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Add system call implementation of ntp_gettime(2).

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Moved most of the work to ntp_gettime1(), which is now called by
ntp_gettime() and ntp_sysctl().

Reviewed by:	imp, phk, njl, peter
Approved by:	njl
This commit is contained in:
Mark Santcroos 2004-11-18 23:44:49 +00:00
parent 1317240bac
commit 932cfd418c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=137873
1 changed files with 43 additions and 18 deletions
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61
sys/kern/kern_ntptime.c
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@ -194,27 +194,20 @@ static long pps_errcnt; /* calibration errors */
static void ntp_init(void);
static void hardupdate(long offset);
static void ntp_gettime1(struct ntptimeval *ntvp);
/*
* ntp_gettime() - NTP user application interface
*
* See the timex.h header file for synopsis and API description. Note
* that the TAI offset is returned in the ntvtimeval.tai structure
* member.
*/
static int
ntp_sysctl(SYSCTL_HANDLER_ARGS)
static void
ntp_gettime1(struct ntptimeval *ntvp)
{
struct ntptimeval ntv; /* temporary structure */
struct timespec atv; /* nanosecond time */
nanotime(&atv);
ntv.time.tv_sec = atv.tv_sec;
ntv.time.tv_nsec = atv.tv_nsec;
ntv.maxerror = time_maxerror;
ntv.esterror = time_esterror;
ntv.tai = time_tai;
ntv.time_state = time_state;
ntvp->time.tv_sec = atv.tv_sec;
ntvp->time.tv_nsec = atv.tv_nsec;
ntvp->maxerror = time_maxerror;
ntvp->esterror = time_esterror;
ntvp->tai = time_tai;
ntvp->time_state = time_state;
/*
* Status word error decode. If any of these conditions occur,
@ -245,8 +238,40 @@ ntp_sysctl(SYSCTL_HANDLER_ARGS)
*/
(time_status & STA_PPSFREQ &&
time_status & (STA_PPSWANDER | STA_PPSERROR)))
ntv.time_state = TIME_ERROR;
return (sysctl_handle_opaque(oidp, &ntv, sizeof ntv, req));
ntvp->time_state = TIME_ERROR;
}
#ifndef _SYS_SYSPROTO_H_
struct ntp_gettime_args {
struct ntptimeval *ntvp;
};
#endif
/* ARGSUSED */
int
ntp_gettime(struct thread *td, struct ntp_gettime_args *uap)
{
struct ntptimeval ntv;
ntp_gettime1(&ntv);
return (copyout(&ntv, uap->ntvp, sizeof(ntv)));
}
/*
* ntp_gettime() - NTP user application interface
*
* See the timex.h header file for synopsis and API description. Note
* that the TAI offset is returned in the ntvtimeval.tai structure
* member.
*/
static int
ntp_sysctl(SYSCTL_HANDLER_ARGS)
{
struct ntptimeval ntv; /* temporary structure */
ntp_gettime1(&ntv);
return (sysctl_handle_opaque(oidp, &ntv, sizeof(ntv), req));
}
SYSCTL_NODE(_kern, OID_AUTO, ntp_pll, CTLFLAG_RW, 0, "");