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I want to write a state machine using queues Meaning :Each state has two or more operations After each operation is there that operation from the given state should be removed ;and only after all operations are done ,the state should be dequeued from the queuue and we should move forward to the next state
Let's visualise that:
Will all of state1 (or state9) operations be completed before any of state2 (state8)?
If so, just enqueue() a bunch of Thread::Queue objects onto a Thread::Queue. Dequeue() them one at a time and dequeue() each operation one at a time and process it. But that isn't a state machine, it's just a pre-serialised series of operations.
If however, it is your intention that the first operation of any of states 1 thru 9 can be processed in any order -- which would make it a state machine -- then you aren't using a queue for the outer level; you are using a random access data structure. Ie. an array.
So, use an array of queues rather than abusing a queue of queues.
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In reply to Re^3: How to create a two dimensional queue in Perl