Is it conceivably useful for a port to have several receivers?
What will be an ideal response?
If several processes share a port, then it must be possible for all of the messages that arrive on that port to be
received and processed independently by those processes.
Processes do not usually share data, but sharing a port would requires access to common data representing the
messages in the queue at the port. In addition, the queue structure would be complicated by the fact that each
process has its own idea of the front of the queue and when the queue is empty.
Note that a port group may be used to allow several processes to receive the same message.
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