kudu::MonoTime Class Reference

Representation of a particular point in time. More...

#include <monotime.h>

Public Member Functions
	MonoTime () KUDU_MONOTIME_NOEXCEPT
bool	Initialized () const
MonoDelta	GetDeltaSince (const MonoTime &rhs) const
void	AddDelta (const MonoDelta &delta)
bool	ComesBefore (const MonoTime &rhs) const
std::string	ToString () const
void	ToTimeSpec (struct timespec *ts) const
bool	Equals (const MonoTime &other) const
Syntactic sugar: increment/decrement operators for MonoTime.
MonoTime &	operator+= (const MonoDelta &delta)
MonoTime &	operator-= (const MonoDelta &delta)

Static Public Member Functions
static MonoTime	Now ()
static MonoTime	Max ()
static MonoTime	Min ()
static const MonoTime &	Earliest (const MonoTime &a, const MonoTime &b)

Static Public Attributes
Conversion constants for ubiquitous time units.
static const int64_t	kNanosecondsPerSecond = 1000000000L
	Nanoseconds per second.
static const int64_t	kNanosecondsPerMillisecond = 1000000L
	Nanoseconds per millisecond.
static const int64_t	kNanosecondsPerMicrosecond = 1000L
	Nanoseconds per microseconds.
static const int64_t	kMicrosecondsPerSecond = 1000000L
	Microseconds per second.

Detailed Description

Representation of a particular point in time.

The MonoTime class represents a particular point in time, relative to some fixed but unspecified reference point.

This time is monotonic, meaning that if the user changes his or her system clock, the monotime does not change.

Constructor & Destructor Documentation

MonoTime()

kudu::MonoTime::MonoTime

(

)

Build a MonoTime object. The resulting object is not initialized and not ready to use.

Member Function Documentation

AddDelta()

void kudu::MonoTime::AddDelta

(

const MonoDelta &

delta

)

Advance this object's time specification by the specified interval.

Parameters

[in]

delta

The time interval to add.

ComesBefore()

bool kudu::MonoTime::ComesBefore

(

const MonoTime &

rhs

)

const

Check whether the point in time specified by this object is earlier than the specified one.

Parameters

[in]

rhs

The other MonoTime object to compare with.

Returns

true iff the point in time represented by this MonoTime object is earlier then the point in time represented by the parameter.

Earliest()

static const MonoTime& kudu::MonoTime::Earliest ( const MonoTime &  a, const MonoTime &  b  )

static

Select the earliest between the specified time points.

Deprecated:

Use use std::min() instead.

Parameters

[in]	a	The first MonoTime object to select from.
[in]	b	The second MonoTime object to select from.

Returns

The earliest (minimum) of the two monotimes.

Equals()

bool kudu::MonoTime::Equals

(

const MonoTime &

other

)

const

Check whether this object represents the same point in time as the other.

Parameters

[in]

other

The other MonoTime object to compare.

Returns

true iff the point in time represented by this MonoTime object is the same as the one represented by the other.

GetDeltaSince()

MonoDelta kudu::MonoTime::GetDeltaSince

(

const MonoTime &

rhs

)

const

Compute time interval between the point in time specified by this and the specified object.

Deprecated:

Use kudu::operator-(const MonoTime&, const MonoTime&) instead.

Parameters

[in]

rhs

The object that corresponds to the left boundary of the time interval, where this object corresponds to the right boundary of the interval.

Returns

The resulting time interval represented as a MonoDelta object.

Initialized()

bool kudu::MonoTime::Initialized

(

)

const

Returns

true iff the object is initialized.

Max()

static MonoTime kudu::MonoTime::Max ( )

static

Returns

MonoTime equal to farthest possible time into the future.

Min()

static MonoTime kudu::MonoTime::Min ( )

static

Returns

MonoTime equal to farthest possible time into the past.

Now()

static MonoTime kudu::MonoTime::Now ( )

static

Get current time in MonoTime representation.

Returns

Time specification for the moment of the method's invocation.

operator+=()

MonoTime& kudu::MonoTime::operator+=

(

const MonoDelta &

delta

)

Add a delta to the point in time represented by the object.

Parameters

[in]

delta

The delta to add.

Returns

Reference to the modified object.

operator-=()

MonoTime& kudu::MonoTime::operator-=

(

const MonoDelta &

delta

)

Substract a delta from the point in time represented by the object.

Parameters

[in]

delta

The delta to substract.

Returns

Reference to the modified object.

ToString()

std::string kudu::MonoTime::ToString

(

)

const

Returns

String representation of the object (in seconds).

ToTimeSpec()

void kudu::MonoTime::ToTimeSpec

(

struct timespec *

ts

)

const

Represent this point in time as a timespec structure, with nanosecond accuracy.

Parameters

[out]

ts

Placeholder for the result value.

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

• include/kudu/util/monotime.h