A semaphore currently has the value 3. A process that attempts to subtract 4 from this semaphore will: options: A continue without waiting, producing a value of -1 for the semaphore B continue without waiting, producing a value of 0 for the semaphore C wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value D wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value

A semaphore currently has the value 3. A process that attempts to subtract 4 from this semaphore will: options: A continue without waiting, producing a value of -1 for the semaphore B continue without waiting, producing a value of 0 for the semaphore C wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value D wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter19: Probabilistic Dynamic Programming

Section19.4: Further Examples Of Probabilistic Dynamic Programming Formulations

Problem 7P

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A	continue without waiting, producing a value of -1 for the semaphore
B	continue without waiting, producing a value of 0 for the semaphore
C	wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value
D	wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value