Get or enumerate properties of a peer queue Queue. If Property is a variable, the properties of the queue will be enumerated on backtracking. Otherwise, if Property is a property name, the value for that property for Queue is unified with Value. The properties are:
type type of queue:
sync(SId): synchronous queue
SId is Socket Id for remote peers,
Stream Id for the embedded peer
async: asynchronous queue
direction direction of queue:
fromec: from ECLiPSe to remote
toec: to ECLiPSe from remote
bidirect: bidirectional
peer_type type of the peer that Queue belongs to:
embed : for embedded peer
remote : for remote peer
peer_name name of the peer that Queue belongs to.