CODEWITHSUNDEEP
cprocessfork
Giorgio Di Rocco
Giorgio Di Rocco

Reputation: 129

C - child process of a child process

I have to reproduce a process family like this: father --> child --> grandson. I don't understand why the grandson code is never executed. My code scheme is like this:

int main() {

    int fatherProcess, p1, p2;

    p1 = fork();

    if(p1 <0) {
        perorr("Failed to create P1\n");

    } else if(p1 == 0) {
        //child code
        p2 = fork();


        if(p2 < 0) {
            perorr("Failed to create P2\n");

        } else if(p2 == 0) {
            //grandson code
            pritnf("Hello I'm the GRANDSON\n");

        } else {
            //child code
            pritnf("Hello I'm the CHILD\n");
        }

    } else {
        //father code

        pritnf("Hello I'm the father\n");

    }

    return 0;
}

The stamp that I get is: - Hello I'm the GRANDSON - Hello I'm the father

Upvotes: 0

Views: 57

Answers (1)

Frank AK
Frank AK

Reputation: 1781

You have made two spelling error. I have fixed it and you can try the following code:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>

int main() {

    int fatherProcess, p1, p2;

    p1 = fork();

    if(p1 <0) {
        perror("Failed to create P1\n");

    } else if(p1 == 0) {
        //child code
        p2 = fork();


        if(p2 < 0) {
            perror("Failed to create P2\n");

        } else if(p2 == 0) {
            //grandson code
            printf("Hello I'm the GRANDSON\n");

        } else {
            //child code
            printf("Hello I'm the CHILD\n");
        }

    } else {
        //father code

        printf("Hello I'm the father\n");

    }

    return 0;
}

Your code:

perorr --> perror
pritnf --> printf

Upvotes: 1

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