Update either dataset or array

[pturmel]

@Ryan_Deardorff

def getQueue(name, capacity=4000):
	if not system.util.getGlobals().has_key(name):
		return LinkedBlockingQueue(capacity)
	return system.util.getGlobals()[name]
	
def setQueue(name, q):
	system.util.getGlobals()[name] = q

Those are racy and prone to memory leaks. Always use .setdefault to reliably initialize a value in a dictionary when a check for the key's presence fails. When the value is an object that will be used all over the library, use the .setdefault technique to establish it as a top-level variable in the library.

Study this topic for the techniques needed to avoid crashing your gateway:

Java concurrent queue for tag change scripts

Continuing the discussion from [SOLVED] Are tag Value Changed scripts running asynchronously?: We've got code in our standard library that I need to log a value change on a tag and then associate various data points with that value change. The value is located in a UDT, and because this is part of our "standard" library we use for our customers, the number of tags is variable and quite possibly numerous so having a gateway tag event script isn't feasible for this solution. I was reading up on …

If you cannot use my globalVarMap(), you have to approximate it with an extra layer in system.util.getGlobals().