A small question about fork( )
Hello experts,
I am using fork() in my code but I am confused which output comes first child or parent?
I did the following code .My book shows parent first but my linux shows child first.Can anyone tell me why?
Code:
Code:
#include <stdio.h>
int main(){
int pid;
printf("I am original process with pid is %d ,My parent (Terminal) pid is %d\n",getpid(),getppid());
pid=fork();
if(pid>0)//parent starts
{
printf("I am parent,my pid is %d and my parent pid is %d\n",getpid(),getppid());
}
else
{
printf("I am child,my pid is %d and my parent pid is %d\n",getpid(),getppid());
}
//both parent and child executes the next printf
printf("PID %d terminates \n",getpid());
}
output:
Code:
mlhazan@dEBx:~/Desktop$ gcc myFork.c
mlhazan@dEBx:~/Desktop$ ./a.out
I am original process with pid is 13426 ,My parent (Terminal) pid is 28555
I am child,my pid is 13427 and my parent pid is 13426
PID 13427 terminates
I am parent,my pid is 13426 and my parent pid is 28555
PID 13426 terminates
mlhazan@dEBx:~/Desktop$
