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In Figure 3, Process A leaves its critical section and executes the signal instruction. What would the Mutex (Semaphore) value and the Mutex List contain after exiting the signal calling? Mutex value = • Mutex List contains Mutual Exclusion Achieved Through Semaphores Mutex Value wait (mutex) { value = value - 13; Mutex List signal (mutex) { value = value + 1; if (value <- 0) { remove process from list; wake up process; В С if (value < 0) { add process to list; block process; -2 Process A Process B Process C start start start wait (mutex); BLOCKEDBEOCKED critical section signal (mutex); do remainder critical section signal (mutex); do remainder critical section signal (mutex); do remainder

In Figure 3, Process A leaves its critical section and executes the signal instruction. What would the Mutex (Semaphore) value and the Mutex List contain after exiting the signal calling? Mutex value = • Mutex List contains Mutual Exclusion Achieved Through Semaphores Mutex Value wait (mutex) { value = value - 13; Mutex List signal (mutex) { value = value + 1; if (value <- 0) { remove process from list; wake up process; В С if (value < 0) { add process to list; block process; -2 Process A Process B Process C start start start wait (mutex); BLOCKEDBEOCKED critical section signal (mutex); do remainder critical section signal (mutex); do remainder critical section signal (mutex); do remainder

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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In Figure 3, Process A leaves its critical section and executes the signal instruction. What would the Mutex (Semaphore) value and the Mutex List contain after exiting the signal calling? • Mutex value = • Mutex List contains Mutual Exclusion Achieved Through Semaphores Mutex Value Mutex List wait (mutex) signal (mutex) { value = value + 1; { value = value - 1; %3D -2 BC if (value < 0) { add process to list; block process; if (value <= 0) { remove process from list; wake up process; Process A Process B Process C start start start wait (mutex); critical section signal (mutex); BLOCKEDBLOCKED critical section signal (mutex); do remainder critical section signal (mutex); do remainder do remainder
Transcribed Image Text:In Figure 3, Process A leaves its critical section and executes the signal instruction. What would the Mutex (Semaphore) value and the Mutex List contain after exiting the signal calling? • Mutex value = • Mutex List contains Mutual Exclusion Achieved Through Semaphores Mutex Value Mutex List wait (mutex) signal (mutex) { value = value + 1; { value = value - 1; %3D -2 BC if (value < 0) { add process to list; block process; if (value <= 0) { remove process from list; wake up process; Process A Process B Process C start start start wait (mutex); critical section signal (mutex); BLOCKEDBLOCKED critical section signal (mutex); do remainder critical section signal (mutex); do remainder do remainder
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