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Newsgroups: comp.lang.ada
Date: Tue, 5 Nov 2019 12:11:33 -0800 (PST)
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Subject: Re: Socket & Multicast problems / GNAT.Sockets
From: Shark8 <onewingedshark@gmail.com>
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Xref: reader01.eternal-september.org comp.lang.ada:57499
Date: 2019-11-05T12:11:33-08:00
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On Tuesday, November 5, 2019 at 12:57:07 PM UTC-7, Dmitry A. Kazakov wrote:
> On 2019-11-05 20:06, Shark8 wrote:
>=20
> > Most of the messages can, I think, be mapped out to Ada's records fairl=
y easily but that's getting ahead of myself =E2=80=94 what I'm having troub=
le with is getting a socket to receive from the proper multicast address[es=
] =E2=80=94 there is a note in the GNAT.Sockets example [which isn't workin=
g] that joining a multicast-group has to be set as an option subsequent to =
binding the socket when running on Windows.
>=20
> Did you check this:
>=20
> https://stackoverflow.com/questions/58151208/receiving-multicast-traffic-=
using-gnat-sockets
Ah, I had not seen this one; but I did look around on StackOverflow.

>=20
> P.S. I don't know what the example above does exactly. E.g. if it=20
> configures an IGMP group and runs PGM on it. Is it PGM what you want to u=
se?
No, I don't think so.
It's essentially a custom protocol / message-system used at a particular in=
stallation of the NSO.