103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
#include "philo.h"
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t_philo *lst_add_philo(t_params *params, t_global *global, int i)
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{
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t_philo *new;
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new = malloc(sizeof(t_philo) * 1);
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if (new == NULL)
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return (NULL);
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new->params = params;
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new->global = global;
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new->p_nbr = i + 1;
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if (pthread_mutex_init(&(new->m_fork), NULL) != 0)
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return (NULL);
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new->t_last_meal_s = 0;
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new->t_last_meal_u = 0;
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new->next = NULL;
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return (new);
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}
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// looping chained list
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t_philo *init_chain_philo(t_params *params, t_global *global)
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{
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t_philo *philo;
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t_philo *tmp;
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t_philo *start;
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int i;
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i = 0;
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philo = NULL;
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while (i < params->n_phi)
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{
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tmp = lst_add_philo(params, global, i);
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if (philo)
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philo->next = tmp;
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else
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start = tmp;
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philo = tmp;
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i++;
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}
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philo->next = start;
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return (philo);
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}
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t_params *init_params(int ac, char **av)
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{
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t_params *params;
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if (ac == 5 || ac == 6)
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{
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params = malloc(sizeof(t_params));
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if (!params)
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return (NULL);
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params->n_phi = ft_atoi(av[1]);
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params->t_die = ft_atoi(av[2]);
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params->t_eat = ft_atoi(av[3]);
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params->t_slp = ft_atoi(av[4]);
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if (ac == 6)
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params->n_eat = ft_atoi(av[5]);
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}
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else
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return (NULL);
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return (params);
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}
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t_global *init_global(void)
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{
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t_global *global;
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global = malloc(sizeof(t_global));
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if (!global)
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return (NULL);
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global->dead = 0;
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global->t_start_s = 0;
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global->t_start_u = 0;
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if (pthread_mutex_init(&(global->m_print), NULL) != 0)
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return (NULL);
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if (pthread_mutex_init(&(global->m_dead), NULL) != 0)
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return (NULL);
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return (global);
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}
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t_philo *init(int ac, char **av, pthread_t **id)
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{
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t_philo *philo;
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t_params *params;
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t_global *global;
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params = init_params(ac, av);
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if (params == NULL)
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return (NULL);
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global = init_global();
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if (params == NULL)
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return (NULL);
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*id = malloc(sizeof(pthread_t) * params->n_phi);
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if (*id == NULL)
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return (NULL);
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philo = init_chain_philo(params, global);
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if (philo == NULL)
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return (NULL);
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return (philo);
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}
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