42_Philosopher/main.c

#include <pthread.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include "./philos.h"
#include "./data.h"
#include "./parsing.h"
#include "./threads.h"
#include "./time.h"
#include "./print.h"
#include "./struct.h"

size_t	get_min_meal(t_data *data)
{
	size_t	i;
	size_t	min;
	size_t	value;
	t_philo	*philo;

	philo = data->philos[0];
	pthread_mutex_lock(&philo->nb_meal_mutex);
	min = philo->nb_meal;
	pthread_mutex_unlock(&philo->nb_meal_mutex);
	i = 1;
	while (i < data->nb_philos)
	{
		philo = data->philos[i];
		pthread_mutex_lock(&philo->nb_meal_mutex);
		value = philo->nb_meal;
		pthread_mutex_unlock(&philo->nb_meal_mutex);
		if (min > value)
			min = value;
		i++;
	}
	return (min);
}

void	stop(t_data *data)
{
	pthread_mutex_lock(&data->stop_mutex);
	data->stop = 1;
	pthread_mutex_unlock(&data->stop_mutex);
}

void	check_routine(t_data *data)
{
	size_t	i;
	bool	ok;
	t_philo	*philo;

	while (true)
	{
		if ((ssize_t) get_min_meal(data) == data->nb_meals)
		{
			printf("g pu faim\n");
			stop(data);
			return ;
		}
		i = 0;
		while (i < data->nb_philos)
		{
			philo = data->philos[i];
			pthread_mutex_lock(&philo->last_eat_mutex);
			ok = !(philo->last_eat + data->life_expectency > get_time());
			pthread_mutex_unlock(&philo->last_eat_mutex);
			if (ok == 1)
			{
				print_died(philo);
				return ;
			}
			i++;
		}
	}
}

int	main(int ac, char **av)
{
	t_data	data;

	if (parsing(&data, av + 1, ac - 1))
		return (1);
	if (data_init(&data))
		return (1);
	if (philos_init(&data))
	{
		data_destroyer(&data);
		return (1);
	}
	if (threads_init(&data))
	{
		data_destroyer(&data);
		return (1);
	}
	check_routine(&data);
	data_destroyer(&data);
}