76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
#include "pch.h"
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#include "CTic.h"
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// 高精度定时器的频率，单位Hz，调用Init()确定
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// 目前测到频率在2.5M - 10M
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int64_t CTic::Freq = 0;
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// 高精度定时器的频率，单位kHz，调用Init()确定
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int64_t CTic::Freq_1k = 0;
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int64_t CTic::Freq_10k = 0;
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int64_t CTic::Freq_100k = 0;
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int64_t CTic::Freq_M10 =0; //0.1Hz
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int64_t CTic::Freq_M100 =0; //0.01Hz
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// 记录启动软件时的时间戳
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int64_t CTic::AppStartTick = 0;
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bool CTic::Init()
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{
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if (Freq == 0) { // 确保只调用一次，避免多次调用后AppStartTick发生变化
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QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER*>(&Freq));
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QueryCnt(AppStartTick);
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}
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Freq_1k = Freq / 1000;
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Freq_10k = Freq / 10000;
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Freq_100k = Freq / 100000;
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Freq_M10 = Freq * 10;
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Freq_M100 = Freq * 100;
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bool ok = (Freq_100k * 100000 == Freq);
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_ASSERT_EXPR(ok, "Freq_100k * 100000 == Freq"); // 必须满足频率是100k的倍数
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return ok;
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}
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int64_t CAvgDiffTick::add(int64_t newvalue)
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{
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if (!Buf) return 0;
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if (Cnt == 0) {
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index = 0;
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_Avg = 0;
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}
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else if (Cnt < N) {
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_Avg = int((newvalue - Buf[0]) / Cnt);
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}
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else {
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if (index >= N) index = 0;
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_Avg = int(((newvalue - Buf[index]) + N / 2) / N);
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}
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Buf[index] = newvalue;
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index++;
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Cnt++;
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return _Avg;
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}
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// 测试代码
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void CAvgDiffTick::Test1(int avgnum)
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{
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CAvgDiffTick Avg(avgnum);
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int64_t x = 0;
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for (int i = 0; i < 100; i++)
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{
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x += 1000 + rand() % 10 - 5;
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std::cout << Avg.add(x) << std::endl;
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}
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}
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void CAvgDiffTick::Test2(int avgnum)
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{
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CAvgDiffTick Avg(avgnum);
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int64_t x = 0;
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for (int i = 0; i < 100; i++)
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{
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std::cout << Avg.add(Avg.appRun_100us()) << std::endl;
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Sleep(100);
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}
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} |