TIMES(3) | Library Functions Manual | TIMES(3) |
times
— process
times
Standard C Library (libc, -lc)
#include
<sys/times.h>
clock_t
times
(struct
tms *tp);
The
times
()
function returns the value of time in CLK_TCK
's of a
second since 0 hours, 0 minutes, 0 seconds, January 1, 1970, Coordinated
Universal Time.
It also fills in the structure pointed to by tp with time-accounting information.
The tms structure is defined as follows:
struct tms { clock_t tms_utime; clock_t tms_stime; clock_t tms_cutime; clock_t tms_cstime; };
The elements of this structure are defined as follows:
All times are in CLK_TCK
's of a
second.
The times of a terminated child process are included
in the tms_cutime and tms_cstime
elements of the parent when one of the
wait(2) functions returns the process ID
of the terminated child to the parent. If an error occurs,
times
()
returns the value ((clock_t)-1), and sets
errno to indicate the error.
The times
() function may fail and set the
global variable errno for any of the errors specified
for the library routines
getrusage(2) and
gettimeofday(2).
The times
() function conforms to
IEEE Std 1003.1-1988 (“POSIX.1”).
December 1, 2008 | macOS 14.6 |