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Re: Posix Inter-process comunication on RH 7.1



1. About Posix compliance I think the same as you-- so I'm still waiting
for some answer on that.
2. No hard feelings about System V good old ipc -- BUT on a very large project
Posix
 style designed and coded, you cannot change it's ipc to System V out of the
blue.
For example the Posix queues (mq_open, mq_send, mq_send) will give send the
receiving process a signal when a msg. arrives-  such a mechanism does not
exist on System V .



Shaul Karl wrote:

> >
> > On Wed, 24 Oct 2001, Gold Edward wrote:
> >
> > > Subject: Posix Inter-process comunication on RH 7.1
> >
> > there isn't any. there isn't any in linux. there are beginnings of posix
> > shared memory in the 2.4 kernel, thought not necessarily in the C library
> > (glibc), and there are no posix msg queues nor posix semaphores in the
> > kernel. there is system V IPC - but you probably wouldn't want to port the
> > application to use _that_.
> >
> > next time (next re-incarnation? next project? next workplace?) you might
> > use a portable library for system abstraction (e.g. ACE, if you're workig
> > in C++). but this time? i'm afraid your company wouldn't want to invest
> > time in this port.
> >
> > --
> > guy
> >
>
> Linux is Posix complaint, doesn't it?
> Or is it that a system can be Posix complaint and still lack Posix IPC?
>
> You sounds to me very negative to system V IPC. Why is that?
> --
> When responding, please quote my entire message.
>
>     Shaul Karl <shaulka@bezeqint.net>


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