timesync.c

来自「实现ipvlbi数据记录」· C语言 代码 · 共 101 行

/**************************************************************/
/*                                                            */
/*   Program Name :  timesync                                 */
/*                                                            */
/*      Version:  0.00  2002-07-01                            */
/*                1.00  2002-10-04                            */
/*                                                            */
/*      Copyright (c) 2002 T.Kondo/CRL All Right Reserved     */
/*                                                            */
/**************************************************************/
/*

 俬俹亅倁俴俛俬儃乕僪  侾俹俹俽摨婜僾儘僌儔儉
        乮帪崗僙僢僩偼暿偺僜僼僩偱峴偆乯
         by T.Kondo 2002.7.1

    憱傜偣曽 timesync [period]
         偙偙偱 period  帪崗摨婜屻昞帵偡傞帪娫乮昩乯
                       僨僼僅儖僩偼侾侽昩娫昞帵

*/
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/tdsio.h>

int sec2hmss(unsigned int sec, int* hh, int* mm, int* ss);

int sec2hms(unsigned int sec, int* hh, int* mm, int* ss)
{
	//char cbuf[60];
	long int j;
	*hh=sec/3600 ;
       j=sec-*hh*(long)3600;
       *mm=(int)(j/60) ;
	*ss=(int)(j-*mm*(long)60) ;
    return 0;
}

int main(int argc, char **argv)
{
	int fd_in,rv;
	unsigned int time,day,sec; // 僨僶僀僗偐傜撉傒崬傫偩尰嵼偺帪崗忣曬傪奿擺
       unsigned int secold, secmax;
	int  yyyy, mm, dd;      // 帪娫愝掕(timeset)偱棙梡
	int  h, m, s;           // 帪娫愝掕(timeset)偱棙梡
       int counter;
       int i;

	if(argc >= 2){
	   secmax = atoi(*(argv + 1 ));
          if(secmax <= 0) {secmax=10;}
       } else {
          secmax=10;
       }


	fd_in = open("/dev/tds0", O_RDONLY);  //僨僶僀僗偺僆乕僾儞
	if (fd_in == -1) {
		perror("device open() error ");
		return -1;
	}
	printf("IP-VLBI Board 1PPS Time Sync  (by T.KONDO)\n");

	//1昩摨婜偺愝掕
	rv = ioctl(fd_in, TDSIO_SYNC_1PPS);
	if (rv == -1) {
		perror("ioctl() 1pps sync failed ");
		return -1;
	}
	printf("1pps sync ok\n");

	time = 0; //擮偺偨傔弶婜壔
       secold=90000;
       counter=0;

	//僨僶僀僗偐傜帪崗忣曬偺庢摼 and display while
       do{
	rv = ioctl(fd_in, TDSIO_GET_TIME, &time);
	if (rv == -1) {
		perror("ioctl() time get failed ");
		return -1;
	}
       day=TDS_GET_DAYS(time);
       sec=TDS_GET_SEC(time);
       if (sec!=secold) {
       i=sec2hms(sec,&h,&m,&s);
	//printf("get count day from device [%5d]\n",TDS_GET_DAYS(time));
	//printf("get count sec from device [%5d]\n",TDS_GET_SEC(time));
 	printf("%03d %02d:%02d:%02d\n\033[A",day,h,m,s);
      counter++;
       }
       secold=sec;
       }while(counter <=secmax);

	printf("\n\n");

}