Article View: comp.sys.amiga.tech
Article #5490Re: Task Switching Problem
From: Todd M. Lewis
Date: Thu, 27 Sep 1990 14:14
Date: Thu, 27 Sep 1990 14:14
27 lines
2039 bytes
2039 bytes
In article <14593@cbmvax.commodore.com> valentin@cbmvax.commodore.com (Valentin Pepelea) writes:
>In article <1990Sep21.180100.28580@uncecs.edu> utoddl@uncecs.edu (Todd M. Lewis) writes:
>>
>> * how does one get the currently running task to relinquish
>> the CPU for the rest of the current time slice? I want to
>
>There used to be function call available that allowed a task to relinquish
>the CPU to some other ready task, but that function has been made private.
[ . . . ]
>The proper way for tasks to synchronize is through signalling and waiting.
>The availability of a Relinquish() call would incite novice programmers to
[... do evil things . . . ]
>This kind of programming practice must be avoided. The proper thing to do is
>to make the Relinquish() call unavailable.
Ok, I can buy that. I'll try this instead--I'll make two tasks which
signal each other and wait on each other's signals. One of these will do
the monitoring I want to have, while the other will be there simply
to wake up the first task each time the robin goes 'round. It isn't
quite as efficient as I had planned, but what I want to test is
task-relative anyway, not real-time sensitive. Any problems with this?
_____
| Todd M. Lewis Disclaimer: If you want my employer's
||\/| utoddl@ecsvax.uncecs.edu ideas, you'll have to
|| || utoddl@ecsvax.bitnet, @unc.bitnet _buy_ them.
| || utoddl@next1.mscre.unc.edu
|___ ("Prgrms wtht cmmnts r lk sntncs wtht vwls." --TML)
Technical Details
Message-ID:
<1990Sep27.141415.29158@uncecs.edu>Path:
arc1-ca.pugleaf.net!utzoo!attcan!uunet!zephyr.ens.tek.com!uw-beaver!mit-eddie!wuarchive!zaphod.mps.ohio-state.edu!swrinde!emory!hubcap!mephisto!mcnc!ecsgate!ecsvax!utoddlReferences:
<1990Sep21.180100.28580@uncecs.edu> <14593@cbmvax.commodore.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!zephyr.ens.tek.com!uw-beaver!mit-eddie!wuarchive!zaphod.mps.ohio-state.edu!swrinde!emory!hubcap!mephisto!mcnc!ecsgate!ecsvax!utoddl From: utoddl@uncecs.edu (Todd M. Lewis) Newsgroups: comp.sys.amiga.tech Subject: Re: Task Switching Problem Message-ID: <1990Sep27.141415.29158@uncecs.edu> Date: 27 Sep 90 14:14:15 GMT References: <1990Sep21.180100.28580@uncecs.edu> <14593@cbmvax.commodore.com> Organization: UNC Educational Computing Service Lines: 27