--- "Thomas Bushnell, BSG" <[EMAIL PROTECTED]> wrote: > James Morrison <[EMAIL PROTECTED]> writes: > > > I've been looking though some of the mach interfaces and libmach > > is mentioned in a few places. This looks to be libmachuser for us, > > is this correct? > > libmach existed in some old CMU systems. It included libmachuser, as > well as some additional user-space-only functions. (The CMU systems > had a libmachuser which was, more or less, just like ours.) A nice tidbit to add to the Mach manual.
> > I'm also curious about the machine_slot_data_t type, the comment > > says it is bogus, but the interface for xxx_slot_info uses > > machine_slot_data_t instead of machien_slot_t, should this be fixed? > > Also is there any reason that the function to get the function to > > get more information about a processor is prefixed with xxx? > > xxx means that it's deprecated or otherwise discouraged. The fact > that machine_slot_data_t is used only in xxx_slot_info is precisely > why you should believe that it's bogus. > > The reason the type is discouraged is that returning a straightforward > struct is a bad idea. (Compare xxx_host_info with the current > host_info RPC.) So there should be a revamped slot_info function too, > (and cpu_control) though that hasn't been done yet. > > Thomas > Ok, I'm not too sure what is going on with host_info and xxx_host_info, but it seems that xxx_host_info is call to the kernel without using mig, but host_info is an interface created by mig. So with host_info the struct is copied to the user process, where in xxx_host_info the struct is simply given to the user process. Am I understanding any of this? ===== James Morrison University of Waterloo Computer Science - Digital Hardware 2A co-op http://hurd.dyndns.org Anyone referring to this as 'Open Source' shall be eaten by a GNU __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com _______________________________________________ Help-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/help-hurd
