Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!xanth!mcnc!rti!mozart!sasebb
From: sasebb@zen.unx.sas.com (Edmund Burnette)
Newsgroups: comp.sys.hp
Subject: Re: HP-UX 8.0: memory mapped files?
Message-ID: <1991May02.232036.18083@unx.sas.com>
Date: 2 May 91 23:20:36 GMT
References: <1991Apr25.092827@ead.dsa.com> <7370382@hpfcso.FC.HP.COM>
Sender: news@unx.sas.com (Noter of Newsworthy Events)
Organization: SAS Institute Inc.
Lines: 17
Nntp-Posting-Host: zen.unx.sas.com


In article <7370382@hpfcso.FC.HP.COM>, mjs@hpfcso.FC.HP.COM (Marc Sabatella) writes:
|> Your assessment is correct.  HP-UX shared libraries use an internal mechanism
|> similar in concept to memory mapped files in SunOS, but there is no supported
|> interface to this mechanism in 8.0

Hi Marc.  I'm concerned about your comment here about "no supported interface".
In 8.01 on the 700, the file /usr/include/sys/mman.h exists, and the mmap() and
related calls exist in syscall.h and in the system libraries.  Do you mean
people should avoid it in this release because HP knows it doesn't work,
doesn't guarantee it will work, didn't document it, or because it might change
in the future?  Will it be better supported in 8.05?  As you know we'd like to
use it in our debugger but will (reluctantly) avoid it if HP tells us to
definitely stay away from it (or doesn't fix bugs in it).
--
Edmund Burnette, SAS Institute Inc.    (919)677-8000 | sasebb@unx.sas.com
SAS Campus Drive, Cary, NC 27513  (919)677-8123(fax) | ...!mcnc!sas!sasebb