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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* philo.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/09 01:54:53 by cacharle #+# #+# */
/* Updated: 2020/02/09 03:26:07 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "common.h"
t_philo *philos_new(int num, t_philo_routine routine)
{
int i;
t_philo *philos;
if (num < 0)
return (NULL);
if ((philos = (t_philo*)h_calloc(num + 1, sizeof(t_philo))) == NULL)
return (NULL);
i = -1;
while (++i < num)
{
philos[i].id = num + 1;
if (pthread_create(&philos[i].thread, NULL, routine, philos + num) != 0)
{
philos_destroy(philos, i);
return (NULL);
}
}
return (philos);
}
void philos_destroy(t_philo *philo, int num)
{
if (philo == NULL)
return ;
while (num-- > 0)
pthread_join(philos[num].thread, NULL);
free(philos);
}
void philo_eat(t_philo *philo)
{
// take forks
// lock mutex
philo_put_state_change(philo, EVENT_EATING);
usleep(philo->timeout_eat * 1000);
// drop forks
// unlock mutex
}
void philo_sleep(t_philo *philo)
{
philo_put_state_change(philo, EVENT_SLEEPING);
usleep(philo->timeout_sleep * 1000);
}
void philo_think(t_philo *philo)
{
philo_put_state_change(philo, EVENT_THINKING);
// search a fork
}
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