Path: utzoo!attcan!uunet!ingr!crossgl
From: crossgl@ingr.UUCP (Gordon Cross)
Newsgroups: comp.unix.wizards
Subject: Re: Shared memory
Summary: lock shared mem segment in core with shmctl(2)
Keywords: shared, memory, non-swappable
Message-ID: <3007@ingr.UUCP>
Date: 23 Nov 88 19:29:43 GMT
References: <22739@cci632.UUCP>
Organization: Intergraph Corp. Huntsville, Al
Lines: 13

In article <22739@cci632.UUCP>, rrw@cci632.UUCP (Rick Wessman) writes:
> Does anyone know if non-swappable shared memory is supported by
> System V? I need to know because some of our applications developers
> want it. Our sister division in California supports it, but I cannot
> find documentation for it in the SVID.

Yes it is.  Try "shmctl (shmid, SHM_LOCK)" to lock a shared memory segment
in core.  You must be superuser to do this (for obvious reasons).


Gordon Cross
Intergraph Corp.  Huntsville, AL
...uunet!ingr!crossgl