occurs when a process may never be removed from the semaphore queue in which it is suspended: O Priority inversion O Indefinite blocking O Spinlock O Deadlock
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- A queue and a deque data structure are related concepts. Deque is an acronym meaning "double-ended queue." With a deque, you may insert, remove, or view from either end of the queue, which distinguishes it from the other two. Use arrays to implement a dequePart I: Counting Semaphore struct semaphore { int count; queueType queue; }; void semWait (semaphore s) s.count--; if (s.count < 0) { /* place this process in s.queue */; /* block this process */; void semSignal (semaphore s) s.count++; if (s.count<= 0) ( /* remove a process P from s.queue */; /* place process P on ready list */; Figure 1. A simple program structure of counting semaphore primitives. Questions: 1. In your perspective, what makes counting semaphore primitives a good concurrency mechanism? 2. How does the structure of counting semaphore primitives differ from binary semaphore primitives?Monitors: Select all of the following statements that are true. Only one process can be active in the monitor at a time. The Urgent Queue stores suspended processes that are waiting on a specific condition. When the "Signal and Continue"-approach (Mesa semantics) is applied, the signaling process P is placed on the Urgent Queue. A process enters the monitor by calling one of its monitor procedures. The Mesa semantics leads to a more efficient implementation and reduces the number of context switches. Monitors and semaphores are equally powerful from a theoretical point of view.
- Part II: Binary Semaphore struct binary_semaphore enum (zero, one} value; queueType queue; void semwaitB (binary_semaphore s) if (s.value -- one) s.value - zero; else { /* place this process in s.queue */; /* block this process */: void semsignalB (semaphore s) if (s.queue is empty ()) s.value - one; else { /* remove a process P from s.queue /* place process P on ready list */; Figure 2. A simple program structure of binary semaphore primitives. Questions: 3. Briefly explain the purpose of the semWaitB and semSignalB functions in Figure 2. 4. Based on Figures 1 and 2, which semaphore structure is easier to implement and why?C++ A queue is essentially a waiting list. It’s a sequence of elements with a front and a back. Elements can only be added to the back of the queue and they can only be removed from the front of the queue. Elements are kept in order so that the first element to enter the queue is the first one to leave it.A data structure called a deque is closely related to a queue. Deque is an acronym meaning "double-ended queue." With a deque, you may insert, remove, or view from either end of the queue, which distinguishes it from the other two. Utilise arrays to implement a deque
- class PrintManager def initialize @queue = Queue.new end def queue_print_job (document) @queue. enqueue (document) end def run # Each time this Loop runs, we read the document # at the front of the queue: while @queue.read #We dequeue the document and print it: print (@queue.dequeue) end end private end def print (document) # Code to run the actual printer goes here. # For demo purposes, we'll print to the terminal: puts document end We can then utilize this class as follows: print_manager PrintManager.new print_manager.queue_print_job("First Document") print_manager.queue_print_job ( "Second Document") print_manager.queue_print_job("Third Document") print_manager.runjava data structure Queue: Q4: A program performs the following operations on an empty queue Q: Q.enqueue(24) Q.enqueue(74) Q.enqueue(34) Q.first() Q.dequeue() Q.enqueue(12) Q.dequeue() Please show the queue contents at the end of these operations. Clearly show the front of the queue.Explain how a queue works along with the enqueue and dequeue operations with front and rear pointers.
- Suppose the following operations are performed on an empty queue:enqueue(5);enqueue(?);dequeue();enqueue(9);enqueue ( 12);dequeue();enqueue(10);Insert numbers in the following diagram to show what will be stored in the staticqueue after the operations have executed .front rearElections Problem Description Elections are going on, and there are two candidates A and B, contesting with each other. There is a queue of voters and in this queue some of them are supporters of A and some of them are supporters of B. Many of them are neutral. The fate of the election will be decided on which side the neutral voters vote. Supporters of A and supporters of B make attempt to win the votes of neutral voters. The way this can be done is explained below: 1. The voter queue is denoted by three characters, viz {-, A, B}. The - denotes neutral candidate, A denotes supporter of candidate A and B denotes supporter of candidate B. 2. Supporters of A can only move towards the left side of the queue. 3. Supporters of B can only move towards the right side of the queue. 4. Since time is critical, supporters of both A and B will move simultaneously. 5. They both will try and influence the neutral voters by moving in their direction in the queue. If supporter of A reaches the…You need to implement a class named "Queue" that simulates a basic queue data structure. The class should have the following methods: Enqueue(int value) - adds a new element to the end of the queue Dequeue() - removes the element from the front of the queue and returns it Peek() - returns the element from the front of the queue without removing it Count() - returns the number of elements in the queue The class should also have a property named "IsEmpty" that returns a boolean indicating whether the queue is empty or not. Constraints: The queue should be implemented using an array and the array should automatically resize when needed. All methods and properties should have a time complexity of O(1) You can write the program in C# and use the test cases to check if your implementation is correct. An example of how the class should be used: Queue myQueue = new Queue(); myQueue.Enqueue(1); myQueue.Enqueue(2); myQueue.Enqueue(3); Console.WriteLine(myQueue.Peek()); // 1…
