112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* routine.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/06/11 11:42:31 by rparodi #+# #+# */
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/* Updated: 2024/06/20 15:04:13 by rparodi ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../includes/philo.h"
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t_bool dead_loop(t_philo *philo)
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{
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pthread_mutex_lock(philo->dead_lock);
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if (*philo->dead_check == true)
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return (pthread_mutex_unlock(philo->dead_lock), true);
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pthread_mutex_unlock(philo->dead_lock);
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return (false);
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}
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t_bool check_dead(t_philo *philo)
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{
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t_usize i;
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i = 0;
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while (i < philo[0].nb_philo)
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{
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if (ft_time() - philo[i].t_last_eat > philo[i].t_eat)
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return (true);
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}
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i++;
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return (false);
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}
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t_bool check_eat(t_philo *philo)
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{
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t_usize i;
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t_u8 check;
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i = 0;
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check = 0;
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if (philo[0].nb_eat == -1)
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return (false);
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while (i < philo[0].nb_philo)
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{
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if (philo[i].eating_count >= philo[i].nb_eat)
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check++;
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i++;
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}
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if (check == philo[0].nb_philo)
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return (true);
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return (false);
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}
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void *ft_watch_dogs(void *ptr)
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{
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t_philo *philo;
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philo = (t_philo *) ptr;
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if (philo == NULL)
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return (NULL);
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while (true)
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{
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if (check_dead(philo))
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break ;
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if (check_eat(philo))
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break ;
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}
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return (philo);
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}
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void *ft_routine(void *ptr)
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{
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t_philo *philo;
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philo = (t_philo *) ptr;
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if (philo == NULL)
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return (NULL);
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while (!dead_loop(philo))
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{
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ft_start_eating(philo);
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ft_sleeping(philo);
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ft_thinking(philo);
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}
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return (philo);
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}
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t_error ft_init_thread(t_program *prog, t_mutex *forks)
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{
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t_thread o_block;
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t_usize i;
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i = 0;
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if (pthread_create(&o_block, NULL, &ft_watch_dogs, prog->philos))
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ft_destroy_exit("Allocation of watch_dogs failed\n", \
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ERROR, prog, forks);
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while (i < prog->philos[0].nb_philo)
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{
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if (pthread_create(&prog->philos[i].thread, NULL, &ft_routine, \
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&prog->philos[i]))
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ft_destroy_exit("Allocation of one philo thread failed !\n", \
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ERROR, prog, forks);
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i++;
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}
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pthread_join(o_block, NULL);
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while (--i > 0)
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pthread_join(prog->philos[i].thread, NULL);
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return (NO_ERROR);
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}
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