Starting Out with C++ from Control Structures to Objects, Student Value Edition plus MyProgrammingLab with Pearson eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133862232
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 17, Problem 22RQE
Program Plan Intro
Linked list:
Linked list is a linear and dynamic data structure which is used to organize data; it contains sequence of elements which are connected together in memory to form a chain. The every element of linked list is called as a node.
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(c) Consider the following set of processes:
Process ID
Arrival Time Priority
Burst Time
A
2
3
100
B
6
C
10
1 (highest)
2
40
80
D
16
4 (lowest)
20
(3e) Test-and-Set. The Test-and-Set instruction is used in hardware to achieve synchronization.
It can be defined in the following way:
function Test-and-Set (var target: boolean): boolean;
begin
Test-and-Set:= target;
target := true;
end;
Now show how the Test-and-Set instruction can be used to protect a critical region and hence
achieve mutual exclusion (do not worry about satisfying the bounded waiting condition).
(8 points)
repeat
Consider a system with three smoker processes and one agent process. Each smoker
continuously rolls a cigarette and then smokes it. But to roll and smoke a cigarette, the smoker
needs three ingredients: tobacco, paper and matches. One of the smoker processes has paper,
another has tobacco and the third has the matches. The agent has an infinite supply of all three
materials. The agent places two of the ingredients on the table. The smoker who has the
remaining ingredient then makes and smokes a cigarette, signaling the agent on completion. The
agent then puts out another two of the three ingredients, and the cycle repeats.
Given below is a solution to the Cigarette-Smokers Problem. Give initial conditions for the semaphores as
well as plausible values for the variables i & j and r & s, such that the agent and smokers are synchronized.
Write a couple of sentences on why these initial conditions are necessary and sufficient.
Solution:
var a: array [0..2] of semaphore (initial condition =…
Chapter 17 Solutions
Starting Out with C++ from Control Structures to Objects, Student Value Edition plus MyProgrammingLab with Pearson eText -- Access Card Package (8th Edition)
Ch. 17.1 - Prob. 17.1CPCh. 17.1 - Prob. 17.2CPCh. 17.1 - Prob. 17.3CPCh. 17.1 - Prob. 17.4CPCh. 17.2 - Prob. 17.5CPCh. 17.2 - Prob. 17.6CPCh. 17.2 - Prob. 17.7CPCh. 17.2 - Prob. 17.8CPCh. 17.2 - Prob. 17.9CPCh. 17.2 - Prob. 17.10CP
Ch. 17 - Prob. 1RQECh. 17 - Prob. 2RQECh. 17 - Prob. 3RQECh. 17 - Prob. 4RQECh. 17 - Prob. 5RQECh. 17 - Prob. 6RQECh. 17 - Prob. 7RQECh. 17 - Prob. 8RQECh. 17 - Prob. 9RQECh. 17 - Prob. 10RQECh. 17 - Prob. 11RQECh. 17 - Prob. 13RQECh. 17 - Prob. 14RQECh. 17 - Prob. 15RQECh. 17 - Prob. 16RQECh. 17 - Prob. 17RQECh. 17 - Prob. 18RQECh. 17 - Prob. 19RQECh. 17 - Prob. 20RQECh. 17 - Prob. 21RQECh. 17 - Prob. 22RQECh. 17 - Prob. 23RQECh. 17 - Prob. 24RQECh. 17 - Prob. 25RQECh. 17 - T F The programmer must know in advance how many...Ch. 17 - T F It is not necessary for each node in a linked...Ch. 17 - Prob. 28RQECh. 17 - Prob. 29RQECh. 17 - Prob. 30RQECh. 17 - Prob. 31RQECh. 17 - Prob. 32RQECh. 17 - Prob. 33RQECh. 17 - Prob. 34RQECh. 17 - Prob. 35RQECh. 17 - Prob. 1PCCh. 17 - Prob. 2PCCh. 17 - Prob. 3PCCh. 17 - Prob. 4PCCh. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PCCh. 17 - List Template Create a list class template based...Ch. 17 - Prob. 9PCCh. 17 - Prob. 10PCCh. 17 - Prob. 11PCCh. 17 - Prob. 12PCCh. 17 - Prob. 13PCCh. 17 - Prob. 14PCCh. 17 - Prob. 15PC
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