69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
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#include "StarTime.hpp"
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#include "StarLexicalCast.hpp"
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#include "StarMathCommon.hpp"
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#include <ctime>
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#include <windows.h>
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namespace Star {
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String Time::printDateAndTime(int64_t epochTicks, String format) {
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// playing fast and loose with the standard here...
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time_t requestedTime = epochTicks / epochTickFrequency();
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struct tm* ptm;
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ptm = localtime(&requestedTime);
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return format.replaceTags(StringMap<String>{
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{"year", strf("%04d", ptm->tm_year + 1900)},
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{"month", strf("%02d", ptm->tm_mon + 1)},
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{"day", strf("%02d", ptm->tm_mday)},
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{"hours", strf("%02d", ptm->tm_hour)},
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{"minutes", strf("%02d", ptm->tm_min)},
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{"seconds", strf("%02d", ptm->tm_sec)},
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{"millis", strf("%03d", (epochTicks % epochTickFrequency()) / (epochTickFrequency() / 1000))},
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});
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}
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int64_t Time::epochTicks() {
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FILETIME ft_now;
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GetSystemTimeAsFileTime(&ft_now);
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LONGLONG now = (LONGLONG)ft_now.dwLowDateTime + ((LONGLONG)(ft_now.dwHighDateTime) << 32LL);
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now -= 116444736000000000LL;
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return now;
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}
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int64_t Time::epochTickFrequency() {
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return 10000000LL;
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}
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struct MonotonicClock {
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MonotonicClock() {
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QueryPerformanceFrequency(&freq);
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};
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int64_t ticks() const {
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LARGE_INTEGER ticks;
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QueryPerformanceCounter(&ticks);
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return ticks.QuadPart;
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}
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int64_t frequency() const {
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return freq.QuadPart;
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}
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LARGE_INTEGER freq;
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};
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static MonotonicClock g_monotonicClock;
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int64_t Time::monotonicTicks() {
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return g_monotonicClock.ticks();
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}
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int64_t Time::monotonicTickFrequency() {
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return g_monotonicClock.frequency();
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}
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}
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