This is a project to learn how to deal with parallelism, multithreads, sharing data, executing a unique code in synchronicity without interference between each other.
The context is like the Dining Philosopher Problem:
- 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.
- There are also as many forks as philosophers on the table.
- 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!
Usage:
After make, the program needs the following parameters:
- number of philosophers
- time to die: 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: The time it takes for a philosopher to eat. During that time, they will need to hold two forks.
- time to sleep
- number of times each philosophers must eat (optional argument): If all philosophers have eaten at least this number times, the simulation stops. If not specified, the simulation stops when a philosopher dies.
./philo [number_of_philosophers] [time_to_die] [time_to_eat] [time_to_sleep] <number_of_times_each_philosopher_must_eat>
Some useful links to learn about threads: