258 lines
6.4 KiB
C
258 lines
6.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* main.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/02/20 19:10:43 by apommier #+# #+# */
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/* Updated: 2022/02/20 19:10:43 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "philosophers.h"
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t_arg *create_data(int argc, char **argv)
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{
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t_arg *data;
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usleep(1500000);
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data = malloc(sizeof(t_arg));
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*data->death = 1;
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data->nb_full_philo = 0;
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data->nb_philo = ft_atoi(argv[1]);
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data->time_to_die = ft_atoi(argv[2]);
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data->time_to_eat = ft_atoi(argv[3]);
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data->time_to_sleep = ft_atoi(argv[4]);
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data->must_eat = 0;
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if (argc == 6)
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data->must_eat = ft_atoi(argv[5]);
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else
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data->must_eat = -1;
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return (data);
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}
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void exit_philo(t_philo *philo, t_arg *data)
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{
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int i;
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i = 0;
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printf("exit philo\n");
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while (i < data->nb_philo - 1)
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{
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pthread_mutex_destroy(philo[i].left_fork);
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free(philo[i].left_fork);
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i++;
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}
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pthread_mutex_destroy(philo[i].left_fork);
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free(philo[i].left_fork);
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pthread_mutex_destroy(philo[i].display);
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free(philo[i].display);
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free(philo);
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free(data);
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exit(1);
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}
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void put_event(t_philo philo, char *event)
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{
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pthread_mutex_lock(philo.display);
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if (*philo.data->death)
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printf("%ldms Philo N°%d %s\n", get_time() - philo.data->time_start, philo.philo_id, event);
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pthread_mutex_unlock(philo.display);
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}
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void philo_take_fork(t_philo philo)
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{
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//printf("philo %d FORKED\n", philo.philo_id);
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if (*philo.data->death)
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pthread_mutex_lock(philo.left_fork);
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if (*philo.data->death)
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put_event(philo, "has taken a fork");
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if (*philo.data->death)
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pthread_mutex_lock(philo.right_fork);
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if (*philo.data->death)
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put_event(philo, "has taken a fork");
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//printf("philo %d done FORKED\n", philo.philo_id);
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}
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void philo_eat(t_philo *philo_tmp)
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{
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t_philo philo;
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philo = *philo_tmp;
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if (*philo.data->death)
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philo_take_fork(philo);
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*philo_tmp->last_eat = get_time();
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if (*philo.data->death)
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put_event(philo, "is eating");
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usleep(philo.data->time_to_eat * 1000);
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pthread_mutex_unlock(philo.left_fork);
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pthread_mutex_unlock(philo.right_fork);
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if (*philo.data->death)
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put_event(philo, "is sleeping");
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usleep(philo.data->time_to_sleep * 1000);
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if (*philo.data->death)
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put_event(philo, "is thinking");
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}
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int death_checker(t_philo *philo, t_arg *data)
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{
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int i;
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i = 0;
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while (*data->death)
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{
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i = -1;
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while (i++ < data->nb_philo - 1 && *data->death && *philo[i].last_eat)
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{
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if ((get_time() - *philo[i].last_eat) > data->time_to_die && philo[i].must_eat)
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{
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*philo[i].data->death = 0;
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usleep(10000);
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pthread_mutex_lock(philo->display);
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printf("%ldms Philo N°%d is died\n",
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get_time() - data->time_start, philo[i].philo_id);
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printf("End: one philo died\n");
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pthread_mutex_unlock(philo->display);
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printf("time_to_die: %d TIME: %ld start: %ld philo.start: %ld last_eat: %ld condition: %ld\n", data->time_to_die ,get_time(), data->time_start , philo[i].data->time_start, get_time() - *philo[i].last_eat ,get_time() - *philo[i].last_eat);
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return (1);
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}
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else if (data->nb_full_philo == data->nb_philo)
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{
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pthread_mutex_lock(philo->display);
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printf("End: all philo are full\n");
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return (1);
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}
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}
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}
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return (0);
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}
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void *routine(void *tmp)
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{
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t_philo *philo;
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philo = (t_philo *)tmp;
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*philo->last_eat = get_time();
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if (philo->philo_id % 2)
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usleep(15000);
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while (*philo->data->death && philo->must_eat
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&& philo->data->nb_full_philo != philo->data->nb_philo)
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{
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printf("philo %d start_eat\n", philo->philo_id);
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philo_eat(philo);
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printf("Philo %d end_eat\n", philo->philo_id);
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philo->must_eat--;
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if (!philo->must_eat)
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philo->data->nb_full_philo++;
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}
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printf("philo %d rutine end\n", philo->philo_id);
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//printf("n%d before end routine\n", philo->philo_id);
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return (0);
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}
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t_philo *create_philo(t_arg *data)
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{
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int i;
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t_philo *philo;
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pthread_mutex_t *display;
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i = 0;
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philo = malloc(sizeof(t_philo) * data->nb_philo);
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if (!philo)
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return (0);
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display = malloc(sizeof(pthread_mutex_t));
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if (!display)
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return (0);
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pthread_mutex_init(display, 0);
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while (i < data->nb_philo)
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{
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*philo[i].last_eat = 0;
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philo[i].display = display;
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philo[i].philo_id = i + 1;
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philo[i].data = data;
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philo[i].must_eat = data->must_eat;
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philo[i].left_fork = malloc(sizeof(pthread_mutex_t));
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pthread_mutex_init(philo[i].left_fork, 0);
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i++;
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}
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i = 0;
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while (i < data->nb_philo)
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{
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philo[i].right_fork = philo[(i + 1) % data->nb_philo].left_fork;
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i++;
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}
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return (philo);
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}
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int start_philo(t_philo *philo, t_arg *data)
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{
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int i;
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i = 0;
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data->time_start = get_time();
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while (i < data->nb_philo)
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{
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pthread_create(&philo[i].thread, 0, &routine, &philo[i]);
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usleep(10);
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i++;
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}
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death_checker(philo, data);
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printf("after d_checker\n");
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i = 0;
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while (i < data->nb_philo)
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{
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printf("i = %d philo %d\n", i, philo[i].philo_id);
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pthread_join(philo[i++].thread, 0);
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}
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printf("after join\n");
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exit_philo(philo, data);
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return (0);
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}
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int check_arg(int argc, char **argv)
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{
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int i;
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int j;
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j= 0;
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i = 1;
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if (argc != 5 && argc != 6)
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return (1);
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while (argv[i])
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{
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j = 0;
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while (argv[i][j])
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{
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if (argv[i][j] > '9' || argv[i][j] < '0')
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return (1);
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j++;
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}
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i++;
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}
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return (0);
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}
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int main(int argc, char **argv)
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{
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t_arg *data;
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t_philo *philo;
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if (check_arg(argc, argv))
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{
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printf("Bad arguments\n");
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return (0);
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}
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data = create_data(argc, argv);
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philo = create_philo(data);
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start_philo(philo, data);
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return (0);
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}
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//put_event(*philo, "starting");
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//if ( philo->philo_id == 3)
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// *philo->data->test = 0;
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//printf("je suis le numero %d\n", philo->philo_id);
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//printf("test = %d\n", *philo->data->test);
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