GenerateConnectionFlowEntries generates data with one entry for each of nConnections Create the entries in a predictable manner so that the first K entries in each call to the function reproduce the same connection.

InitExitChannel and CloseExitChannel are needed for some tests.

NewMultiOrderedMap returns an initialized MultiOrderedMap.

If maxEntries is non-zero, this limits the number of entries in the cache to the number specified.