51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* simple_philosophers.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: ruiferna <ruiferna@student.42porto.com> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/10/09 18:23:48 by ruiferna #+# #+# */
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/* Updated: 2025/10/09 18:24:44 by ruiferna ### ########.fr */
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/* */
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/* ************************************************************************** */
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#ifndef SIMPLE_PHILOSOPHERS_H
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# define SIMPLE_PHILOSOPHERS_H
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#include <stdio.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <time.h>
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long long get_current_time()
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{
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struct timeval tv;
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gettimeofday(&tv,NULL);
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/*
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A stuct tv tem tv_sec que sao os segundos desde a epoch e temos a tv_usec
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que retorna os microsegundos ate completar 1 segundo (um milhão de microssegundos = 1 segundo).
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Por isso, para conseguirmos realmente medir os milisegundos precisamos de juntar os dois
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*/
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return ((tv.tv_sec * 1000LL) + (tv.tv_usec / 1000LL));
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}
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long long time_diff(long long start, long long end)
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{
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return (end - start);
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}
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void precise_sleep(int ms)
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{
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long long start_time;
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start_time = get_current_time();
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while ((get_current_time() - start_time) < ms)
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{
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usleep(100);
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}
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}
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#endif |