Integer Functions

Functions
NT_Bool	NT_SetInteger (NT_Handle pubentry, int64_t time, int64_t value)
	Publish a new value.
NT_Bool	NT_SetDefaultInteger (NT_Handle pubentry, int64_t defaultValue)
	Publish a default value.
int64_t	NT_GetInteger (NT_Handle subentry, int64_t defaultValue)
	Get the last published value.
void	NT_GetAtomicInteger (NT_Handle subentry, int64_t defaultValue, struct NT_TimestampedInteger *value)
	Get the last published value along with its timestamp.
void	NT_DisposeTimestampedInteger (struct NT_TimestampedInteger *value)
	Disposes a timestamped value (as returned by NT_GetAtomicInteger).
struct NT_TimestampedInteger *	NT_ReadQueueInteger (NT_Handle subentry, size_t *len)
	Get an array of all value changes since the last call to ReadQueue.
void	NT_FreeQueueInteger (struct NT_TimestampedInteger *arr, size_t len)
	Frees a timestamped array of values (as returned by NT_ReadQueueInteger).
int64_t *	NT_ReadQueueValuesInteger (NT_Handle subentry, size_t *len)
	Get an array of all value changes since the last call to ReadQueue.

Detailed Description

Function Documentation

NT_DisposeTimestampedInteger()

void NT_DisposeTimestampedInteger

(

struct NT_TimestampedInteger *

value

)

Disposes a timestamped value (as returned by NT_GetAtomicInteger).

Parameters

value

timestamped value

NT_FreeQueueInteger()

void NT_FreeQueueInteger	(	struct NT_TimestampedInteger *	arr,
		size_t	len )

Frees a timestamped array of values (as returned by NT_ReadQueueInteger).

Parameters

arr	array
len	length of array

NT_GetAtomicInteger()

void NT_GetAtomicInteger	(	NT_Handle	subentry,
		int64_t	defaultValue,
		struct NT_TimestampedInteger *	value )

Get the last published value along with its timestamp.

If no value has been published, returns the passed defaultValue and a timestamp of 0.

Parameters

subentry	subscriber or entry handle
defaultValue	default value to return if no value has been published
value	timestamped value (output)

NT_GetInteger()

int64_t NT_GetInteger	(	NT_Handle	subentry,
		int64_t	defaultValue )

Get the last published value.

If no value has been published, returns the passed defaultValue.

Parameters

subentry	subscriber or entry handle
defaultValue	default value to return if no value has been published

Returns

value

NT_ReadQueueInteger()

struct NT_TimestampedInteger * NT_ReadQueueInteger	(	NT_Handle	subentry,
		size_t *	len )

Get an array of all value changes since the last call to ReadQueue.

Also provides a timestamp for each value.

Note

The "poll storage" subscribe option can be used to set the queue depth.

Parameters

subentry	subscriber or entry handle
len	length of returned array (output)

Returns

Array of timestamped values; NULL if no new changes have been published since the previous call.

NT_ReadQueueValuesInteger()

int64_t * NT_ReadQueueValuesInteger	(	NT_Handle	subentry,
		size_t *	len )

Get an array of all value changes since the last call to ReadQueue.

Note

The "poll storage" subscribe option can be used to set the queue depth.

Parameters

subentry	subscriber or entry handle
len	length of returned array (output)

Returns

Array of values; NULL if no new changes have been published since the previous call.

NT_SetDefaultInteger()

NT_Bool NT_SetDefaultInteger	(	NT_Handle	pubentry,
		int64_t	defaultValue )

Publish a default value.

On reconnect, a default value will never be used in preference to a published value.

Parameters

pubentry	publisher or entry handle
defaultValue	default value

NT_SetInteger()

NT_Bool NT_SetInteger	(	NT_Handle	pubentry,
		int64_t	time,
		int64_t	value )

Publish a new value.

Parameters

pubentry	publisher or entry handle
time	timestamp; 0 indicates current NT time should be used
value	value to publish