Hi Richard,
It seems to be correct to assume that getting a property from a stack
whose destroystack property has been set to true does not cause that
stack to stay in memory. I tried the following in the message box:
answer file ""; get the bla of stack it; put the openstacks
and the selected stack file is not among the lines of the openstacks.
(Dave, I think your reply in this matter is not correct, unless I
overlook something).
If you delete a stack, you completely remove it from memory. If the
stack happens to be a substack of a mainstack, that substack is also
deleted. This means that you can only safely delete mainstacks.
As far as I know, you cannot purge a substack without either purging
the mainstack or actually deleting the substack.
Best,
Mark
--
Economy-x-Talk
Consultancy and Software Engineering
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Op 30-okt-2006, om 17:48 heeft Richard Gaskin het volgende geschreven:
I'm working with a client on a system that makes extensive use of
data stored in custom properties.
I had been under the impression that as long as the stack
containing the data has its destroyStack set to true, and as long
as we don't open the stack, everytime we access its properties
we're getting it fresh from disk rather than from cached memory.
Is that correct?
We're in the process of pinning down some anomalies in our system
which would seem to suggest that accessing properties can cause a
stack to remain in memory such that subsequent accesses are
obtained from memory rather than from disk.
I would love to be wrong, as it would complicate our system to have
to manually purge each stack before accessing it.
And as for that purging, in the absence of a purge command there is
the workaround of using the delete command, but at the moment my
memory's flakey: does using "delete stack" merely purge the stack
but not delete the actual stack if it's a mainStack, or if it's a
substack?
And once we confirm which type of stack we can safely purge without
deleting it using the "delete stack" command, what method do we use
to purge stacks of the other kind?
--
Richard Gaskin
Fourth World Media Corporation
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