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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: I/O - exception handling
Date: 30 May 2003 04:33:13 -0500
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In article <slrnbde04e.ps.randhol+abuse@kiuk0152.chembio.ntnu.no>, Preben Randhol <randhol+abuse@pvv.org> writes:

> I see, but why would it? I mean why would Is_Open start poking in the
> I/O. On Linux/Unix you don't lock files as in Windows, so you cannot
> tell if the file is opened or not as 10 programs may open it at the same
> time. Therefore I thought the implementation would be a test if the Open
> procedure succeded or not?

Certainly.

    1. function Is_Open(File : in File_Type) return Boolean;

         1. Returns True if the file is open (that is, if it is associated
	    with an external file), otherwise returns False. 

That does not seem to have anything to do with whether other programs
have associated with the same external file.