58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#include "philo.h"
|
|
|
|
// TODO : compare time with time before dying
|
|
void go_sleep(t_philo *philo, int time)
|
|
{
|
|
(void)philo;
|
|
usleep(time * 1000);
|
|
}
|
|
|
|
int ret_unlock(t_mtx mutex, int ret)
|
|
{
|
|
pthread_mutex_unlock(&mutex);
|
|
return (ret);
|
|
}
|
|
|
|
int take_forks(t_philo *philo)
|
|
{
|
|
pthread_mutex_lock(&(philo->m_fork));
|
|
if (philo->death)
|
|
return (ret_unlock(philo->m_fork, 1));
|
|
print_message(philo, "has taken a fork");
|
|
pthread_mutex_lock(&(philo->next->m_fork));
|
|
if (philo->death)
|
|
return (ret_unlock(philo->next->m_fork, 1));
|
|
print_message(philo, "has taken a fork");
|
|
|
|
print_message(philo, "is eating");
|
|
go_sleep(philo, philo->params->t_eat);
|
|
|
|
pthread_mutex_unlock(&(philo->next->m_fork));
|
|
pthread_mutex_unlock(&(philo->m_fork));
|
|
return (0);
|
|
}
|
|
|
|
// int n_phi; // number_of_philosophers
|
|
// int t_die; // time_to_die
|
|
// int t_eat; // time_to_eat
|
|
// int t_slp; // time_to_sleep
|
|
// int n_eat; // [number_of_times_each_philosopher_must_eat]
|
|
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 (take_forks(philo) != 0)
|
|
break ;
|
|
print_message(philo, "is sleeping");
|
|
go_sleep(philo, philo->params->t_slp);
|
|
print_message(philo, "is thinking");
|
|
}
|
|
return (NULL);
|
|
}
|