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76 lines
1.9 KiB
76 lines
1.9 KiB
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* philo_utils.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: narnaud@student.42nice.fr <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2022/05/18 19:10:41 by narnaud@stude #+# #+# */
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/* Updated: 2022/05/19 00:50:56 by narnaud@stude ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "philo.h"
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int is_running(t_room *room)
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{
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int ret;
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pthread_mutex_lock(room->lock);
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ret = room->running;
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pthread_mutex_unlock(room->lock);
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return (ret);
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}
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int safe_print(t_philo *philo, char *str)
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{
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int ret;
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ret = is_running(philo->room);
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if (!ret)
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return (0);
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pthread_mutex_lock(philo->room->lock);
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printf(str, room_clock(), philo->id);
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pthread_mutex_unlock(philo->room->lock);
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return (ret);
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}
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int safe_wait(t_room *room, int start, int duration)
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{
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int ret;
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ret = is_running(room);
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while (ret && (room_clock()
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< (start + room->param[duration])))
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{
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ret = is_running(room);
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usleep(50);
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}
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return (ret);
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}
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int room_clock(void)
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{
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struct timeval time;
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int ret;
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static long int start_time = 0;
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gettimeofday(&time, NULL);
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if (!start_time)
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start_time = time.tv_sec * 1000 + time.tv_usec / 1000;
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ret = (int)(time.tv_sec * 1000 + time.tv_usec / 1000 - start_time);
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return (ret);
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}
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int mini_atoi(char *nbr)
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{
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int ret;
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ret = 0;
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while (*nbr >= '0' && *nbr <= '9')
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{
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ret = (*nbr - '0') + (10 * ret);
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nbr++;
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}
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return (ret);
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}
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