Is there a way to schedule an event to occur in the future?

Question

I am looking for a generic way to schedule events which are triggered in the future (in LabVIEW without using DAQ).
I already have a way of scheduling future events but it uses a polling thread to keep an eye on the list of times and execute the events and maintain the list. To get higher time resolution it would have to run faster although most of the time there are no events in the queue.
(An 'event' in my queue is currently a cluster of a future time and a boolean control reference).
What I would like to do is queue events (could be user defined events) so that they can be posted at future times without a process having to poll for them.
If I make my polling event wait (e.g. using the ms Timer) then it can't wake up do deal with an event which was queued later but required to be posted sooner.
Any clues?
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Answer 1

magicbean wrote:
To get higher time resolution it would have to run faster although most of the time there are no events in the queue.
What time resolution do you want/need? Please be specific. (milliseconds, seconds, etc.)
magicbean wrote:
If I make my polling event wait (e.g. using the ms Timer) then it can't wake up do deal with an event which was queued later but required to be posted sooner.
I think part of the confusion is your generic use of the word "event", while events have a very defined special meaning in LabVIEW. "Polling event" is a contradiction.
So, first of all, do you even use event structures? Can you show us some code? There is probably an easy solution.
For example you could look at the array of scheduled tasks and recalculate a new timeout value for an event structure whenever a new task is added or whenever a task has just executed. No polling needed. In the timeout event, determine which task is ready to execute and launch it. (e.g. via a queue or similar). 
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