Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place andldquo;itemandrdquo; into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer?

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Consider the following producer and consumer code.

# define N = 100

int mutex = 1; // Binary semaphore variable

int empty = N; // Counting semaphore variable

int full = 0; // counting semaphore variable

------------------

Void producer ( )

{

int item;

while (1)

{

item=producer-item();

down (empty);

down (mutex);

insert_item (item);

up (mutex);

up (full);

}

-----------------

Void consumer ( )

{

int item;

while (1)

{

down (mutex);

down (full);

item=consume_item();

up (mutex);

up (empty);

}

--------------

In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.

Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?

a)
Satisfies mutual exclusion and no deadlock occurs
b)
Satisfies mutual exclusion but deadlock may occurCorrect Answer
c)
Not satisfies mutual exclusion and no deadlock
d)
Not satisfies mutual exclusion but deadlock may occur

Correct answer is option 'B'. Can you explain this answer?

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Verified Answer

Consider the following producer and consumer code.# define N = 100int ...

Given code correctly implemented to solve the mutual exclusion but producer and consumer may enter the deadlock.

Deadlock may occur; if consumer executes first down (mutex) and then down (turn), consumer goes to block mode. Now producer executes down (empty) and then down (mutex), producer goes to block mode. Deadlock may occur due to the above executions when buffer is initially empty.

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Most Upvoted Answer

Consider the following producer and consumer code.# define N = 100int ...

Explanation:

1. Mutual Exclusion:
- The code satisfies mutual exclusion as the producer and consumer access the critical section using the mutex semaphore.
- The down(mutex) function ensures that only one process can access the critical section at a time.

2. Possibility of Deadlock:
- Deadlock may occur in this code due to the way semaphores are being used.
- The consumer process first acquires the mutex semaphore and then tries to acquire the full semaphore. At the same time, the producer process may be waiting to acquire the mutex semaphore.
- If the producer process is blocked waiting for the mutex semaphore, and the consumer process is waiting for the full semaphore, a deadlock situation can arise where both processes are waiting for each other to release a semaphore.

Conclusion:
- The code satisfies mutual exclusion but may lead to a deadlock situation due to the way semaphores are being used.
- To prevent deadlock, the code needs to be modified to avoid such scenarios where processes can block indefinitely waiting for a semaphore.

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Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer?

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Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer?.

Solutions for Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE. Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.

Here you can find the meaning of Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Consider the following producer and consumer code.# define N = 100int mutex = 1; // Binary semaphore variableint empty = N; // Counting semaphore variableint full = 0; // counting semaphore variable------------------Void producer ( ) {int item;while (1){item=producer-item();down (empty);down (mutex);insert_item (item);up (mutex);up (full);}}-----------------Void consumer ( ){int item;while (1){down (mutex);down (full);item=consume_item();up (mutex);up (empty);}}--------------In the above code mutex, empty and full are semaphore shared variables and item is local to the both producer and consumer.Inser_item (item) function will place “item” into buffer and consume_item function removes an item from the buffer. Which of the following holds by the code?a)Satisfies mutual exclusion and no deadlock occursb)Satisfies mutual exclusion but deadlock may occurCorrect Answerc)Not satisfies mutual exclusion and no deadlockd)Not satisfies mutual exclusion but deadlock may occurCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice GATE tests.

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