42/42_INT_08_philosophers
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save from school

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This commit is contained in:
Hugo LAMY
2022-01-20 15:45:49 +01:00
parent ac9d619731
commit 9a59f54641
4 changed files with 34 additions and 27 deletions
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36
srcs/exec.c
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@@ -1,32 +1,32 @@
#include "philo.h"
int take_forks(t_philo *philo)
void print_message(t_philo *philo, char *msg)
{
// pthread_mutex_lock(&mutex);
while (philo->fork == 0 || philo->next->fork == 0)
continue ;
if (philo->fork == 1 && philo->next->fork == 1)
{
philo->fork = 0;
philo->next->fork = 0;
ft_printf("%i has taken a fork\n", philo->philo_nbr);
return (1);
}
// pthread_mutex_unlock(&mutex);
return (0);
pthread_mutex_lock(philo->m_print);
ft_printf("%i %s\n", philo->philo_nbr, msg);
pthread_mutex_unlock(philo->m_print);
}
void take_forks(t_philo *philo)
{
pthread_mutex_lock(&(philo->m_fork));
pthread_mutex_lock(&(philo->next->m_fork));
print_message(philo, "has taken a fork");
usleep(philo->params->t_eat);
pthread_mutex_unlock(&(philo->next->m_fork));
pthread_mutex_unlock(&(philo->m_fork));
}
void *philo_exec(void *arg)
{
t_philo *philo;
int nbr;
philo = (t_philo*)arg;
nbr = philo->philo_nbr;
print_message(philo, "is thinking");
take_forks(philo);
pthread_mutex_lock(philo->m_print);
ft_printf("%i is thinking\n", philo->philo_nbr);
pthread_mutex_unlock(philo->m_print);
// eat
// "has taken a fork"