The point is that you can do IPC using
this scheme which is
1) protected (as compared to a shared
memory (shm) scheme in which any process
can write anywhere and corrupt
everything)
2) involves only 1 copy.
Thanks,
Rajeev
--- "H. Peter Anvin" <hpa@transmeta.com> wrote:
> Rajeev Bector wrote:
> >
> > If your driver is in the kernel,
> > then you dont need that. All processes
> > use system-calls (or ioctls) to send
> > messages and when they do recv(),
> > they get a pointer to a location
> > (where they are mapped to via mmap)
> > and they can read directly. In this
> > scheme, you dont need any traditional
> > UNIX IPC mechanism to work.
> >
>
> And the point of this is?
>
> -hpa
> -
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This archive was generated by hypermail 2b29 : Sun Jul 15 2001 - 21:00:16 EST