Re: Is it possible to get AIS data by ?POLL; command?

[Gary E. Miller]

Yo Владимир!

On Fri, 17 Apr 2020 20:46:24 +0300
Владимир Калачихин <address@hidden> wrote:

> 17.04.2020 20:29, Gary E. Miller пишет:
> > Given the rate the AIS data comes in, I don't see how it could
> > work.  
> 
> Then obviously I don't quite understand how POLL works.

If you say so.

> After the ?WATCH={"enable":true} I can send ?POLL at any time.

Yes.  But ?POLL is rarely used, so not a heavily validated operation.

> This
> get me last data set from all devices, isn`t it?

Nope.  Look in gpsd.c, starting at line 1317.  Just some of the
data.

> What is the problem with giving the last data set of AIS?

a) no existing code.
b) AIS does not come in data sets, it is a stream.
c) AIS is a huge stream.

> The fact
> that they will be incomplete for a particular vessel is the client's
> problem.

Then I look forward to your patch.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

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