/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   philo_utils.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/05/16 14:04:06 by narnaud           #+#    #+#             */
/*   Updated: 2022/05/16 14:04:11 by narnaud          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "philosophers.h"

static int	mini_atoi(char	*nbr)
{
	int	ret;

	ret = 0;
	while (*nbr >= '0' && *nbr <= '9')
	{
		ret = (*nbr - '0') + (10 * ret);
		nbr++;
	}
	return (ret);
}

t_table	*parsing(char **argv)
{
	t_table	*table;

	table = malloc(sizeof(t_table));
	memset(table, 0, sizeof(t_table));
	table->nb_of_philos = mini_atoi(argv[0]);
	table->philos = malloc(sizeof(t_philo) * table->nb_of_philos);
	memset(table->philos, 0, sizeof(t_philo) * table->nb_of_philos);
	table->time_to_die = mini_atoi(argv[1]);
	table->eating_time = mini_atoi(argv[2]);
	table->sleeping_time = mini_atoi(argv[3]);
	table->time = gettime();
	if (argv[4])
		table->nb_of_meal = mini_atoi(argv[4]);
	else
		table->nb_of_meal = 2147483647;
	return (table);
}

size_t	gettime(void)
{
	static struct timeval	time = {0,0};
	struct timeval			actualtime;
	size_t					ret;
	
	if(time.tv_sec == 0 && time.tv_usec == 0)
		gettimeofday(&time, NULL);
	gettimeofday(&actualtime, NULL);
	ret = (size_t)((actualtime.tv_sec * 1000 + actualtime.tv_usec / 1000)\
		- (time.tv_sec * 1000 + time.tv_usec / 1000));
	return (ret);
}