Q-5: A semaphore for a resource with four channels is defined by the following structure (after multiple operations running for some time ending with the three waits shown below) Process 100: wait( s1); Process 101: wait(s); Process 105: wait(s1); This produces the current values of the semaphore as: semaphore s1 { } value = -3; *list={100, 101, 105) // processes will be awakened in order from left to right Describe how the semaphore value and list change for the following sequences: What is *list and value? What is list and value? Process 111: signal(s); Process 91: signal(s1); Process 110: wait(s); Process 95: signal(sl); Process 113: signal(sl); What is *list and value? What is *list and value? What is *list and value? For this does it make sense that Process 105 can execute a signal function? Process 105: signal(sl); What is list and value?

Q-5: A semaphore for a resource with four channels is defined by the following structure (after multiple operations running for some time ending with the three waits shown below) Process 100: wait( s1); Process 101: wait(s); Process 105: wait(s1); This produces the current values of the semaphore as: semaphore s1 { } value = -3; list={100, 101, 105) // processes will be awakened in order from left to right Describe how the semaphore value and list change for the following sequences: What is list and value? What is list and value? Process 111: signal(s); Process 91: signal(s1); Process 110: wait(s); Process 95: signal(sl); Process 113: signal(sl); What is list and value? What is list and value? What is *list and value? For this does it make sense that Process 105 can execute a signal function? Process 105: signal(sl); What is list and value?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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