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From: "Jean François Martinez" <darkquark99@gmail.com>
Subject: Using Streams in conjunction with Spawn and Gnat.Expect
Date: Mon, 9 Feb 2015 08:38:27 -0800 (PST)
Date: 2015-02-09T08:38:27-08:00	[thread overview]
Message-ID: <8a15f2d4-e27b-4de2-953c-c91499bb0362@googlegroups.com> (raw)

Problem is:  I have a program that spawns another (Non_Blocking_Spawn in Gnat.Expect) and communicates with it by sending it variable length strings preceeding by a token telling the son what to do with it.  I would like they did it by exchanging objects through the 'Output and 'Input atribute.

Problem is: Non_Blocking_Spawn works with Process_Descriptors from them you can get a File_Descriptor (from Gnat.Os_Lib.File_Descriptor) but I have been unable to find a way for mapping a Stream on a File_Descriptor.

Any ideas?

Jean François Martinez

PS: I could resort to forget about Objects and Streams and just parse input in son, in fact that is what I did in a previous version but that is sooo crude and unelegant.  That is why I would like to use Objects and Streamas.

             reply	other threads:[~2015-02-09 16:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-09 16:38 Jean François Martinez [this message]
2015-02-09 18:17 ` Using Streams in conjunction with Spawn and Gnat.Expect Dmitry A. Kazakov
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