97 lines
2.0 KiB
C++
97 lines
2.0 KiB
C++
#include "StarTime.hpp"
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#include "StarMathCommon.hpp"
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#include <sys/time.h>
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#ifdef STAR_SYSTEM_MACOS
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#include <mach/mach_time.h>
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#else
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#include <time.h>
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#endif
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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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localtime_r(&requestedTime, &ptm);
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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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timeval tv;
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gettimeofday(&tv, NULL);
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return (int64_t)tv.tv_sec * 1'000'000 + tv.tv_usec;
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}
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int64_t Time::epochTickFrequency() {
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return 1'000'000;
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}
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#ifdef STAR_SYSTEM_MACOS
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struct MonotonicClock {
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MonotonicClock() {
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mach_timebase_info(&timebaseInfo);
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};
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int64_t ticks() const {
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int64_t t = mach_absolute_time();
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return (t / 100) * timebaseInfo.numer / timebaseInfo.denom;
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}
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int64_t frequency() const {
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// hard coded to 100ns increments
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return 10'000'000;
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}
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mach_timebase_info_data_t timebaseInfo;
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};
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#else
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struct MonotonicClock {
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MonotonicClock() {
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timespec ts;
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clock_getres(CLOCK_MONOTONIC, &ts);
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starAssert(ts.tv_sec == 0);
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storedFrequency = 1'000'000'000 / ts.tv_nsec;
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};
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int64_t ticks() const {
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timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return ts.tv_sec * storedFrequency + ts.tv_nsec * storedFrequency / 1'000'000'000;
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}
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int64_t frequency() const {
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return storedFrequency;
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}
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int64_t storedFrequency;
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};
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#endif
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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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