On Nov 1, 2016, at 6:00 PM, Douglas von Roeder wrote:

> On Tue, Nov 1, 2016 at 2:57 PM, David Adams <[email protected]> wrote:
> 
>> For what it's worth, I was working at 4D in Cupertino when 4D Server
>> shipped. We had big arguments in the US office about IP communications and
>> semaphores. (Most people really don't love semaphores.) Semaphores turned
>> out to be the one and only reliable mechanism available. Unless something
>> has changed, that's still going to be true.
> 
> LR addressed that question directly at a Summit - don't know the year but
> it was post-Schaumburg. The only command not susceptible to timeslicing is
> Semaphore.

OK I can accept that.

But what about this:

<>counter_l := <>counter_l + 1

It does not contain any 4D commands. Can that line of code be time sliced, or 
will this line of code run atomically?

Tim

********************************************
Tim Nevels
Innovative Solutions
785-749-3444
[email protected]
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