NAME

getclock − Get current value of system-wide clock

SYNOPSIS

#include <sys/timers.h>
int getclock(
        int clktyp,
        struct timespec ∗tp );

LIBRARY

Standard C Library (libc)

PARAMETERS

clktyp
Identifies a system-wide clock.

tpPoints to a timespec structure space where the current value of the system-wide clock is stored. 

DESCRIPTION

The getclock() function sets the current value of the clock specified by clktyp into the location pointed to by the tp parameter. 

The clktyp parameter is given as a symbolic constant name, as defined in the sys/timers.h include file. Only the TIMEOFDAY symbolic constant, which specifies the normal time-of-day clock to access for system-wide time, is supported. 

For the clock specified by TIMEOFDAY, the value returned by this function is the elapsed time since the epoch. The epoch is referenced to 00:00:00 UTC (Coordinated Universal Time) 1 Jan 1970. 

The getclock() function returns a timespec structure, which is defined in the sys/timers.h header file. It has the following members: