私はC++でタイミング関連のコードに取り組んでいます。
FILETIME ftTime;
GetSystemTimeAsFileTime(&ftTime);
struct DateTime
{
unsigned int dwLowDateTime;
unsigned int dwHighDateTime;
};
DateTime myTime;
myTime.dwHighDateTime = (unsigned int)ftTime.dwHighDateTime;
myTime.dwLowDateTime = (unsigned int)ftTime.dwLowDateTime;
ussigned __int64 AsUInt64_t
unsigned __int64 myInt64Time = *(unsigned __int64*)&myTime;
// I have Getstring format from date time some thing like this below
Format() {
SYSTEMTIME systemTime;
FileTimeToSystemTime(&fileTime, &systemTime);
const char* formatString = "%04d-%02d-%02d %02d:%02d:%02d.%03d";
// I have few variable declartions to be used for snprintf which is not mentioned here.
apiResult = _snprintf_s(pBuffer, sizeOfBuffer, count, formatString, systemTime.wYear, systemTime.wMonth, systemTime.wDay, systemTime.wHour, systemTime.wMinute, systemTime.wSecond, systemTime.wMilliseconds);
}
DateTime startTime = now(); // some how I am getting latest time here.
sleep(5s); // sleeping for 5 seconds.
DateTime endTime = now(); // i.e., after 5 seconds.
std::cout << "\nOn Start Time:" << startTime.Format() << std::endl;
std::cout << "On End Tme: " << endTime.Format() << std::endl;
std::cout << "On Start Read " << *(unsigned __int64*)&startTime << std::endl;
std::cout << "On End Read " << *(unsigned __int64*)&endtime<< std::endl;
///////////////////
上記の出力は以下のようになります。
On Start Time:2012-06-18 09:45:03.180
On End Time :2012-06-18 09:45:08.183
// Int Int64 I am getting as below
On Start Read : 129844863031802858
On End Read : 129844863081832935
私の質問は、たとえば2秒の各間隔など、指定された間隔に従って境界を等間隔に分割したいということです。どうすればいいですか?
上限(範囲/間隔)間隔。
たとえば、開始:12:00:00:0000、終了は12:01:52:00099です。間隔は16秒で、7つの間隔があります。
unsigned __int64 interval =16;
上記のロジックを使用すると(*(unsigned __int64*)&endtime - *(unsigned __int64*)&startTime) / interval)
、7が得られませんか?どうすれば修正できますか?