Re: [PATCH 4/5] mach-defpager: add function mig_reply_setup

[Samuel Thibault]

Justus Winter, le Mon 24 Feb 2014 15:41:55 +0100, a écrit :
> Currently, mig_reply_setup is not provided by libmachuser or the
> glibc.  Provide it locally.
> 
> * mach-defpager/default_pager.c (mig_reply_setup): New function.

Ack.

> ---
>  mach-defpager/default_pager.c | 31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 
> diff --git a/mach-defpager/default_pager.c b/mach-defpager/default_pager.c
> index 4d604fe..805e065 100644
> --- a/mach-defpager/default_pager.c
> +++ b/mach-defpager/default_pager.c
> @@ -3028,6 +3028,37 @@ extern void bootstrap_compat();
>  
>  mach_msg_size_t default_pager_msg_size_object = 128;
>  
> +/* Fill in default response.  */
> +static void
> +mig_reply_setup (
> +     const mach_msg_header_t *in,
> +     mach_msg_header_t       *out)
> +{
> +      static const mach_msg_type_t RetCodeType = {
> +             /* msgt_name = */               MACH_MSG_TYPE_INTEGER_32,
> +             /* msgt_size = */               32,
> +             /* msgt_number = */             1,
> +             /* msgt_inline = */             TRUE,
> +             /* msgt_longform = */           FALSE,
> +             /* msgt_deallocate = */         FALSE,
> +             /* msgt_unused = */             0
> +     };
> +
> +#define      InP     (in)
> +#define      OutP    ((mig_reply_header_t *) out)
> +      OutP->Head.msgh_bits =
> +     MACH_MSGH_BITS(MACH_MSGH_BITS_REMOTE(InP->msgh_bits), 0);
> +      OutP->Head.msgh_size = sizeof *OutP;
> +      OutP->Head.msgh_remote_port = InP->msgh_remote_port;
> +      OutP->Head.msgh_local_port = MACH_PORT_NULL;
> +      OutP->Head.msgh_seqno = 0;
> +      OutP->Head.msgh_id = InP->msgh_id + 100;
> +      OutP->RetCodeType = RetCodeType;
> +      OutP->RetCode = MIG_BAD_ID;
> +#undef InP
> +#undef OutP
> +}
> +
>  boolean_t
>  default_pager_demux_object(in, out)
>       mach_msg_header_t       *in;
> -- 
> 1.8.5.2
> 

-- 
Samuel
/*
 * [...] Note that 120 sec is defined in the protocol as the maximum
 * possible RTT.  I guess we'll have to use something other than TCP
 * to talk to the University of Mars.
 * PAWS allows us longer timeouts and large windows, so once implemented
 * ftp to mars will work nicely.
 */
(from /usr/src/linux/net/inet/tcp.c, concerning RTT [retransmission timeout])