Timestamp Utilities

Timestamp and time format conversion functions. More...

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Macros
#define	TSTAMP_MIN_HEXSIZE   17
	minimum buffer size for hex format
#define	TSTAMP_MIN_SIZE   29
	normal minimum buffer size for a tstamp buffer More...
#define	TSTAMP_DATE_SIZE   12
	minimum buffer size for just a date string This value MUST be the minimum size buffer used for the tstamp_datetime and tstamp_local_datetime functions
#define	TSTAMP_SQL_SIZE   20
	minimum buffer size for SQL date format string
#define	TSTAMP_HTML_SIZE   50
	minimum buffer size for HTML format string

Functions
void	tstamp_datetime (xmlChar *buff)
	Set the current date and time in an XML dateTime string format. More...
void	tstamp_highres_datetime (xmlChar *buff)
	Set the current date and time in an XML dateTime string format using highres format. More...
void	tstamp_local_datetime (xmlChar *buff)
	Set the current date and time in an XML dateTime string format. More...
void	tstamp_local_highres_datetime (xmlChar *buff)
	Set the current date and time in an XML dateTime string format using highres format. More...
void	tstamp_date (xmlChar *buff)
	Set the current date in an XML dateTime string format. More...
void	tstamp_datetime_sql (xmlChar *buff)
	Set the current date and time in an XML dateTime string format. More...
xmlChar *	tstamp_convert_to_utctime (const xmlChar *timestr, boolean *isNegative, status_t *res)
	Check if the specified string is a valid dateTime or date-and-time string is valid and if so, convert it to UTC time. More...
void	tstamp_datetime_dirname (xmlChar *buff)
	Set the current date and time in an XML dateTime string format. More...
void	tstamp_time2datetime (time_t *timerec, xmlChar *buff)
	Convert the specified time_t to a YANG data-and-time format. More...
status_t	tstamp_time2htmltime (time_t *timerec, xmlChar *buff, size_t buffsize)
	Convert the specified time_t to a HTML timestamp string. More...
status_t	tstamp_htmltime2time (const xmlChar *timestr, time_t *timerec)
	Convert the specified HTML timestamp string to time_t format. More...
int32	tstamp_difftime (time_t *time1, time_t *time2)
	Compare 2 time_t structs. More...
void	tstamp_now (time_t *tim)
	Set the time_t to the current time. More...
long int	tstamp_diff (struct timeval *start_time, struct timeval *end_time, long int *usec)
	Get the elapsed time between two timeval structs. More...
void	tstamp_time2hex (time_t *tim, xmlChar *buf)
	Convert the time_t to a string of hex digits. More...
time_t	tstamp_cvt_TIME (char const *time_str)
	Convert the DATE string to a time_t. More...
void	tstamp_highres_timenow (struct timespec *ts)
	Get the current time using a high res timestamp. More...

Detailed Description

Timestamp and time format conversion functions.

NETCONF, YANG, and RESTCONF all use different date and time formats requiring conversions between them. Includes high resolution timers and monotonic clock support.

Macro Definition Documentation

TSTAMP_MIN_SIZE

#define TSTAMP_MIN_SIZE   29

normal minimum buffer size for a tstamp buffer

NOTE: THIS VALUE HAS BEEN INCREASED TO HANDLE MICROSECONDS THE OLD VALUE OF 22 IS TOO SMALL FOR A HIGHRES TIMESTAMP

Function Documentation

tstamp_convert_to_utctime()

xmlChar * tstamp_convert_to_utctime	(	const xmlChar *	timestr,
		boolean *	isNegative,
		status_t *	res
	)

Check if the specified string is a valid dateTime or date-and-time string is valid and if so, convert it to UTC time.

Parameters

	timestr	pointer to buffer to check
[out]	isNegative	address of return negative date flag *isNegative TRUE if a negative dateTime string is given FALSE if no starting '-' sign found
[out]	res	address of return status *res return status

Returns

malloced pointer to converted date time string or NULL if some error

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tstamp_cvt_TIME()

time_t tstamp_cvt_TIME

(

char const *

time_str

)

Convert the DATE string to a time_t.

From StackOverflow https://stackoverflow.com/questions/1765014/convert-string-from-date-into-a-time-t

Parameters

time_str

DATE string

Returns

time_t format

tstamp_date()

void tstamp_date

(

xmlChar *

buff

)

Set the current date in an XML dateTime string format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 11 CHARS buff is filled in

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tstamp_datetime()

void tstamp_datetime

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format.

Parameters

[out]

buff

pointer to buffer to hold output MUST BE AT LEAST 21 CHARS buff is filled in

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tstamp_datetime_dirname()

void tstamp_datetime_dirname

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 21 CHARS buff is filled in

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tstamp_datetime_sql()

void tstamp_datetime_sql

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 20 CHARS buff is filled in

tstamp_diff()

long int tstamp_diff	(	struct timeval *	start_time,
		struct timeval *	end_time,
		long int *	usec
	)

Get the elapsed time between two timeval structs.

Parameters

	start_time	start timestamp
	end_time	finish timestamp
[out]	usec	address of return micro seconds *usec number of micro-seconds of elapsed time

Returns

number of seconds of elapsed time

tstamp_difftime()

int32 tstamp_difftime	(	time_t *	time1,
		time_t *	time2
	)

Compare 2 time_t structs.

Parameters

time1	time struct 1
time2	time struct 2

Returns

compare value

    -1 if time1 < time2
     0 if time1 == time2
     1 if time1 > time2

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tstamp_highres_datetime()

void tstamp_highres_datetime

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format using highres format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 29 CHARS (TSTAMP_MIN_SIZE) buff is filled in

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tstamp_highres_timenow()

void tstamp_highres_timenow

(

struct timespec *

ts

)

Get the current time using a high res timestamp.

If the make flags and system support it then the CLOCK_MONOTONIC highres clock will be used. If not then the CLOCK_REALTIME clock will be used

Parameters

[out]

ts

timeres struct to fill in *ts is filled in

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tstamp_htmltime2time()

status_t tstamp_htmltime2time	(	const xmlChar *	timestr,
		time_t *	timerec
	)

Convert the specified HTML timestamp string to time_t format.

Parameters

	timestr	timestamp string to convert
[out]	timerec	address of return time_t struct *timerec struct is filled in if NO_ERR

Returns

status

tstamp_local_datetime()

void tstamp_local_datetime

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 21 CHARS buff is filled in

tstamp_local_highres_datetime()

void tstamp_local_highres_datetime

(

xmlChar *

buff

)

Set the current date and time in an XML dateTime string format using highres format.

Parameters

[in,out]

buff

pointer to buffer to hold output MUST BE AT LEAST 29 CHARS (TSTAMP_MIN_SIZE) buff is filled in

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tstamp_now()

void tstamp_now

(

time_t *

tim

)

Set the time_t to the current time.

Parameters

[out]

tim

address of time_t to set *tim is set

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tstamp_time2datetime()

void tstamp_time2datetime	(	time_t *	timerec,
		xmlChar *	buff
	)

Convert the specified time_t to a YANG data-and-time format.

Parameters

	timerec	pointer to time_t to convert
[in,out]	buff	pointer to buffer to hold output MUST BE AT LEAST 21 CHARS buff is filled in

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tstamp_time2hex()

void tstamp_time2hex	(	time_t *	tim,
		xmlChar *	buf
	)

Convert the time_t to a string of hex digits.

Parameters

	tim	address of time_t to use
[in,out]	buf	buffer to fill in (MUST be at least 17 chars long) TSTAMP_MIN_HEXSIZE buf is set to time_t converted to hex string

tstamp_time2htmltime()

status_t tstamp_time2htmltime	(	time_t *	timerec,
		xmlChar *	buff,
		size_t	buffsize
	)

Convert the specified time_t to a HTML timestamp string.

Parameters

	timerec	pointer to time_t to convert
[in,out]	buff	pointer to buffer to hold output MUST BE AT LEAST 40 CHARS buff is filled in
	buffsize	size of buff

Returns

status