Path: utzoo!attcan!uunet!uport!plocher
From: plocher@uport.UUCP (John Plocher)
Newsgroups: comp.unix.microport
Subject: Re: /etc/shmcreate, how does it do it?
Message-ID: <403@uport.UUCP>
Date: 6 Aug 88 08:12:20 GMT
References: <162@focsys.UUCP>
Reply-To: plocher@uport.UUCP (John Plocher)
Organization: Microport Systems, Scotts Valley, CA
Lines: 25

In article <162@focsys.UUCP> larry@focsys.UUCP (Larry Williamson) writes:
>
>I've mailed this same query to Microport hoping to get the answer

	and as soon as I have a chance to look at the source for
	shmcreate() I'll post the answer (it's just a bit added to
	the flag argument if memory serves)

>Is the process the same on the 286 and 386 versions of Unix? Or are
>there some differences?

	The 386 does not have the modified shared memory calls like the 286
	does.  You need to create a device driver which allows access.
	If time permits in a few weeks I'll try to post a better answer than
	this...

>an int. Therefore, only 65535 bytes can be specified! Is this, infact
>true, or is there something that I've overlooked?

	on the 386, ints are 32 bits (a long int in 286-speak)

>Thanks,
>Larry Williamson               Focus Automation Systems Inc.

	-John Plocher