[erlang-questions] dets "undocumented" feature?

Evgeny M <>
Fri Feb 7 12:21:23 CET 2014


Name = term() %%http://www.erlang.org/doc/man/dets.html#type-tab_name 

пятница, 7 февраля 2014 г., 15:09:58 UTC+4 пользователь Dmitry Kolesnikov 
написал:
>
> Hello, 
>
> I was constantly having a trouble with dets:open_file interface. 
>
> open_file(Name, Args) -> {ok, Name} | {error, Reason} 
>  Name = atom() 
>
> Using atom() as dets identifier is not always practical, however I see the 
> major reasons behind it. 
>
> Recently I’ve discovered that following statements works perfectly: 
>
> {ok, R1} = dets:open_file(erlang:make_ref(), [{file, "/tmp/myfile"}, 
> {access, read}]). 
> This is “long seemed” solution. When I need to temporary open dets file 
> for reading. 
>
> do you have any insides? how safe is that to put into production? 
>
> Best Regards, 
> Dmitry 
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