From owner-freebsd-hackers Tue Dec 5 9: 9:22 2000 From owner-freebsd-hackers@FreeBSD.ORG Tue Dec 5 09:09:20 2000 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from whizkidtech.net (rh7.bfm.org [216.127.220.200]) by hub.freebsd.org (Postfix) with ESMTP id 3258137B400 for ; Tue, 5 Dec 2000 09:09:18 -0800 (PST) Received: (from adam@localhost) by whizkidtech.net (8.9.2/8.9.2) id LAA00260; Tue, 5 Dec 2000 11:07:44 -0600 (CST) (envelope-from adam) Date: Tue, 5 Dec 2000 11:07:43 -0600 From: "G. Adam Stanislav" To: Aled Morris Cc: Stephen McKay , hackers@FreeBSD.ORG Subject: Re: pipe Message-ID: <20001205110743.B228@whizkidtech.net> References: <20001205085645.A228@whizkidtech.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: ; from aledm@qix.co.uk on Tue, Dec 05, 2000 at 03:43:10PM +0000 Organization: Whiz Kid Technomagic X-URL: http://www.whizkidtech.net/ X-Castle: http://www.redprince.net/ X-Special-Effects: http://www.FilmSFX.com/ X-Operating-System: FreeBSD whizkidtech.net 3.1-RELEASE FreeBSD 3.1-RELEASE Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Dec 05, 2000 at 03:43:10PM +0000, Aled Morris wrote: >malloc appears to mmap pages from fd -1, and makes them private and >read/write (except on sparc architecture, where it uses /dev/zero rather >than -1, which makes more sense to me) > >It isn't particularly complicated: > >newmem = mmap(0, size, PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0); Thanks, Aled. I'll play with it. Will try both -1 and /dev/zero. Cheers, Adam -- Suppose you were an idiot. Suppose you were a member of Congress. But I'm repeating myself... -- Mark Twain To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message