Re: open SHM data only after cgps start

[Frank Nicholas]

Correct & that’s part of the reason Gary was recommending to NOT use SystemD for managing GPSd.

Thanks,

Frank

On Feb 7, 2021, at 3:44 AM, shouldbe q931 <shouldbeq931@gmail.com> wrote:

Hi Gary,

On Sat, Feb 6, 2021 at 5:57 PM Gary E. Miller <gem@rellim.com> wrote:

Yo shouldbe!

On Sat, 6 Feb 2021 10:58:33 +0000
shouldbe q931 <shouldbeq931@gmail.com> wrote:

As you can see, the unliked systemd starts gpsd w/ or w/out "-n" at
boot. 4me therefore, systemd is not the culprit, but obviously I
luck deeper understanding of the gpsd internals. However I would
guess that gpsd, once started from systemd would wait for an "open"
from some application wanting GPS data,

A gpsd client and using SHM are two different things

Ah, no.  SHM is very much OK for clients.  CLients can connecto to gpsd
over the network, or SHM:

I am not saying that SHM is not OK for clients, just not a gpsd client
in the sense of systemd socket activation.

Cheers