fork « semaphore « C Q&A

1. How to use multiple fork() running at the same time? and how to use semaphore in c?    stackoverflow.com

I'm working on assignment where the professor is asking for a solution to solve the dinning philosopher problem using semaphores. Here is my code so far:

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

#define MAX_THINKING_TIME ...

2. help with synchronization using mapped memmory, semaphores, fork()    cboard.cprogramming.com

help with synchronization using mapped memmory, semaphores, fork() i want do make synchronization of accesing to mapped memory using semaphores just to demonstrate how semaphores work . point is : when i use fork ill ignore proces with pid == 0 and in PID != 0 i want to do following : this proces taht i will create using fork will ...