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From: glmwc@marlin.jcu.edu.au (Matt Crowd)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Asynchronous I/O, Packet Interface (Need Help)
Message-ID: <1990Dec19.095156.3795@marlin.jcu.edu.au>
Date: 19 Dec 90 09:51:56 GMT
References: <126865@linus.mitre.org> <16649@cbmvax.commodore.com>
Organization: James Cook University of North Queensland
Lines: 27

In article <16649@cbmvax.commodore.com> jesup@cbmvax.commodore.com (Randell Jesup) writes:
>In article <126865@linus.mitre.org> duncant@mbunix.mitre.org (Thomson) writes:
>>   /* Initialize the Message structure within the StandardPacket structure */
>>   std_pkt->sp_Msg.mn_Node.ln_Name = (char *) &(std_pkt->sp_Pkt);
>>   std_pkt->sp_Msg.mn_Node.ln_Type = NT_MESSAGE;
>>   std_pkt->sp_Msg.mn_ReplyPort    = reply_port;
>>   std_pkt->sp_Msg.mn_Length       = sizeof( struct DosPacket );
>
>	OK.  Strictly speaking, the NT_MESSAGE and sizeof(struct DosPacket)
                                                   ^^^^^^^^^^^^^^^^^^^^^^
>aren't needed (actually replyport isn't either).

Does this imply we are never going to get memory protection!
I think so.  Please guys, don't give up yet.  There is still time
to convince people to say how long their messages are, and not to
use pointers in them!  

>Randell Jesup, Keeper of AmigaDos, Commodore Engineering.
[nice .sig deleted]

nb.  I have never done any message port programming between tasks, so
I'm no real expert, just read the book once.


-- 
Matt Crowd       Amiga Man
Email Address    glmwc@marlin.jcu.edu.au