/*********************************************************************************
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* Copyright: (C) 2025 LingYun IoT System Studio
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* All rights reserved.
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*
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* Filename: sleep.c
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* Description: This file is sleep example code.
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*
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* Version: 1.0.0(10/15/2025)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "10/15/2025 05:16:02 PM"
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*
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********************************************************************************/
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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int main(void)
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{
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struct timespec req;
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printf("Sleep 2 seconds using sleep()\n");
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sleep(2);
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printf("Sleep 0.5 seconds using nanosleep()\n");
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req.tv_sec = 0;
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req.tv_nsec = 500000000; /* 0.5 秒 */
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nanosleep(&req, NULL);
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printf("Sleep 0.1 seconds using clock_nanosleep()\n");
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req.tv_sec = 0;
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req.tv_nsec = 100000000; /* 0.1 秒 */
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clock_nanosleep(CLOCK_MONOTONIC, 0, &req, NULL);
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return 0;
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}
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