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clock_getres(3) Library Functions Manual clock_getres(3) NAME
clock_getres - Gets the resolution for the specified clock (P1003.1b) LIBRARY
Realtime Library (librt.so, librt.a) 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 (zero) 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) Guide to Realtime Programming delim off clock_getres(3)
