philosophers

My attemt on solving philosophers problem

Each one of the three programs is built using make

Also each is started by

./philo_(one|two|three) <number of philosophers> <time to die (ms)> <time to eat (ms)> <time to sleep (ms)> [minimum times to eat]

Rules

There are some number of philosophers sitting around the table. They can only do one action at a time: eat, sleep, think. Each one does these action in a cycle.

To eat a philosopher needs two exactly two forks. Number of forks equals number of philosophers. If a philosopher does not eat <time to die> ms, he dies and simulation stops. Simulation also stops when all the philosophers ate at least [minimum time to eat] if specified.

philo_one

Each philosopher is a thread. Forks are placed between philosophers. Syncronization is acomplished using mutexes.

philo_two

Each philosopher is a thread. Forks are taken from a pool. Syncronization is acomplished using semaphores.

philo_three

Same as previous but each philosopher is a process