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#include "StarTime.hpp"
#include "StarMathCommon.hpp"
#include <sys/time.h>
#ifdef STAR_SYSTEM_MACOS
#include <mach/mach_time.h>
#else
#include <time.h>
#endif
namespace Star {
String Time::printDateAndTime(int64_t epochTicks, String format) {
// playing fast and loose with the standard here...
time_t requestedTime = epochTicks / epochTickFrequency();
struct tm ptm;
localtime_r(&requestedTime, &ptm);
return format.replaceTags(StringMap<String>{
{"year", strf("{:04d}", ptm.tm_year + 1900)},
{"month", strf("{:02d}", ptm.tm_mon + 1)},
{"day", strf("{:02d}", ptm.tm_mday)},
{"hours", strf("{:02d}", ptm.tm_hour)},
{"minutes", strf("{:02d}", ptm.tm_min)},
{"seconds", strf("{:02d}", ptm.tm_sec)},
{"millis", strf("{:03d}", (epochTicks % epochTickFrequency()) / (epochTickFrequency() / 1000))}
});
}
int64_t Time::epochTicks() {
timeval tv;
gettimeofday(&tv, NULL);
return (int64_t)tv.tv_sec * 1'000'000 + tv.tv_usec;
}
int64_t Time::epochTickFrequency() {
return 1'000'000;
}
#ifdef STAR_SYSTEM_MACOS
struct MonotonicClock {
MonotonicClock() {
mach_timebase_info(&timebaseInfo);
};
int64_t ticks() const {
int64_t t = mach_absolute_time();
return (t / 100) * timebaseInfo.numer / timebaseInfo.denom;
}
int64_t frequency() const {
// hard coded to 100ns increments
return 10'000'000;
}
mach_timebase_info_data_t timebaseInfo;
};
#else
struct MonotonicClock {
MonotonicClock() {
timespec ts;
clock_getres(CLOCK_MONOTONIC, &ts);
starAssert(ts.tv_sec == 0);
storedFrequency = 1'000'000'000 / ts.tv_nsec;
};
int64_t ticks() const {
timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return ts.tv_sec * storedFrequency + ts.tv_nsec * storedFrequency / 1'000'000'000;
}
int64_t frequency() const {
return storedFrequency;
}
int64_t storedFrequency;
};
#endif
static MonotonicClock g_monotonicClock;
int64_t Time::monotonicTicks() {
return g_monotonicClock.ticks();
}
int64_t Time::monotonicTickFrequency() {
return g_monotonicClock.frequency();
}
}
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