naji-k / philosophers

Philosophers

This project is a version of the Dining Philosophers Problem.

The goal of this project was to learn to avoid deadlock and race conditions when creating multithreaded applications.

Rules

The program takes the following arguments:

./philo <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.

Output

The output of the program is in the format <timestamp> <philosopher (1 to number_of_philosophers)> <action>

Each philosopher logs the following actions:

• Taking a fork
• Eating
• Sleeping
• Thinking
• Dying

Score :