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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)

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