Michael Davidsaver
119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
/*************************************************************************\
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* Copyright (c) 2015 UChicago Argonne LLC, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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#define _VSB_CONFIG_FILE <../lib/h/config/vsbConfig.h>
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#include <vxWorks.h>
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#include <sntpcLib.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <taskLib.h>
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#define EPICS_EXPOSE_LIBCOM_MONOTONIC_PRIVATE
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#include "epicsTime.h"
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#include "osiNTPTime.h"
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#include "osiClockTime.h"
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#include "generalTimeSup.h"
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#include "envDefs.h"
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#define NTP_REQUEST_TIMEOUT 4 /* seconds */
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static char sntp_sync_task[] = "ipsntps";
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static char ntp_daemon[] = "ipntpd";
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static const char *pserverAddr = NULL;
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extern char* sysBootLine;
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static int timeRegister(void)
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{
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/* If TIMEZONE not defined, set it from EPICS_TIMEZONE */
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if (getenv("TIMEZONE") == NULL) {
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const char *timezone = envGetConfigParamPtr(&EPICS_TIMEZONE);
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if (timezone == NULL) {
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printf("timeRegister: No Time Zone Information\n");
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} else {
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epicsEnvSet("TIMEZONE", timezone);
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}
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}
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// Define EPICS_TS_FORCE_NTPTIME to force use of NTPTime provider
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bool useNTP = getenv("EPICS_TS_FORCE_NTPTIME") != NULL;
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if (!useNTP &&
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(taskNameToId(sntp_sync_task) != ERROR ||
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taskNameToId(ntp_daemon) != ERROR)) {
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// A VxWorks 6 SNTP/NTP sync task is running
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struct timespec clockNow;
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useNTP = clock_gettime(CLOCK_REALTIME, &clockNow) != OK ||
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clockNow.tv_sec < BUILD_TIME;
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// Assumes VxWorks and the host OS have the same epoch
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}
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if (useNTP) {
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// Start NTP first so it can be used to sync SysTime
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NTPTime_Init(100);
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ClockTime_Init(CLOCKTIME_SYNC);
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} else {
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ClockTime_Init(CLOCKTIME_NOSYNC);
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}
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osdMonotonicInit();
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return 1;
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}
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static int done = timeRegister();
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// Routines for NTPTime provider
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int osdNTPGet(struct timespec *ts)
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{
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return sntpcTimeGet(const_cast<char *>(pserverAddr),
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NTP_REQUEST_TIMEOUT * sysClkRateGet(), ts);
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}
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void osdNTPInit(void)
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{
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pserverAddr = envGetConfigParamPtr(&EPICS_TS_NTP_INET);
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if (!pserverAddr) { /* use the boot host */
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BOOT_PARAMS bootParms;
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static char host_addr[BOOT_ADDR_LEN];
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bootStringToStruct(sysBootLine, &bootParms);
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/* bootParms.had = host IP address */
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strncpy(host_addr, bootParms.had, BOOT_ADDR_LEN);
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pserverAddr = host_addr;
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}
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}
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void osdNTPReport(void)
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{
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if (pserverAddr)
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printf("NTP Server = %s\n", pserverAddr);
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}
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// Other Time Routines
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// vxWorks localtime_r returns different things in different versions.
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// It can't fail though, so we just ignore the return value.
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int epicsTime_localtime(const time_t *clock, struct tm *result)
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{
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localtime_r(clock, result);
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return epicsTimeOK;
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}
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// vxWorks gmtime_r returns different things in different versions.
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// It can't fail though, so we just ignore the return value.
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int epicsTime_gmtime ( const time_t *pAnsiTime, struct tm *pTM )
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{
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gmtime_r(pAnsiTime, pTM);
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return epicsTimeOK;
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}
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