Manuel Menal wrote: > > Thanks for your answer, it has been somewhat useful ;-) , but not completly, :-( > >Heh, I'm not gonna do _your_ exercise, I've already done it a few times ;P > Of course not, but in some sense almost ! The good clues help very much ( or must I say mach ) :-)
> >Yup, that's the main problem, but I'm not sure I should help you for >this. It is all in the guides. :-) > >[snip] > Yes, is all in the guides; but they are a bit difficult to read sometimes, especially when there are no examples! ( also if you are somewhat impatient; learning is gradual ) > > > and, as you have pointed, I get a "MACH_SEND_INVALID_HEADER" error code! > > I have tried some few things to fill this msgh_bits field correctly, but I'm > > afraid > > that I'm still not prepared; some help will be apreciated, but maybe it would be > > more interesting that me by-myself try todiscover how to fill correctly this > > field. > >Yup, I think so. Don't forget, though, that you only have a receive >right right now, and that you need to make a send right in order to send >a message; there are several ways to do it, as you can see in the >manuals: via mach_msg and MACH_MSG_TYPE_MAKE_SEND, or via >mach_port_insert_right (that one is in Kernel Interfaces too). > > > > Just the little help I was needing ; although I must admit that I have had very much good luck. This was finally the keys to solve the problem : (1) allocate the port : mach_port_allocate( mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &receive_port ); (2) insert a send right in the port : mach_port_insert_right( mach_task_self(), receive_port, MACH_PORT_RIGHT_SEND, MACH_PORT_NULL ); (3) fill the correct msgh_bits : my_message.head.msgh_bits = MACH_MSGH_BITS( MACH_MSG_TYPE_MAKE_SEND ); but the happyness is not complete; as you ( or anybody that knows enough about mach ) would appreciate, I filled all the "mach_msg_type_name_t" variables with random values until the code worked ( -> MACH_MSG_TYPE_MAKE_SEND; I think it does not make very much sense in the msgh_bits field !! ). Now that I have satisfied my impatience, and some of my curiosity, it's time to think about the last issue. Anycase, very much help you for your so much useful help :-). "May God pay you it with many <soons>!" ( a traduction of a spanish expression; I suspect that does not sound very good in english. Feel free of change the <soons> field by whatever you want... ) > >You're welcome! > >Bye, > > > Thank you again; and bye too!! _______________________________________________ Help-hurd mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/help-hurd
