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_is_zero (const struct DDS_Time_t *time)
	Check if time is zero.
DDS_Boolean	DDS_Time_is_invalid (const struct DDS_Time_t *time)
DDS_Boolean	DDS_Duration_is_infinite (const struct DDS_Duration_t *duration)
DDS_Boolean	DDS_Duration_is_auto (const struct DDS_Duration_t *duration)
DDS_Boolean	DDS_Duration_is_zero (const struct DDS_Duration_t *duration)

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_AUTO_SEC
	An auto second period of time.
const DDS_UnsignedLong	DDS_DURATION_AUTO_NSEC
	An auto nano-second period of time.
struct DDS_Duration_t	DDS_DURATION_AUTO
	Duration is automatically assigned.
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_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.

DDS_Boolean DDS_Time_is_invalid

(

const struct DDS_Time_t *

time

)

Returns

DDS_BOOLEAN_TRUE if the given time is not valid (i.e. is negative)

DDS_Boolean DDS_Duration_is_infinite

(

const struct DDS_Duration_t *

duration

)

Returns

DDS_BOOLEAN_TRUE if the given duration is of infinite length.

DDS_Boolean DDS_Duration_is_auto

(

const struct DDS_Duration_t *

duration

)

Returns

DDS_BOOLEAN_TRUE if the given duration has auto value.

DDS_Boolean DDS_Duration_is_zero

(

const struct DDS_Duration_t *

duration

)

Returns

DDS_BOOLEAN_TRUE if the given duration is of zero length.

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_AUTO_SEC

An auto second period of time.

const DDS_UnsignedLong DDS_DURATION_AUTO_NSEC

An auto nano-second period of time.

struct DDS_Duration_t DDS_DURATION_AUTO

Duration is automatically assigned.

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.