timeutils.c File Reference

#include "timeutils.h"
#include <flexptp_options.h>

Go to the source code of this file.

Functions
TimestampI *	tsUToI (TimestampI *ti, const TimestampU *tu)
TimestampI *	addTime (TimestampI *r, const TimestampI *a, const TimestampI *b)
TimestampI *	subTime (TimestampI *r, const TimestampI *a, const TimestampI *b)
TimestampI *	divTime (TimestampI *r, const TimestampI *a, int divisor)
uint64_t	nsU (const TimestampU *t)
int64_t	nsI (const TimestampI *t)
void	normTime (TimestampI *t)
int64_t	tsToTick (const TimestampI *ts, uint32_t tps)
TimestampI *	nsToTsI (TimestampI *r, int64_t ns)
bool	nonZeroI (const TimestampI *a)
void	tsPrint (char *str, const TimestampI *ts)

Variables
static unsigned	FIRST_DAY_OF_MONTH [] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }

Function Documentation

addTime()

TimestampI * addTime	(	TimestampI *	r,
		const TimestampI *	a,
		const TimestampI *	b
	)

Add up timestamps. r = a + b;

Parameters

r	result
a	first operand
b	second operand

Returns

r

Definition at line 16 of file timeutils.c.

divTime()

TimestampI * divTime	(	TimestampI *	r,
		const TimestampI *	a,
		int	divisor
	)

Divide (inversely scale) a time value by an integer.

Parameters

r	pointer to the result field
a	dividend
divisor	divisor

Returns

r

Definition at line 31 of file timeutils.c.

nonZeroI()

bool nonZeroI

(

const TimestampI *

a

)

Does the timestamp differ from zero?

Parameters

a

timestamp

Returns

a != 0

Definition at line 67 of file timeutils.c.

normTime()

void normTime

(

TimestampI *

t

)

Normalize time. Move whole seconds from the nanoseconds field to the seconds.

Parameters

t	Time. It will be overwritten.

Definition at line 49 of file timeutils.c.

nsI()

int64_t nsI

(

const TimestampI *

t

)

Convert signed time into nanoseconds.

Parameters

t

time

Returns

time in nanoseconds

Definition at line 44 of file timeutils.c.

nsToTsI()

TimestampI * nsToTsI	(	TimestampI *	r,
		int64_t	ns
	)

Convert nanoseconds to time.

Parameters

r	results
ns	time in nanoseconds

Returns

r

Definition at line 61 of file timeutils.c.

nsU()

uint64_t nsU

(

const TimestampU *

t

)

Convert unsigned time into nanoseconds.

Parameters

t

time

Returns

time in nanoseconds

Definition at line 39 of file timeutils.c.

subTime()

TimestampI * subTime	(	TimestampI *	r,
		const TimestampI *	a,
		const TimestampI *	b
	)

Substract timestamps. r = a - b;

Parameters

r	result
a	first operand
b	second operand

Returns

r

Definition at line 24 of file timeutils.c.

tsPrint()

void tsPrint	(	char *	str,
		const TimestampI *	ts
	)

Print datetime to string.

Parameters

str	destination area, must provide at least 20 consecutive bytes!
ts	pointer to timestamp object holding the time value

Definition at line 73 of file timeutils.c.

tsToTick()

int64_t tsToTick	(	const TimestampI *	ts,
		uint32_t	tps
	)

Convert duration (~time value) to hardware ticks.

Parameters

ts	time
tps	ticks per second

Returns

duration in ticks (rounded to floor during division)

Definition at line 55 of file timeutils.c.

tsUToI()

TimestampI * tsUToI	(	TimestampI *	ti,
		const TimestampU *	tu
	)

Convert unsigned timestamp to signed.

Parameters

ti	destination (signed) timestamp
tu	source (unsigned) timestamp

Definition at line 8 of file timeutils.c.

Variable Documentation

FIRST_DAY_OF_MONTH

unsigned FIRST_DAY_OF_MONTH[] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }

static

Definition at line 71 of file timeutils.c.