You will have to write one program for the mandatory part and one for the bonus part but they will have the same basic rules:
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This project is to be coded in C, following the Norm. Any leak, crash, undefined behavior, or norm error means 0 to the project.
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Several philosophers are sitting at a round table doing one of three things: eating, thinking, or sleeping.
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While eating, they are not thinking or sleeping, while sleeping, they are not eating or thinking and of course, while thinking, they are not eating or sleeping.
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The philosophers sit at a circular table with a large bowl of spaghetti in the center.
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There are some forks on the table.
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As spaghetti is difficult to serve and eat with a single fork, it is assumed that a philosopher must eat with two forks, one for each hand.
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The philosophers must never be starving.
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Every philosopher needs to eat.
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Philosophers don’t speak with each other.
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Philosophers don’t know when another philosopher is about to die.
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Each time a philosopher has finished eating, he will drop his forks and start sleeping.
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When a philosopher is done sleeping, he will start thinking.
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The simulation stops when a philosopher dies.
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Each program should have the same options: 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 his 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 he 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.
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Each philosopher should be given a number from 1 to ’number_of_philosophers’.
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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
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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)
- timestamp_in_ms X has taken a fork
- timestamp_in_ms X is eating
- timestamp_in_ms X is sleeping
- timestamp_in_ms X is thinking
- timestamp_in_ms X died
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The status printed should not be scrambled or intertwined with another philosopher’s status.
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You can’t have more than 10 ms between the death of a philosopher and when it will print its death.