osiNTPTime.c File Reference

#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <time.h>
#include <errno.h>
#include "epicsEvent.h"
#include "epicsExit.h"
#include "epicsTypes.h"
#include "cantProceed.h"
#include "epicsThread.h"
#include "epicsMutex.h"
#include "errlog.h"
#include "epicsGeneralTime.h"
#include "generalTimeSup.h"
#include "iocsh.h"
#include "osdTime.h"
#include "osiNTPTime.h"
#include "taskwd.h"

Include dependency graph for osiNTPTime.c:

Go to the source code of this file.

Macros
#define	NSEC_PER_SEC   1000000000
#define	NTPTimeSyncInterval   60.0
#define	NTPTimeSyncRetries   4

Functions
void	NTPTime_Init (int priority)
void	NTPTime_Shutdown (void *dummy)
int	NTPTime_Report (int level)

Macro Definition Documentation

#define NSEC_PER_SEC   1000000000

Definition at line 35 of file osiNTPTime.c.

#define NTPTimeSyncInterval   60.0

Definition at line 36 of file osiNTPTime.c.

#define NTPTimeSyncRetries   4

Definition at line 37 of file osiNTPTime.c.

Function Documentation

void NTPTime_Init

(

int

priority

)

Definition at line 121 of file osiNTPTime.c.

{
    epicsThreadOnce(&onceId, NTPTime_InitOnce, &priority);
}

int NTPTime_Report

(

int

level

)

Definition at line 253 of file osiNTPTime.c.

{
    if (onceId == EPICS_THREAD_ONCE_INIT) {
        printf("NTP driver not initialized\n");
    } else if (NTPTimePvt.synchronize) {
        printf("NTP driver %s synchronized with server\n",
            NTPTimePvt.synchronized ? "is" : "is *not*");
        if (NTPTimePvt.syncsFailed) {
            printf("Last successful sync was %.1f minutes ago\n",
                NTPTimePvt.syncsFailed * NTPTimeSyncInterval / 60.0);
        }
        if (level) {
            char lastSync[32];

            epicsTimeToStrftime(lastSync, sizeof(lastSync),
                "%Y-%m-%d %H:%M:%S.%06f", &NTPTimePvt.syncTime);
            printf("Syncronization interval = %.1f seconds\n",
                NTPTimeSyncInterval);
            printf("Last synchronized at %s\n",
                lastSync);
            printf("Current OS tick rate = %u Hz\n",
                osdTickRateGet());
            printf("Measured tick rate = %.3f Hz\n",
                NTPTimePvt.tickRate);
            osdNTPReport();
        }
    } else {
        printf("NTP synchronization thread not running.\n");
    }
    return 0;
}

void NTPTime_Shutdown

(

void *

dummy

)

Definition at line 129 of file osiNTPTime.c.

{
    NTPTimePvt.synchronize = 0;
    epicsEventSignal(NTPTimePvt.loopEvent);
}

Variable Documentation

epicsUInt32 clockTick

Definition at line 49 of file osiNTPTime.c.

epicsTimeStamp clockTime

Definition at line 48 of file osiNTPTime.c.

epicsMutexId lock

Definition at line 45 of file osiNTPTime.c.

epicsEventId loopEvent

Definition at line 43 of file osiNTPTime.c.

int synchronize

Definition at line 41 of file osiNTPTime.c.

int synchronized

Definition at line 42 of file osiNTPTime.c.

int syncsFailed

Definition at line 44 of file osiNTPTime.c.

epicsUInt32 syncTick

Definition at line 47 of file osiNTPTime.c.

epicsTimeStamp syncTime

Definition at line 46 of file osiNTPTime.c.

double tickRate

Definition at line 51 of file osiNTPTime.c.

epicsUInt32 ticksToSkip

Definition at line 50 of file osiNTPTime.c.