/*********************************************************************************
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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: eclipse.c
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* Description: This file is a time eclipse example
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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 05:19:22 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()
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{
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struct timespec start, end;
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long eclipse;
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// 获取开始时间（高精度）
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clock_gettime(CLOCK_MONOTONIC, &start);
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// 模拟耗时操作
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sleep(1);
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// 获取结束时间
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clock_gettime(CLOCK_MONOTONIC, &end);
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// 计算耗时（纳秒）
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eclipse = (end.tv_sec - start.tv_sec) * 1e9 + (end.tv_nsec - start.tv_nsec);
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printf("耗时: %.3f 毫秒\n", eclipse / 1e6);
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return 0;
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}
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