Advice on threads - Mac OS 9

[Mick]

What's the best approach for writing a multi-threaded app for Mac OS 9?

What I have in mind is a main thread that collects some information and
a separate thread to wake up and save the info to file every 30 seconds.

I'm currently using CodeWarrior 8, but don't see much in the way of
examples. The only thread related info I see in the documentation set
is windows only.

Thanks in advance,
Mick.

[David Phillip Oster]

In article <3F01D4D7.6070303@hotmail.com>,
Mick <mickster00@hotmail.com> wrote:

> What's the best approach for writing a multi-threaded app for Mac OS 9?
>
> I'm currently using CodeWarrior 8, but don't see much in the way of
> examples. The only thread related info I see in the documentation set
> is windows only.

Here is something I wrote 4 years ago:

<http://groups.google.com/groups?selm=oster-1710992329040001%40adsl-63-192-132-81.dsl.snfc21.pacbell.net>

[Frederick Cheung]

On Tue, 1 Jul 2003, David Phillip Oster wrote:

> In article <3F01D4D7.6070303@hotmail.com>,
> Mick <mickster00@hotmail.com> wrote:
>

> > What's the best approach for writing a multi-threaded app for Mac OS 9?
> >
> > I'm currently using CodeWarrior 8, but don't see much in the way of
> > examples. The only thread related info I see in the documentation set
> > is windows only.

>
> Here is something I wrote 4 years ago:
>
> <http://groups.google.com/groups?selm=oster-1710992329040001%40adsl-63-192-132-81.dsl.snfc21.pacbell.net>

I'll add that MP (preemptive threads) are also an option.
There are restrictions on what calls you can make from such a thread and
you need to think carefully about what you do to avoid race conditions and
such. There is sample code on the developer web side that will allow to
use open transport from an mp thread. (search for otmp).
You can send carbon events from an mp thread which is in general much more
fun than using queues/semaphores.

Documentation on both kinds of threads can be found on the developer web
site.

Fred