/*
 * example.c
 *
 *  Created on: Sep 7, 2018
 *      Author: cs3841
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <time.h>

static void capitalize();
static void interact();

int main(int argc, char* argv[]) {
	int pid = getpid();
	printf("pid: %d\n",pid);

	// Create the pipe BEFORE forking so both processes get a copy
	int pipe_to_child[2];
	int pipe_to_parent[2];
	pipe(pipe_to_child);
	pipe(pipe_to_parent);

	int child_pid = fork();

	// TODO: Handle case where fork fails.
	if(child_pid == 0) {
		printf("C: I'm the child. my pid: %d\n", getpid());
		capitalize(pipe_to_child, pipe_to_parent);
	} else {
		printf("P: I'm the parent. my pid: %d, child pid: %d\n", getpid(), child_pid);
		interact(pipe_to_child, pipe_to_parent);
		// TODO: Wait for child to complete.
	}
}

/**
 * Capitalize the received text and send it back to the parent
 */
void capitalize() {
	printf("C: Capitalizing\n");
}

/**
 * Ask the user to enter text and display the capitalized text to the user.
 */
void interact() {
	printf("P: Interacting with user\n");
}