[ntp:questions] Re: Jonathan Buzzard's radioclkd and FreeBSD
Hans Jørgen Jakobsen
hjj at wheel.dk
Sun Nov 9 18:15:07 UTC 2003
On 09 Nov 2003 16:08:47 GMT, Hans Jørgen Jakobsen wrote:
> On Thu, 6 Nov 2003 22:57:17 +0000, Chris Hastie wrote:
>>
>> and for radioclk2
>>
>> ash# make
>> /usr/bin/gcc -s -lm -o radioclkd2 main.o memory.o logger.o serial.o
>> clock.o shm.o settings.o decode_msf.o decode_dcf77.o decode_wwvb.o
>> serial.o: In function `serWaitForSerialChange':
>> serial.o(.text+0x40b): undefined reference to `lofgerf'
>> *** Error code 1
>>
>> Stop in /usr/local/src/radioclk2-0.04.
>>
>
> In line 312 of serial.c change typo lofgerf -> loggerf
>
> Then it compiles on Freebsd (4.7)
>
> I have had it running for half hour decoding dcf.
>
> For some yet undetermined reason it is off by 360 secs:
> ntpq -p
> remote refid st t when poll reach delay offset jitter
>==============================================================================
> *ns.xxxx.xx .GPS. 1 u 527 1024 377 10.793 -0.448 0.282
> -tix.ns.xxxx.xx .GPS. 1 u 455 1024 377 10.758 -0.583 0.717
> -tt16.xxxx.net .GPS. 1 u 97 1024 377 10.504 -0.177 0.515
> +gps.xxx.xx .GPS. 1 u 129 1024 377 13.892 -0.499 0.042
> -miri.xxxx.xx ns.xxxx.xx 2 u 601 1024 377 10.729 -0.356 0.205
> +guam.xxx.xxxx.x .GPS. 1 u 565 1024 377 10.818 -0.450 0.159
> xSHM(0) .dcf. 0 l 40 64 377 0.000 -359999 1.187
Further investigation showed that offset was 1 hour.
Setenv/mktime didnt do the intended but timegm alone was ok.
Here is a patch:
> diff radioclk2-0.04*
diff radioclk2-0.04/decode_dcf77.c radioclk2-0.04-patched/decode_dcf77.c
160,162c160
< setenv("TZ", "", 1);
<
< dectimet = mktime ( &dectime );
---
> dectimet = timegm ( &dectime );
Only in radioclk2-0.04-patched: radioclkd2
diff radioclk2-0.04/serial.c radioclk2-0.04-patched/serial.c
312c312
< lofgerf ( LOGGER_NOTE, "ppsfetch failed: %d\n", errno );
---
> loggerf ( LOGGER_NOTE, "ppsfetch failed: %d\n", errno );
(A mail will soon be send to the author)
/hjj
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