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85 lines
2.6 KiB
85 lines
2.6 KiB
3 years ago
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* philo_threads.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: narnaud <narnaud@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2021/11/26 07:43:48 by narnaud #+# #+# */
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/* Updated: 2022/04/11 14:52:22 by narnaud ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "philosophers.h"
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void *philos_life(void *r)
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{
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t_room *room;
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t_param *param;
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t_philo *philo;
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int id;
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int id_p;
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room = (t_room *)r;
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param = room->param;
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pthread_mutex_lock(room->safe);
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id = room->i;
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philo = room->philos[id];
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philo->eat_time = room->time;
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id_p = (id + 1) % param->philo_amount;
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pthread_mutex_unlock(room->safe);
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while (room->running)
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{
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pthread_mutex_lock(philo->fork);
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safe_print("%ld %d has taken a fork\n", room, id);
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pthread_mutex_lock(room->philos[id_p]->fork);
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safe_print("%ld %d has taken a fork\n", room, id);
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safe_print("%ld %d is eating\n", room, id);
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pthread_mutex_lock(philo->safe);
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philo->eat_time = room->time;
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pthread_mutex_unlock(philo->safe);
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if (check_end(room))
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{
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pthread_mutex_unlock(philo->fork);
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pthread_mutex_unlock(room->philos[id_p]->fork);
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return (NULL);
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}
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usleep(param->eat_duration * 1000);
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pthread_mutex_unlock(philo->fork);
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pthread_mutex_unlock(room->philos[id_p]->fork);
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if (check_end(room))
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return (NULL);
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safe_print("%ld %d is sleeping\n", room, id);
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pthread_mutex_lock(philo->safe);
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philo->eat_amount++;
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pthread_mutex_unlock(philo->safe);
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usleep(param->sleep_duration * 1000);
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if (check_end(room))
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return (NULL);
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safe_print("%ld %d is thinking\n", room, id);
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}
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return (NULL);
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}
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void *room_clock(void *r)
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{
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t_room *room;
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struct timeval time;
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room = (t_room *)r;
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while (1)
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{
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gettimeofday(&time, NULL);
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pthread_mutex_lock(room->safe);
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room->time = time.tv_sec * 1000 + time.tv_usec / 1000 - room->start_time;
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if (!room->running)
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{
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pthread_mutex_unlock(room->safe);
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return(NULL);
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}
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pthread_mutex_unlock(room->safe);
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usleep(CLOCK_TWO);
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}
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return (NULL);
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}
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