| 1 | // checkTime.cpp : Defines the entry point for the console application.
|
|---|
| 2 | //
|
|---|
| 3 |
|---|
| 4 | #include "stdafx.h"
|
|---|
| 5 | #include "windows.h"
|
|---|
| 6 | #include "time.h"
|
|---|
| 7 |
|---|
| 8 | #include <stdlib.h>
|
|---|
| 9 | #include <stdio.h>
|
|---|
| 10 | #include <conio.h>
|
|---|
| 11 | #include <process.h>
|
|---|
| 12 |
|---|
| 13 | #include <string.h>
|
|---|
| 14 |
|---|
| 15 |
|---|
| 16 | // DWORD WINAPI GetTickCount(void);
|
|---|
| 17 |
|---|
| 18 | static char * GetTimeString()
|
|---|
| 19 | {
|
|---|
| 20 | SYSTEMTIME st;
|
|---|
| 21 | GetLocalTime(&st);
|
|---|
| 22 | static char to[100];
|
|---|
| 23 | sprintf (to,"%d-%02d-%02d %02d:%02d:%02d.%03d", (int)st.wYear, (int)st.wMonth,(int)st.wDay,(int)st.wHour,
|
|---|
| 24 | (int)st.wMinute,(int)st.wSecond,(int) st.wMilliseconds);
|
|---|
| 25 | return to;
|
|---|
| 26 | }
|
|---|
| 27 |
|---|
| 28 |
|---|
| 29 | int _tmain(int argc, _TCHAR* argv[])
|
|---|
| 30 | {
|
|---|
| 31 | DWORD lastTime=GetTickCount();
|
|---|
| 32 | DWORD actTime;
|
|---|
| 33 | DWORD diff;
|
|---|
| 34 | LONGLONG g_Frequency, g_CurrentCount, g_LastCount;
|
|---|
| 35 |
|---|
| 36 | //Frequenz holen
|
|---|
| 37 | if (!QueryPerformanceFrequency((LARGE_INTEGER*)&g_Frequency))
|
|---|
| 38 | printf("PerformanceCounter nicht vorhanden\n");
|
|---|
| 39 |
|---|
| 40 | printf("Frequency: %llx\n", g_Frequency);
|
|---|
| 41 |
|---|
| 42 | QueryPerformanceCounter((LARGE_INTEGER*)&g_LastCount);
|
|---|
| 43 |
|---|
| 44 | long overflow=0xFFFFFFFF / g_Frequency;
|
|---|
| 45 |
|---|
| 46 | printf("%s\n",GetTimeString());
|
|---|
| 47 | printf ("Overflow from lower part are %ld seconds\n",overflow);
|
|---|
| 48 | printf ("ActTime=%lx\n",lastTime);
|
|---|
| 49 | printf ("ActPerfTime=%llx\n",g_LastCount);
|
|---|
| 50 | for (;;)
|
|---|
| 51 | {
|
|---|
| 52 | Sleep(1000);
|
|---|
| 53 | actTime=GetTickCount();
|
|---|
| 54 | diff = actTime-lastTime;
|
|---|
| 55 |
|---|
| 56 | if (diff > 2000) {
|
|---|
| 57 | printf("%s: Error %ld\n", GetTimeString(), diff);
|
|---|
| 58 | printf ("ActTime=%lx\n",actTime);
|
|---|
| 59 | }
|
|---|
| 60 | lastTime=actTime;
|
|---|
| 61 | QueryPerformanceCounter((LARGE_INTEGER*)&g_CurrentCount);
|
|---|
| 62 |
|---|
| 63 | double dTimeDiff = (((double)(g_CurrentCount-g_LastCount))/((double)g_Frequency));
|
|---|
| 64 | if (dTimeDiff > 2 || dTimeDiff < 0) {
|
|---|
| 65 | printf("%s: PerfError %f\n", GetTimeString(), dTimeDiff);
|
|---|
| 66 | printf ("ActPerfTime=%llx\n",g_CurrentCount);
|
|---|
| 67 | }
|
|---|
| 68 | g_LastCount=g_CurrentCount;
|
|---|
| 69 |
|---|
| 70 |
|---|
| 71 | }
|
|---|
| 72 | return 0;
|
|---|
| 73 | }
|
|---|