Hi 1.I want to know what is the main difference between queues and mailbox,what are the advantages of them. 2.What is the advantage of mailbox over FIFO. Thanks and regards, Imran

A mailbox is a built-in class around a queue that uses semaphores to control access to the ends of a queue. A mailbox only has FIFO element ordering whereas you can access the head, tail, or middle elements of a queue. You typically use a mailbox when there are multiple threads reading and writing …