Re: New gpsd version with TCP reconnect

[Nick Taylor]

Yo Gary
> I just pushed a change for gpsd to explicitly close the tcp:// connection
> after 60 seconds.  See if that helps you.
Don't want to break out the Champagne prematurely but it's looking very 
positive :D

Here's Client commands showing sequence of commands and timing:
root@TSB-318:/home/am43# wc gpsd-20221111-block-client.log
1078  8415 78214 gpsd-20221111-block-client.log
root@TSB-318:/home/am43# iptables -A INPUT -p tcp --source-port 2948 -j 
DROP
root@TSB-318:/home/am43# date
Fri Nov 11 12:40:46 UTC 2022
root@TSB-318:/home/am43# wc gpsd-20221111-block-client.log
1316 10340 95718 gpsd-20221111-block-client.log
root@TSB-318:/home/am43# iptables -D INPUT -p tcp --source-port 2948 -j 
DROP
root@TSB-318:/home/am43# date
Fri Nov 11 12:43:07 UTC 2022
root@TSB-318:/home/am43# wc gpsd-20221111-block-client.log
 1831  12356 127069 gpsd-20221111-block-client.log
root@TSB-318:/home/am43#

And server shows:
root@TSB-1650:~# ps aux|grep socat
root      8402  0.1  0.1   4312  1432 pts/0    S    12:40   0:00 socat 
EXEC:gpspipe -Br TCP-LISTEN:2948,reuseaddr,fork
root      8629  0.0  0.1   2080  1212 pts/0    S+   12:41   0:00 grep socat
root     32032  0.0  0.1   4312  1876 pts/0    S    11:54   0:00 socat 
EXEC:gpspipe -Br TCP-LISTEN:2948,reuseaddr,fork
root@TSB-1650:~# ps aux|grep socat
root      8757  0.0  0.1   2080  1148 pts/0    S+   12:42   0:00 grep socat
root     32032  0.0  0.1   4312  1876 pts/0    S    11:54   0:00 socat 
EXEC:gpspipe -Br TCP-LISTEN:2948,reuseaddr,fork
root@TSB-1650:~# date
Fri Nov 11 12:42:23 UTC 2022
root@TSB-1650:~#

Somehow your new the tcp close still seems to take effect even with 2948 
blocked... This means that there's no point in me waiting 20 mins for 
socat to timeout as it's closed within 60s

All good so far, will start to rollout to real world testing next week

Keeping everything crossed - have a great weekend

All the very best

Nick