int sleep_main(int argc UNUSED_PARAM, char **argv)
{
#if ENABLE_FEATURE_FLOAT_SLEEP
double duration;
struct timespec ts;
#else
unsigned duration;
#endif
++argv;
if (!*argv)
bb_show_usage();
#if ENABLE_FEATURE_FLOAT_SLEEP
duration = 0;
do {
char *arg = *argv;
if (strchr(arg, '.')) {
double d;
char *pp;
int len = strspn(arg, "0123456789.");
char sv = arg[len];
arg[len] = '\0';
errno = 0;
d = strtod(arg, &pp);
if (errno || *pp)
bb_show_usage();
arg[len] = sv;
len--;
sv = arg[len];
arg[len] = '1';
duration += d * xatoul_sfx(&arg[len], sfx);
arg[len] = sv;
} else
duration += xatoul_sfx(arg, sfx);
} while (*++argv);
ts.tv_sec = MAXINT(typeof(ts.tv_sec));
ts.tv_nsec = 0;
if (duration >= 0 && duration < ts.tv_sec) {
ts.tv_sec = duration;
ts.tv_nsec = (duration - ts.tv_sec) * 1000000000;
}
do {
errno = 0;
nanosleep(&ts, &ts);
} while (errno == EINTR);
#elif ENABLE_FEATURE_FANCY_SLEEP
duration = 0;
do {
duration += xatou_range_sfx(*argv, 0, UINT_MAX - duration, sfx);
} while (*++argv);
sleep(duration);
#else /* simple */
duration = xatou(*argv);
sleep(duration);
// Off. If it's really needed, provide example why
//if (sleep(duration)) {
// bb_perror_nomsg_and_die();
//}
#endif
return EXIT_SUCCESS;
}
duration_t FAST_FUNC parse_duration_str(char *str)
{
return xatou_range_sfx(str, 0, UINT_MAX, duration_suffixes);
}
