/*
* CAUTION: clockobj_set_resolution() may be called during the init
* phase only, not after. IOW, the resolution is perceived as a
* constant when the application code executes. For performance
* reason, we want to run locklessly for common time unit conversions,
* so the clockobj implementation does assume that the clock
* resolution will NOT be updated after the init phase.
*/
int clockobj_set_resolution(struct clockobj *clkobj, unsigned int resolution_ns)
{
#ifdef CONFIG_XENO_LORES_CLOCK_DISABLED
assert(resolution_ns == 1);
#else
__clockobj_set_resolution(clkobj, resolution_ns);
/* Changing the resolution implies resetting the epoch. */
clockobj_set_date(clkobj, 0);
#endif
return 0;
}
u_long tm_set(u_long date, u_long time, u_long ticks)
{
struct service svc;
struct tm tm;
ticks_t t;
int ret;
COPPERPLATE_PROTECT(svc);
ret = date_to_tmstruct(date, time, ticks, &tm);
if (ret)
goto out;
clockobj_caltime_to_ticks(&psos_clock, &tm, ticks, &t);
clockobj_set_date(&psos_clock, t, 0);
out:
COPPERPLATE_UNPROTECT(svc);
return SUCCESS;
}
