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Date: Fri, 13 Oct 2006 11:12:33 -0400 (EDT)
From: Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>
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Subject: Re: [ANNOUNCEMENT] Updated: vim-7.0.122-1
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On Fri, 13 Oct 2006, Christopher Faylor wrote:

> On Fri, Oct 13, 2006 at 10:18:17AM -0400, Igor Peshansky wrote:
> >On Thu, 12 Oct 2006, Igor Peshansky wrote:
> >> [...] And if we make it the job of /etc/postinstall/base-files-mketc.sh,
> >> we're depriving the user of a scarce resource -- a mount table entry
> >> (unless we raise the limit, but then again it won't work for older
> >> versions).
> >
> >I'm not very much in favor of silently creating unnecessary mount points.
> >There were cases where it was unavoidable (in the case of XWin fonts and
> >textmode mounts), but in this case an extra-mount-free solution exists.
> >
> >I just checked the source, and apparently the limit on the number of mount
> >entries is 30, not 16 (as previously stated).  Given the fact that
> >/cygdrive/* mounts exist outside of this limit, the mount table entries
> >aren't as scarce a resource as I imagined.  My mount tables have skirted
> >15 or so entries, but never got close to 30.
>
> I don't know who said they were 16 but, if the number of mount points
> was a real problem then increasing them would be a trivial change, as
> opposed to hacking at cygwin's path handling to add YA special case.

The problem is that it would not fix the older versions of Cygwin, which
would still have a smaller number of mount table entries.  However, I
wasn't proposing hacking on the DLL at all.

> >However, the only possible advantage of having that mount would be if we
> >could then copy the symlinks to another installation and have them work
> >seamlessly.  Unfortunately, given that the files that the symlinks refer
> >to live at different paths relative to the windows directory on different
> >windows versions, this is not going to happen.
>
> There are other benefits to creating a mount point besides copying
> between different installations.  In fact, I don't recall copying
> between installations being raised in this thread.
>
> I think that it is important to investigate using known techniques for
> dealing with problems before suggesting semi-drastic modifications to
> the Cygwin DLL.
>
> And, as long as I'm here, let me remind everyone that no matter what
> happens we are not going to be adding anything under /dev.

Ah, I see how what I said above could be misconstrued as an argument in
favor of fixed /cygdrive prefixes or filesystems under /dev.  I should
have been clearer -- the "extra-mount-free" solution I was referring to
was the use of mixed-case paths in base-files-mketc.sh (a 3-line change).
This keeps vim happy, and does not require any other changes to any part
of Cygwin.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha AT cs DOT nyu DOT edu | igor AT watson DOT ibm DOT com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte."
"But no -- you are no fool; you call yourself a fool, there's proof enough in
that!" -- Rostand, "Cyrano de Bergerac"

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