how to create a zombie process in linux

Mayura Sandakalum answered on October 22, 2022 Popularity 7/10 Helpfulness 2/10

answer how to create a zombie process in linux

how to create a zombie process in linux

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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
 
int main ()
{
  pid_t child_pid;
  int child_status;
 
  child_pid = fork ();
  if (child_pid > 0) {
    // parent process will sleep for 30 seconds and exit, without a call to wait()
    fprintf(stderr,"parent process - %d\n", getpid());    
    sleep(30); 
    exit(0);
  }
  else if (child_pid == 0) {
    // child process will exit immediately
    fprintf(stderr,"child process - %d\n", getpid());
    exit(0);    
  }
  else if (child_pid == -1) {
    // fork() error
    perror("fork() call failed");    
    exit (-1);
  }
  else {
    // this should not happen
    fprintf(stderr, "unknown return value of %d from fork() call", child_pid);
    exit (-2);
  }
  return 0;
}

Popularity 7/10 Helpfulness 2/10 Language shell

Source: stackpointer.io

Tags: linux shell zombie-process

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Contributed on Oct 22 2022

Mayura Sandakalum

0 Answers Avg Quality 2/10

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