Consider the unbounded queue implementation shown in Fig. 10.21. This queue is blocking, meaning that the deq
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Question:
The queue has two fields: items is a very large array, and tail is the index of the next unused element in the array.
1. Are the enq () and deq () methods wait-free? If not, are they lock-free? Explain.
2. Identify the linearization points for enq () and deq(). (Careful! They may be execution-dependent.)
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