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Re: Threads

To: REALbasic NUG <realbasic-nug@lists.realsoftware.com>
Subject: Re: Threads
From: Charles Yeomans <charles@declareSub.com>
Date: Thu, 31 Jul 2008 11:46:47 -0400
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On Jul 31, 2008, at 10:49 AM, Miller, James T. wrote:


Does not seem to be a lot of information around on threads in RB. So here
are a couple simple question:

1- If I run multiple threads (2 or 3) on a Mac with 4 CPUs, does each thread execute on its own CPU, i.e., is there a processing boost to using threads
in this case.

No.



2 - What happens if a thread (or several threads) calls a method that is not in the thread, e.g., a method defined in the window class that initiated the thread? In particular, are such methods re-enterant, i.e., if one thread calls the method while the other is still using the same method, will the processing in the method execute properly for both calls (seems to in my
testing).


A method runs in the thread of the caller. That the method is not part of a Thread class does not matter.

Charles Yeomans

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