Re: GnuMACH considerations

[Ciaran O'Riordan]

Hi Daniele,
 I'm no authority on GNU Mach but here's what I think
is the answers.

I don't think GNU Mach has any idea of what files
are, so it don't think it exports a file struct.

I do know that there is a common communication
protocol for translators (as well as non-'translator' Hurd
servers), the inter-process communication protocol
is "Mach IPC".

I don't know if there is a common API specifically for
translators, it would make sense.  I think APIs are
exported at compile time using 'Mig' (Mach Interface
Generator).

On reflection, I don't really know much would count
as answers to your questions...  :)

I hope some of this info was useful anyway.
Ciaran O'Riordan


On Fri, Mar 28, 2003 at 03:14:56PM +0100, Daniele Bellucci wrote:
> 
> I was wondering of the semi-object oriented approaches
> followed by some operating system like Linux.  In linux
> each kernel layer defines a set of API to hide some low
> level details. So when a process issue a open posix call
> on a block device, linux kernel intercept it and invokes
> the open system call associated with the device by kernel
> module programmer.
> 
> My question is:
> due the the microkernel nature of GnuMach Operating
> System, does the kernel exports any kind of interface like
> struct file_operations in Linux?  is there any common
> inerface between translators?