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Newsgroups: comp.lang.ada
Date: Mon, 18 Feb 2019 01:31:16 -0800 (PST)
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Subject: Re: How To Create And Use Memory Map Files
From: "Rego, P." <pvrego@gmail.com>
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Xref: reader01.eternal-september.org comp.lang.ada:55563
Date: 2019-02-18T01:31:16-08:00
List-Id: <comp.lang.ada>

> Usually it is the reverse: to treat a file as an chunk of memory.
> 
> In more OSes more advanced than Linux one can have shared memory without 
> any files involved. The memory object could even be anonymous if one 
> process passes a handle to the memory to another.
> 
> Linux has special sockets for passing file descriptors, but all is quite 
> purposeless because shared memory still requires a file behind it.

Good to know. I remember VxWorks had some mechanism like this, but I didn't 
go deep.