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file:open(File, [ram])
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JD Bothma  
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 More options Nov 13 2012, 11:21 am
From: JD Bothma <jbot...@gmail.com>
Date: Tue, 13 Nov 2012 17:21:19 +0100
Local: Tues, Nov 13 2012 11:21 am
Subject: [erlang-questions] file:open(File, [ram])
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The 'ram' option to file:open/2 seems to implement some functionality I
want: to treat a file in memory as if it's a file on disk to let a library
support both disk and in-memory data concisely.

It doesn't look like this option is documented, but it's probably useful to
many. It looks like it's used by at least erl_tar.

Can this become part of the documented API of the file module?

JD

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Patrik Nyblom  
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 More options Nov 14 2012, 5:22 am
From: Patrik Nyblom <p...@erlang.org>
Date: Wed, 14 Nov 2012 11:22:45 +0100
Local: Wed, Nov 14 2012 5:22 am
Subject: Re: [erlang-questions] file:open(File, [ram])
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Hi!

On 11/13/2012 05:21 PM, JD Bothma wrote:

> The 'ram' option to file:open/2 seems to implement some functionality
> I want: to treat a file in memory as if it's a file on disk to let a
> library support both disk and in-memory data concisely.

Yes, it's ancient functionality that has never been documented.
> It doesn't look like this option is documented, but it's probably
> useful to many. It looks like it's used by at least erl_tar.

> Can this become part of the documented API of the file module?

Yes, absolutely - we have no intention of removing it. It also has test
suites. Just submit a documentation patch on Erlang-patches and you have
a documented interface!

> JD

Cheers,
Patrik

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