time.h File Reference

Time header. More...

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Data Structures
struct	tm

Macros
#define	NUM_SECONDS_IN_MIN   (60)
#define	NUM_MILLIS_IN_SEC   (1000)
#define	NUM_NANOS_IN_USEC   (1000)
#define	NUM_NANOS_IN_MILLI   (1000000L)
#define	NUM_NANOS_IN_SEC   (1000000000ULL)

Functions
int	nanosleep (const struct timespec *req, struct timespec *rem)
	nanosleep() suspends the execution of the calling thread until either at least the time specified in *req has elapsed, or the delivery of a signal that triggers the invocation of a handler in the calling thread or that terminates the process. If the call is interrupted by a signal handler, nanosleep() returns -1, sets errno to EINTR, and writes the remaining time into the structure pointed to by rem unless rem is NULL. The value of *req can then be used to call nanosleep() again and complete the specified pause. More...
int	clock_gettime (clockid_t clk_id, struct timespec *ts)
	The function retrieves the time of the specified clock clk_id. This function is non-blocking, except CLOCK_REE case. In this case function can sleep and can be interrupted with -1 result and EINTR errno. More...
time_t	time (time_t *time)
	Get the current calendar time as a value of type time_t. More...
unsigned int	arm_timer_get_frequency (void)
	The function retrieves the frequency of ARM timer. More...
void	timeadd (const struct timespec *a, const struct timespec *b, struct timespec *res)
	The function adds two dates. More...
void	timesub (const struct timespec *a, const struct timespec *b, struct timespec *res)
	The function subtracts two dates. More...
int64_t	timespec_to_ms (const struct timespec *a)
	The function converts time from timespec format to milliseconds. More...
uint64_t	timespec_to_nsec (const struct timespec *a)
	The function converts time from timespec format to nanoseconds. More...
void	ms_to_timespec (int64_t t, struct timespec *a)
	The function converts time in milliseconds to to timespec format. More...

Detailed Description

Time header.

Copyright

(C) 2012-2019, Samsung Electronics Co., Ltd.