#ifdef sgi
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <ctype.h>
#ifdef HAVE_SYS_SYSSGI_H
# include <sys/syssgi.h>
#endif
#define abs(X) (((X) < 0) ? -(X) : (X))
#define USAGE "usage: timetrim [-n] [[-i] value]\n"
#define SGITONTP(X) ((double)(X) * 1048576.0/1.0e9)
#define NTPTOSGI(X) ((long)((X) * 1.0e9/1048576.0))
int
main(
int argc,
char *argv[]
)
{
char *rem;
int c, incremental = 0, ntpunits = 0;
long timetrim;
double value, strtod();
while (--argc && **++argv == '-' && isalpha(argv[0][1])) {
switch (argv[0][1]) {
case 'i':
incremental++;
break;
case 'n':
ntpunits++;
break;
default:
fprintf(stderr, USAGE);
exit(1);
}
}
if (syssgi(SGI_GETTIMETRIM, &timetrim) < 0) {
perror("syssgi");
exit(2);
}
if (argc == 0) {
if (ntpunits)
fprintf(stdout, "%0.5lf\n", SGITONTP(timetrim));
else
fprintf(stdout, "%ld\n", timetrim);
} else if (argc != 1) {
fprintf(stderr, USAGE);
exit(1);
} else {
value = strtod(argv[0], &rem);
if (*rem != '\0') {
fprintf(stderr, USAGE);
exit(1);
}
if (ntpunits)
value = NTPTOSGI(value);
if (incremental)
timetrim += value;
else
timetrim = value;
if (syssgi(SGI_SETTIMETRIM, timetrim) < 0) {
perror("syssgi");
exit(2);
}
}
}
#endif