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From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: net.micro.mac,net.micro.amiga
Subject: Re: Re: Task WAIT on a Mac
Message-ID: <8609300348.AA28194@cory.Berkeley.EDU>
Date: Mon, 29-Sep-86 23:48:43 EDT
Article-I.D.: cory.8609300348.AA28194
Posted: Mon Sep 29 23:48:43 1986
Date-Received: Tue, 30-Sep-86 14:53:16 EDT
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>As I understand it, Wait() doesn't really change the task's priority, 
>it simply relinquishes that processes's time slice.  So I tell my program
>to Wait(), the 68000 goes out and does a round of the other tasks, which
>might include lower priority tasks.  It gets back to me, checks the thing 
>it waiting on, still waiting, and we go around again.

	Wrong Wrong Wrong. Wait() is NOT implimented with a poll.  When you
Wait(), your process goes on a Wait queue and is never even glanced at again
until some other process or interrupt signals it (manually or by sending a
message to a signalling message port).  When this happens, the process
(actually called a Task on the amiga) is placed on the Ready queue (unless
it's at high enough priority to warrent being run immediately OR if there
are no other processes running.. somthing like that), Since only one task
can be Run at a time, the Rest are 'Ready'.


					-Matt