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Are "pipes" the only IPC mechanism possible for "normal" (i.e.,
non-server) Minix3 processes?
The only "message" primitive allowed (by default) is 'sendrec'() which
really can't be used for such purposes.
How do user processes communicate between themselves?
Thanks for your ideas and comments!
--
Prof Kenneth H Jacker [email]khj@cs.appstate.edu[/email]
Computer Science Dept [url]www.cs.appstate.edu/~khj[/url]
Appalachian State Univ
Boone, NC 28608 USA
On Mar 4, 4:08 pm, Kenneth Jacker <k...@be.cs.appstate.edu> wrote:[color=blue]
> Are "pipes" the only IPC mechanism possible for "normal" (i.e.,
> non-server) Minix3 processes?
>
> The only "message" primitive allowed (by default) is 'sendrec'() which
> really can't be used for such purposes.
>[/color]
One can use a file (probably you knew about that).
As implemented, there is no direct IPC possible among user processes.
I was able to get rid of sendrec in Minix-1.5 but not after that. So,
I also
would be interested in the answer to your query.
-ishwar
In article <87abytdm9u.fsf@be.cs.appstate.edu>,
Kenneth Jacker <khj@cs.appstate.edu> wrote:[color=blue]
>Are "pipes" the only IPC mechanism possible for "normal" (i.e.,
>non-server) Minix3 processes?
>
>The only "message" primitive allowed (by default) is 'sendrec'() which
>really can't be used for such purposes.
>
>How do user processes communicate between themselves?[/color]
The interface presented to application programs is POSIX. IMHO, the Minix
message passing primitives are too low level to be used for general purpose
IPC in applications.
--
That was it. Done. The faulty Monk was turned out into the desert where it
could believe what it liked, including the idea that it had been hard done
by. It was allowed to keep its horse, since horses were so cheap to make.
-- Douglas Adams in Dirk Gently's Holistic Detective Agency
I'm slightly hijacking this topic, but is there a pthreads library
available in minix 3? Can't find much information about it so far.
wacco
On Mar 9, 9:44 am, phi...@ue.aioy.eu (Philip Homburg) wrote:[color=blue]
> In article <87abytdm9u....@be.cs.appstate.edu>,
> Kenneth Jacker <k...@cs.appstate.edu> wrote:
>[color=green]
> >Are "pipes" the only IPC mechanism possible for "normal" (i.e.,
> >non-server) Minix3 processes?[/color]
>[color=green]
> >The only "message" primitive allowed (by default) is 'sendrec'() which
> >really can't be used for such purposes.[/color]
>[color=green]
> >How do user processes communicate between themselves?[/color]
>
> The interface presented to application programs is POSIX. IMHO, the Minix
> message passing primitives are too low level to be used for general purpose
> IPC in applications.
>
> --
> That was it. Done. The faulty Monk was turned out into the desert where it
> could believe what it liked, including the idea that it had been hard done
> by. It was allowed to keep its horse, since horses were so cheap to make.
> -- Douglas Adams in Dirk Gently's Holistic Detective Agency[/color]
<mickeymeeuw@gmail.com> wrote in message
news:1173464730.422650.280250@30g2000cwc.googlegroups.com...
[color=blue]
> I'm slightly hijacking this topic, but is there a pthreads library
> available in minix 3? Can't find much information about it so far.[/color]
Why didn't you just start a new thread and ask that so your question would
have greater visibility? It seems like a valid topic for a separate thread
to me.
John