Well, TCP is stream oriented and unicast, but doesn't take much to conceive a message oriented protocol that does anycasting. As a real world example of anycas

Well, TCP is stream oriented and unicast, but doesn't take much to conceive a message oriented protocol that does anycasting. As a real world example of anycasting queue that I'm sure you have used, consider the queue behind accept(2) or pthread_condition_wait.