timespec.h File Reference

Sleeping and getting the current time. More...

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Functions
void	nmsg_timespec_get (struct timespec *ts)
	Get the current time.
void	nmsg_timespec_sleep (const struct timespec *ts)
	Sleep.
void	nmsg_timespec_add (const struct timespec *a, struct timespec *b)
	Add timespecs a and b, placing result in b.
void	nmsg_timespec_sub (const struct timespec *a, struct timespec *b)
	Subtract timespec a from b, placing result in b.
double	nmsg_timespec_to_double (const struct timespec *ts)
	Convert timespec to floating point representation.
void	nmsg_timespec_from_double (double seconds, struct timespec *ts)
	Convert floating point number of seconds to timespec.

Detailed Description

Sleeping and getting the current time.

Definition in file timespec.h.

Function Documentation

nmsg_timespec_get()

void nmsg_timespec_get

(

struct timespec *

ts

)

Get the current time.

If available, clock_gettime() will be used to attempt to get the current real time. If unavailable, gettimeofday() will be used and scaled up to nanosecond precision.

Parameters

[out]

ts

current time.

nmsg_timespec_sleep()

void nmsg_timespec_sleep

(

const struct timespec *

ts

)

Sleep.

nanosleep() will be called, and reinvoked if interrupted.

Parameters

[in]

ts

duration to sleep.

nmsg_timespec_add()

void nmsg_timespec_add	(	const struct timespec *	a,
		struct timespec *	b
	)

Add timespecs a and b, placing result in b.

(b = b + a).

Parameters

[in]	a
[in,out]	b

nmsg_timespec_sub()

void nmsg_timespec_sub	(	const struct timespec *	a,
		struct timespec *	b
	)

Subtract timespec a from b, placing result in b.

(b = b - a).

Parameters

[in]	a
[in,out]	b

nmsg_timespec_to_double()

double nmsg_timespec_to_double

(

const struct timespec *

ts

)

Convert timespec to floating point representation.

Parameters

[in]

ts

Returns

Floating point number of seconds.

nmsg_timespec_from_double()

void nmsg_timespec_from_double	(	double	seconds,
		struct timespec *	ts
	)

Convert floating point number of seconds to timespec.

Parameters

[in]	seconds	Floating point number of seconds.
[out]	ts