Date: Tue, 20 Feb 1996 16:54:02 -0500 (EST) From: "John Capo" <jc@irbs.com> To: tpatel@ecpi.com (Tushar Patel) Cc: freebsd-isp@freebsd.org Subject: Re: Semaphore operation Message-ID: <199602202154.QAA14674@goombay.irbs.com> In-Reply-To: <199602201222.MAA14593@ecpi.com> from "Tushar Patel" at Feb 20, 96 12:22:54 pm
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Tushar Patel writes:
>
> Is there anything in the FreeBSD which will allow me to do semaphore
> operation?
>
> Like the semop() systemcall on the sun.
>
goombay 241% man semop
SEMOP(2) UNIX Programmer's Manual SEMOP(2)
NAME
semop - atomic array of operations on a semaphore set
SYNOPSIS
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
int
semop(int semid, struct sembuf array[], unsigned nops)
etc....
You need to build a kernel with the SystemV options enabled. Look
in /sys/i386/conf/LINT for the particulars.
John Capo jc@irbs.com
IRBS Engineering High performance FreeBSD systems
(305) 792-9551 Internet Consulting - ISP Solutions
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