Date: Tue, 2 Dec 1997 19:22:49 -0500 (EST)
Message-Id: <199712030022.TAA02585@delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: randym AT acm DOT org
CC: djgpp-workers AT delorie DOT com
In-reply-to: <3.0.1.32.19971202130439.007ae100@yacker.xiotech.com> (message
	from Randy Maas on Tue, 02 Dec 1997 13:04:39 -0600)
Subject: Re: patch for fsext.h
Precedence: bulk


> struct {
>    int fd;
>   __FSEXT_function* func;
>   void* data;
> };
> 
> This should be able to fit 340 or so on a single page.  I'd say use fd as
> the hash key.  The big drawback is the penalty for updating and searching
> the list, possibly twice.  Any idea if the average case under two tables is

Better yet, drop the fd member and make an array[256] of them (use fd
as the index).  256 fds = 512*4 bytes = 2048, well within a page size.
Worst case would be four pages (table spans two pages, lookup
functions span two pages) but that's worst case already.