Suppose you implement the following lock:1 void init() {flag = 0;23 }45 void lock () {while (TestAndSet (&flag, 1) == 1)yield (); // give up the CPU6.78 }9.10 void unlock () {11flag = 0;12 }Which of the following goals of a "good" locking scheme could using yield () incombination with test-and-set violate? Choose all that apply.ProgressBounded waitingPerformanceMutual exclusion

All the given options are correct which means that Progress, Bounded waiting, Performances, Mutual…

Answered: Which of the following goals of a…

Which of the following goals of a "good" locking scheme could using yield () in combination with test-and-set violate? Choose all that apply. Progress Bounded waiting Performance Mutual exclusion

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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Question

Suppose you implement the following lock:
1 void init() {
flag = 0;
2
3 }
4
5 void lock () {
while (TestAndSet (&flag, 1) == 1)
yield (); // give up the CPU
6.
7
8 }
9.
10 void unlock () {
11
flag = 0;
12 }
Which of the following goals of a "good" locking scheme could using yield () in
combination with test-and-set violate? Choose all that apply.
Progress
Bounded waiting
Performance
Mutual exclusion

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