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kinou-p 2022-03-17 00:46:19 +01:00
parent b12669eee9
commit 0fccce3acc
8 changed files with 313 additions and 267 deletions
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9
Makefile
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@ -6,13 +6,16 @@
# By: apommier <apommier@student.42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2022/02/13 16:27:49 by apommier #+# #+# #
# Updated: 2022/03/05 18:52:44 by apommier ### ########.fr #
# Updated: 2022/03/15 17:49:12 by apommier ### ########.fr #
# #
# **************************************************************************** #
NAME = philo
SRCS = main.c\
utils.c
SRCS = srcs/main.c\
srcs/init.c\
srcs/exit.c\
srcs/philo.c\
srcs/utils.c
OBJS = ${SRCS:.c=.o}
CC = gcc
CFLAGS = -pthread -Wall -Wextra -Werror

258
main.c
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@ -1,258 +0,0 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/02/20 19:10:43 by apommier #+# #+# */
/* Updated: 2022/02/20 19:10:43 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "philosophers.h"
t_arg *create_data(int argc, char **argv)
{
t_arg *data;
usleep(1500000);
data = malloc(sizeof(t_arg));
*data->death = 1;
data->nb_full_philo = 0;
data->nb_philo = ft_atoi(argv[1]);
data->time_to_die = ft_atoi(argv[2]);
data->time_to_eat = ft_atoi(argv[3]);
data->time_to_sleep = ft_atoi(argv[4]);
data->must_eat = 0;
if (argc == 6)
data->must_eat = ft_atoi(argv[5]);
else
data->must_eat = -1;
return (data);
}
void exit_philo(t_philo *philo, t_arg *data)
{
int i;
i = 0;
printf("exit philo\n");
while (i < data->nb_philo - 1)
{
pthread_mutex_destroy(philo[i].left_fork);
free(philo[i].left_fork);
i++;
}
pthread_mutex_destroy(philo[i].left_fork);
free(philo[i].left_fork);
pthread_mutex_destroy(philo[i].display);
free(philo[i].display);
free(philo);
free(data);
exit(1);
}
void put_event(t_philo philo, char *event)
{
pthread_mutex_lock(philo.display);
if (*philo.data->death)
printf("%ldms Philo N°%d %s\n", get_time() - philo.data->time_start, philo.philo_id, event);
pthread_mutex_unlock(philo.display);
}
void philo_take_fork(t_philo philo)
{
//printf("philo %d FORKED\n", philo.philo_id);
if (*philo.data->death)
pthread_mutex_lock(philo.left_fork);
if (*philo.data->death)
put_event(philo, "has taken a fork");
if (*philo.data->death)
pthread_mutex_lock(philo.right_fork);
if (*philo.data->death)
put_event(philo, "has taken a fork");
//printf("philo %d done FORKED\n", philo.philo_id);
}
void philo_eat(t_philo *philo_tmp)
{
t_philo philo;
philo = *philo_tmp;
if (*philo.data->death)
philo_take_fork(philo);
*philo_tmp->last_eat = get_time();
if (*philo.data->death)
put_event(philo, "is eating");
usleep(philo.data->time_to_eat * 1000);
pthread_mutex_unlock(philo.left_fork);
pthread_mutex_unlock(philo.right_fork);
if (*philo.data->death)
put_event(philo, "is sleeping");
usleep(philo.data->time_to_sleep * 1000);
if (*philo.data->death)
put_event(philo, "is thinking");
}
int death_checker(t_philo *philo, t_arg *data)
{
int i;
i = 0;
while (*data->death)
{
i = -1;
while (i++ < data->nb_philo - 1 && *data->death && *philo[i].last_eat)
{
if ((get_time() - *philo[i].last_eat) > data->time_to_die && philo[i].must_eat)
{
*philo[i].data->death = 0;
usleep(10000);
pthread_mutex_lock(philo->display);
printf("%ldms Philo N°%d is died\n",
get_time() - data->time_start, philo[i].philo_id);
printf("End: one philo died\n");
pthread_mutex_unlock(philo->display);
printf("time_to_die: %d TIME: %ld start: %ld philo.start: %ld last_eat: %ld condition: %ld\n", data->time_to_die ,get_time(), data->time_start , philo[i].data->time_start, get_time() - *philo[i].last_eat ,get_time() - *philo[i].last_eat);
return (1);
}
else if (data->nb_full_philo == data->nb_philo)
{
pthread_mutex_lock(philo->display);
printf("End: all philo are full\n");
return (1);
}
}
}
return (0);
}
void *routine(void *tmp)
{
t_philo *philo;
philo = (t_philo *)tmp;
*philo->last_eat = get_time();
if (philo->philo_id % 2)
usleep(15000);
while (*philo->data->death && philo->must_eat
&& philo->data->nb_full_philo != philo->data->nb_philo)
{
printf("philo %d start_eat\n", philo->philo_id);
philo_eat(philo);
printf("Philo %d end_eat\n", philo->philo_id);
philo->must_eat--;
if (!philo->must_eat)
philo->data->nb_full_philo++;
}
printf("philo %d rutine end\n", philo->philo_id);
//printf("n%d before end routine\n", philo->philo_id);
return (0);
}
t_philo *create_philo(t_arg *data)
{
int i;
t_philo *philo;
pthread_mutex_t *display;
i = 0;
philo = malloc(sizeof(t_philo) * data->nb_philo);
if (!philo)
return (0);
display = malloc(sizeof(pthread_mutex_t));
if (!display)
return (0);
pthread_mutex_init(display, 0);
while (i < data->nb_philo)
{
*philo[i].last_eat = 0;
philo[i].display = display;
philo[i].philo_id = i + 1;
philo[i].data = data;
philo[i].must_eat = data->must_eat;
philo[i].left_fork = malloc(sizeof(pthread_mutex_t));
pthread_mutex_init(philo[i].left_fork, 0);
i++;
}
i = 0;
while (i < data->nb_philo)
{
philo[i].right_fork = philo[(i + 1) % data->nb_philo].left_fork;
i++;
}
return (philo);
}
int start_philo(t_philo *philo, t_arg *data)
{
int i;
i = 0;
data->time_start = get_time();
while (i < data->nb_philo)
{
pthread_create(&philo[i].thread, 0, &routine, &philo[i]);
usleep(10);
i++;
}
death_checker(philo, data);
printf("after d_checker\n");
i = 0;
while (i < data->nb_philo)
{
printf("i = %d philo %d\n", i, philo[i].philo_id);
pthread_join(philo[i++].thread, 0);
}
printf("after join\n");
exit_philo(philo, data);
return (0);
}
int check_arg(int argc, char **argv)
{
int i;
int j;
j= 0;
i = 1;
if (argc != 5 && argc != 6)
return (1);
while (argv[i])
{
j = 0;
while (argv[i][j])
{
if (argv[i][j] > '9' || argv[i][j] < '0')
return (1);
j++;
}
i++;
}
return (0);
}
int main(int argc, char **argv)
{
t_arg *data;
t_philo *philo;
if (check_arg(argc, argv))
{
printf("Bad arguments\n");
return (0);
}
data = create_data(argc, argv);
philo = create_philo(data);
start_philo(philo, data);
return (0);
}
//put_event(*philo, "starting");
//if ( philo->philo_id == 3)
// *philo->data->test = 0;
//printf("je suis le numero %d\n", philo->philo_id);
//printf("test = %d\n", *philo->data->test);

35
srcs/exit.c Normal file
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@ -0,0 +1,35 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* exit.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/03/15 17:40:53 by apommier #+# #+# */
/* Updated: 2022/03/17 00:22:47 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "philosophers.h"
void exit_philo(t_philo *philo, t_arg *data)
{
int i;
i = 0;
printf("exit philo\n");
usleep(100000);
while (i < data->nb_philo - 1)
{
pthread_mutex_destroy(philo[i].left_fork);
free(philo[i].left_fork);
i++;
}
pthread_mutex_destroy(philo[i].left_fork);
free(philo[i].left_fork);
pthread_mutex_destroy(data->display);
free(data->display);
free(philo);
free(data);
exit(1);
}

68
srcs/init.c Normal file
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@ -0,0 +1,68 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* init.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/03/15 17:38:58 by apommier #+# #+# */
/* Updated: 2022/03/16 21:50:42 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "philosophers.h"
t_arg *create_data(int argc, char **argv)
{
t_arg *data;
pthread_mutex_t *display;
display = malloc(sizeof(pthread_mutex_t));
if (!display)
return (0);
pthread_mutex_init(display, 0);
data = malloc(sizeof(t_arg));
pthread_mutex_init(&data->life_check, 0);
data->display = display;
data->death = 1;
data->full_philo = 0;
data->nb_philo = ft_atoi(argv[1]);
data->time_to_die = ft_atoi(argv[2]);
data->time_to_eat = ft_atoi(argv[3]);
data->time_to_sleep = ft_atoi(argv[4]);
data->must_eat = -1;
if (argc == 6)
data->must_eat = ft_atoi(argv[5]);
else
data->must_eat = -1;
return (data);
}
t_philo *create_philo(t_arg *data)
{
int i;
t_philo *philo;
i = 0;
philo = malloc(sizeof(t_philo) * data->nb_philo);
if (!philo)
return (0);
while (i < data->nb_philo)
{
philo[i].last_eat = 0;
philo[i].philo_id = i + 1;
philo[i].data = data;
philo[i].nb_eat = 0;
philo[i].left_fork = malloc(sizeof(pthread_mutex_t));
pthread_mutex_init(philo[i].left_fork, 0);
pthread_mutex_init(&philo[i].eat_check, 0);
i++;
}
i = 0;
while (i < data->nb_philo)
{
philo[i].right_fork = philo[(i + 1) % data->nb_philo].left_fork;
i++;
}
return (philo);
}

29
srcs/main.c Normal file
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@ -0,0 +1,29 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/03/15 17:46:55 by apommier #+# #+# */
/* Updated: 2022/03/16 21:57:11 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "philosophers.h"
int main(int argc, char **argv)
{
t_arg *data;
t_philo *philo;
if (check_arg(argc, argv))
{
printf("Bad arguments\n");
return (0);
}
data = create_data(argc, argv);
philo = create_philo(data);
start_philo(philo, data);
return (0);
}

123
srcs/philo.c Normal file
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@ -0,0 +1,123 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/02/20 19:10:43 by apommier #+# #+# */
/* Updated: 2022/02/20 19:10:43 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "philosophers.h"
void philo_eat(t_philo *philo)
{
t_arg *data;
data = philo->data;
pthread_mutex_lock(philo->left_fork);
put_event(data, philo->philo_id, "has taken a fork");
pthread_mutex_lock(philo->right_fork);
put_event(data, philo->philo_id, "has taken a fork");
pthread_mutex_lock(&philo->eat_check);
put_event(data, philo->philo_id, "is eating");
philo->last_eat = get_time();
pthread_mutex_unlock(&philo->eat_check);
usleep(data->time_to_eat * 1000);
philo->nb_eat++;
pthread_mutex_unlock(philo->left_fork);
pthread_mutex_unlock(philo->right_fork);
}
void death_checker(t_philo *philo, t_arg *data)
{
int i;
int death;
death = 1;
while (!data->full_philo && death)
{
i = -1;
while (++i < data->nb_philo - 1 && death)
{
pthread_mutex_lock(&philo[i].eat_check);
if ((get_time() - philo[i].last_eat) > data->time_to_die)
{
put_event(data, philo[i].philo_id, "is died");
pthread_mutex_lock(&data->life_check);
data->death = 0;
pthread_mutex_unlock(&data->life_check);
death = 0;
printf("End: one philo died\n");
printf("time_to_die: %d TIME: %ld start: %ld philo.start: %ld last_eat: %ld condition: %ld\n", data->time_to_die ,get_time(), data->time_start , philo[i].data->time_start, get_time() - philo[i].last_eat ,get_time() - philo[i].last_eat);
}
pthread_mutex_unlock(&philo[i].eat_check);
usleep(100);
if (!death)
break ;
i = 0;
while (data->must_eat != -1 && i < data->nb_philo
&& philo[i].nb_eat >= data->must_eat)
i++;
if (i == data->nb_philo)
{
pthread_mutex_lock(&data->life_check);
data->death = 0;
data->full_philo = 1;
pthread_mutex_unlock(&data->life_check);
printf("End: all philo are full\n");
}
}
}
}
void *routine(void *tmp)
{
t_philo *philo;
t_arg *data;
philo = (t_philo *)tmp;
data = philo->data;
if (philo->philo_id % 2)
usleep(15000);
pthread_mutex_lock(&data->life_check);
while (philo->data->death)
{
pthread_mutex_unlock(&data->life_check);
philo_eat(philo);
put_event(data, philo->philo_id, "is sleeping");
usleep(philo->data->time_to_sleep * 1000);
put_event(data, philo->philo_id, "is thinking");
pthread_mutex_lock(&data->life_check);
}
pthread_mutex_unlock(&data->life_check);
return (0);
}
int start_philo(t_philo *philo, t_arg *data)
{
int i;
i = 0;
data->time_start = get_time();
while (i < data->nb_philo)
{
philo[i].last_eat = get_time();
if (pthread_create(&philo[i].thread, 0, &routine, &philo[i]))
return (1);
i++;
}
death_checker(philo, data);
//printf(" after d_checker\n");
i = 0;
while (i < data->nb_philo)
{
//printf("i = %d philo %d\n", i, philo[i].philo_id);
pthread_join(philo[i++].thread, 0);
}
// printf("after join\n");
exit_philo(philo, data);
return (0);
}

24
philosophers.h → srcs/philosophers.h
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@ -22,13 +22,15 @@
typedef struct s_list
{
int nb_philo;
int nb_full_philo;
int full_philo;
int time_to_die;
int time_to_eat;
int time_to_sleep;
int must_eat;
long time_start;
int death[1];
int death;
pthread_mutex_t life_check;
pthread_mutex_t *display;
} t_arg;
typedef struct t_list
@ -36,16 +38,26 @@ typedef struct t_list
int philo_id;
pthread_t thread;
t_arg *data;
int must_eat;
long last_eat[1];
int nb_eat;
long last_eat;
pthread_mutex_t eat_check;
pthread_mutex_t *right_fork;
pthread_mutex_t *left_fork;
pthread_mutex_t *display;
} t_philo;
//utils fonctions
long ft_atoi(const char *nptr);
long get_time(void);
void put_event(t_arg *data, int philo_id, char *event);
t_philo *create_philo(t_arg *data);
t_arg *create_data(int argc, char **argv);
void exit_philo(t_philo *philo, t_arg *data);
//philo.c
int check_arg(int argc, char **argv);
int start_philo(t_philo *philo, t_arg *data);
void *routine(void *tmp);
void death_checker(t_philo *philoo, t_arg *data);
void philo_eat(t_philo *philo_tmp);
#endif

34
utils.c → srcs/utils.c
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@ -45,3 +45,37 @@ long get_time(void)
gettimeofday(&time, NULL);
return (time.tv_sec * 1000 + time.tv_usec / 1000);
}
void put_event(t_arg *data, int philo_id, char *event)
{
pthread_mutex_lock(&data->life_check);
pthread_mutex_lock(data->display);
if (data->death)
printf("%ldms Philo N°%d %s\n", get_time() - data->time_start,
philo_id, event);
pthread_mutex_unlock(data->display);
pthread_mutex_unlock(&data->life_check);
}
int check_arg(int argc, char **argv)
{
int i;
int j;
j = 0;
i = 1;
if (argc != 5 && argc != 6)
return (1);
while (argv[i])
{
j = 0;
while (argv[i][j])
{
if (argv[i][j] > '9' || argv[i][j] < '0')
return (1);
j++;
}
i++;
}
return (0);
}