Answered: Identify the values of pid at lines A,…

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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Identify the values of pid at lines A, B, Cand D in the following program. (Assume that the actual the parent and child are 2600 and 2603, respectively.)
#include <sys/types.h> #include <stdio.h> #include <unistd.h>
int main ()
{
pid_t pid, pidi;
* fork a child process */
pid = fork();
if (pid < 0) { /* error occurred */ fprintf (stderr, "Fork Failed");
return 1;
}
else if (pid == 0) { /* child process */
pid1 = getpidO;
printf ("child: pid = %",pid); /* A */
printf ("child: pid1 = %" ,pid1); /* B */
else { /* parent process */ pid1 - getpid();
printf ("parent: pid = %d" ‚pid); /* C / printf ("parent: pid1 = %" ‚pid1); / D */ wait (NULL);
return 0;

}

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