Path: utzoo!mnetor!uunet!husc6!mailrus!nrl-cmf!ames!pasteur!ucbvax!CORY.BERKELEY.EDU!dillon
From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga
Subject: Re: IPC - A proposal
Message-ID: <8803081858.AA07450@cory.Berkeley.EDU>
Date: 8 Mar 88 18:58:40 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 24

:>
:>Oh, and give them a longword length if at all possible; I can see
:>no reason to *limit* message length to 64K.  It's that kind of
:>thinking that gave MSDOS 640K and TOS 40 folders.
:
:But we're using an exec Message structure, and this already has a UWORD
:for the length!  We aren't applying an absolute limit here, though:
:just define a type of message for the job which has a pointer to the
:data -- who wants to copy that much data into the message structure
:anyway?
:						-- Pete --
:

	You guys don't think big enough!  Don't use an exec message
structure, use an exec IOStdReq request structure (which is headed by
an exec message structure).  Remember that somebody might want to 
pass a HUGE buffer (say, a BitMap) which can certainly be more than
64K, and would want to pass it by reference.

	Half hazardly sticking in thousands of 'special' messages all
in different formats is a quick way to get nowhere... because nobody
will use the system.

				-Matt