42Philosophers

In this project, a classic compute problem, i will treat the basics of threading a process. It's showed how to create threads and the basis of mutexes.

Here are the things we need to know if we want to succeed this assignment:

• One or more philosophers sit at a round table. There is a large bowl of spaghetti in the middle of the table.
• The philosophers alternatively eat, think, or sleep. While they are eating, they are not thinking nor sleeping; while thinking, they are not eating nor sleeping; and, of course, while sleeping, they are not eating nor thinking.
• There are also forks on the table. There are as many forks as philosophers.
• Because serving and eating spaghetti with only one fork is very inconvenient, a philosopher takes their right and their left forks to eat, one in each hand.
• When a philosopher has finished eating, they put their forks back on the table and start sleeping. Once awake, they start thinking again. The simulation stops when a philosopher dies of starvation.
• Every philosopher needs to eat and should never starve.
• Philosophers don’t speak with each other.
• Philosophers don’t know if another philosopher is about to die.
• No need to say that philosophers should avoid dying!

Schema

Use:

🚧 project:

42Philosophers/philos $ make

🚿 Clean Obj files:

42Philosophers/philos $ make clean

🚿 🚿 Clean All (obj files + binary):

42Philosophers/philos $ make fclean

🚿 🚿 🚧 Clean All + build:

42Philosophers/philos $ make re

🏍 RUN:

42Philosophers/philos $ ./philo arg1 arg2 arg3 arg4*

arg1: number_of_philosophers
arg2: time_to_die
arg3: time_to_eat
arg3: time_to_sleep
arg4*: number_of_times_each_philosopher_must_eat (optional argument)

Enjoy!