From: Florian Weimer <fweimer@redhat.com>
To: Peng Yu via Libc-help <libc-help@sourceware.org>
Subject: Re: What is the point of IPC_PRIVATE of shmget?
Date: Mon, 12 Apr 2021 18:07:46 +0200 [thread overview]
Message-ID: <87wnt7iizx.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <CABrM6w=oBUEcrWHTc-Q_ksoxwpHYCeLZnz0F+jG9bbeKMSrGoA@mail.gmail.com> (Peng Yu via Libc-help's message of "Mon, 12 Apr 2021 10:54:20 -0500")
* Peng Yu via Libc-help:
> I don't get the point of IPC_PRIVATE of shmget(). Since it is just
> used by the current process, why not just use malloc?
>
> Can anybody give a real example in which IPC_PRIVATE must be used, but
> malloc or other variant of *alloc functions are not appropriate to
> use? Thanks.
shmget(2) says this:
| BUGS
| The name choice IPC_PRIVATE was perhaps unfortunate, IPC_NEW
| would more clearly show its function.
Does this answer your question?
Thanks,
Florian
next prev parent reply other threads:[~2021-04-12 16:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 15:54 Peng Yu
2021-04-12 16:06 ` tomas
2021-04-12 16:07 ` Florian Weimer [this message]
2021-04-12 16:12 ` Peng Yu
2021-04-12 16:14 ` Florian Weimer
2021-04-12 16:18 ` Florian Weimer
2021-04-12 17:23 ` Peng Yu
2021-04-12 18:17 ` J Lumby
2021-04-12 17:55 ` Manfred
2021-04-12 19:05 ` Peng Yu
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