From mboxrd@z Thu Jan  1 00:00:00 1970
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: making the mountpoints visible all the time
Date: Sun, 16 Nov 2003 10:09:42 -0800
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To: Ian Kent <raven@themaw.net>
Cc: autofs@linux.kernel.org, "Taylor, ForrestX" <forrestx.taylor@intel.com>, "Ruslan U. Zakirov" <cubic@wildgate.miee.ru>

Ian Kent wrote:
> 
> But how do you know what the keys are?
> 
> In order to make mount points visible you need to know what they are. The 
> definition of a program map is that it produces map entries as output 
> given an input key.
> 

You need a new operation on a map -- enumerate.  Most, but not all map 
types support it.

In the case of a program map I would suggest implementing enumeration by 
passing no argument and expecting the enumerated list back.

	-hpa