🚀 go-pugleaf

Kenneth Jason Fair (kjfair@midway.uchicago.edu) wrote:
: 
: [the "infinite loop" program discussed]
: 
: >I wrote:
: 
: >: And again, so what?  If I hit my computer with a sledgehammer, it
: >: won't work at all.  That's why I don't go around hitting my computer
: >: with sledgehammers.
: >: 
: >: Does cooperative multitasking allow you to run more than one program at
: >: the same time?  Yes.  Does preemptive multitasking do it better?
: >: Perhaps, depending on the situation and the programs involved.
: >: Can I get my work done either way?  Yes.
: >
: 
: In article <19960201.11A2980.E21F@olympus.net>, dons@olympus.net (Don
: Schmelling) wrote:
: 
: >And once again, I must ask the question, but how are you runing more than
: >one program at once in a cooperative multitasking system, while a program
: >like that one is being run.  The program never tells the os it is done
: >with the cpu and just uses up all of the cpu.  If you are only running one
: >task that gets all of the cpu then you are not multitasking.
: 
: Maybe you're interested in running infinite loop programs like that on
: your machine, but I can't think of a single instance where I've needed
: to.  I'm interested in using software that actually has a point.
: 
: Here's what you have to do to make your program multitaskable on the Mac:
: 1) Call the OS routine WaitNextEvent.  This is the same routine that
: returns the next event for you to process, so that you can tell if
: the user hit a key, moved the mouse, etc.

Ah, but if that does not happen then it does not multitask.

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Don Schmelling   Port Angeles, WA USA |
    A1200/540/CD + A1230 50/50/8      | "Don't blame me, I voted Republican"
           OMNIA EXTARES              |
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