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From: azimmer AT rsa DOT hisd DOT harris DOT com (Alan D Zimmerman)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: fork()/join()
Date: 5 Jun 1995 15:04:39 GMT
Organization: Loral Space & Range Systems
Lines: 37
References: <3qlh05$kcn AT odin DOT diku DOT dk>
Reply-To: azimmer AT rsa DOT hisd DOT harris DOT com
Nntp-Posting-Host: sursabv.rsa.hisd.harris.com
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway: from newsgroup comp.os.msdos.djgpp

In article <3qlh05$kcn AT odin DOT diku DOT dk>, terra AT diku DOT dk (Morten Welinder) writes:
> >Joel Hunter (jhunter AT kendaco DOT telebyte DOT com) wrote:
> >:   Will DJGPP EVER support these functions?  Does anyone care but me
> >: whether it does or not?  We've got the hardware, so why not do it?
 
> fork(), btw, is going to be a pig since it will have to copy the
> entire running process.  The multi-tasking exec's will behave much
> better.

Why?  I have written programs in Ada using Meridian OpenAda DOS that 
supports tasking and runs just fine on an 8086/8088, and 80286 under
DOS.  I know this is a DJGPP (which supports GNAT) newsgroup and not
an Ada newsgroup, but your comments are not necessarily true, it doesn't
 have to run like a pig.
> 
> >MSDOS does not support any advanced systems calls like fork(), because of 
> >its antiquated architecture. DJGPP is not an operating system, only a 
> >development environment... :(
Ada is not an OS, yet it runs multiple tasks just fine under DOS.  If the
OS doesn't support the function call than maybe the run time environment
should.

> 
> Hasn't stopped us before.
> 
> Morten

Alan

-- 
|        Alan D. Zimmerman        | Eagle Scout           SR - 96   |
|   azimmer AT rsa DOT hisd DOT harris DOT com   | Scoutmaster T324                |
|-------------------------------------------------------------------|
|     All opinions are solely my own and do not represent Loral     |
|        I used to be a Buffalo and a good old Buffalo too.         |