✅ Passed with 100/100
My version of philosophers School 42 project @ Hive Helsinki
This project is a take on the Dining Philosophers Problem using multithreading. The idea is to get comfortable working with threads and mutexes and explore the challenges of synchronisation.
- 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!
By Benjamin D. Esham / Wikimedia Commons, CC BY-SA 3.0, Link
Your program should take the following arguments: number_of_philosophers time_to_die time_to_eat time_to_sleep [number_of_times_each_philosopher_must_eat]
- number_of_philosophers: The number of philosophers and also the number of forks.
- time_to_die (in milliseconds): If a philosopher didn’t start eating time_to_die milliseconds since the beginning of their last meal or the beginning of the simulation, they die.
- time_to_eat (in milliseconds): The time it takes for a philosopher to eat. During that time, they will need to hold two forks.
- time_to_sleep (in milliseconds): The time a philosopher will spend sleeping.
- number_of_times_each_philosopher_must_eat (optional argument): If all philosophers have eaten at least number_of_times_each_philosopher_must_eat times, the simulation stops. If not specified, the simulation stops when a philosopher dies.
cdinto the directory.maketo compile../philo number_of_philosophers time_to_die time_to_eat time_to_sleep [number_of_times_each_philosopher_must_eat]to run.