105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lfirmin <lfirmin@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/11/21 17:11:19 by lfirmin #+# #+# */
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/* Updated: 2025/03/17 04:00:00 by lfirmin ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../include/philo.h"
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t_data *init_data(void)
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{
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t_data *data;
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data = malloc(sizeof(t_data));
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if (!data)
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return (NULL);
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data->nb_philo = 0;
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data->t_die = 0;
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data->t_eat = 0;
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data->t_sleep = 0;
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data->must_eat = -1;
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data->dead_flag = 0;
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data->forks = NULL;
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data->philos = NULL;
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data->start_time = 0;
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if (pthread_mutex_init(&data->print, NULL))
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return (free(data), NULL);
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if (pthread_mutex_init(&data->dead_mutex, NULL))
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return (free(data), NULL);
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return (data);
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}
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void free_data(t_data *data)
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{
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int i;
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if (data)
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{
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if (data->forks)
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{
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i = -1;
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while (++i < data->nb_philo)
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{
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pthread_mutex_destroy(&data->forks[i]);
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pthread_mutex_destroy(&data->philos[i].meal_lock);
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}
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free(data->forks);
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}
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if (data->philos)
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free(data->philos);
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pthread_mutex_destroy(&data->print);
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pthread_mutex_destroy(&data->dead_mutex);
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free(data);
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}
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}
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long long ft_atoll(const char *str)
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{
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long long result;
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int sign;
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result = 0;
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sign = 1;
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while (*str == ' ' || (*str >= 9 && *str <= 13))
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str++;
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if (*str == '-' || *str == '+')
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{
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if (*str == '-')
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sign = -1;
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str++;
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}
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while (*str >= '0' && *str <= '9')
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{
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if (result > INT_MAX || result < INT_MIN)
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return (2147483648);
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result = result * 10 + (*str - '0');
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str++;
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}
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return (result * sign);
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}
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int check_if_dead(t_philo *philo)
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{
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int result;
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pthread_mutex_lock(&philo->data->dead_mutex);
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result = philo->data->dead_flag;
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pthread_mutex_unlock(&philo->data->dead_mutex);
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return (result);
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}
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int check_if_dead_data(t_data *data)
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{
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int result;
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pthread_mutex_lock(&data->dead_mutex);
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result = data->dead_flag;
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pthread_mutex_unlock(&data->dead_mutex);
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return (result);
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}
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