82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* init.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: lfirmin <lfirmin@student.42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2024/11/22 14:20:46 by lfirmin #+# #+# */
|
|
/* Updated: 2025/03/17 04:12:57 by lfirmin ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
#include "../include/philo.h"
|
|
|
|
int init_forks(t_data *data)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
while (i < data->nb_philo)
|
|
{
|
|
if (pthread_mutex_init(&data->forks[i], NULL))
|
|
return (1);
|
|
i++;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int init_philos(t_data *data)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
while (i < data->nb_philo)
|
|
{
|
|
data->philos[i].id = i + 1;
|
|
data->philos[i].l_fork = i;
|
|
data->philos[i].r_fork = (i + 1) % data->nb_philo;
|
|
data->philos[i].last_meal = data->start_time;
|
|
data->philos[i].m_eaten = 0;
|
|
data->philos[i].data = data;
|
|
if (pthread_mutex_init(&data->philos[i].meal_lock, NULL))
|
|
return (1);
|
|
i++;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int init_all(t_data *data)
|
|
{
|
|
int i;
|
|
|
|
i = -1;
|
|
if (init_philo_forks(data))
|
|
return (printf("Error : Failed to allocate memory\n"), 1);
|
|
if (init_forks(data))
|
|
{
|
|
free(data->philos);
|
|
free(data->forks);
|
|
return (printf("Error : Failed to initialize forks mutex\n"), 1);
|
|
}
|
|
if (init_philos(data))
|
|
{
|
|
while (++i < data->nb_philo)
|
|
pthread_mutex_destroy(&data->forks[i]);
|
|
free(data->philos);
|
|
free(data->forks);
|
|
return (printf("Error : Failed to initialize philosophers\n"), 1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int init_philo_forks(t_data *data)
|
|
{
|
|
data->philos = malloc(sizeof(t_philo) * data->nb_philo);
|
|
if (!data->philos)
|
|
return (1);
|
|
data->forks = malloc(sizeof(pthread_mutex_t) * data->nb_philo);
|
|
if (!data->forks)
|
|
return (free(data->philos), 1);
|
|
return (0);
|
|
}
|