From 47e1a7b4af69e1998182126310e42af83cf214ed Mon Sep 17 00:00:00 2001
From: Charles Cabergs <me@cacharle.xyz>
Date: Mon, 5 Oct 2020 17:00:51 +0200
Subject: Norming and destroy on error

---
 philo_two/src/main.c | 76 +++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 52 insertions(+), 24 deletions(-)

(limited to 'philo_two/src/main.c')

diff --git a/philo_two/src/main.c b/philo_two/src/main.c
index f53f892..b86dc51 100644
--- a/philo_two/src/main.c
+++ b/philo_two/src/main.c
@@ -6,7 +6,7 @@
 /*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2020/02/14 22:45:23 by cacharle          #+#    #+#             */
-/*   Updated: 2020/10/05 14:31:09 by cacharle         ###   ########.fr       */
+/*   Updated: 2020/10/05 16:23:19 by cacharle         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -14,7 +14,55 @@
 
 #define PHILO_SEM_NAME "semaphore_philo_two"
 
-int	main(int argc, char **argv)
+static int	st_destroy(
+	sem_t *forks,
+	t_philo *philos,
+	pthread_t *threads,
+	int philo_num)
+{
+	int	i;
+
+	i = -1;
+	while (++i < philo_num)
+		sem_post(forks);
+	sem_close(forks);
+	sem_unlink(PHILO_SEM_NAME);
+	free(philos);
+	free(threads);
+	return (1);
+}
+
+static int	st_setup(
+	t_philo_conf *conf,
+	t_philo **philos,
+	sem_t **forks,
+	pthread_t **threads)
+{
+	int	i;
+
+	sem_unlink(PHILO_SEM_NAME);
+	*forks = sem_open(PHILO_SEM_NAME, O_CREAT | O_EXCL, 0700, conf->philo_num);
+	if (*forks == SEM_FAILED)
+		return (1);
+	*threads = NULL;
+	if ((*philos = routine_create_philos(conf, *forks)) == NULL ||
+		(*threads = malloc(sizeof(pthread_t) * conf->philo_num)) == NULL ||
+		pthread_mutex_init(&conf->mutex_stdout, NULL) != 0)
+		return (st_destroy(*forks, *philos, *threads, conf->philo_num));
+	conf->all_alive = true;
+	i = -1;
+	while (++i < conf->philo_num)
+		if (pthread_create(*threads + i, NULL,
+				(t_routine)routine_philo, *philos + i) != 0)
+		{
+			while (--i >= 0)
+				pthread_detach((*threads)[i]);
+			return (st_destroy(*forks, *philos, *threads, conf->philo_num));
+		}
+	return (0);
+}
+
+int			main(int argc, char **argv)
 {
 	int				i;
 	t_philo_conf	conf;
@@ -26,33 +74,13 @@ int	main(int argc, char **argv)
 		return (1);
 	if (conf.philo_num == 0)
 		return (0);
-	sem_unlink(PHILO_SEM_NAME);
-	forks = sem_open(PHILO_SEM_NAME, O_CREAT | O_EXCL, 0700, conf.philo_num);
-	if (forks == SEM_FAILED)
+	if (st_setup(&conf, &philos, &forks, &threads) != 0)
 		return (1);
-	if ((philos = routine_create_philos(&conf, forks)) == NULL)
-		return (1);
-	if ((threads = malloc(sizeof(pthread_t) * conf.philo_num)) == NULL)
-		return (1);
-	conf.all_alive = true;
-	pthread_mutex_init(&conf.mutex_stdout, NULL);
-	i = -1;
-	while (++i < conf.philo_num)
-		if (pthread_create(threads + i, NULL,
-				(t_routine)routine_philo, philos + i) < 0)
-			return (1);
 	while (conf.all_alive)
 		;
 	i = -1;
 	while (++i < conf.philo_num)
 		pthread_detach(threads[i]);
-	i = -1;
-	while (++i < conf.philo_num)
-		sem_post(forks);
-	sem_close(forks);
-	sem_unlink(PHILO_SEM_NAME);
-	pthread_mutex_destroy(&conf.mutex_stdout);
-	free(threads);
-	free(philos);
+	st_destroy(forks, philos, threads, conf.philo_num);
 	return (0);
 }
-- 
cgit