WIP: philo one

1 files changed, 59 insertions, 0 deletions

diff --git a/philo_one/fork.c b/philo_one/fork.c
new file mode 100644
index 0000000..d42510b
--- /dev/null
+++ b/philo_one/fork.c
@@ -0,0 +1,59 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   fork.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/02/09 23:46:40 by cacharle          #+#    #+#             */
+/*   Updated: 2020/02/10 00:34:17 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "philo_one.h"
+
+t_fork	*forks_new(int num)
+{
+	int		i;
+	t_fork	*forks;
+
+	if ((forks = (t_fork*)malloc(sizeof(t_fork) * num)) == NULL)
+		return (NULL);
+	i = -1;
+	while (++i < num)
+	{
+		if (pthread_mutex_init(&forks[num].mutex, NULL) != 0)
+		{
+			forks_destroy(forks, i + 1);
+			return (NULL);
+		}
+	}
+	return (forks);
+}
+
+void	forks_destroy(t_fork *forks, int num)
+{
+	while (num-- > 0)
+	{
+		forks[num].used = TRUE;
+		pthread_mutex_destroy(&forks[num].mutex);
+	}
+}
+
+t_routine_arg	*forks_dispatch(t_philo *philos, t_fork *forks, t_philo_args *args)
+{
+	int				i;
+	t_routine_arg	*routine_args;
+
+	if ((routine_args = (t_routine_arg*)malloc(sizeof(t_routine_arg) * args->philo_num)) == NULL)
+		return (NULL);
+	i = -1;
+	while (++i < args->philo_num)
+	{
+		routine_args[i].args = args;
+		routine_args[i].philo = philos + i;
+		routine_args[i].fork_left = forks + i % args->philo_num;
+		routine_args[i].fork_left = forks + (i - 1) % args->philo_num;
+	}
+	return (routine_args);
+}