Time Support

Time and duration types and defines. More...

Data Structures
struct	DDS_Time_t
	Type for time representation. More...
struct	DDS_Duration_t
	Type for duration representation. More...

Macros
#define	DDS_TIME_ZERO
	The default instant in time: zero seconds and zero nanoseconds.

Functions
DDS_Boolean	DDS_Time_greater_than (const struct DDS_Time_t *l, const struct DDS_Time_t *r)
DDS_Boolean	DDS_Time_is_zero (const struct DDS_Time_t *time)
	Check if time is zero.

Variables
const DDS_Long	DDS_TIME_INVALID_SEC
	A sentinel indicating an invalid second of time.
const DDS_UnsignedLong	DDS_TIME_INVALID_NSEC
	A sentinel indicating an invalid nano-second of time.
struct DDS_Time_t	DDS_TIME_INVALID
	A sentinel indicating an invalid time.
const DDS_Long	DDS_DURATION_INFINITE_SEC
	An infinite second period of time.
const DDS_UnsignedLong	DDS_DURATION_INFINITE_NSEC
	An infinite nano-second period of time.
struct DDS_Duration_t	DDS_DURATION_INFINITE
	An infinite period of time.
const DDS_Long	DDS_DURATION_ZERO_SEC
	A zero-length second period of time.
const DDS_UnsignedLong	DDS_DURATION_ZERO_NSEC
	A zero-length nano-second period of time.
struct DDS_Duration_t	DDS_DURATION_ZERO
	A zero-length period of time.

---

Detailed Description

Time and duration types and defines.

---

Macro Definition Documentation

#define DDS_TIME_ZERO

The default instant in time: zero seconds and zero nanoseconds.

---

Function Documentation

DDS_Boolean DDS_Time_greater_than	(	const struct DDS_Time_t *	l,
		const struct DDS_Time_t *	r
	)

Returns:

DDS_BOOLEAN_TRUE if the first time is greater than the second.

DDS_Boolean DDS_Time_is_zero

(

const struct DDS_Time_t *

time

)

Check if time is zero.

Returns:

DDS_BOOLEAN_TRUE if the given time is equal to DDS_TIME_ZERO or DDS_BOOLEAN_FALSE otherwise.

---

Variable Documentation

const DDS_Long DDS_TIME_INVALID_SEC

A sentinel indicating an invalid second of time.

const DDS_UnsignedLong DDS_TIME_INVALID_NSEC

A sentinel indicating an invalid nano-second of time.

struct DDS_Time_t DDS_TIME_INVALID

A sentinel indicating an invalid time.

const DDS_Long DDS_DURATION_INFINITE_SEC

An infinite second period of time.

const DDS_UnsignedLong DDS_DURATION_INFINITE_NSEC

An infinite nano-second period of time.

struct DDS_Duration_t DDS_DURATION_INFINITE

An infinite period of time.

const DDS_Long DDS_DURATION_ZERO_SEC

A zero-length second period of time.

const DDS_UnsignedLong DDS_DURATION_ZERO_NSEC

A zero-length nano-second period of time.

struct DDS_Duration_t DDS_DURATION_ZERO

A zero-length period of time.