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%sccs.include.redist.man%
@(#)times.3 6.3 (Berkeley) 08/27/90
#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: typedef struct {
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:
tms_utime The CPU time charged for the execution of user instructions.
tms_stime The CPU time charged for execution by the system on behalf of the process.
tms_cutime The sum of the tms_utime s and tms_cutime s of the child processes.
tms_cstime The sum of the tms_stime s and tms_cstime s of the child processes.
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 () functions returns the process ID of the terminated child to the parent (see wait (2)). If an error occurs, times returns ((clock_t)-1), and sets errno to indicate the error.