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Date: Mon, 18 Apr 2005 17:48:12 +0200
From: Adrien Plisson <aplisson-news@stochastique.net>
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Subject: Re: Using GNAT.Sockets
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Date: 2005-04-18T17:48:12+02:00
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markp wrote:

> No,
>=20
> It is an Ada program that does not use streams. It uses simply
> address/byte count passed to the TCP. I'm guessing by your answer it
> must use streams also. I don't have control over the other side, so,
> does this mean I will not be able to use streams on my side?
>=20
> Mark

the 'Input attribute, when used on an array type, first tries to read=20
the bounds of the array (ARM95 13.13.2 =A726). those bounds are=20
definitely NOT part of the data received, since the sender did not use=20
streams, and that may explain the corruption you encountered (you are=20
lucky: on fr.comp.lang.ada, another poster got a Storage_Error).

the solution is:
- either use 'Read and 'Write instead of 'Input and 'Output
- or rewrite the sender so that it uses 'Input and 'Output.

you should read ARM95 13.13.2 to understand what data are placed on=20
the stream when using stream attributes.

--=20
rien