The output of the following program has to be as below: Output: 1. Parent process ID : 0 2. Child process ID: .... 3. Grand Child process ID: ... 4. Grand Child process ID: .... 5. Grand Child process ID: ... But when I run the code, the Grand Child processes are not displaying in sequential order as shown in the output. I am trying to write a C program such that the parent process will create one child process and 3 grandchild processes and print their IDs. The Grand Child processes must appear in order of 3,4 and 5. I am attaching my code below. Please tell me what should I change in the code to get the desired output. My Code: #include #include #include #include int main() { printf("1. Parent process ID: %d\n", getpid()); pid_t child; child = fork(); if (child<0) { printf("error"); } else if (child==0) { printf("2. Child process ID: %d\n", getpid()); for (int i=3; i<=5; i++) { pid_t grandchild = fork(); if (grandchild == 0) { printf("%d. Grandchild process ID: %d\n", i, getpid()); break; } } } sleep(1); return 0; }
The output of the following program has to be as below: Output: 1. Parent process ID : 0 2. Child process ID: .... 3. Grand Child process ID: ... 4. Grand Child process ID: .... 5. Grand Child process ID: ... But when I run the code, the Grand Child processes are not displaying in sequential order as shown in the output. I am trying to write a C program such that the parent process will create one child process and 3 grandchild processes and print their IDs. The Grand Child processes must appear in order of 3,4 and 5. I am attaching my code below. Please tell me what should I change in the code to get the desired output. My Code: #include #include #include #include int main() { printf("1. Parent process ID: %d\n", getpid()); pid_t child; child = fork(); if (child<0) { printf("error"); } else if (child==0) { printf("2. Child process ID: %d\n", getpid()); for (int i=3; i<=5; i++) { pid_t grandchild = fork(); if (grandchild == 0) { printf("%d. Grandchild process ID: %d\n", i, getpid()); break; } } } sleep(1); return 0; }
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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The output of the following program has to be as below:
Output:
1. Parent process ID : 0
2. Child process ID: ....
3. Grand Child process ID: ...
4. Grand Child process ID: ....
2. Child process ID: ....
3. Grand Child process ID: ...
4. Grand Child process ID: ....
5. Grand Child process ID: ...
But when I run the code, the Grand Child processes are not displaying in sequential order as shown in the output. I am trying to write a C program such that the parent process will create one child process and 3 grandchild processes and print their IDs. The Grand Child processes must appear in order of 3,4 and 5.
I am attaching my code below. Please tell me what should I change in the code to get the desired output.
My Code:
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
int main() {
printf("1. Parent process ID: %d\n", getpid());
pid_t child;
child = fork();
if (child<0) {
printf("error");
}
else if (child==0) {
printf("2. Child process ID: %d\n", getpid());
for (int i=3; i<=5; i++) {
pid_t grandchild = fork();
if (grandchild == 0) {
printf("%d. Grandchild process ID: %d\n", i, getpid());
break;
}
}
}
sleep(1);
return 0;
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
int main() {
printf("1. Parent process ID: %d\n", getpid());
pid_t child;
child = fork();
if (child<0) {
printf("error");
}
else if (child==0) {
printf("2. Child process ID: %d\n", getpid());
for (int i=3; i<=5; i++) {
pid_t grandchild = fork();
if (grandchild == 0) {
printf("%d. Grandchild process ID: %d\n", i, getpid());
break;
}
}
}
sleep(1);
return 0;
}
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