42/42_INT_08_philosophers
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protection segfault creation zero philosophs + deplacement fichiers dans philo + ajout exeption philo folder dans gitignore

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This commit is contained in:
Hugo LAMY
2022-01-27 15:08:56 +01:00
parent e45ca1331f
commit 836c02f3f5
12 changed files with 4 additions and 2 deletions
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73
philo/srcs/exec.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* exec.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: hulamy <hulamy@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/01/26 15:30:28 by hulamy #+# #+# */
/* Updated: 2022/01/26 18:51:44 by hulamy ### ########.fr */
/* */
/* ************************************************************************** */
#include "philo.h"
static void action_delay(t_philo *philo, int action_time)
{
struct timeval stime;
int death_time;
gettimeofday(&stime, NULL);
death_time = philo->params->t_die - diff_time(&philo->t_last_meal, &stime);
if (death_time > action_time)
usleep(action_time * 1000);
else if (death_time > 0)
usleep(philo->params->t_die * 1000);
}
static int ret_err_unlock(t_philo *philo, int nbr_fork)
{
pthread_mutex_unlock(&philo->m_fork);
if (nbr_fork == 2)
pthread_mutex_unlock(&philo->next->m_fork);
return (1);
}
static int eat(t_philo *philo)
{
pthread_mutex_lock(&(philo->m_fork));
if (print_message(philo, WHITE, "has taken a fork"))
return (ret_err_unlock(philo, 1));
pthread_mutex_lock(&(philo->next->m_fork));
if (print_message(philo, WHITE, "has taken a fork"))
return (ret_err_unlock(philo, 2));
update_time(philo);
if (print_message(philo, B_YELLOW, "is eating"))
return (ret_err_unlock(philo, 2));
action_delay(philo, philo->params->t_eat);
philo->eat_count++;
pthread_mutex_unlock(&(philo->next->m_fork));
pthread_mutex_unlock(&(philo->m_fork));
return (0);
}
void *philo_exec(void *arg)
{
t_philo *philo;
philo = (t_philo *)arg;
init_time(philo);
if (philo->p_nbr % 2 == 0)
usleep(10 * 1000);
while (1)
{
if (eat(philo) != 0)
break ;
if (print_message(philo, B_BLUE, "is sleeping"))
break ;
action_delay(philo, philo->params->t_slp);
if (print_message(philo, B_GREEN, "is thinking"))
break ;
}
return (NULL);
}