sleep() usleep() for linux, Sleep() for windows

[2022/04/06] Add title image

[2022/03/20] Add usleep()

[2022/03/12] Start

 

소나무 기운 ,  전자제품 개발/생산

sleep() usleep() for linux, Sleep() for windows

 

 

 

Sleep() for windows

#include <stdio.h>
#include <windows.h>

Sleep(1000);    // 1000 ms

 

 

sleep() for linux

#include <stdio.h>
#include <time.h>
#include <unistd.h>

int main()
{
    char buf[250];

    printf("start\n");
    time_t begin;
    time(&begin);

    sleep(1);

    time_t end;
    time(&end);

    printf("end %0f Sec\n", difftime(end, begin));
}

 

usleep() for linux

#include <stdio.h>
#include <time.h>
#include <unistd.h>

int main()
{
    char buf[250];
    struct timespec start={0,0}, end={0,0};
    
    clock_gettime(CLOCK_MONOTONIC, &start);

    usleep(700000); // 700mS
    
    clock_gettime(CLOCK_MONOTONIC, &end);

    printf("%.2f seconds\n",((double)end.tv_sec + 1.0e-9*end.tv_nsec) - ((double)start.tv_sec + 1.0e-9*start.tv_nsec));
}

 

 

 

 

마무리

 

 

 

참고문헌

 

 

 

 

 

 

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