This is a project done in the context of the 42 Lisboa school. It focuses mainly on threads and mutexes.
The 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: is the number of philosophers and also the number of forks.
- time_to_die: is in milliseconds, if a philosopher doesn’t start eating ’time_to_die’ milliseconds after starting their last meal or the beginning of the simulation, it dies.
- time_to_eat: is in milliseconds and is the time it takes for a philosopher to eat. During that time they will need to keep the two forks.
- time_to_sleep: is in milliseconds and is the time the philosopher will spend sleeping.
- number_of_times_each_philosopher_must_eat: argument is optional, if all philosophers eat at least ’number_of_times_each_philosopher_must_eat’ the simulation will stop. If not specified, the simulation will stop only at the death of a philosopher.
- Each philosopher should be given a number from 1 to ’number_of_philosophers’.
- Philosopher number 1 is next to philosopher number ’number_of_philosophers’.
Any other philosopher with the number N is seated between philosopher N - 1 and philosopher N + 1.
Any change of status of a philosopher must be written as follows (with X replaced with the philosopher number and timestamp_in_ms the current timestamp in milliseconds):
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- timestamp_in_ms X has taken a fork
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- timestamp_in_ms X is eating
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- timestamp_in_ms X is sleeping
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- timestamp_in_ms X is thinking
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- timestamp_in_ms X died The status printed should not be scrambled or intertwined with another philosopher’s status. We can’t have more than 10 ms between the death of a philosopher and when it will print its death.
Obviously, philosophers should avoid dying!