atoms::Time Class Reference

#include <time.hh>

List of all members.

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Detailed Description

A high-precision absolute time suitable for POSIX realtime functions.

This supports values from epoch (1-Jan-1970 00:00:00Z) on at least 2038 (32-bit time_t) or much later (64-bit time_t), depending on the platform. It has nanosecond precision and supports a positive infinity time with the expected semantics.

Definition at line 31 of file time.hh.

Public Types
enum	InfinityTime { tINFINITY }
Public Member Functions
	Time (InfinityTime)
	Time (time_t seconds=0, long nanoseconds=0)
	Initializes with time since epoch (1-Jan-1970 00:00:00Z).
const Time &	operator= (InfinityTime)
void	setToCurrent ()
	Sets to the current system time with best available precision.
const struct timespec *	getTimespec () const
	Returns the internal representation, or NULL if infinity.
Static Public Attributes
const long	NANOSECS_PER_SEC = 1000000000
Private Attributes
timespec	ts
Friends
bool	operator< (const Time &, const Time &)
bool	operator== (const Time &, const Time &)
const Time &	operator+= (Time &, const Timespan &)
	Adds an interval to a time.

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Member Enumeration Documentation

enum atoms::Time::InfinityTime

Enumeration values: tINFINITY  Definition at line 37 of file time.hh.

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Constructor & Destructor Documentation

atoms::Time::Time (  InfinityTime   )  [inline]

Definition at line 39 of file time.hh. References std::numeric_limits< Type >::max(), NANOSECS_PER_SEC, and ts.

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atoms::Time::Time (  time_t  seconds = 0, long  nanoseconds = 0 )  [inline]

Initializes with time since epoch (1-Jan-1970 00:00:00Z). Precondition: 0 <= nanoseconds < 1e9 Definition at line 48 of file time.hh. References NANOSECS_PER_SEC, and ts.

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Member Function Documentation

const struct timespec* atoms::Time::getTimespec (   )  const [inline]

Returns the internal representation, or NULL if infinity. Used by functions which talk directly to the Unix API. Definition at line 76 of file time.hh. References NULL, and ts. Referenced by atoms::Condition::wait().

const Time& atoms::Time::operator= (  InfinityTime   )  [inline]

Definition at line 54 of file time.hh. References std::numeric_limits< Type >::max(), NANOSECS_PER_SEC, and ts.

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void atoms::Time::setToCurrent (   )  [inline]

Sets to the current system time with best available precision. Definition at line 61 of file time.hh. References NULL, and ts. Referenced by atoms::TimeoutDispatcher::main(), and atoms::TimeoutDispatcher::OperationMon::OperationMon().

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Friends And Related Function Documentation

const Time& operator+= (  Time &  t, const Timespan &  toadd )  [friend]

Adds an interval to a time. If the time is infinity, it will remain so; timespans are always non-negative, so they can not change its value. Definition at line 152 of file time.hh.

bool operator< (  const Time &  a, const Time &  b )  [friend]

Definition at line 87 of file time.hh.

bool operator== (  const Time &  a, const Time &  b )  [friend]

Definition at line 92 of file time.hh.

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Member Data Documentation

const long atoms::Time::NANOSECS_PER_SEC = 1000000000 [static]

Definition at line 81 of file time.hh. Referenced by operator=(), and Time().

struct timespec atoms::Time::ts [private]

Definition at line 84 of file time.hh. Referenced by getTimespec(), atoms::operator+=(), atoms::operator<(), operator=(), atoms::operator==(), setToCurrent(), and Time().

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

• atoms/time.hh

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