From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: What good are File_Access's?
Date: 1998/07/20
Date: 1998-07-20T00:00:00+00:00 [thread overview]
Message-ID: <dewar.900954709@merv> (raw)
In-Reply-To: 6ovjqp$ki8$1@nnrp1.dejanews.com
<<Ahhhh. That's the answer I was looking for.
I didn't consider that as a possibility because that method of saving off the
Current_Output won't work in a multi-tasking environment. You'd need some kind
of "atomic" save-and-change operation. Since that is %90 of the Ada programs I
have ever worked on, that doesn't make it too useful.
>>
Well it simply needs protecting in a multi-tasking environment. You generalloy
need to have some control over Text_IO anyway (for example, you certainly
cannot do Put_Line operations on standard output at the same time from
two separate tasks without proper synchronization.
next prev parent reply other threads:[~1998-07-20 0:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-07-17 0:00 What good are File_Access's? dennison
1998-07-17 0:00 ` Tucker Taft
1998-07-18 0:00 ` Robert Dewar
1998-07-20 0:00 ` dennison
1998-07-20 0:00 ` Robert Dewar [this message]
1998-07-20 0:00 ` dennison
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