Subject:
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Re: Clarification of access control
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 17 Nov 2000 03:40:37 GMT
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Viewed:
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983 times
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In article <G44yFL.1LG@lugnet.com>, "Dave Baum" <dbaum@enteract.com>
wrote:
> One way to think of this is that losing resources is a C++/Java style
> exception, and an acquire statement implicitly has a catch with no
> action...
>
> acquire(X)
> {
> ...body...
> }
>
> is sort of like
>
> try
> {
> grabResource(X);
> ...body...
> }
> catch (ResourceLostExcetion e)
> {
> }
I forgot to show that resources get released, the functionality is more
like this:
try
{
grabResource(X);
...body...
releaseResource(X);
}
catch (ResourceLostException e)
{
}
Dave
--
reply to: dbaum at enteract dot com
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Message is in Reply To:
 | | Re: Clarification of access control
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| If a task loses its resources (due to an equal or higher priority task acquiring them), then control leaves the body of the acquire statement. If there is a "catch" block following the acquire, then the catch block is executed, otherwise control (...) (25 years ago, 16-Nov-00, to lugnet.robotics)
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