Answered: what is main disadvantages of this…

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

See similar textbooks

Related questions

Concept explainers

Question

100%

please write with proper explanation.

Question half solution is here please write what is main disadvantages of this approach?

Half solve questions:

Mutual Exclusion:

Mutex is an abbreviation for Mutual Exclusion. It is a programme object that prevents multiple users from accessing a shared resource at the same time. When a process accesses a shared variable, it is said to be in the critical section. When no two processes are present in the critical section at the same time, this is referred to as Mutual Exclusion or Mutex.

while (true)

{

semaphore sem = S;

while (S <= 0) do no operation

{

S = S-1;

wait (S);

}

/*critical section*/

while (S > 0)

{

S = S+1;

signal (S);

}

/*remainder section*/

}

Process synchronization
1. Finish writing of an example of the pseudo-code with a critical section (you have to enter the missing
value or expression instead of dots). Management of the critical section in the example is carried out
using hardware support interrupt enable/disable approach. Demonstrate that this example
guarantees a condition of mutual exclusion. What is the main disadvantage of this approach?
/*Disabling and enabling interrupts*/
while (true)
{
/*Critical section */
***
/*Remainder section*/

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions