Question: Sleeping Barber Problem. Fill out the 7 tables on the right after each semaphore and then answer the questions as the bottom. AZWRS BR CR

 Sleeping Barber Problem. Fill out the 7 tables on the right

Sleeping Barber Problem. Fill out the 7 tables on the right after each semaphore and then answer the questions as the bottom. AZWRS BR CR AZWRS Queue BR Queue CR Queue NFWRS Barber 1 Barber 2 Customer1 Customer 2 Customer 3 ICustomer 4 semwait(A2WRS) sem Wait(A2WRS) sem Wait(CR) if(NFWRS>0) NFWRS -= 1; semSignal(CR) sem Wait(AZWRS) semwait(A2WRS) semSignal(AZWRS) if(NFWRS>0) NFWRS -= 1; sem Signal(CR) sem Signal(A2WRS) if(NFWRS>) NFWRS -= 1; semSignal(AZWRS) NFWRStal semSignal(BR) 16 semSignal(A2WRS) 17 semwait(AZWRS) if(NFWRS>) NEWRS -= 1; semSignal(CR) 20 semSignal( A2WRS) 21 semWait(CR) 22 semWait(A2WRS) 23 NFWRS+=1 24 semSignal (BR) 25 semSignal(AZWRS) 261 27 semwait(BR) sem Wait(BR) 1. How many people/processes were involved with the barbershop? 2. How many people were completely done getting a haircut at the end of the code stepthrough? 3. How many people were still waiting to get their hair cut? 4. How many people walked out? (Why?) Sleeping Barber Problem. Fill out the 7 tables on the right after each semaphore and then answer the questions as the bottom. AZWRS BR CR AZWRS Queue BR Queue CR Queue NFWRS Barber 1 Barber 2 Customer1 Customer 2 Customer 3 ICustomer 4 semwait(A2WRS) sem Wait(A2WRS) sem Wait(CR) if(NFWRS>0) NFWRS -= 1; semSignal(CR) sem Wait(AZWRS) semwait(A2WRS) semSignal(AZWRS) if(NFWRS>0) NFWRS -= 1; sem Signal(CR) sem Signal(A2WRS) if(NFWRS>) NFWRS -= 1; semSignal(AZWRS) NFWRStal semSignal(BR) 16 semSignal(A2WRS) 17 semwait(AZWRS) if(NFWRS>) NEWRS -= 1; semSignal(CR) 20 semSignal( A2WRS) 21 semWait(CR) 22 semWait(A2WRS) 23 NFWRS+=1 24 semSignal (BR) 25 semSignal(AZWRS) 261 27 semwait(BR) sem Wait(BR) 1. How many people/processes were involved with the barbershop? 2. How many people were completely done getting a haircut at the end of the code stepthrough? 3. How many people were still waiting to get their hair cut? 4. How many people walked out? (Why?)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!