Assuming that the following semaphore operations are performed in a program, determine if the program will...

Transcribed Image Text:

Assuming that the following semaphore operations are performed in a program, determine if the program will block. Explain your answer. The initial value of the semaphore is 2. wait (S); signal (S); wait (S); wait (S); wait (S); Solution: Exercise 2 In the following code, three processes print out letters using pute and synchronize using two semaphores L (initialized to 3) and R (initialized to 0). Process 1 while( true) ( wait (L); pute('C'); signal (R) ; Process 2 while( true) ( wait (R); putc ('A'); pute('B'); signal (R); Process 3 while(true) ( wait (R); pute('D'); } (a) Is CABABDDCABCABD a possible output sequence from this set of processes? (b) Is CABACDBCABDD a possible output sequence from this set of processes? Assuming that the following semaphore operations are performed in a program, determine if the program will block. Explain your answer. The initial value of the semaphore is 2. wait (S); signal (S); wait (S); wait (S); wait (S); Solution: Exercise 2 In the following code, three processes print out letters using pute and synchronize using two semaphores L (initialized to 3) and R (initialized to 0). Process 1 while( true) ( wait (L); pute('C'); signal (R) ; Process 2 while( true) ( wait (R); putc ('A'); pute('B'); signal (R); Process 3 while(true) ( wait (R); pute('D'); } (a) Is CABABDDCABCABD a possible output sequence from this set of processes? (b) Is CABACDBCABDD a possible output sequence from this set of processes?

Answer rating: 100% (QA)

The image shows a programming problem related to semaphores and synchronization among multiple processes along with a proposed output sequence for the ... View the full answer