Re: [Flightgear-users] Problems with generic I/O mechanims on WinXP

[Curtis O. <cur...@gm...>]

It may be that the tcp connection needs the other end to be running so it
can make an outgoing connection to something that exists.  I don't think the
tcp side of this has been tested extensively, but I use udp sockets all the
time.

Curt.


On 8/19/07, ian...@f2... <ian...@f2...> wrote:
>
> Hi KH et al.,
>
> I've managed to get to a situation where the following CMD line works in
> giving
> me a file (flight.out), but there is no data appearing on the socket at
> port
> 6000. There is an entry in netstat at 6000, and my process does connect,
> but no
> data can be read off the socket. I have the same result with TCP & UDP.
>
> Can anybody replicate this on WinXP with success. Can anybody suggest
> things I
> can try. I have tried compiling, but couldn't get the exe to actually run
> (another story if I'm forced down that route :-).
>
> Many Thanks for any help
> Ian Hunter
>
> call "C:\Program Files\FlightGear\bin\Win32\fgfs.exe"
>   --fg-root="C:\Program Files\FlightGear\data"
>   --fg-scenery="C:\Program Files\FlightGear\data\Scenery;C:\Program
> Files\FlightGear\scenery"
>   --airport-id=KLVK
>   --aircraft=bf109
>   --control=joystick
>   --disable-random-objects
>   --disable-ai-models
>   --timeofday=noon
>   --generic=file,out,20,flight.out,attitudeAndSurfaces
>   --generic=socket,out,1,localhost,6000,tcp,attitudeAndSurfaces
>
> [This is formatted for clarity]
>
> =========================================================================
>
> Quoting "K. Hoercher" <wb...@gm...>:
>
> > OK, talking to myself a bit, after more reading *g*
> >
> > On 8/14/07, K. Hoercher <wb...@gm...> wrote:
> > > On 8/13/07, Ian Hunter <im...@f2...> wrote:
> >
> > > What does work here is something like:
> > > [ --generic=socket,out,5,localhost,port,udp,xmlFilename ]
> >
> > README.IO talks about parameters "can be" for generic protocol, but
> > obviously "can" refers to the 3 alternatives <serial|socket|file>,
> > whereas the specific parameters are not meant to be optional. One must
> > provide at least the correct number of those if only by leaving some
> > "empty" between the separating commata.
> >
> > Looking through fg_io.cxx I am not sure why
> > 188: FGGeneric *generic = new FGGeneric( tokens[n] ); doesn't fall
> > flat on Ian's input, as it does not contain a needed token[7]. At
> > least not something which could be opened in
> > generic.cxx:57:        readProperties(path.str(), &root);
> >
> > The checking for the needed number of tokens further down (l. 251ff)
> > does happen too late insofar and is too lenient (for
> > "--generic=socket" at least) allowing for tokens.size()<6 which Ian
> > did provide. So should be <7?
> >
> > > > 1) If I set 'out', I get this failure:-
> > > >
> > > > Error: connect() failed in make_client_socket()
> > > > SG_IO_OUT socket creation failed
> > > > Error opening channel communication layer.
> > > > I/O Channel config failed.
> >
> > So finally the error does manifest in l. 294ff.
> >
> > > > 2) If I set 'bi', then all appears OK, but no data appears on the
> socket.
> >
> > Shouldn't work either, but somehow should produce errors along the
> > same lines as shown above.
> >
> > A quick diff with the webinterface didn't show tremendous changes
> > between 0.9.10 and HEAD which would account for different behaviour in
> > that regard I believe.
> >
> > HTH
> > K. Hoercher
> >
> >
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>
>
>
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-- 
Curtis Olson - University of Minnesota - FlightGear Project
http://baron.flightgear.org/~curt/  http://www.humanfirst.umn.edu/
http://www.flightgear.org
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