Makefile

@@ -1,8 +1,5 @@
 SRCS = parsing.c \
 	   utils/ft_isnum.c \
-	   utils/putchar.c \
-	   utils/putnum.c \
-	   utils/putstr.c \
 	   utils/ft_atoi.c \
 	   main.c \
 	   time.c \

data.c

@@ -6,14 +6,13 @@
 #include "./data.h"
 #include "philo.h"
 #include "philos.h"
+#include "struct.h"
 #include <string.h>
 
 bool	data_init(t_data *data)
 {
-	size_t	i;
-
 	data->stop = 0;
-	data->forks = malloc(sizeof(pthread_mutex_t) * data->nb_philos);
+	data->forks = malloc(sizeof(bool) * data->nb_philos);
 	if (data->forks == NULL)
 		return (1);
 	memset(data->forks, 1, data->nb_philos);
@@ -30,12 +29,7 @@ bool	data_init(t_data *data)
 		free(data->forks);
 		return (1);
 	}
-	i = 0;
-	while (i < data->nb_philos)
-	{
-		pthread_mutex_init(&data->forks[i], NULL);
-		i++;
-	}
+	pthread_mutex_init(&data->forks_mutex, NULL);
 	pthread_mutex_init(&data->stop_mutex, NULL);
 	pthread_mutex_init(&data->print_mutex, NULL);
 	return (0);
@@ -58,12 +52,7 @@ void	data_destroyer(t_data *data)
 			i++;
 		usleep(1000);
 	}
-	i = 0;
-	while (i < data->nb_philos)
-	{
-		pthread_mutex_destroy(&data->forks[i]);
-		i++;
-	}
+	pthread_mutex_destroy(&data->forks_mutex);
 	pthread_mutex_destroy(&data->stop_mutex);
 	pthread_mutex_destroy(&data->print_mutex);
 	free(data->threads);

data.h

@@ -1,23 +1,5 @@
-#ifndef DATA_H
-# define DATA_H
-# include <pthread.h>
-# include <sys/types.h>
-
-typedef struct s_data
-{
-	size_t			eat_time;
-	size_t			sleep_time;
-	size_t			life_expectency;
-	size_t			nb_philos;
-	ssize_t			nb_meals;
-	void			**philos;
-	pthread_t		*threads;
-	pthread_mutex_t	*forks;
-	pthread_mutex_t	stop_mutex;
-	bool			stop;
-	pthread_mutex_t	print_mutex;
-}	t_data;
+# include "./struct.h"
 
 bool	data_init(t_data *data);
 void	data_destroyer(t_data *data);
-#endif
+

main.c

@@ -10,7 +10,7 @@
 #include "./threads.h"
 #include "./time.h"
 #include "./print.h"
-#include "./utils/utils.h"
+#include "./struct.h"
 
 size_t	get_min_meal(t_data *data)
 {
@@ -61,14 +61,25 @@ void	*check_routine(t_data *data)
 			pthread_mutex_unlock(&philo->last_eat_mutex);
 			if (ok == 1)
 			{
-				stop(data);
 				print_died(philo);
+				stop(data);
+				return (NULL);
+			}
+			pthread_mutex_lock(&philo->last_sleep_mutex);
+			// printf("time=%zu, last_sleep=%zu, life_expectency=%zu\n", get_time(), philo->last_sleep, data->life_expectency);
+			ok = !(philo->last_sleep + data->life_expectency > get_time());
+			pthread_mutex_unlock(&philo->last_sleep_mutex);
+			if (ok == 1)
+			{
+				print_died(philo);
+				stop(data);
 				return (NULL);
 			}
 			i++;
-			if ((ssize_t) get_min_meal(data) == data->nb_meals)
+			if ((ssize_t) get_min_meal(data) >= data->nb_meals)
 			{
 				stop(data);
+				printf("g pu faim\n");
 				return (NULL);
 			}
 		}

philo.c

@@ -1,16 +1,18 @@
+#include "philo.h"
+#include "struct.h"
+#include "time.h"
+#include "data.h"
 #include <pthread.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <unistd.h>
 #include "./print.h"
-#include "philo.h"
-#include "time.h"
-#include "data.h"
 
 void	philo_destroyer(t_philo *philo)
 {
 	pthread_mutex_destroy(&philo->nb_meal_mutex);
+	pthread_mutex_destroy(&philo->last_sleep_mutex);
 	pthread_mutex_destroy(&philo->last_eat_mutex);
 	free(philo);
 }
@@ -31,35 +33,55 @@ bool	check(t_philo *philo, t_data *data)
 	return (stop);
 }
 
-bool	philo_eat(t_philo *philo, t_data *data)
+void	eat(t_philo *philo, t_data *data)
 {
-	size_t	time;
-
-	pthread_mutex_lock(&data->forks[philo->id]);
 	print_take_a_fork(philo);
-	if (check(philo, data))
-	{
-		pthread_mutex_unlock(&data->forks[philo->id]);
-		return (1);
-	}
-	pthread_mutex_lock(&data->forks[(philo->id + 1) % data->nb_philos]);
 	print_take_a_fork(philo);
-	if (check(philo, data))
-	{
-		pthread_mutex_unlock(&data->forks[(philo->id + 1) % data->nb_philos]);
-		pthread_mutex_unlock(&data->forks[philo->id]);
-		return (1);
-	}
 	print_eating(philo);
-	time = get_time();
-	if (time - philo->last_eat + data->eat_time > data->life_expectency)
-		usleep((time - philo->last_eat + data->eat_time) * 1000);
+	pthread_mutex_lock(&philo->last_eat_mutex);
+	if (get_time() - philo->last_eat + data->eat_time > data->life_expectency)
+	{
+		pthread_mutex_unlock(&philo->last_eat_mutex);
+		usleep((data->life_expectency -
+					(get_time() - philo->last_eat)) * 1000);
+		return ;
+	}
 	else
 		usleep(data->eat_time * 1000);
-	pthread_mutex_unlock(&data->forks[philo->id]);
-	pthread_mutex_unlock(&data->forks[(philo->id + 1) % data->nb_philos]);
+	pthread_mutex_unlock(&philo->last_eat_mutex);
+	pthread_mutex_lock(&philo->nb_meal_mutex);
+	philo->nb_meal++;
+	pthread_mutex_unlock(&philo->nb_meal_mutex);
+	pthread_mutex_lock(&data->forks_mutex);
+	data->forks[philo->id] = 1;
+	data->forks[(philo->id + 1) % data->nb_philos] = 1;
+	pthread_mutex_unlock(&data->forks_mutex);
+}
+
+bool	philo_eat(t_philo *philo, t_data *data)
+{
+	bool	left_fork;
+	bool	right_fork;
+
+	left_fork = 0;
+	right_fork = 0;
+	while (left_fork == 0 || right_fork == 0)
+	{
 		if (check(philo, data))
 			return (1);
+		pthread_mutex_lock(&data->forks_mutex);
+		left_fork = data->forks[philo->id]; 
+		if (((philo->id + 1) % data->nb_philos) != philo->id)
+			right_fork = data->forks[(philo->id + 1) % data->nb_philos];
+		if (right_fork && left_fork)
+		{
+			data->forks[philo->id] = 0;
+			data->forks[(philo->id + 1) % data->nb_philos] = 0;
+		}
+		pthread_mutex_unlock(&data->forks_mutex);
+		usleep(10);
+	}
+	eat(philo, data);
 	pthread_mutex_lock(&philo->last_eat_mutex);
 	philo->last_eat = get_time();
 	pthread_mutex_unlock(&philo->last_eat_mutex);
@@ -68,14 +90,23 @@ bool	philo_eat(t_philo *philo, t_data *data)
 
 void	philo_sleep(t_data *data, t_philo *philo)
 {
-	size_t	time;
-
 	print_sleeping(philo);
-	time = get_time();
-	if (time - philo->last_eat + data->eat_time > data->life_expectency)
-		usleep((time - philo->last_eat + data->eat_time) * 1000);
+	pthread_mutex_lock(&philo->last_sleep_mutex);
+	// printf("time=%zu, last_sleep=%zu, sleep_time=%zu, life_expectency=%zu\n", get_time(), philo->last_sleep, data->sleep_time, data->life_expectency);
+	if (get_time() - philo->last_sleep + data->sleep_time > data->life_expectency)
+	{
+		pthread_mutex_unlock(&philo->last_sleep_mutex);
+		// printf("rompiche=%zu\n", (data->life_expectency -
+		// 			(get_time() - philo->last_sleep)));
+		usleep((data->life_expectency -
+					(get_time() - philo->last_sleep)) * 1000);
+		return ;
+	}
 	else
-		usleep(data->eat_time * 1000);
+		usleep(data->sleep_time * 1000);
+	philo->last_sleep = get_time();
+	pthread_mutex_unlock(&philo->last_sleep_mutex);
+
 }
 
 
@@ -87,26 +118,18 @@ void	*philo_routine(void *arg)
 	philo = arg;
 	data = philo->data;
 	print_thinking(philo);
-	usleep((philo->id * (data->life_expectency / data->nb_philos)) * 1000);
+	usleep(philo->id * (data->life_expectency / data->nb_philos));
 	while (true)
 	{
 		if (check(philo, data))
-		{
 			return (NULL);
-		}
 		if (philo_eat(philo, data))
-		{
 			return (NULL);
-		}
 		if (check(philo, data))
-		{
 			return (NULL);
-		}
 		philo_sleep(data, philo);
 		if (check(philo, data))
-		{
 			return (NULL);
-		}
 		print_thinking(philo);
 	}
 	return (NULL);
@@ -125,8 +148,10 @@ t_philo	*philo_init(t_data *data)
 	philo->nb_meal = 0;
 	philo->stop = 0;
 	philo->last_eat = get_time();
+	philo->last_sleep = get_time();
 	pthread_mutex_init(&philo->nb_meal_mutex, NULL);
 	pthread_mutex_init(&philo->last_eat_mutex, NULL);
+	pthread_mutex_init(&philo->last_sleep_mutex, NULL);
 	pthread_mutex_init(&philo->stop_mutex, NULL);
 	return (philo);
 }

philo.h

@@ -6,31 +6,17 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/03/08 14:38:14 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/04/25 14:05:15 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/04/13 12:58:09 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
-#ifndef PHILO_H
-# define PHILO_H
 #include <pthread.h>
 # include <stdio.h>
 # include <stdbool.h>
 # include <stdlib.h>
 # include "./data.h"
 
-typedef struct s_philo
-{
-	size_t	id;
-	pthread_mutex_t	nb_meal_mutex;
-	size_t			nb_meal;
-	pthread_mutex_t	last_eat_mutex;
-	size_t			last_eat;
-	pthread_mutex_t	stop_mutex;
-	bool			stop;
-	t_data			*data;
-}	t_philo;
-
 t_philo		*philo_init(t_data *data);
 void		philo_destroyer(t_philo *philo);
 void		*philo_routine(void *arg);
-#endif
+

philos.c

@@ -1,4 +1,5 @@
 #include "./philo.h"
+#include "struct.h"
 #include <stdbool.h>
 #include <stddef.h>
 

print.c

@@ -1,30 +1,24 @@
 #include "philo.h"
 #include <bits/pthreadtypes.h>
 #include <pthread.h>
-#include <stdbool.h>
 #include <stddef.h>
 #include "./time.h"
-#include "./utils/utils.h"
+#include "struct.h"
 
 static void	print(t_data *data, size_t id, char *str)
 {
 	size_t					time;
-	bool					stop;
 
+	pthread_mutex_lock(&data->stop_mutex);
+	if (data->stop)
+	{
+		pthread_mutex_unlock(&data->stop_mutex);
+		return ;
+	}
+	pthread_mutex_unlock(&data->stop_mutex);
 	time = get_time();
 	pthread_mutex_lock(&data->print_mutex);
-	pthread_mutex_lock(&data->stop_mutex);
-	stop = data->stop;
-	pthread_mutex_unlock(&data->stop_mutex);
-	if (stop == false)
-	{
-		ft_putnum(time, 7);
-		ft_putchar(' ');
-		ft_putnum(id + 1, 3);
-		ft_putchar(' ');
-		ft_putstr(str);
-		ft_putchar('\n');
-	}
+	printf("%07zu %03zu %s\n", time, id + 1, str);
 	pthread_mutex_unlock(&data->print_mutex);
 }
 
@@ -50,17 +44,5 @@ void	print_thinking(t_philo *philo)
 
 void	print_died(t_philo *philo)
 {
-	t_data	*data;
-	size_t	time;
-
-	data = philo->data;
-	time = get_time();
-	pthread_mutex_lock(&data->print_mutex);
-	ft_putnum(time, 7);
-	ft_putchar(' ');
-	ft_putnum(philo->id + 1, 3);
-	ft_putchar(' ');
-	ft_putstr("died");
-	ft_putchar('\n');
-	pthread_mutex_unlock(&data->print_mutex);
+	print(philo->data, philo->id, "died");
 }

struct.h

@@ -0,0 +1,41 @@
+#ifndef STRUCT_H
+# define STRUCT_H
+# include <pthread.h>
+# include <stddef.h>
+# include <sys/types.h>
+
+typedef struct s_data
+{
+	size_t			eat_time;
+	size_t			sleep_time;
+	size_t			life_expectency;
+	size_t			nb_philos;
+	ssize_t			nb_meals;
+	void			**philos;
+	pthread_t		*threads;
+	pthread_mutex_t	forks_mutex;
+	bool			*forks;
+	pthread_mutex_t	stop_mutex;
+	bool			stop;
+	pthread_mutex_t	print_mutex;
+}	t_data;
+
+typedef struct s_philo
+{
+	size_t	id;
+	pthread_mutex_t	nb_meal_mutex;
+	size_t			nb_meal;
+	pthread_mutex_t	last_eat_mutex;
+	size_t			last_eat;
+	pthread_mutex_t	last_sleep_mutex;
+	size_t			last_sleep;
+	pthread_mutex_t	stop_mutex;
+	bool			stop;
+	t_data			*data;
+}	t_philo;
+
+t_philo		*philo_create(t_data *data);
+t_philo		*philo_destoyer(t_philo *philo);
+void		*philo_routine(void *arg);
+
+#endif

threads.c

@@ -1,4 +1,5 @@
 #include "philo.h"
+#include "struct.h"
 #include <pthread.h>
 #include <stdbool.h>
 #include <unistd.h>

threads.h

@@ -1,4 +1,5 @@
 # include "./data.h"
+#include "struct.h"
 # include <stdbool.h>
 
 bool	threads_init(t_data *data);

utils/putchar.c

@@ -1,6 +0,0 @@
-#include <unistd.h>
-
-void	ft_putchar(char c)
-{
-	write(1, &c, 1);
-}

utils/putnum.c

@@ -1,47 +0,0 @@
-#include <stddef.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include "utils.h"
-
-static size_t	get_size(size_t num)
-{
-	size_t	nb_digit;
-	size_t	rest;
-
-	nb_digit = 0;
-	if (num == 0)
-		nb_digit++;
-	rest = num;
-	while (rest != 0)
-	{
-		nb_digit++;
-		rest = rest / 10;
-	}
-	return (nb_digit);
-}
-
-static void	ft_putdigit(size_t num)
-{
-	if (num > 9)
-	{
-		ft_putdigit(num / 10);
-		ft_putchar(num % 10 + 48);
-	}
-	else
-		ft_putchar(num + 48);
-}
-
-void	ft_putnum(size_t num, size_t padding)
-{
-	size_t	size;
-	size_t	i;
-
-	i = 0;
-	size = get_size(num);
-	while (i < padding - size)
-	{
-		ft_putchar('0');
-		i++;
-	}
-	ft_putdigit(num);
-}

utils/putstr.c

@@ -1,14 +0,0 @@
-#include "utils.h"
-#include <stddef.h>
-
-void	ft_putstr(char *str)
-{
-	size_t	i;
-
-	i = 0;
-	while (str[i] != 0)
-	{
-		ft_putchar(str[i]);
-		i++;
-	}
-}

utils/utils.h

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/04/11 14:38:07 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/04/25 14:09:53 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/04/11 14:46:12 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -17,8 +17,5 @@
 
 bool	ft_isnum(char str[]);
 int		ft_atoi(const char str[]);
-void	ft_putchar(char c);
-void	ft_putstr(char str[]);
-void	ft_putnum(size_t num, size_t padding);
 
 #endif