From owner-freebsd-stable Mon Jan 25 12:54:45 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA09042 for freebsd-stable-outgoing; Mon, 25 Jan 1999 12:54:45 -0800 (PST) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from netshell.vicosa.com.br (netshell.vicosa.com.br [200.236.148.170]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id MAA09033 for ; Mon, 25 Jan 1999 12:54:39 -0800 (PST) (envelope-from grios@netshell.vicosa.com.br) Received: (qmail 1413 invoked by uid 1070); 25 Jan 1999 20:09:04 -0000 Date: Mon, 25 Jan 1999 18:09:04 -0200 (EDT) From: Gustavo Vieira Goncalves Coelho Rios To: stable@FreeBSD.ORG Subject: semaphores Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG i am trying to implement a readers/writers solution using concurrency control. But the problem is: When i used POSIX.1b to get concurrency control working, i realized that FreeBSd simply does not support it. there is not a semaphore.h header in any fs!!! Another problem: As FreeBSD does not support POSIX.1b i decided to use SYSVSEM, but my kernel does not support it. It's impossible, if there is no way to use semphores in FreeBSD (the only two way i know don't work) in the scenario i am. So there is two options: a) None program in my system is using semaphores, any server, etc. b) there is a thirdy way to get semaphores which i don't know, if so, can anybody explain me. --- I use UNIX because reboots are for hardware upgrades. You use windowze because the guy on TV told you to ... ----- Gustavo Rios ----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message