1. Write a program that uses UNIX system calls to "ping-pong" a byte between two processes over a pair of pipes, one for each direction. Measure the program's performance, in exchanges per second.

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
icon
Related questions
Question
1. Write a program that uses UNIX system calls to "ping-pong" a byte between two processes over
a pair of pipes, one for each direction. Measure the program's performance, in exchanges per
second.
2. Answer Memory Allocation Question below
void func() {
int x; // declares an integer on the stack
}
void func() {
int x = (int) malloc(sizeof (int));
}
#include <stdlib.h>
void malloc(size_t size);
double d = (double *) malloc(sizeof (double));
int x = malloc (10+ sizeof(int));
printf("%d\n", sizeof(x));
Note: allocating and freeing memory is
fraught with possible errors.
Can you explain?
See text section 14.4 for important
caveats.
int x[10];
printf("%d\n", sizeof(x));
Transcribed Image Text:1. Write a program that uses UNIX system calls to "ping-pong" a byte between two processes over a pair of pipes, one for each direction. Measure the program's performance, in exchanges per second. 2. Answer Memory Allocation Question below void func() { int x; // declares an integer on the stack } void func() { int x = (int) malloc(sizeof (int)); } #include <stdlib.h> void malloc(size_t size); double d = (double *) malloc(sizeof (double)); int x = malloc (10+ sizeof(int)); printf("%d\n", sizeof(x)); Note: allocating and freeing memory is fraught with possible errors. Can you explain? See text section 14.4 for important caveats. int x[10]; printf("%d\n", sizeof(x));
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Types of Protocols
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education