/*
* local_poll - called by the transmit procedure
*
* LOCKCLOCK: If the kernel supports the nanokernel or microkernel
* system calls, the leap bits are extracted from the kernel. If there
* is a kernel error or the kernel leap bits are set to 11, the NTP leap
* bits are set to 11 and the stratum is set to infinity. Otherwise, the
* NTP leap bits are set to the kernel leap bits and the stratum is set
* as fudged. This behavior does not faithfully follow the
* specification, but is probably more appropriate in a multiple-server
* national laboratory network.
*/
static void
local_poll(
int unit,
struct peer *peer
)
{
#if defined(KERNEL_PLL) && defined(LOCKCLOCK)
struct timex ntv;
#endif /* KERNEL_PLL LOCKCLOCK */
struct refclockproc *pp;
/*
* Do no evil unless the house is dark or lit with our own lamp.
*/
if (!(sys_peer == NULL || sys_peer == peer))
return;
#if defined(VMS) && defined(VMS_LOCALUNIT)
if (unit == VMS_LOCALUNIT) {
extern void vms_local_poll(struct peer *);
vms_local_poll(peer);
return;
}
#endif /* VMS && VMS_LOCALUNIT */
pp = peer->procptr;
pp->polls++;
/*
* Ramble through the usual filtering and grooming code, which
* is essentially a no-op and included mostly for pretty
* billboards.
*/
poll_time = current_time;
refclock_process_offset(pp, pp->lastrec, pp->lastrec, 0);
/*
* If another process is disciplining the system clock, we set
* the leap bits and quality indicators from the kernel.
*/
#if defined(KERNEL_PLL) && defined(LOCKCLOCK)
memset(&ntv, 0, sizeof ntv);
switch (ntp_adjtime(&ntv)) {
case TIME_OK:
pp->leap = LEAP_NOWARNING;
peer->stratum = pp->stratum;
break;
case TIME_INS:
pp->leap = LEAP_ADDSECOND;
peer->stratum = pp->stratum;
break;
case TIME_DEL:
pp->leap = LEAP_DELSECOND;
peer->stratum = pp->stratum;
break;
default:
pp->leap = LEAP_NOTINSYNC;
peer->stratum = STRATUM_UNSPEC;
}
pp->disp = 0;
pp->jitter = 0;
#else /* KERNEL_PLL LOCKCLOCK */
pp->disp = DISPERSION;
pp->jitter = 0;
#endif /* KERNEL_PLL LOCKCLOCK */
pp->lastref = pp->lastrec;
refclock_receive(peer);
}
/*
* local_poll - called by the transmit procedure
*
* LOCKCLOCK: If the kernel supports the nanokernel or microkernel
* system calls, the leap bits are extracted from the kernel. If there
* is a kernel error or the kernel leap bits are set to 11, the NTP leap
* bits are set to 11 and the stratum is set to infinity. Otherwise, the
* NTP leap bits are set to the kernel leap bits and the stratum is set
* as fudged. This behavior does not faithfully follow the
* specification, but is probably more appropriate in a multiple-server
* national laboratory network.
*/
static void
local_poll(
int unit,
struct peer *peer
)
{
#if defined(KERNEL_PLL) && defined(LOCKCLOCK)
struct timex ntv;
#endif /* KERNEL_PLL LOCKCLOCK */
struct refclockproc *pp;
#if defined(VMS) && defined(VMS_LOCALUNIT)
if (unit == VMS_LOCALUNIT) {
extern void vms_local_poll(struct peer *);
vms_local_poll(peer);
return;
}
#endif /* VMS && VMS_LOCALUNIT */
pp = peer->procptr;
pp->polls++;
/*
* Ramble through the usual filtering and grooming code, which
* is essentially a no-op and included mostly for pretty
* billboards. We allow a one-time time adjustment using fudge
* time1 (s) and a continuous frequency adjustment using fudge
* time 2 (ppm).
*/
get_systime(&pp->lastrec);
pp->fudgetime1 += pp->fudgetime2 * 1e-6 * (current_time -
poll_time);
poll_time = current_time;
refclock_process_offset(pp, pp->lastrec, pp->lastrec,
pp->fudgetime1);
/*
* If another process is disciplining the system clock, we set
* the leap bits and quality indicators from the kernel.
*/
#if defined(KERNEL_PLL) && defined(LOCKCLOCK)
memset(&ntv, 0, sizeof ntv);
switch (ntp_adjtime(&ntv)) {
case TIME_OK:
pp->leap = LEAP_NOWARNING;
peer->stratum = pp->stratum;
break;
case TIME_INS:
pp->leap = LEAP_ADDSECOND;
peer->stratum = pp->stratum;
break;
case TIME_DEL:
pp->leap = LEAP_DELSECOND;
peer->stratum = pp->stratum;
break;
default:
pp->leap = LEAP_NOTINSYNC;
peer->stratum = STRATUM_UNSPEC;
}
pp->disp = 0;
pp->jitter = 0;
#else /* KERNEL_PLL LOCKCLOCK */
pp->leap = LEAP_NOWARNING;
pp->disp = DISPERSION;
pp->jitter = 0;
#endif /* KERNEL_PLL LOCKCLOCK */
pp->lastref = pp->lastrec;
refclock_receive(peer);
pp->fudgetime1 = 0;
}
