Click this button to go to the index for this section.

clock_getres(3)
NAME
  clock_getres - Get the resolution for the specified clock (P1003.1b)

SYNOPSIS
  #include <time.h>

  int clock_getres (
  clockid_t clock_id,
  struct timespec *res);

PARAMETERS
  clock_id    The clock type used to obtain the resolution.  The
	      CLOCK_REALTIME clock is supported and represents the TIME-OF-
	      DAY clock for the system.

  *res	      A pointer to the timespec data structure that receives the
	      value of the clock's resolution.

DESCRIPTION
  The clock_getres function returns the resolution value for the specified
  clock.  If the res argument is NULL, the clock resolution is not returned.

RETURN VALUES
  On a successful call, a value of 0 is returned.

  On an unsuccessful call, a value of -1 is returned and errno is set to
  indicate that an error occurred.

ERRORS
  The clock_getres function fails under the following condition:

  [EINVAL]	 The clock_id argument does not specify a known clock.

RELATED INFORMATION
  Functions: time(1), ctime(3), timer_settime(3)