Using the Date Service

This section demonstrates how the date service is handled on ChorusOS systems. The following example uses the ctime() function to convert the system date to a standard character string.

Example 12-2 Using the Date Service

#include <stdio.h>
#include <chorus.h>
#include <date/chDate.h>
int result;
KnTimeVal resol, time1, time2;
int main( )
{
    result = univTimeGetRes(&resolution);
    if (result != K_OK)
        printf("error on univTimeGetRes: %s\n", strSysError(result));
    else
        printf("resolution: %d sec, %d nano\n", resol.tmSec, resol.tmNSec);
    result = univTime (&time1);
    if (result != K_OK)
        printf("error on univTime: %s\n", strSysError(result));
    printf("time is: %d seconds, %d nanoseconds\n", time1.tmSec,
            time1.tmNSec);
    printf(" ==> %s\n", ctime(&time1));
    time2.tmSec = 40000000; time2.tmNSec = 0;
    result = univTimeSet(&time1, &time2);
    if (result != K_OK)
        printf("error on univTimeSet: %s\n", strSysError(result));
    result = univTime (&time1);
    if (result != K_OK)
        printf("error on univTime: %s\n", strSysError(result));
    printf("time is: %d seconds, %d nanoseconds\n", time1.tmSec,
            time1.tmNSec);
    printf(" ==> %s\n", ctime(&time1));
}

This program produces the following output:

neon date_s.r
started aid = 2
resolution: 0 sec, 10000000 nano
time is: 947179797 seconds, 590000000 nanoseconds
		Thu Jan 6 17:29:57 2000
time is: 40000000 seconds, 10000000 nanoseconds
		Thu Apr 8 23:06:40 1971