Waiting for a child to die

#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <sys/wait.h>

int main()
{
	pid_t child =3D 0;
	int status =3D 0;
	printf("forking!\n");

	child =3D fork();
	if(child =3D=3D 0)
	{
		printf("Inside child\n");
		sleep(2);
		printf("Finishing if\n");
	}
	else
	{
		printf("Inside Parent\n");
		while(1)
		{
			printf("Calling waitpid\n");
			waitpid(child, &status, 0);
			if(WIFEXITED(status))
			{
				printf("Child exited\n");
				break;
			}
		}
		printf("Finishing else\n");
	}
}


The above code works perfectly, the parent waits for the child to die
& then exits itself.

root@Warrior:~/junk# ./child
forking!
Inside child
Inside Parent
Calling waitpid
Finishing if
Child exited
Finishing else
root@Warrior:~/junk#


However, how do i make this wait by the parent a non-blocking wait?
This is because while checking for "has the child died", parent is
blocked by waitpid & hence cannot do other processing.

I've tried using WNOHANG in waitpid as waitpid(child, &status,
WNOHANG) & this is the output i get

root@Warrior:~/junk# ./child
forking!
Inside child
Inside Parent
Calling waitpid
Child exited
Finishing else
root@Warrior:~/junk#
root@Warrior:~/junk# Finishing if
root@Warrior:~/junk#

Notice that parent exited before child died.

Am i using WNOHANG in a wrong way? or in a wrong place? What can be
other strategies i can use? I dont want to use threads as they'll be
an overkill (all i want to do is keep parent in non-blocking state,
while looping for child's alive status).


--
regards,
makuchaku
---
http://makuchaku.info
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-- Valmik Thapar, Wildlife Conservationist.