RE: [LIP] fork()...

So that you could determine whether you are in the child or the parent
process.

if (!fork ()) {
	/* this is the code that the child is supposed to run, use getpid to
get the process id */
	/* you would proabably want to exec something here */
}
/* parent code runs here */

At fork a new child process is created with exactly the same process image
as the parent, now the only way to tell whether you are a child or parent
process is by examining the return code from fork. In the child process it
returns 0 and in the parent process it returns the childs process id.

$ man 3 fork


Uday K Verma 

-----Original Message-----
From: linux-india-programmers-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
[mailto:linux-india-programmers-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of
Sameer Oak
Sent: Wednesday, April 21, 2004 08:59 AM
To: linux-india-programmers-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: [LIP] fork()...


why does a fork() system call return 0 to the newly created child process?
-
sameer oak.

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