaseStationNetDevice::StartUlSubFrame(), StateChangeNotification(), ns3::UanPdp::SumTapsC(), ns3::UanPdp::SumTapsFromMaxC(), ns3::UanPdp::SumTapsFromMaxNc(), ns3::UanPdp::SumTapsNc(), TestDeterministicByTime(), ns3::TimePrinter(), ns3::CsmaNetDevice::TransmitCompleteEvent(), ns3::CsmaChannel::TransmitEnd(), ns3::PointToPointNetDevice::TransmitStart(), ns3::CsmaNetDevice::TransmitStart(), LteHandoverDelayTestCase::UeHandoverEndOkCallback(), ns3::ConstantVelocityHelper::Update(), BatteryLifetimeTest::VariableLoadTest(), ns3::WriteAveragePowerSpectralDensityReport(), ns3::AnimationInterface::WriteDummyPacket(), Ns3TcpStateTestCase::WriteUntilBufferFull(), and Ns3TcpLossTestCase::WriteUntilBufferFull().

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int64_t ns3::Time::GetTimeStep ( void  ) const

inline

Returns

the raw time value, in the current units

Definition at line 354 of file nstime.h.

References m_data.

Referenced by ns3::LrWpanPhy::EndEd(), ns3::LrWpanPhy::EndRx(), GetInteger(), ns3::Radvd::HandleRead(), ns3::DistributedSimulatorImpl::NextTs(), ns3::OmnetDataOutput::OmnetOutputCallback::OutputSingleton(), ns3::SqliteDataOutput::SqliteOutputCallback::OutputSingleton(), ns3::RealtimeSimulatorImpl::ProcessOneEvent(), ns3::DefaultSimulatorImpl::Schedule(), ns3::NullMessageSimulatorImpl::Schedule(), ns3::RealtimeSimulatorImpl::Schedule(), ns3::DistributedSimulatorImpl::Schedule(), ns3::RealtimeSimulatorImpl::ScheduleRealtimeWithContext(), ns3::DefaultSimulatorImpl::ScheduleWithContext(), ns3::NullMessageSimulatorImpl::ScheduleWithContext(), ns3::RealtimeSimulatorImpl::ScheduleWithContext(), ns3::DistributedSimulatorImpl::ScheduleWithContext(), ns3::NullMessageMpiInterface::SendNullMessage(), ns3::GrantedTimeWindowMpiInterface::SendPacket(), ns3::NullMessageMpiInterface::SendPacket(), ns3::LrWpanPhy::StartRx(), ns3::DefaultSimulatorImpl::Stop(), ns3::NullMessageSimulatorImpl::Stop(), and ns3::DistributedSimulatorImpl::Stop().

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double ns3::Time::GetYears ( void  ) const

inline

Returns

an approximation in years of the time stored in this instance.

Definition at line 346 of file nstime.h.

References ToDouble(), and Y.

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bool ns3::Time::IsNegative ( void  ) const

inline

Returns

true if the time is negative or zero, false otherwise.

Definition at line 235 of file nstime.h.

References m_data.

bool ns3::Time::IsPositive ( void  ) const

inline

Returns

true if the time is positive or zero, false otherwise.

Definition at line 242 of file nstime.h.

References m_data.

Referenced by ns3::DefaultSimulatorImpl::Schedule(), and ns3::RealtimeSimulatorImpl::Schedule().

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bool ns3::Time::IsStrictlyNegative ( void  ) const

inline

Returns

true if the time is strictly negative, false otherwise.

Definition at line 249 of file nstime.h.

References m_data.

bool ns3::Time::IsStrictlyPositive ( void  ) const

inline

Returns

true if the time is strictly positive, false otherwise.

Definition at line 256 of file nstime.h.

References m_data.

bool ns3::Time::IsZero ( void  ) const

inline

Returns

true if the time is zero, false otherwise.

Definition at line 228 of file nstime.h.

References m_data.

Referenced by main(), and ns3::YansWifiPhy::StartReceivePacket().

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void ns3::Time::Mark ( Time *const  time )

staticprivate

Record a Time instance with the MarkedTimes.

Definition at line 283 of file time.cc.

References g_markingTimes, GetMarkingMutex(), NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_LOGIC, and NS_LOG_WARN.

Referenced by Time().

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static Time ns3::Time::Max ( )

inlinestatic

Maximum representable Time.

Definition at line 209 of file nstime.h.

References Time().

Referenced by ns3::MakeTimeChecker().

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static Time ns3::Time::Min ( )

inlinestatic

Minimum representable Time.

Definition at line 202 of file nstime.h.

References Time().

Referenced by ns3::MakeTimeChecker().

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ns3::Time::operator int64x64_t ( ) const

inline

Definition at line 476 of file nstime.h.

References m_data.

Time& ns3::Time::operator= ( const Time &  o )

inline

Definition at line 100 of file nstime.h.

References m_data.

static struct Information* ns3::Time::PeekInformation ( enum Unit  timeUnit )

inlinestaticprivate

Definition at line 533 of file nstime.h.

References ns3::Time::Resolution::info, and PeekResolution().

Referenced by From(), FromInteger(), To(), and ToInteger().

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static struct Resolution* ns3::Time::PeekResolution ( void  )

inlinestaticprivate

Definition at line 528 of file nstime.h.

References SetDefaultNsResolution().

Referenced by GetResolution(), PeekInformation(), and SetResolution().

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struct Time::Resolution ns3::Time::SetDefaultNsResolution ( void  )

staticprivate

Definition at line 166 of file time.cc.

References NS, NS_LOG_FUNCTION_NOARGS, and SetResolution().

Referenced by PeekResolution().

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void ns3::Time::SetResolution ( enum Unit  resolution )

static

Parameters

resolution

the new resolution to use

Change the global resolution used to convert all user-provided time values in Time objects and Time objects in user-expected time units.

Definition at line 176 of file time.cc.

References NS_LOG_FUNCTION, and PeekResolution().

Referenced by main(), and SetDefaultNsResolution().

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void ns3::Time::SetResolution ( enum Unit  unit, struct Resolution *  resolution, const bool  convert = true  )

staticprivate

Definition at line 185 of file time.cc.

References ConvertTimes(), ns3::Time::Information::factor, ns3::Time::Information::fromMul, ns3::Time::Resolution::info, ns3::int64x64_t::Invert(), LAST, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Time::Information::timeFrom, ns3::Time::Information::timeTo, ns3::Time::Information::toMul, and ns3::Time::Resolution::unit.

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bool ns3::Time::StaticInit ( )

static

Function to force static initialization of Time.

Definition at line 59 of file time.cc.

References g_markingTimes, GetMarkingMutex(), and NS_LOG_ERROR.

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int64x64_t ns3::Time::To ( enum Unit  timeUnit ) const

inline

Definition at line 462 of file nstime.h.

References m_data, ns3::int64x64_t::MulByInvert(), PeekInformation(), ns3::Time::Information::timeTo, and ns3::Time::Information::toMul.

Referenced by ns3::OnOffApplication::CancelEvents(), ns3::operator<<(), and ToDouble().

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double ns3::Time::ToDouble ( enum Unit  timeUnit ) const

inline

Parameters

timeUnit

the unit of the value to return

Returns

double time value

Convert the input time into a floating point value according to the requested time unit.

Definition at line 442 of file nstime.h.

References ns3::int64x64_t::GetDouble(), and To().

Referenced by GetDays(), GetHours(), GetMinutes(), GetSeconds(), GetYears(), and ns3::RttMeanDeviation::Measurement().

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int64_t ns3::Time::ToInteger ( enum Unit  timeUnit ) const

inline

Parameters

timeUnit

the unit of the value to return

Returns

int64_t time value

Convert the input time into an integer value according to the requested time unit.

Definition at line 410 of file nstime.h.

References ns3::Time::Information::factor, m_data, PeekInformation(), and ns3::Time::Information::toMul.

Referenced by ConvertTimes(), GetFemtoSeconds(), GetMicroSeconds(), GetMilliSeconds(), GetNanoSeconds(), GetPicoSeconds(), and ns3::RttMeanDeviation::RetransmitTimeout().

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Friends And Related Function Documentation

Time Abs ( const Time &  time )

friend

Absolute value function for Time.

Parameters

time	the input value

Returns

the absolute value of the input value.

Definition at line 737 of file nstime.h.

Time Days ( double  days )

related

create ns3::Time instances in units of days (equal to 24 hours).

For example:

Time t = Days (2.0);
Simulator::Schedule (Days (5.0), ...);

Parameters

days	days value

Definition at line 895 of file nstime.h.

References D, and FromDouble().

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Time Days ( int64x64_t  days )

related

See also

Minutes(uint64_t)

Definition at line 983 of file nstime.h.

References D, and From().

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Time FemtoSeconds ( uint64_t  fs )

related

create ns3::Time instances in units of femtoseconds.

For example:

Time t = FemtoSeconds (2);
Simulator::Schedule (FemtoSeconds (5), ...);

Parameters

fs	femtoseconds value

Definition at line 850 of file nstime.h.

References FromInteger(), and FS.

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Time FemtoSeconds ( int64x64_t  fs )

related

See also

FemtoSeconds(uint64_t)

Definition at line 959 of file nstime.h.

References From(), and FS.

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SystemMutex & GetMarkingMutex ( )

related

Internal:

Get mutex for critical sections around modification of Time::g_markingTimes

Definition at line 50 of file time.cc.

Referenced by Clear(), ClearMarkedTimes(), ConvertTimes(), Mark(), and StaticInit().

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Time Hours ( double  hours )

related

create ns3::Time instances in units of hours (equal to 60 minutes).

For example:

Time t = Hours (2.0);
Simulator::Schedule (Hours (5.0), ...);

Parameters

hours

hours value

Definition at line 880 of file nstime.h.

References FromDouble(), and H.

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Time Hours ( int64x64_t  hours )

related

See also

Minutes(uint64_t)

Definition at line 975 of file nstime.h.

References From(), and H.

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Time Max ( const Time &  ta, const Time &  tb  )

friend

Max function for Time.

Parameters

ta	the first value
tb	the seconds value

Returns

the max of the two input values.

Definition at line 717 of file nstime.h.

Time MicroSeconds ( uint64_t  us )

related

create ns3::Time instances in units of microseconds.

For example:

Time t = MicroSeconds (2);
Simulator::Schedule (MicroSeconds (5), ...);

Parameters

us	microseconds value

Definition at line 805 of file nstime.h.

References FromInteger(), and US.

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Time MicroSeconds ( int64x64_t  us )

related

See also

MicroSeconds(uint64_t)

Definition at line 935 of file nstime.h.

References From(), and US.

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Time MilliSeconds ( uint64_t  ms )

related

create ns3::Time instances in units of milliseconds.

For example:

Time t = MilliSeconds (2);
Simulator::Schedule (MilliSeconds (5), ...);

Parameters

ms	milliseconds value

Definition at line 790 of file nstime.h.

References FromInteger(), and MS.

Referenced by main(), and operator<<().

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Time MilliSeconds ( int64x64_t  ms )

related

See also

MilliSeconds(uint64_t)

Definition at line 927 of file nstime.h.

References From(), and MS.

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Time Min ( const Time &  ta, const Time &  tb  )

friend

Min function for Time.

Parameters

ta	the first value
tb	the seconds value

Returns

the min of the two input values.

Definition at line 727 of file nstime.h.

Time Minutes ( double  minutes )

related

create ns3::Time instances in units of minutes (equal to 60 seconds).

For example:

Time t = Minutes (2.0);
Simulator::Schedule (Minutes (5.0), ...);

Parameters

minutes

mintues value

Definition at line 865 of file nstime.h.

References FromDouble(), and MIN.

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Time Minutes ( int64x64_t  minutes )

related

See also

Minutes(uint64_t)

Definition at line 967 of file nstime.h.

References From(), and MIN.

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Time NanoSeconds ( uint64_t  ns )

related

create ns3::Time instances in units of nanoseconds.

For example:

Time t = NanoSeconds (2);
Simulator::Schedule (NanoSeconds (5), ...);

Parameters

ns	nanoseconds value

Definition at line 820 of file nstime.h.

References FromInteger(), and NS.

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Time NanoSeconds ( int64x64_t  ns )

related

See also

NanoSeconds(uint64_t)

Definition at line 943 of file nstime.h.

References From(), and NS.

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bool operator!= ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 641 of file nstime.h.

Time operator* ( const Time &  lhs, const int64_t &  rhs  )

friend

Definition at line 674 of file nstime.h.

Time operator* ( const int64_t &  lhs, const Time &  rhs  )

friend

Definition at line 681 of file nstime.h.

Time operator+ ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 665 of file nstime.h.

Time& operator+= ( Time &  lhs, const Time &  rhs  )

friend

Definition at line 700 of file nstime.h.

Time operator- ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 669 of file nstime.h.

Time& operator-= ( Time &  lhs, const Time &  rhs  )

friend

Definition at line 705 of file nstime.h.

int64_t operator/ ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 688 of file nstime.h.

Time operator/ ( const Time &  lhs, const int64_t &  rhs  )

friend

Definition at line 694 of file nstime.h.

bool operator< ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 656 of file nstime.h.

std::ostream & operator<< ( std::ostream &  os, const Time &  time  )

related

Time output streamer.

Generates output such as "3.96ns". Times are printed with the following format flags (independent of the stream flags):

• showpos
• fixed
• left The stream width and precision are ignored; Time output always includes ".0".

Definition at line 391 of file time.cc.

bool operator<= ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 646 of file nstime.h.

bool operator== ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 636 of file nstime.h.

bool operator> ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 661 of file nstime.h.

bool operator>= ( const Time &  lhs, const Time &  rhs  )

friend

Definition at line 651 of file nstime.h.

std::istream & operator>> ( std::istream &  is, Time &  time  )

related

Time input streamer.

Uses the Time::Time (const std::string &) constructor

Definition at line 430 of file time.cc.

Time PicoSeconds ( uint64_t  ps )

related

create ns3::Time instances in units of picoseconds.

For example:

Time t = PicoSeconds (2);
Simulator::Schedule (PicoSeconds (5), ...);

Parameters

ps	picoseconds value

Definition at line 835 of file nstime.h.

References FromInteger(), and PS.

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Time PicoSeconds ( int64x64_t  ps )

related

See also

PicoSeconds(uint64_t)

Definition at line 951 of file nstime.h.

References From(), and PS.

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Time Seconds ( double  seconds )

related

create ns3::Time instances in units of seconds.

For example:

Time t = Seconds (2.0);
Simulator::Schedule (Seconds (5.0), ...);

Parameters

seconds

seconds value

Definition at line 774 of file nstime.h.

References FromDouble(), and S.

Referenced by AttributeTestCase< T >::DoRun(), and main().

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Time Seconds ( int64x64_t  seconds )

related

See also

Seconds(double)

Definition at line 919 of file nstime.h.

References From(), and S.

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friend class Simulator

friend

Definition at line 587 of file nstime.h.

Time Years ( double  years )

related

create ns3::Time instances in units of years (equal to 365 days).

For example:

Time t = Years (2.0);
Simulator::Schedule (Years (5.0), ...);

Parameters

years

years value

Definition at line 910 of file nstime.h.

References FromDouble(), and Y.

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Time Years ( int64x64_t  years )

related

See also

Minutes(uint64_t)

Definition at line 991 of file nstime.h.

References From(), and Y.

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Member Data Documentation

Time::MarkedTimes * ns3::Time::g_markingTimes = 0

staticprivate

Record of outstanding Time objects which will need conversion when the resolution is set.

Internal:

Use a classic static variable so we can check in Time ctors without a function call.

We'd really like to initialize this here, but we don't want to require C++0x, so we init in time.cc. To ensure that happens before first use, we add a call to StaticInit (below) to every compilation unit which includes nstime.h.

Definition at line 576 of file nstime.h.

Referenced by Clear(), ClearMarkedTimes(), ConvertTimes(), Mark(), StaticInit(), Time(), and ~Time().

int64_t ns3::Time::m_data

private

Virtual time value, in the current unit.

Definition at line 627 of file nstime.h.

Referenced by ns3::Abs(), Compare(), ConvertTimes(), GetDouble(), GetTimeStep(), IsNegative(), IsPositive(), IsStrictlyNegative(), IsStrictlyPositive(), IsZero(), ns3::Max(), ns3::Min(), operator int64x64_t(), ns3::operator!=(), ns3::operator*(), ns3::operator+(), ns3::operator+=(), ns3::operator-(), ns3::operator-=(), ns3::operator/(), ns3::operator<(), ns3::operator<=(), operator=(), ns3::operator==(), ns3::operator>(), ns3::operator>=(), To(), and ToInteger().

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The documentation for this class was generated from the following files:

• src/core/model/nstime.h
• src/core/model/time.cc